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<button class="button is-small is-link">Go</button> </div> </div> </form> </div> </div> <ol class="breathe-horizontal" start="1"> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2412.08242">arXiv:2412.08242</a> <span> [<a href="https://arxiv.org/pdf/2412.08242">pdf</a>, <a href="https://arxiv.org/format/2412.08242">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> </div> <p class="title is-5 mathjax"> Viscoelastic lubrication of a submerged cylinder sliding down an incline </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Oratis%2C+A+T">Alexandros T. Oratis</a>, <a href="/search/physics?searchtype=author&query=Berg%2C+K+v+d">Kai van den Berg</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Snoeijer%2C+J+H">Jacco H. Snoeijer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2412.08242v1-abstract-short" style="display: inline;"> Lubrication flows between two solid surfaces can be found in a variety of biological and engineering settings. In many of these systems, the lubricant exhibits viscoelastic properties, which modify the associated lubrication forces. Here, we experimentally study viscoelastic lubrication by considering the motion of a submerged cylinder sliding down an incline. We demonstrate that cylinders move fa… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.08242v1-abstract-full').style.display = 'inline'; document.getElementById('2412.08242v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2412.08242v1-abstract-full" style="display: none;"> Lubrication flows between two solid surfaces can be found in a variety of biological and engineering settings. In many of these systems, the lubricant exhibits viscoelastic properties, which modify the associated lubrication forces. Here, we experimentally study viscoelastic lubrication by considering the motion of a submerged cylinder sliding down an incline. We demonstrate that cylinders move faster when released in a viscoelastic Boger liquid compared to a Newtonian liquid with similar viscosity. Cylinders exhibit pure sliding motion in viscoelastic liquids, in contrast to the stick-slip motion observed in Newtonian liquids. We rationalize our results by using the second-order fluid model, which predicts a lift force on the cylinder arising from the normal-stress differences provided by the dissolved polymers. The interplay between viscoelastic lift, viscous friction, and gravity leads to a prediction for the sliding speed, which is consistent with our experimental results for weakly viscoelastic flows. Finally, we identify a remarkable difference between the lubrication of cylindrical and spherical contacts, as the latter does not exhibit any lift for weak viscoelasticity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2412.08242v1-abstract-full').style.display = 'none'; document.getElementById('2412.08242v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 11 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2024. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2410.24115">arXiv:2410.24115</a> <span> [<a href="https://arxiv.org/pdf/2410.24115">pdf</a>, <a href="https://arxiv.org/format/2410.24115">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Computational Physics">physics.comp-ph</span> </div> </div> <p class="title is-5 mathjax"> gSeaGen code by KM3NeT: an efficient tool to propagate muons simulated with CORSIKA </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Aiello%2C+S">S. Aiello</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+A">A. Albert</a>, <a href="/search/physics?searchtype=author&query=Alhebsi%2C+A+R">A. R. Alhebsi</a>, <a href="/search/physics?searchtype=author&query=Alshamsi%2C+M">M. Alshamsi</a>, <a href="/search/physics?searchtype=author&query=Garre%2C+S+A">S. Alves Garre</a>, <a href="/search/physics?searchtype=author&query=Ambrosone%2C+A">A. Ambrosone</a>, <a href="/search/physics?searchtype=author&query=Ameli%2C+F">F. Ameli</a>, <a href="/search/physics?searchtype=author&query=Andre%2C+M">M. Andre</a>, <a href="/search/physics?searchtype=author&query=Aphecetche%2C+L">L. Aphecetche</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+S">S. Ardid</a>, <a href="/search/physics?searchtype=author&query=Atmani%2C+H">H. Atmani</a>, <a href="/search/physics?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/physics?searchtype=author&query=Badaracco%2C+F">F. Badaracco</a>, <a href="/search/physics?searchtype=author&query=Bailly-Salins%2C+L">L. Bailly-Salins</a>, <a href="/search/physics?searchtype=author&query=Barda%C4%8Dov%C3%A1%2C+Z">Z. Barda膷ov谩</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Bariego-Quintana%2C+A">A. Bariego-Quintana</a>, <a href="/search/physics?searchtype=author&query=Becherini%2C+Y">Y. Becherini</a>, <a href="/search/physics?searchtype=author&query=Bendahman%2C+M">M. Bendahman</a>, <a href="/search/physics?searchtype=author&query=Benfenati%2C+F">F. Benfenati</a>, <a href="/search/physics?searchtype=author&query=Benhassi%2C+M">M. Benhassi</a>, <a href="/search/physics?searchtype=author&query=Bennani%2C+M">M. Bennani</a>, <a href="/search/physics?searchtype=author&query=Benoit%2C+D+M">D. M. Benoit</a>, <a href="/search/physics?searchtype=author&query=Berbee%2C+E">E. Berbee</a> , et al. (238 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2410.24115v4-abstract-short" style="display: inline;"> The KM3NeT Collaboration has tackled a common challenge faced by the astroparticle physics community, namely adapting the experiment-specific simulation software to work with the CORSIKA air shower simulation output. The proposed solution is an extension of the open-source code gSeaGen, allowing for the transport of muons generated by CORSIKA to a detector of any size at an arbitrary depth. The gS… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.24115v4-abstract-full').style.display = 'inline'; document.getElementById('2410.24115v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2410.24115v4-abstract-full" style="display: none;"> The KM3NeT Collaboration has tackled a common challenge faced by the astroparticle physics community, namely adapting the experiment-specific simulation software to work with the CORSIKA air shower simulation output. The proposed solution is an extension of the open-source code gSeaGen, allowing for the transport of muons generated by CORSIKA to a detector of any size at an arbitrary depth. The gSeaGen code was not only extended in terms of functionalities but also underwent a thorough redesign of the muon propagation routine, resulting in a more accurate and efficient simulation. This paper presents the capabilities of the new gSeaGen code as well as prospects for further developments. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2410.24115v4-abstract-full').style.display = 'none'; document.getElementById('2410.24115v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 October, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">27 pages, 13 figures, submitted to Computer Physics Communications</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2409.10723">arXiv:2409.10723</a> <span> [<a href="https://arxiv.org/pdf/2409.10723">pdf</a>, <a href="https://arxiv.org/format/2409.10723">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> </div> <p class="title is-5 mathjax"> Sticking without contact: Elastohydrodynamic adhesion </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Oratis%2C+A+T">Alexandros T. Oratis</a>, <a href="/search/physics?searchtype=author&query=Snoeijer%2C+J+H">Jacco H. Snoeijer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2409.10723v1-abstract-short" style="display: inline;"> The adhesion between dry solid surfaces is typically governed by contact forces, involving surface forces and elasticity. For surfaces immersed in a fluid, out-of-contact adhesion arises due to the viscous resistance to the opening of the liquid gap. While the adhesion between dry solids is described by the classical JKR theory, there is no equivalent framework for the wet adhesion of soft solids.… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.10723v1-abstract-full').style.display = 'inline'; document.getElementById('2409.10723v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2409.10723v1-abstract-full" style="display: none;"> The adhesion between dry solid surfaces is typically governed by contact forces, involving surface forces and elasticity. For surfaces immersed in a fluid, out-of-contact adhesion arises due to the viscous resistance to the opening of the liquid gap. While the adhesion between dry solids is described by the classical JKR theory, there is no equivalent framework for the wet adhesion of soft solids. Here, we investigate theoretically the viscous adhesion emerging during the separation of a sphere from an elastic substrate. The suction pressure within the thin viscous film between the solids induces significant elastic displacements. Unexpectedly, the elastic substrate closely follows the motion of the sphere, leading to a sticking without contact. The initial dynamics is described using similarity solutions, resulting in a nonlinear adhesion force that grows in time as F ~ t^(2/3). When elastic displacements become large enough, another similarity solution emerges that leads to a violent snap-off of the adhesive contact through a finite-time singularity. The observed phenomenology bears a strong resemblance with JKR theory, and is relevant for a wide range of applications involving viscous adhesion. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2409.10723v1-abstract-full').style.display = 'none'; document.getElementById('2409.10723v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">12 pages, 8 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2407.07833">arXiv:2407.07833</a> <span> [<a href="https://arxiv.org/pdf/2407.07833">pdf</a>, <a href="https://arxiv.org/format/2407.07833">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> </div> <p class="title is-5 mathjax"> Viscoelastic wetting transition: beyond lubrication theory </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kansal%2C+M">Minkush Kansal</a>, <a href="/search/physics?searchtype=author&query=Datt%2C+C">Charu Datt</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Snoeijer%2C+J+H">Jacco H. Snoeijer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2407.07833v3-abstract-short" style="display: inline;"> The dip-coating geometry, where a solid plate is withdrawn from or plunged into a liquid pool, offers a prototypical example of wetting flows involving contact-line motion. Such flows are commonly studied using the lubrication approximation approach which is intrinsically limited to small interface slopes and thus small contact angles. Flows for arbitrary contact angles, however, can be studied us… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.07833v3-abstract-full').style.display = 'inline'; document.getElementById('2407.07833v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.07833v3-abstract-full" style="display: none;"> The dip-coating geometry, where a solid plate is withdrawn from or plunged into a liquid pool, offers a prototypical example of wetting flows involving contact-line motion. Such flows are commonly studied using the lubrication approximation approach which is intrinsically limited to small interface slopes and thus small contact angles. Flows for arbitrary contact angles, however, can be studied using a generalized lubrication theory that builds upon viscous corner flow solutions. Here we derive this generalized lubrication theory for viscoelastic liquids that exhibit normal stress effects and are modelled using the second-order fluid model. We apply our theory to advancing and receding contact lines in the dip-coating geometry, highlighting the influence of viscoelastic normal stresses for contact line motion at arbitrary contact angle. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.07833v3-abstract-full').style.display = 'none'; document.getElementById('2407.07833v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 November, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 10 July, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">27 pages, 9 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2405.07230">arXiv:2405.07230</a> <span> [<a href="https://arxiv.org/pdf/2405.07230">pdf</a>, <a href="https://arxiv.org/format/2405.07230">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/s10686-024-09971-7">10.1007/s10686-024-09971-7 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Acoustic Positioning for Deep Sea Neutrino Telescopes with a System of Piezo Sensors Integrated into Glass Spheres </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Albert%2C+A">A. Albert</a>, <a href="/search/physics?searchtype=author&query=Alves%2C+S">S. Alves</a>, <a href="/search/physics?searchtype=author&query=Andr%C3%A9%2C+M">M. Andr茅</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+S">S. Ardid</a>, <a href="/search/physics?searchtype=author&query=Aubert%2C+J+-">J. -J. Aubert</a>, <a href="/search/physics?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Basa%2C+S">S. Basa</a>, <a href="/search/physics?searchtype=author&query=Becherini%2C+Y">Y. Becherini</a>, <a href="/search/physics?searchtype=author&query=Belhorma%2C+B">B. Belhorma</a>, <a href="/search/physics?searchtype=author&query=Bendahman%2C+M">M. Bendahman</a>, <a href="/search/physics?searchtype=author&query=Benfenati%2C+F">F. Benfenati</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">V. Bertin</a>, <a href="/search/physics?searchtype=author&query=Biagi%2C+S">S. Biagi</a>, <a href="/search/physics?searchtype=author&query=Boumaaza%2C+J">J. Boumaaza</a>, <a href="/search/physics?searchtype=author&query=Bouta%2C+M">M. Bouta</a>, <a href="/search/physics?searchtype=author&query=Bouwhuis%2C+M+C">M. C. Bouwhuis</a>, <a href="/search/physics?searchtype=author&query=Br%C3%A2nza%C5%9F%2C+H">H. Br芒nza艧</a>, <a href="/search/physics?searchtype=author&query=Bruijn%2C+R">R. Bruijn</a>, <a href="/search/physics?searchtype=author&query=Brunner%2C+J">J. Brunner</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Caiffi%2C+B">B. Caiffi</a>, <a href="/search/physics?searchtype=author&query=Calvo%2C+D">D. Calvo</a>, <a href="/search/physics?searchtype=author&query=Campion%2C+S">S. Campion</a> , et al. (115 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2405.07230v2-abstract-short" style="display: inline;"> Position calibration in the deep sea is typically done by means of acoustic multilateration using three or more acoustic emitters installed at known positions. Rather than using hydrophones as receivers that are exposed to the ambient pressure, the sound signals can be coupled to piezo ceramics glued to the inside of existing containers for electronics or measuring instruments of a deep sea infras… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.07230v2-abstract-full').style.display = 'inline'; document.getElementById('2405.07230v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2405.07230v2-abstract-full" style="display: none;"> Position calibration in the deep sea is typically done by means of acoustic multilateration using three or more acoustic emitters installed at known positions. Rather than using hydrophones as receivers that are exposed to the ambient pressure, the sound signals can be coupled to piezo ceramics glued to the inside of existing containers for electronics or measuring instruments of a deep sea infrastructure. The ANTARES neutrino telescope operated from 2006 until 2022 in the Mediterranean Sea at a depth exceeding 2000m. It comprised nearly 900 glass spheres with 432mm diameter and 15mm thickness, equipped with photomultiplier tubes to detect Cherenkov light from tracks of charged elementary particles. In an experimental setup within ANTARES, piezo sensors have been glued to the inside of such - otherwise empty - glass spheres. These sensors recorded signals from acoustic emitters with frequencies from 46545 to 60235Hz. Two waves propagating through the glass sphere are found as a result of the excitation by the waves in the water. These can be qualitatively associated with symmetric and asymmetric Lamb-like waves of zeroth order: a fast (early) one with $v_e \approx 5$mm/$渭$s and a slow (late) one with $v_\ell \approx 2$mm/$渭$s. Taking these findings into account improves the accuracy of the position calibration. The results can be transferred to the KM3NeT neutrino telescope, currently under construction at multiple sites in the Mediterranean Sea, for which the concept of piezo sensors glued to the inside of glass spheres has been adapted for monitoring the positions of the photomultiplier tubes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2405.07230v2-abstract-full').style.display = 'none'; document.getElementById('2405.07230v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 7 January, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 12 May, 2024; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Published by "Experimental Astronomy"</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Exp Astron 59, 6 (2025) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2401.00459">arXiv:2401.00459</a> <span> [<a href="https://arxiv.org/pdf/2401.00459">pdf</a>, <a href="https://arxiv.org/format/2401.00459">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.133.254001">10.1103/PhysRevLett.133.254001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Interfacial dripping faucet: generating monodisperse liquid lenses </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Champougny%2C+L">Lor猫ne Champougny</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Snoeijer%2C+J+H">Jacco H. Snoeijer</a>, <a href="/search/physics?searchtype=author&query=Rodr%C3%ADguez-Rodr%C3%ADguez%2C+J">Javier Rodr铆guez-Rodr铆guez</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2401.00459v3-abstract-short" style="display: inline;"> We present a surface analog to a dripping faucet, where a viscous liquid slides down an immiscible meniscus. Periodic pinch-off of the dripping filament is observed, generating a succession of monodisperse floating lenses. We show that this interfacial dripping faucet can be described analogously to its single-phase counterpart, replacing surface tension by the spreading coefficient, and even unde… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.00459v3-abstract-full').style.display = 'inline'; document.getElementById('2401.00459v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2401.00459v3-abstract-full" style="display: none;"> We present a surface analog to a dripping faucet, where a viscous liquid slides down an immiscible meniscus. Periodic pinch-off of the dripping filament is observed, generating a succession of monodisperse floating lenses. We show that this interfacial dripping faucet can be described analogously to its single-phase counterpart, replacing surface tension by the spreading coefficient, and even undergoes a transition to a jetting regime. This liquid/liquid/gas system opens perspectives for the study of the dynamics of emulsions at interfaces. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2401.00459v3-abstract-full').style.display = 'none'; document.getElementById('2401.00459v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 December, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 31 December, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2024. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">13 pages, 10 figures, 5 supplemental movies</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.14872">arXiv:2311.14872</a> <span> [<a href="https://arxiv.org/pdf/2311.14872">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> The Power Board of the KM3NeT Digital Optical Module: design, upgrade, and production </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Aiello%2C+S">S. Aiello</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+A">A. Albert</a>, <a href="/search/physics?searchtype=author&query=Garre%2C+S+A">S. Alves Garre</a>, <a href="/search/physics?searchtype=author&query=Aly%2C+Z">Z. Aly</a>, <a href="/search/physics?searchtype=author&query=Ambrosone%2C+A">A. Ambrosone</a>, <a href="/search/physics?searchtype=author&query=Ameli%2C+F">F. Ameli</a>, <a href="/search/physics?searchtype=author&query=Andre%2C+M">M. Andre</a>, <a href="/search/physics?searchtype=author&query=Androutsou%2C+E">E. Androutsou</a>, <a href="/search/physics?searchtype=author&query=Anguita%2C+M">M. Anguita</a>, <a href="/search/physics?searchtype=author&query=Aphecetche%2C+L">L. Aphecetche</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+S">S. Ardid</a>, <a href="/search/physics?searchtype=author&query=Atmani%2C+H">H. Atmani</a>, <a href="/search/physics?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/physics?searchtype=author&query=Badaracco%2C+F">F. Badaracco</a>, <a href="/search/physics?searchtype=author&query=Bailly-Salins%2C+L">L. Bailly-Salins</a>, <a href="/search/physics?searchtype=author&query=Bardacova%2C+Z">Z. Bardacova</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Quintana%2C+A+B">A. Bariego Quintana</a>, <a href="/search/physics?searchtype=author&query=Pree%2C+S+B+d">S. Basegmez du Pree</a>, <a href="/search/physics?searchtype=author&query=Becherini%2C+Y">Y. Becherini</a>, <a href="/search/physics?searchtype=author&query=Bendahman%2C+M">M. Bendahman</a>, <a href="/search/physics?searchtype=author&query=Benfenati%2C+F">F. Benfenati</a>, <a href="/search/physics?searchtype=author&query=Benhassi%2C+M">M. Benhassi</a>, <a href="/search/physics?searchtype=author&query=Benoit%2C+D+M">D. M. Benoit</a> , et al. (259 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.14872v1-abstract-short" style="display: inline;"> The KM3NeT Collaboration is building an underwater neutrino observatory at the bottom of the Mediterranean Sea consisting of two neutrino telescopes, both composed of a three-dimensional array of light detectors, known as digital optical modules. Each digital optical module contains a set of 31 three inch photomultiplier tubes distributed over the surface of a 0.44 m diameter pressure-resistant gl… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.14872v1-abstract-full').style.display = 'inline'; document.getElementById('2311.14872v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.14872v1-abstract-full" style="display: none;"> The KM3NeT Collaboration is building an underwater neutrino observatory at the bottom of the Mediterranean Sea consisting of two neutrino telescopes, both composed of a three-dimensional array of light detectors, known as digital optical modules. Each digital optical module contains a set of 31 three inch photomultiplier tubes distributed over the surface of a 0.44 m diameter pressure-resistant glass sphere. The module includes also calibration instruments and electronics for power, readout and data acquisition. The power board was developed to supply power to all the elements of the digital optical module. The design of the power board began in 2013, and several prototypes were produced and tested. After an exhaustive validation process in various laboratories within the KM3NeT Collaboration, a mass production batch began, resulting in the construction of over 1200 power boards so far. These boards were integrated in the digital optical modules that have already been produced and deployed, 828 until October 2023. In 2017, an upgrade of the power board, to increase reliability and efficiency, was initiated. After the validation of a pre-production series, a production batch of 800 upgraded boards is currently underway. This paper describes the design, architecture, upgrade, validation, and production of the power board, including the reliability studies and tests conducted to ensure the safe operation at the bottom of the Mediterranean Sea throughout the observatory's lifespan <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.14872v1-abstract-full').style.display = 'none'; document.getElementById('2311.14872v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 24 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2311.09477">arXiv:2311.09477</a> <span> [<a href="https://arxiv.org/pdf/2311.09477">pdf</a>, <a href="https://arxiv.org/format/2311.09477">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> </div> <p class="title is-5 mathjax"> Frozen Cheerios effect: Particle-particle interaction induced by an advancing solidification front </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Meijer%2C+J+G">Jochem G. Meijer</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Lohse%2C+D">Detlef Lohse</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2311.09477v4-abstract-short" style="display: inline;"> Particles at liquid interfaces have the tendency to cluster due to capillary forces competing with gravitational buoyancy (i.e., normal to the distorted free surface). This is known as the Cheerios effect. Here we experimentally and theoretically study the interaction between two submerged particles near an advancing water-ice interface during the freezing process. Particles that are thermally mor… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.09477v4-abstract-full').style.display = 'inline'; document.getElementById('2311.09477v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2311.09477v4-abstract-full" style="display: none;"> Particles at liquid interfaces have the tendency to cluster due to capillary forces competing with gravitational buoyancy (i.e., normal to the distorted free surface). This is known as the Cheerios effect. Here we experimentally and theoretically study the interaction between two submerged particles near an advancing water-ice interface during the freezing process. Particles that are thermally more conductive than water are observed to attract each other and form clusters once frozen. We call this feature the frozen Cheerios effect, where interactions are driven by alterations to the direction of the experienced repelling force (i.e., normal to the distorted isotherm). On the other hand, particles less conductive than water separate, highlighting the importance of thermal conduction during freezing. Based on existing models for single particle trapping in ice, we develop an understanding of multiple particle interaction. We find that the overall efficacy of the particle-particle interaction critically depends on the solidification front velocity. Our theory explains why the thermal conductivity mismatch between the particles and water dictates the attractive/repulsive nature of the particle-particle interaction. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2311.09477v4-abstract-full').style.display = 'none'; document.getElementById('2311.09477v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 3 February, 2025; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 November, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">18 pages, 7 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2310.11114">arXiv:2310.11114</a> <span> [<a href="https://arxiv.org/pdf/2310.11114">pdf</a>, <a href="https://arxiv.org/format/2310.11114">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> </div> </div> <p class="title is-5 mathjax"> Viscoelastic wetting: Cox-Voinov theory with normal stress effects </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kansal%2C+M">Minkush Kansal</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Datt%2C+C">Charu Datt</a>, <a href="/search/physics?searchtype=author&query=Eggers%2C+J">Jens Eggers</a>, <a href="/search/physics?searchtype=author&query=Snoeijer%2C+J+H">Jacco H. Snoeijer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2310.11114v2-abstract-short" style="display: inline;"> The classical Cox-Voinov theory of contact line motion provides a relation between the macroscopically observable contact angle, and the microscopic wetting angle as a function of contact line velocity. Here we investigate how viscoelasticity, specifically the normal stress effect, modifies wetting dynamics. Using the thin film equation for the second-order fluid, it is found that the normal stres… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.11114v2-abstract-full').style.display = 'inline'; document.getElementById('2310.11114v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2310.11114v2-abstract-full" style="display: none;"> The classical Cox-Voinov theory of contact line motion provides a relation between the macroscopically observable contact angle, and the microscopic wetting angle as a function of contact line velocity. Here we investigate how viscoelasticity, specifically the normal stress effect, modifies wetting dynamics. Using the thin film equation for the second-order fluid, it is found that the normal stress effect is dominant at small scales. We show that the effect can be incorporated in the Cox-Voinov theory through an apparent microscopic angle, which differs from the true microscopic angle. The theory is applied to the classical problems of drop spreading and dip-coating, which shows how normal stress facilitates (inhibits) the motion of advancing (receding) contact lines. For rapid advancing motion, the apparent microscopic angle can tend to zero in which case the dynamics is described by a new regime that was already anticipated in Boudaoud (2007). <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2310.11114v2-abstract-full').style.display = 'none'; document.getElementById('2310.11114v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 October, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2308.10754">arXiv:2308.10754</a> <span> [<a href="https://arxiv.org/pdf/2308.10754">pdf</a>, <a href="https://arxiv.org/format/2308.10754">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1017/jfm.2024.310">10.1017/jfm.2024.310 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Similarity solutions in elastohydrodynamic bouncing </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2308.10754v2-abstract-short" style="display: inline;"> We investigate theoretically and numerically the impact of an elastic sphere on a rigid wall in a viscous fluid. Our focus is on the dynamics of the contact, employing the soft lubrication model in which the sphere is separated from the wall by a thin liquid film. In the limit of large sphere inertia, the sphere bounces and the dynamics is close to the Hertz theory. Remarkably, the film thickness… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.10754v2-abstract-full').style.display = 'inline'; document.getElementById('2308.10754v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2308.10754v2-abstract-full" style="display: none;"> We investigate theoretically and numerically the impact of an elastic sphere on a rigid wall in a viscous fluid. Our focus is on the dynamics of the contact, employing the soft lubrication model in which the sphere is separated from the wall by a thin liquid film. In the limit of large sphere inertia, the sphere bounces and the dynamics is close to the Hertz theory. Remarkably, the film thickness separating the sphere from the wall exhibits non-trivial self-similar properties that vary during the spreading and retraction phases. Leveraging these self-similar properties, we establish the energy budget and predict the coefficient of restitution for the sphere. The general framework derived here opens many perspectives to study the lubrication film in impact problems. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2308.10754v2-abstract-full').style.display = 'none'; document.getElementById('2308.10754v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 March, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 21 August, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Fluid Mech. 986 (2024) A13 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2307.05991">arXiv:2307.05991</a> <span> [<a href="https://arxiv.org/pdf/2307.05991">pdf</a>, <a href="https://arxiv.org/format/2307.05991">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Classical Physics">physics.class-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> </div> <p class="title is-5 mathjax"> Unsteady drag force on an immersed sphere oscillating near a wall </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Zhang%2C+Z">Zaicheng Zhang</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Essink%2C+M">Martin Essink</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+H">Hao Zhang</a>, <a href="/search/physics?searchtype=author&query=Fares%2C+N">Nicolas Fares</a>, <a href="/search/physics?searchtype=author&query=Shen%2C+Z">Zaiyi Shen</a>, <a href="/search/physics?searchtype=author&query=Bickel%2C+T">Thomas Bickel</a>, <a href="/search/physics?searchtype=author&query=Salez%2C+T">Thomas Salez</a>, <a href="/search/physics?searchtype=author&query=Maali%2C+A">Abdelhamid Maali</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2307.05991v1-abstract-short" style="display: inline;"> The unsteady hydrodynamic drag exerted on an oscillating sphere near a planar wall is addressed experimentally, theoretically, and numerically. The experiments are performed by using colloidal-probe Atomic Force Microscopy (AFM) in thermal noise mode. The natural resonance frequencies and quality factors are extracted from the measurement of the power spectrum density of the probe oscillation for… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.05991v1-abstract-full').style.display = 'inline'; document.getElementById('2307.05991v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2307.05991v1-abstract-full" style="display: none;"> The unsteady hydrodynamic drag exerted on an oscillating sphere near a planar wall is addressed experimentally, theoretically, and numerically. The experiments are performed by using colloidal-probe Atomic Force Microscopy (AFM) in thermal noise mode. The natural resonance frequencies and quality factors are extracted from the measurement of the power spectrum density of the probe oscillation for a broad range of gap distances and Womersley numbers. The shift in the natural resonance frequency of the colloidal probe as the probe goes close to a solid wall infers the wall-induced variations of the effective mass of the probe. Interestingly, a crossover from a positive to a negative shift is observed as the Womersley number increases. In order to rationalize the results, the confined unsteady Stokes equation is solved numerically using a finite-element method, as well as asymptotic calculations.The in-phase and out-of-phase terms of the hydrodynamic drag acting on the sphere are obtained and agree well to the experimental results. All together, the experimental, theoretical, and numerical results show that the hydrodynamic force felt by an immersed sphere oscillating near a wall is highly dependent on the Womersley number. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2307.05991v1-abstract-full').style.display = 'none'; document.getElementById('2307.05991v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 July, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2023. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2305.01363">arXiv:2305.01363</a> <span> [<a href="https://arxiv.org/pdf/2305.01363">pdf</a>, <a href="https://arxiv.org/ps/2305.01363">ps</a>, <a href="https://arxiv.org/format/2305.01363">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> </div> </div> <p class="title is-5 mathjax"> Coalescence of bubbles in a viscoelastic liquid </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Oratis%2C+A+T">Alexandros T. Oratis</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Snoeijer%2C+J+H">Jacco H. Snoeijer</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2305.01363v1-abstract-short" style="display: inline;"> When two bubbles submerged in a liquid are brought closely together, the intermediate liquid film separating the bubbles begins to drain. Once the film ruptures, the bubbles coalesce and form a neck that expands with time. The dynamics of the neck growth are well understood in the context of pure, Newtonian liquids. Yet, much less is known about the dynamics of this singularity when the surroundin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.01363v1-abstract-full').style.display = 'inline'; document.getElementById('2305.01363v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2305.01363v1-abstract-full" style="display: none;"> When two bubbles submerged in a liquid are brought closely together, the intermediate liquid film separating the bubbles begins to drain. Once the film ruptures, the bubbles coalesce and form a neck that expands with time. The dynamics of the neck growth are well understood in the context of pure, Newtonian liquids. Yet, much less is known about the dynamics of this singularity when the surrounding liquid contains long flexible polymers, which provide viscoelastic characteristics to the liquid's properties. Here, we experimentally study the coalescence of bubbles surrounded by polymer solutions. In contrast to drop coalescence, and in spite of the singular stretching of polymers, we find that the presence of the dissolved polymers does not at all affect the coalescence dynamics at early times. The polymer elasticity is found to slow down the flow only during the later stages of coalescence. These observations are interpreted using an asymptotic solution of the Oldroyd-B model, which predicts a strong stress singularity near the extremity of the neck. However, the polymer stress turns out to diverge only in the azimuthal direction, which can explain why elastic effects remain subdominant during the initial stages of coalescence. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2305.01363v1-abstract-full').style.display = 'none'; document.getElementById('2305.01363v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 May, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2023. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">14 pages, 9 figures</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2212.05821">arXiv:2212.05821</a> <span> [<a href="https://arxiv.org/pdf/2212.05821">pdf</a>, <a href="https://arxiv.org/format/2212.05821">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Classical Physics">physics.class-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1098/rspa.2022.0832">10.1098/rspa.2022.0832 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Mechanical response of a thick poroelastic gel in contactless colloidal-probe rheology </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Kopecz-Muller%2C+C">Caroline Kopecz-Muller</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Raphael%2C+E">Elie Raphael</a>, <a href="/search/physics?searchtype=author&query=Mcgraw%2C+J+D">Joshua D Mcgraw</a>, <a href="/search/physics?searchtype=author&query=Salez%2C+T">Thomas Salez</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2212.05821v1-abstract-short" style="display: inline;"> When a rigid object approaches a soft material in a viscous fluid, hydrodynamic stresses arise in the lubricated contact region and deform the soft material. The elastic deformation modifies in turn the flow, hence generating a soft-lubrication coupling. Moreover, soft elastomers and gels are often porous. These materials may be filled with solvent or uncrosslinked polymer chains, and might be per… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.05821v1-abstract-full').style.display = 'inline'; document.getElementById('2212.05821v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2212.05821v1-abstract-full" style="display: none;"> When a rigid object approaches a soft material in a viscous fluid, hydrodynamic stresses arise in the lubricated contact region and deform the soft material. The elastic deformation modifies in turn the flow, hence generating a soft-lubrication coupling. Moreover, soft elastomers and gels are often porous. These materials may be filled with solvent or uncrosslinked polymer chains, and might be permeable to the surrounding fluid, which complexifies further the description. Here, we derive the point-force response of a semi-infinite and permeable poroelastic substrate. Then, we use this fundamental solution in order to address the specific poroelastic lubrication coupling associated with contactless colloidal-probe methods. In particular, we derive the conservative and dissipative components of the force associated with the oscillating vertical motion of a sphere close to the poroelastic substrate. Our results may be relevant for dynamic surface force apparatus and contactless colloidal-probe atomic force microscopy experiments on soft, living and/or fragile materials, such as swollen hydrogels and biological membranes. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2212.05821v1-abstract-full').style.display = 'none'; document.getElementById('2212.05821v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 12 December, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2206.07413">arXiv:2206.07413</a> <span> [<a href="https://arxiv.org/pdf/2206.07413">pdf</a>, <a href="https://arxiv.org/format/2206.07413">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Statistical Mechanics">cond-mat.stat-mech</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.130.038201">10.1103/PhysRevLett.130.038201 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Nanoparticle Taylor dispersion near charged surfaces with an open boundary </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Vilquin%2C+A">Alexandre Vilquin</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Rapha%C3%ABl%2C+E">Elie Rapha毛l</a>, <a href="/search/physics?searchtype=author&query=Dean%2C+D+S">David S Dean</a>, <a href="/search/physics?searchtype=author&query=Salez%2C+T">Thomas Salez</a>, <a href="/search/physics?searchtype=author&query=McGraw%2C+J+D">Joshua D. McGraw</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2206.07413v2-abstract-short" style="display: inline;"> The dispersive spreading of microscopic particles in shear flows is influenced both by advection and thermal motion. At the nanoscale, interactions between such particles and their confining boundaries become unavoidable. We address the roles of electrostatic repulsion and absorption on the spatial distribution and dispersion of charged nanoparticles in near-surface shear flows, observed under eva… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2206.07413v2-abstract-full').style.display = 'inline'; document.getElementById('2206.07413v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2206.07413v2-abstract-full" style="display: none;"> The dispersive spreading of microscopic particles in shear flows is influenced both by advection and thermal motion. At the nanoscale, interactions between such particles and their confining boundaries become unavoidable. We address the roles of electrostatic repulsion and absorption on the spatial distribution and dispersion of charged nanoparticles in near-surface shear flows, observed under evanescent illumination. The electrostatic repulsion between particles and the lower charged surface is tuned by varying electrolyte concentrations. Particles leaving the field of vision can be neglected from further analysis, such that the experimental ensemble is equivalent to that of Taylor dispersion with absorption. These two ingredients modify the particle distribution, deviating strongly from the Gibbs-Boltzmann one at the nanoscale studied here. The overall effect is to restrain the accessible space available to particles, leading to a striking, ten-fold reduction in the spreading dynamics as compared to the non-interacting case. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2206.07413v2-abstract-full').style.display = 'none'; document.getElementById('2206.07413v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 January, 2023; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 15 June, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2203.00322">arXiv:2203.00322</a> <span> [<a href="https://arxiv.org/pdf/2203.00322">pdf</a>, <a href="https://arxiv.org/format/2203.00322">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Classical Physics">physics.class-ph</span> </div> </div> <p class="title is-5 mathjax"> Enhanced Dip Coating on a Soft Substrate </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Snoeijer%2C+J">Jacco Snoeijer</a>, <a href="/search/physics?searchtype=author&query=Rapha%C3%ABl%2C+E">Elie Rapha毛l</a>, <a href="/search/physics?searchtype=author&query=Salez%2C+T">Thomas Salez</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2203.00322v1-abstract-short" style="display: inline;"> A solid, withdrawn from a liquid bath, entrains a thin liquid film. This simple process, first described by Landau, Levich and Derjaguin (LLD), is commonly observed in everyday life. It also plays a central role in liquid capture by animals, and is widely used for surface-coating purposes in industry. Motivated by the emerging interest in the mechanics of very soft materials, and in particular the… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.00322v1-abstract-full').style.display = 'inline'; document.getElementById('2203.00322v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2203.00322v1-abstract-full" style="display: none;"> A solid, withdrawn from a liquid bath, entrains a thin liquid film. This simple process, first described by Landau, Levich and Derjaguin (LLD), is commonly observed in everyday life. It also plays a central role in liquid capture by animals, and is widely used for surface-coating purposes in industry. Motivated by the emerging interest in the mechanics of very soft materials, and in particular the resulting elastocapillary coupling, we develop a dip-coating model that accounts for the additional presence of a soft solid layer atop the rigid plate. The elastic response of this soft layer is described by a Winkler's foundation. Using a combination of numerical, scaling and asymptotic-matching methods, we find a new softness-dependent power-law regime for the thickness of entrained liquid at small capillary number, which corresponds to a modified physics at play in the dynamic meniscus. The crossover between this regime and the classical dip-coating one occurs when the substrate's deformation is comparable to the thickness of the entrained liquid film. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2203.00322v1-abstract-full').style.display = 'none'; document.getElementById('2203.00322v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 1 March, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2022. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Physical Review Fluids, 7 L102002 (2022) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2202.04386">arXiv:2202.04386</a> <span> [<a href="https://arxiv.org/pdf/2202.04386">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Classical Physics">physics.class-ph</span> </div> </div> <p class="title is-5 mathjax"> Contactless Rheology of Soft Gels over a Broad Frequency Range </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Zhang%2C+Z">Zaicheng Zhang</a>, <a href="/search/physics?searchtype=author&query=Arshad%2C+M">Muhammad Arshad</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Almohamad%2C+S">Samir Almohamad</a>, <a href="/search/physics?searchtype=author&query=Rapha%C3%ABl%2C+E">Elie Rapha毛l</a>, <a href="/search/physics?searchtype=author&query=Salez%2C+T">Thomas Salez</a>, <a href="/search/physics?searchtype=author&query=Maali%2C+A">Abdelhamid Maali</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2202.04386v1-abstract-short" style="display: inline;"> We report contactless measurements of the viscoelastic rheological properties of soft gels. The experiments are performed using a colloidal-probe Atomic Force Microscope (AFM) in a liquid environment and in dynamic mode. The mechanical response is measured as a function of the liquid gap thickness for different oscillation frequencies. Our measurements reveal an elastohydrodynamic (EHD) coupling b… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.04386v1-abstract-full').style.display = 'inline'; document.getElementById('2202.04386v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2202.04386v1-abstract-full" style="display: none;"> We report contactless measurements of the viscoelastic rheological properties of soft gels. The experiments are performed using a colloidal-probe Atomic Force Microscope (AFM) in a liquid environment and in dynamic mode. The mechanical response is measured as a function of the liquid gap thickness for different oscillation frequencies. Our measurements reveal an elastohydrodynamic (EHD) coupling between the flow induced by the probe oscillation and the viscoelastic deformation of the gels. The data are quantitatively described by a viscoelastic lubrication model. The frequency-dependent storage and loss moduli of the polydimethylsiloxane (PDMS) gels are extracted from fits of the data to the model and are in good agreement with the Chasset--Thirion law. Our results demonstrate that contactless colloidal-probe methods are powerful tools that can be used for probing soft interfaces finely over a wide range of frequencies. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2202.04386v1-abstract-full').style.display = 'none'; document.getElementById('2202.04386v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 9 February, 2022; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2022. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2107.08063">arXiv:2107.08063</a> <span> [<a href="https://arxiv.org/pdf/2107.08063">pdf</a>, <a href="https://arxiv.org/format/2107.08063">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Atmospheric and Oceanic Physics">physics.ao-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Populations and Evolution">q-bio.PE</span> </div> </div> <p class="title is-5 mathjax"> Studying Bioluminescence Flashes with the ANTARES Deep Sea Neutrino Telescope </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Reeb%2C+N">N. Reeb</a>, <a href="/search/physics?searchtype=author&query=Hutschenreuter%2C+S">S. Hutschenreuter</a>, <a href="/search/physics?searchtype=author&query=Zehetner%2C+P">P. Zehetner</a>, <a href="/search/physics?searchtype=author&query=Ensslin%2C+T">T. Ensslin</a>, <a href="/search/physics?searchtype=author&query=Alves%2C+S">S. Alves</a>, <a href="/search/physics?searchtype=author&query=Andr%C3%A9%2C+M">M. Andr茅</a>, <a href="/search/physics?searchtype=author&query=Anghinolfi%2C+M">M. Anghinolfi</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Aubert%2C+J+-">J. -J. Aubert</a>, <a href="/search/physics?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Basa%2C+S">S. Basa</a>, <a href="/search/physics?searchtype=author&query=Belhorma%2C+B">B. Belhorma</a>, <a href="/search/physics?searchtype=author&query=Bendahman%2C+M">M. Bendahman</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">V. Bertin</a>, <a href="/search/physics?searchtype=author&query=Biagi%2C+S">S. Biagi</a>, <a href="/search/physics?searchtype=author&query=Bissinger%2C+M">M. Bissinger</a>, <a href="/search/physics?searchtype=author&query=Boumaaza%2C+J">J. Boumaaza</a>, <a href="/search/physics?searchtype=author&query=Bouta%2C+M">M. Bouta</a>, <a href="/search/physics?searchtype=author&query=Bouwhuis%2C+M+C">M. C. Bouwhuis</a>, <a href="/search/physics?searchtype=author&query=Br%C3%A2nza%C5%9F%2C+H">H. Br芒nza艧</a>, <a href="/search/physics?searchtype=author&query=Bruijn%2C+R">R. Bruijn</a>, <a href="/search/physics?searchtype=author&query=Brunner%2C+J">J. Brunner</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a> , et al. (119 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2107.08063v1-abstract-short" style="display: inline;"> We develop a novel technique to exploit the extensive data sets provided by underwater neutrino telescopes to gain information on bioluminescence in the deep sea. The passive nature of the telescopes gives us the unique opportunity to infer information on bioluminescent organisms without actively interfering with them. We propose a statistical method that allows us to reconstruct the light emissio… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.08063v1-abstract-full').style.display = 'inline'; document.getElementById('2107.08063v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2107.08063v1-abstract-full" style="display: none;"> We develop a novel technique to exploit the extensive data sets provided by underwater neutrino telescopes to gain information on bioluminescence in the deep sea. The passive nature of the telescopes gives us the unique opportunity to infer information on bioluminescent organisms without actively interfering with them. We propose a statistical method that allows us to reconstruct the light emission of individual organisms, as well as their location and movement. A mathematical model is built to describe the measurement process of underwater neutrino telescopes and the signal generation of the biological organisms. The Metric Gaussian Variational Inference algorithm is used to reconstruct the model parameters using photon counts recorded by the neutrino detectors. We apply this method to synthetic data sets and data collected by the ANTARES neutrino telescope. The telescope is located 40 km off the French coast and fixed to the sea floor at a depth of 2475 m. The runs with synthetic data reveal that we can reliably model the emitted bioluminescent flashes of the organisms. Furthermore, we find that the spatial resolution of the localization of light sources highly depends on the configuration of the telescope. Precise measurements of the efficiencies of the detectors and the attenuation length of the water are crucial to reconstruct the light emission. Finally, the application to ANTARES data reveals the first precise localizations of bioluminescent organisms using neutrino telescope data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2107.08063v1-abstract-full').style.display = 'none'; document.getElementById('2107.08063v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 July, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2021. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2104.00900">arXiv:2104.00900</a> <span> [<a href="https://arxiv.org/pdf/2104.00900">pdf</a>, <a href="https://arxiv.org/format/2104.00900">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Classical Physics">physics.class-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1017/jfm.2021.1063">10.1017/jfm.2021.1063 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Soft-lubrication interactions between a rigid sphere and an elastic wall </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Amarouchene%2C+Y">Yacine Amarouchene</a>, <a href="/search/physics?searchtype=author&query=Raphael%2C+E">Elie Raphael</a>, <a href="/search/physics?searchtype=author&query=Salez%2C+T">Thomas Salez</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2104.00900v2-abstract-short" style="display: inline;"> The motion of an object within a viscous fluid and in the vicinity of a soft surface induces a hydrodynamic stress field that deforms the latter, thus modifying the boundary conditions of the flow. This results in elastohydrodynamic (EHD) interactions experienced by the particle. Here, we derive a soft-lubrication model, in order to compute all the forces and torque applied on a rigid sphere that… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.00900v2-abstract-full').style.display = 'inline'; document.getElementById('2104.00900v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2104.00900v2-abstract-full" style="display: none;"> The motion of an object within a viscous fluid and in the vicinity of a soft surface induces a hydrodynamic stress field that deforms the latter, thus modifying the boundary conditions of the flow. This results in elastohydrodynamic (EHD) interactions experienced by the particle. Here, we derive a soft-lubrication model, in order to compute all the forces and torque applied on a rigid sphere that is free to translate and rotate near an elastic wall. We focus on the limit of small deformations of the surface with respect to the fluid-gap thickness, and perform a perturbation analysis in dimensionless compliance. The response is computed in the framework of linear elasticity, for planar elastic substrates in the limiting cases of thick and thin layers. The EHD forces are also obtained analytically using the Lorentz reciprocal theorem. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.00900v2-abstract-full').style.display = 'none'; document.getElementById('2104.00900v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Fluid Mech. 933 (2022) A23 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2103.09513">arXiv:2103.09513</a> <span> [<a href="https://arxiv.org/pdf/2103.09513">pdf</a>, <a href="https://arxiv.org/format/2103.09513">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1039/D1SM00387A">10.1039/D1SM00387A <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Swimming droplet in 1D geometries, an active Bretherton problem </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=de+Blois%2C+C">Charlotte de Blois</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Suda%2C+S">Saori Suda</a>, <a href="/search/physics?searchtype=author&query=Ichikawa%2C+M">Masatoshi Ichikawa</a>, <a href="/search/physics?searchtype=author&query=Reyssat%2C+M">Mathilde Reyssat</a>, <a href="/search/physics?searchtype=author&query=Dauchot%2C+O">Olivier Dauchot</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2103.09513v2-abstract-short" style="display: inline;"> We investigate experimentally the behavior of self-propelled water-in-oil droplets, confined in capillaries of different square and circular cross-sections. The droplet's activity comes from the formation of swollen micelles at its interface. In straight capillaries the velocity of the droplet decreases with increasing confinement. However at very high confinement, the velocity converges toward a… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.09513v2-abstract-full').style.display = 'inline'; document.getElementById('2103.09513v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2103.09513v2-abstract-full" style="display: none;"> We investigate experimentally the behavior of self-propelled water-in-oil droplets, confined in capillaries of different square and circular cross-sections. The droplet's activity comes from the formation of swollen micelles at its interface. In straight capillaries the velocity of the droplet decreases with increasing confinement. However at very high confinement, the velocity converges toward a non-zero value, so that even very long droplets swim. Stretched circular capillaries are then used to explore even higher confinement. The lubrication layer around the droplet then takes a non-uniform thickness which constitutes a significant difference with usual flow-driven passive droplets. A neck forms at the rear of the droplet, deepens with increasing confinement, and eventually undergoes successive spontaneous splitting events for large enough confinement. Such observations stress the critical role of the activity of the droplet interface on the droplet's behavior under confinement. We then propose an analytical formulation by integrating the interface activity and the swollen micelles transport problem into the classical Bretherton approach. The model accounts for the convergence of the droplet's velocity to a finite value for large confinement, and for the non-classical shape of the lubrication layer. We further discuss on the saturation of the micelles concentration along the interface, which would explain the divergence of the lubrication layer thickness for long enough droplets, eventually leading to the spontaneous droplet division. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2103.09513v2-abstract-full').style.display = 'none'; document.getElementById('2103.09513v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 June, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 17 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2021. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Soft Matter, 2021,17, 6646-6660 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2009.14531">arXiv:2009.14531</a> <span> [<a href="https://arxiv.org/pdf/2009.14531">pdf</a>, <a href="https://arxiv.org/format/2009.14531">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Classical Physics">physics.class-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevResearch.3.L032007">10.1103/PhysRevResearch.3.L032007 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Contactless rheology of finite-size air-water interfaces </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Zhang%2C+Z">Zaicheng Zhang</a>, <a href="/search/physics?searchtype=author&query=Boisgard%2C+R">Rodolphe Boisgard</a>, <a href="/search/physics?searchtype=author&query=Grauby-Heywang%2C+C">Christine Grauby-Heywang</a>, <a href="/search/physics?searchtype=author&query=Raphael%2C+E">Elie Raphael</a>, <a href="/search/physics?searchtype=author&query=Salez%2C+T">Thomas Salez</a>, <a href="/search/physics?searchtype=author&query=Maali%2C+A">Abdelhamid Maali</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2009.14531v3-abstract-short" style="display: inline;"> We present contactless atomic-force microscopy measurements of the hydrodynamic interactions between a rigid sphere and an air bubble in water at the micro-scale. The size of the bubble is found to have a significant effect on the response due to the long-range capillary deformation of the air-water interface. To rationalize the experimental data, we develop a viscocapillary lubrication model acco… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2009.14531v3-abstract-full').style.display = 'inline'; document.getElementById('2009.14531v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2009.14531v3-abstract-full" style="display: none;"> We present contactless atomic-force microscopy measurements of the hydrodynamic interactions between a rigid sphere and an air bubble in water at the micro-scale. The size of the bubble is found to have a significant effect on the response due to the long-range capillary deformation of the air-water interface. To rationalize the experimental data, we develop a viscocapillary lubrication model accounting for the finite-size effect. The comparison between experiments and theory allows us to measure the air-water surface tension, without contact, paving the way towards robust contactless tensiometry of polluted air-water interfaces. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2009.14531v3-abstract-full').style.display = 'none'; document.getElementById('2009.14531v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 2 March, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 September, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Research 3, 032007 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2007.08261">arXiv:2007.08261</a> <span> [<a href="https://arxiv.org/pdf/2007.08261">pdf</a>, <a href="https://arxiv.org/format/2007.08261">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Classical Physics">physics.class-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevFluids.6.064201">10.1103/PhysRevFluids.6.064201 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Time dependence of advection-diffusion coupling for nanoparticle ensembles </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Vilquin%2C+A">Alexandre Vilquin</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Soulard%2C+P">Pierre Soulard</a>, <a href="/search/physics?searchtype=author&query=Guyard%2C+G">Gabriel Guyard</a>, <a href="/search/physics?searchtype=author&query=Rapha%C3%ABl%2C+E">Elie Rapha毛l</a>, <a href="/search/physics?searchtype=author&query=Restagno%2C+F">Frederic Restagno</a>, <a href="/search/physics?searchtype=author&query=Salez%2C+T">Thomas Salez</a>, <a href="/search/physics?searchtype=author&query=Mcgraw%2C+J">Joshua Mcgraw</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2007.08261v4-abstract-short" style="display: inline;"> Advection-diffusion coupling can enhance particle and solute dispersion by orders of magnitude as compared to pure diffusion, with a steady state being reached for confined flow regions such as a nanopore or blood vessel. Here, by using evanescent wave microscopy, we measure for the first time the full dynamics of Taylor dispersion, highlighting the crucial role of the initial concentration profil… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.08261v4-abstract-full').style.display = 'inline'; document.getElementById('2007.08261v4-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2007.08261v4-abstract-full" style="display: none;"> Advection-diffusion coupling can enhance particle and solute dispersion by orders of magnitude as compared to pure diffusion, with a steady state being reached for confined flow regions such as a nanopore or blood vessel. Here, by using evanescent wave microscopy, we measure for the first time the full dynamics of Taylor dispersion, highlighting the crucial role of the initial concentration profile. We make time-dependent, nanometrically-resolved particle dispersion measurements varying nanoparticle size, velocity gradient, and viscosity in sub-micrometric near-surface flows. Such resolution permits a measure of the full dynamical approach and crossover into the steady state, revealing a family of master curves. Remarkably, our results show that the dynamics depend sensitively on the initial spatial distribution of the nanoparticles. These observations are in quantitative agreement with existing analytical models and numerical simulations performed herein. We anticipate that our study will be a first step toward observing and modelling more complex situations at the nanoscale, such as target finding and chemical reactions in nanoconfined flows, dynamical adsorption and capture problems, as well as nanoscale drug delivery systems. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2007.08261v4-abstract-full').style.display = 'none'; document.getElementById('2007.08261v4-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 29 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 July, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Fluids 6, 064201 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2005.01974">arXiv:2005.01974</a> <span> [<a href="https://arxiv.org/pdf/2005.01974">pdf</a>, <a href="https://arxiv.org/format/2005.01974">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1017/jfm.2020.1045">10.1017/jfm.2020.1045 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Capillary Levelling of Immiscible Bilayer Films </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Lee%2C+C">Carmen Lee</a>, <a href="/search/physics?searchtype=author&query=Salez%2C+T">Thomas Salez</a>, <a href="/search/physics?searchtype=author&query=Raphael%2C+E">Elie Raphael</a>, <a href="/search/physics?searchtype=author&query=Dalnoki-Veress%2C+K">Kari Dalnoki-Veress</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2005.01974v1-abstract-short" style="display: inline;"> Flow in thin films is highly dependent on the boundary conditions. Here, we study the capillary levelling of thin bilayer films composed of two immiscible liquids. Specifically, a stepped polymer layer is placed atop another, flat polymer layer. The Laplace pressure gradient resulting from the curvature of the step induces flow in both layers, which dissipates the excess capillary energy stored in… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.01974v1-abstract-full').style.display = 'inline'; document.getElementById('2005.01974v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2005.01974v1-abstract-full" style="display: none;"> Flow in thin films is highly dependent on the boundary conditions. Here, we study the capillary levelling of thin bilayer films composed of two immiscible liquids. Specifically, a stepped polymer layer is placed atop another, flat polymer layer. The Laplace pressure gradient resulting from the curvature of the step induces flow in both layers, which dissipates the excess capillary energy stored in the stepped interface. The effect of different viscosity ratios between the bottom and top layers is investigated. We invoke a long-wave expansion of low-Reynolds-number hydrodynamics to model the energy dissipation due to the coupled viscous flows in the two layers. Good agreement is found between the experiments and the model. Analysis of the latter further reveals an interesting double crossover in time, from Poiseuille flow, to plug flow, and finally to Couette flow. The crossover time scales depend on the viscosity ratio between the two liquids, allowing for the dissipation mechanisms to be selected and finely tuned by varying this ratio. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2005.01974v1-abstract-full').style.display = 'none'; document.getElementById('2005.01974v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 5 May, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> J. Fluid Mech. 911 (2021) A13 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/2004.08254">arXiv:2004.08254</a> <span> [<a href="https://arxiv.org/pdf/2004.08254">pdf</a>, <a href="https://arxiv.org/format/2004.08254">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/1748-0221/15/10/P10005">10.1088/1748-0221/15/10/P10005 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Event reconstruction for KM3NeT/ORCA using convolutional neural networks </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Aiello%2C+S">Sebastiano Aiello</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+A">Arnauld Albert</a>, <a href="/search/physics?searchtype=author&query=Garre%2C+S+A">Sergio Alves Garre</a>, <a href="/search/physics?searchtype=author&query=Aly%2C+Z">Zineb Aly</a>, <a href="/search/physics?searchtype=author&query=Ameli%2C+F">Fabrizio Ameli</a>, <a href="/search/physics?searchtype=author&query=Andre%2C+M">Michel Andre</a>, <a href="/search/physics?searchtype=author&query=Androulakis%2C+G">Giorgos Androulakis</a>, <a href="/search/physics?searchtype=author&query=Anghinolfi%2C+M">Marco Anghinolfi</a>, <a href="/search/physics?searchtype=author&query=Anguita%2C+M">Mancia Anguita</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">Gisela Anton</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">Miquel Ardid</a>, <a href="/search/physics?searchtype=author&query=Aublin%2C+J">Julien Aublin</a>, <a href="/search/physics?searchtype=author&query=Bagatelas%2C+C">Christos Bagatelas</a>, <a href="/search/physics?searchtype=author&query=Barbarino%2C+G">Giancarlo Barbarino</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">Bruny Baret</a>, <a href="/search/physics?searchtype=author&query=Pree%2C+S+B+d">Suzan Basegmez du Pree</a>, <a href="/search/physics?searchtype=author&query=Bendahman%2C+M">Meriem Bendahman</a>, <a href="/search/physics?searchtype=author&query=Berbee%2C+E">Edward Berbee</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Biagi%2C+S">Simone Biagi</a>, <a href="/search/physics?searchtype=author&query=Biagioni%2C+A">Andrea Biagioni</a>, <a href="/search/physics?searchtype=author&query=Bissinger%2C+M">Matthias Bissinger</a>, <a href="/search/physics?searchtype=author&query=Boettcher%2C+M">Markus Boettcher</a>, <a href="/search/physics?searchtype=author&query=Boumaaza%2C+J">Jihad Boumaaza</a>, <a href="/search/physics?searchtype=author&query=Bouta%2C+M">Mohammed Bouta</a> , et al. (207 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="2004.08254v1-abstract-short" style="display: inline;"> The KM3NeT research infrastructure is currently under construction at two locations in the Mediterranean Sea. The KM3NeT/ORCA water-Cherenkov neutrino detector off the French coast will instrument several megatons of seawater with photosensors. Its main objective is the determination of the neutrino mass ordering. This work aims at demonstrating the general applicability of deep convolutional neur… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.08254v1-abstract-full').style.display = 'inline'; document.getElementById('2004.08254v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2004.08254v1-abstract-full" style="display: none;"> The KM3NeT research infrastructure is currently under construction at two locations in the Mediterranean Sea. The KM3NeT/ORCA water-Cherenkov neutrino detector off the French coast will instrument several megatons of seawater with photosensors. Its main objective is the determination of the neutrino mass ordering. This work aims at demonstrating the general applicability of deep convolutional neural networks to neutrino telescopes, using simulated datasets for the KM3NeT/ORCA detector as an example. To this end, the networks are employed to achieve reconstruction and classification tasks that constitute an alternative to the analysis pipeline presented for KM3NeT/ORCA in the KM3NeT Letter of Intent. They are used to infer event reconstruction estimates for the energy, the direction, and the interaction point of incident neutrinos. The spatial distribution of Cherenkov light generated by charged particles induced in neutrino interactions is classified as shower- or track-like, and the main background processes associated with the detection of atmospheric neutrinos are recognized. Performance comparisons to machine-learning classification and maximum-likelihood reconstruction algorithms previously developed for KM3NeT/ORCA are provided. It is shown that this application of deep convolutional neural networks to simulated datasets for a large-volume neutrino telescope yields competitive reconstruction results and performance improvements with respect to classical approaches. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2004.08254v1-abstract-full').style.display = 'none'; document.getElementById('2004.08254v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 April, 2020; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> April 2020. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 15 P10005 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1912.07930">arXiv:1912.07930</a> <span> [<a href="https://arxiv.org/pdf/1912.07930">pdf</a>, <a href="https://arxiv.org/format/1912.07930">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.124.184502">10.1103/PhysRevLett.124.184502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Symmetrization of Thin Free-Standing Liquid Films via Capillary-Driven Flow </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Niven%2C+J">John Niven</a>, <a href="/search/physics?searchtype=author&query=Stone%2C+H+A">Howard A. Stone</a>, <a href="/search/physics?searchtype=author&query=Salez%2C+T">Thomas Salez</a>, <a href="/search/physics?searchtype=author&query=Raphael%2C+E">Elie Raphael</a>, <a href="/search/physics?searchtype=author&query=Dalnoki-Veress%2C+K">Kari Dalnoki-Veress</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1912.07930v1-abstract-short" style="display: inline;"> We present experiments to study the relaxation of a nano-scale cylindrical perturbation at one of the two interfaces of a thin viscous free-standing polymeric film. Driven by capillarity, the film flows and evolves towards equilibrium by first symmetrizing the perturbation between the two interfaces, and eventually broadening the perturbation. A full-Stokes hydrodynamic model is presented which ac… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.07930v1-abstract-full').style.display = 'inline'; document.getElementById('1912.07930v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.07930v1-abstract-full" style="display: none;"> We present experiments to study the relaxation of a nano-scale cylindrical perturbation at one of the two interfaces of a thin viscous free-standing polymeric film. Driven by capillarity, the film flows and evolves towards equilibrium by first symmetrizing the perturbation between the two interfaces, and eventually broadening the perturbation. A full-Stokes hydrodynamic model is presented which accounts for both the vertical and lateral flows, and which highlights the symmetry in the system. The symmetrization time is found to depend on the membrane thickness, surface tension, and viscosity. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.07930v1-abstract-full').style.display = 'none'; document.getElementById('1912.07930v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 17 December, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 124, 184502 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1907.05849">arXiv:1907.05849</a> <span> [<a href="https://arxiv.org/pdf/1907.05849">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Classical Physics">physics.class-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevLett.124.054502">10.1103/PhysRevLett.124.054502 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Direct Measurement of the Elastohydrodynamic Lift Force at the Nanoscale </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Zhang%2C+Z">Zaicheng Zhang</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Arshad%2C+M">Muhammad Arshad</a>, <a href="/search/physics?searchtype=author&query=Raphael%2C+E">Elie Raphael</a>, <a href="/search/physics?searchtype=author&query=Salez%2C+T">Thomas Salez</a>, <a href="/search/physics?searchtype=author&query=Maali%2C+A">Abdelhamid Maali</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1907.05849v2-abstract-short" style="display: inline;"> We present the first direct measurement of the elastohydrodynamic lift force acting on a sphere moving within a viscous liquid, near and along a soft substrate under nanometric confinement. Using atomic force microscopy, the lift force is probed as a function of the gap size, for various driving velocities, viscosities, and stiffnesses. The force increases as the gap is reduced and shows a saturat… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1907.05849v2-abstract-full').style.display = 'inline'; document.getElementById('1907.05849v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1907.05849v2-abstract-full" style="display: none;"> We present the first direct measurement of the elastohydrodynamic lift force acting on a sphere moving within a viscous liquid, near and along a soft substrate under nanometric confinement. Using atomic force microscopy, the lift force is probed as a function of the gap size, for various driving velocities, viscosities, and stiffnesses. The force increases as the gap is reduced and shows a saturation at small gap. The results are in excellent agreement with scaling arguments and a quantitative model developed from the soft lubrication theory, in linear elasticity, and for small compliances. For larger compliances, or equivalently for smaller confinement length scales, an empirical scaling law for the observed saturation of the lift force is given and discussed. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1907.05849v2-abstract-full').style.display = 'none'; document.getElementById('1907.05849v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 6 November, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 1 July, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Lett. 124, 054502 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1906.02704">arXiv:1906.02704</a> <span> [<a href="https://arxiv.org/pdf/1906.02704">pdf</a>, <a href="https://arxiv.org/format/1906.02704">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-020-7629-z">10.1140/epjc/s10052-020-7629-z <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Dependence of atmospheric muon flux on seawater depth measured with the first KM3NeT detection units </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=KM3NeT+Collaboration"> KM3NeT Collaboration</a>, <a href="/search/physics?searchtype=author&query=Ageron%2C+M">M. Ageron</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">S. Aiello</a>, <a href="/search/physics?searchtype=author&query=Ameli%2C+F">F. Ameli</a>, <a href="/search/physics?searchtype=author&query=Andre%2C+M">M. Andre</a>, <a href="/search/physics?searchtype=author&query=Androulakis%2C+G">G. Androulakis</a>, <a href="/search/physics?searchtype=author&query=Anghinolfi%2C+M">M. Anghinolfi</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/physics?searchtype=author&query=Bagatelas%2C+C">C. Bagatelas</a>, <a href="/search/physics?searchtype=author&query=Barbarino%2C+G">G. Barbarino</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Pree%2C+S+B+d">S. Basegmez du Pree</a>, <a href="/search/physics?searchtype=author&query=Belias%2C+A">A. Belias</a>, <a href="/search/physics?searchtype=author&query=Berbee%2C+E">E. Berbee</a>, <a href="/search/physics?searchtype=author&query=Berg%2C+A+M+v+d">A. M. van den Berg</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">V. Bertin</a>, <a href="/search/physics?searchtype=author&query=van+Beveren%2C+V">V. van Beveren</a>, <a href="/search/physics?searchtype=author&query=Biagi%2C+S">S. Biagi</a>, <a href="/search/physics?searchtype=author&query=Biagioni%2C+A">A. Biagioni</a>, <a href="/search/physics?searchtype=author&query=Bianucci%2C+S">S. Bianucci</a>, <a href="/search/physics?searchtype=author&query=Billault%2C+M">M. Billault</a>, <a href="/search/physics?searchtype=author&query=Bissinger%2C+M">M. Bissinger</a>, <a href="/search/physics?searchtype=author&query=de+Boer%2C+R">R. de Boer</a> , et al. (240 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1906.02704v3-abstract-short" style="display: inline;"> KM3NeT is a research infrastructure located in the Mediterranean Sea, that will consist of two deep-sea Cherenkov neutrino detectors. With one detector (ARCA), the KM3NeT Collaboration aims at identifying and studying TeV-PeV astrophysical neutrino sources. With the other detector (ORCA), the neutrino mass ordering will be determined by studying GeV-scale atmospheric neutrino oscillations. The fir… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1906.02704v3-abstract-full').style.display = 'inline'; document.getElementById('1906.02704v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1906.02704v3-abstract-full" style="display: none;"> KM3NeT is a research infrastructure located in the Mediterranean Sea, that will consist of two deep-sea Cherenkov neutrino detectors. With one detector (ARCA), the KM3NeT Collaboration aims at identifying and studying TeV-PeV astrophysical neutrino sources. With the other detector (ORCA), the neutrino mass ordering will be determined by studying GeV-scale atmospheric neutrino oscillations. The first KM3NeT detection units were deployed at the Italian and French sites between 2015 and 2017. In this paper, a description of the detector is presented, together with a summary of the procedures used to calibrate the detector in-situ. Finally, the measurement of the atmospheric muon flux between 2232-3386 m seawater depth is obtained. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1906.02704v3-abstract-full').style.display = 'none'; document.getElementById('1906.02704v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 4 February, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 June, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> June 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">15 pages, 9 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C 80, 99 (2020) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1902.06083">arXiv:1902.06083</a> <span> [<a href="https://arxiv.org/pdf/1902.06083">pdf</a>, <a href="https://arxiv.org/format/1902.06083">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-019-7259-5">10.1140/epjc/s10052-019-7259-5 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Letter of Interest for a Neutrino Beam from Protvino to KM3NeT/ORCA </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Akindinov%2C+A+V">A. V. Akindinov</a>, <a href="/search/physics?searchtype=author&query=Anassontzis%2C+E+G">E. G. Anassontzis</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Aublin%2C+J">J. Aublin</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">V. Bertin</a>, <a href="/search/physics?searchtype=author&query=Bourret%2C+S">S. Bourret</a>, <a href="/search/physics?searchtype=author&query=Bozza%2C+C">C. Bozza</a>, <a href="/search/physics?searchtype=author&query=Bruchner%2C+M">M. Bruchner</a>, <a href="/search/physics?searchtype=author&query=Bruijn%2C+R">R. Bruijn</a>, <a href="/search/physics?searchtype=author&query=Brunner%2C+J">J. Brunner</a>, <a href="/search/physics?searchtype=author&query=Chabab%2C+M">M. Chabab</a>, <a href="/search/physics?searchtype=author&query=Chau%2C+N">N. Chau</a>, <a href="/search/physics?searchtype=author&query=Chepurnov%2C+A+S">A. S. Chepurnov</a>, <a href="/search/physics?searchtype=author&query=Molla%2C+M+C">M. Colomer Molla</a>, <a href="/search/physics?searchtype=author&query=Coyle%2C+P">P. Coyle</a>, <a href="/search/physics?searchtype=author&query=Creusot%2C+A">A. Creusot</a>, <a href="/search/physics?searchtype=author&query=de+Wasseige%2C+G">G. de Wasseige</a>, <a href="/search/physics?searchtype=author&query=Domi%2C+A">A. Domi</a>, <a href="/search/physics?searchtype=author&query=Donzaud%2C+C">C. Donzaud</a>, <a href="/search/physics?searchtype=author&query=Eberl%2C+T">T. Eberl</a>, <a href="/search/physics?searchtype=author&query=Enzenh%C3%B6fer%2C+A">A. Enzenh枚fer</a>, <a href="/search/physics?searchtype=author&query=Faifman%2C+M">M. Faifman</a>, <a href="/search/physics?searchtype=author&query=Filipovi%C4%87%2C+M+D">M. D. Filipovi膰</a> , et al. (66 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1902.06083v3-abstract-short" style="display: inline;"> The Protvino accelerator facility located in the Moscow region, Russia, is in a good position to offer a rich experimental research program in the field of neutrino physics. Of particular interest is the possibility to direct a neutrino beam from Protvino towards the KM3NeT/ORCA detector, which is currently under construction in the Mediterranean Sea 40 km offshore Toulon, France. This proposal is… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.06083v3-abstract-full').style.display = 'inline'; document.getElementById('1902.06083v3-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1902.06083v3-abstract-full" style="display: none;"> The Protvino accelerator facility located in the Moscow region, Russia, is in a good position to offer a rich experimental research program in the field of neutrino physics. Of particular interest is the possibility to direct a neutrino beam from Protvino towards the KM3NeT/ORCA detector, which is currently under construction in the Mediterranean Sea 40 km offshore Toulon, France. This proposal is known as P2O. Thanks to its baseline of 2595 km, this experiment would yield an unparalleled sensitivity to matter effects in the Earth, allowing for the determination of the neutrino mass ordering with a high level of certainty after only a few years of running at a modest beam intensity of $\approx$ 90 kW. With a prolonged exposure ($\approx$ 1500 kW*yr), a 2$蟽$ sensitivity to the leptonic CP-violating Dirac phase can be achieved. A second stage of the experiment, comprising a further intensity upgrade of the accelerator complex and a densified version of the ORCA detector (Super-ORCA), would allow for up to a 6$蟽$ sensitivity to CP violation and a 10$^\circ$-17$^\circ$ resolution on the CP phase after 10 years of running with a 450 kW beam, competitive with other planned experiments. The initial composition and energy spectrum of the neutrino beam would need to be monitored by a near detector, to be constructed several hundred meters downstream from the proton beam target. The same neutrino beam and near detector set-up would also allow for neutrino-nucleus cross section measurements to be performed. A short-baseline sterile neutrino search experiment would also be possible. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1902.06083v3-abstract-full').style.display = 'none'; document.getElementById('1902.06083v3-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 21 August, 2019; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 16 February, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 2019. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">27 pages, 15 figures, 2 tables</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C (2019) 79: 758 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1708.03649">arXiv:1708.03649</a> <span> [<a href="https://arxiv.org/pdf/1708.03649">pdf</a>, <a href="https://arxiv.org/ps/1708.03649">ps</a>, <a href="https://arxiv.org/format/1708.03649">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> </div> <p class="title is-5 mathjax"> An algorithm for the reconstruction of neutrino-induced showers in the ANTARES neutrino telescope </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Albert%2C+A">A. Albert</a>, <a href="/search/physics?searchtype=author&query=Andr%C3%A9%2C+M">M. Andr茅</a>, <a href="/search/physics?searchtype=author&query=Anghinolfi%2C+M">M. Anghinolfi</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Aubert%2C+J+-">J. -J. Aubert</a>, <a href="/search/physics?searchtype=author&query=Avgitas%2C+T">T. Avgitas</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Barrios-Mart%C3%AD%2C+J">J. Barrios-Mart铆</a>, <a href="/search/physics?searchtype=author&query=Basa%2C+S">S. Basa</a>, <a href="/search/physics?searchtype=author&query=Belhorma%2C+B">B. Belhorma</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">V. Bertin</a>, <a href="/search/physics?searchtype=author&query=Biagi%2C+S">S. Biagi</a>, <a href="/search/physics?searchtype=author&query=Bormuth%2C+R">R. Bormuth</a>, <a href="/search/physics?searchtype=author&query=Bourret%2C+S">S. Bourret</a>, <a href="/search/physics?searchtype=author&query=Bouwhuis%2C+M+C">M. C. Bouwhuis</a>, <a href="/search/physics?searchtype=author&query=Br%C3%A2nza%C5%9F%2C+H">H. Br芒nza艧</a>, <a href="/search/physics?searchtype=author&query=Bruijn%2C+R">R. Bruijn</a>, <a href="/search/physics?searchtype=author&query=Brunner%2C+J">J. Brunner</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Capone%2C+A">A. Capone</a>, <a href="/search/physics?searchtype=author&query=Caramete%2C+L">L. Caramete</a>, <a href="/search/physics?searchtype=author&query=Carr%2C+J">J. Carr</a>, <a href="/search/physics?searchtype=author&query=Celli%2C+S">S. Celli</a>, <a href="/search/physics?searchtype=author&query=Moursli%2C+R+C+E">R. Cherkaoui El Moursli</a> , et al. (102 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1708.03649v2-abstract-short" style="display: inline;"> Muons created by $谓_渭$ charged current (CC) interactions in the water surrounding the ANTARES neutrino telescope have been almost exclusively used so far in searches for cosmic neutrino sources. Due to their long range, highly energetic muons inducing Cherenkov radiation in the water are reconstructed with dedicated algorithms that allow the determination of the parent neutrino direction with a me… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1708.03649v2-abstract-full').style.display = 'inline'; document.getElementById('1708.03649v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1708.03649v2-abstract-full" style="display: none;"> Muons created by $谓_渭$ charged current (CC) interactions in the water surrounding the ANTARES neutrino telescope have been almost exclusively used so far in searches for cosmic neutrino sources. Due to their long range, highly energetic muons inducing Cherenkov radiation in the water are reconstructed with dedicated algorithms that allow the determination of the parent neutrino direction with a median angular resolution of about \unit{0.4}{\degree} for an $E^{-2}$ neutrino spectrum. In this paper, an algorithm optimised for accurate reconstruction of energy and direction of shower events in the ANTARES detector is presented. Hadronic showers of electrically charged particles are produced by the disintegration of the nucleus both in CC and neutral current (NC) interactions of neutrinos in water. In addition, electromagnetic showers result from the CC interactions of electron neutrinos while the decay of a tau lepton produced in $谓_蟿$ CC interactions will in most cases lead to either a hadronic or an electromagnetic shower. A shower can be approximated as a point source of photons. With the presented method, the shower position is reconstructed with a precision of about \unit{1}{\metre}, the neutrino direction is reconstructed with a median angular resolution between \unit{2}{\degree} and \unit{3}{\degree} in the energy range of \SIrange{1}{1000}{TeV}. In this energy interval, the uncertainty on the reconstructed neutrino energy is about \SIrange{5}{10}{\%}. The increase in the detector sensitivity due to the use of additional information from shower events in the searches for a cosmic neutrino flux is also presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1708.03649v2-abstract-full').style.display = 'none'; document.getElementById('1708.03649v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 January, 2018; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 11 August, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 2017. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1703.10551">arXiv:1703.10551</a> <span> [<a href="https://arxiv.org/pdf/1703.10551">pdf</a>, <a href="https://arxiv.org/format/1703.10551">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Soft Condensed Matter">cond-mat.soft</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Mesoscale and Nanoscale Physics">cond-mat.mes-hall</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Materials Science">cond-mat.mtrl-sci</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Chemical Physics">physics.chem-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Fluid Dynamics">physics.flu-dyn</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1103/PhysRevFluids.2.094001">10.1103/PhysRevFluids.2.094001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Elastocapillary Levelling of Thin Viscous Films on Soft Substrates </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Rivetti%2C+M">Marco Rivetti</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">Vincent Bertin</a>, <a href="/search/physics?searchtype=author&query=Salez%2C+T">Thomas Salez</a>, <a href="/search/physics?searchtype=author&query=Hui%2C+C">Chung-Yuen Hui</a>, <a href="/search/physics?searchtype=author&query=Linne%2C+C">Christine Linne</a>, <a href="/search/physics?searchtype=author&query=Arutkin%2C+M">Maxence Arutkin</a>, <a href="/search/physics?searchtype=author&query=Wu%2C+H">Haibin Wu</a>, <a href="/search/physics?searchtype=author&query=Rapha%C3%ABl%2C+E">Elie Rapha毛l</a>, <a href="/search/physics?searchtype=author&query=B%C3%A4umchen%2C+O">Oliver B盲umchen</a> </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1703.10551v2-abstract-short" style="display: inline;"> A thin liquid film with non-zero curvature at its free surface spontaneously flows to reach a flat configuration, a process driven by Laplace pressure gradients and resisted by the liquid's viscosity. Inspired by recent progresses on the dynamics of liquid droplets on soft substrates, we here study the relaxation of a viscous film supported by an elastic foundation. Experiments involve thin polyme… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.10551v2-abstract-full').style.display = 'inline'; document.getElementById('1703.10551v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1703.10551v2-abstract-full" style="display: none;"> A thin liquid film with non-zero curvature at its free surface spontaneously flows to reach a flat configuration, a process driven by Laplace pressure gradients and resisted by the liquid's viscosity. Inspired by recent progresses on the dynamics of liquid droplets on soft substrates, we here study the relaxation of a viscous film supported by an elastic foundation. Experiments involve thin polymer films on elastomeric substrates, where the dynamics of the liquid-air interface is monitored using atomic force microscopy. A theoretical model that describes the coupled evolution of the solid-liquid and the liquid-air interfaces is also provided. In this soft-levelling configuration, Laplace pressure gradients not only drive the flow, but they also induce elastic deformations on the substrate that affect the flow and the shape of the liquid-air interface itself. This process represents an original example of elastocapillarity that is not mediated by the presence of a contact line. We discuss the impact of the elastic contribution on the levelling dynamics and show the departure from the classical self-similarities and power laws observed for capillary levelling on rigid substrates. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1703.10551v2-abstract-full').style.display = 'none'; document.getElementById('1703.10551v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 25 June, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 March, 2017; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> March 2017. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Fluids 2, 094001 (2017) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1612.05621">arXiv:1612.05621</a> <span> [<a href="https://arxiv.org/pdf/1612.05621">pdf</a>, <a href="https://arxiv.org/format/1612.05621">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Phenomenology">hep-ph</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1007/JHEP05(2017)008">10.1007/JHEP05(2017)008 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Intrinsic limits on resolutions in muon- and electron-neutrino charged-current events in the KM3NeT/ORCA detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Adri%C3%A1n-Mart%C3%ADnez%2C+S">S. Adri谩n-Mart铆nez</a>, <a href="/search/physics?searchtype=author&query=Ageron%2C+M">M. Ageron</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">S. Aiello</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+A">A. Albert</a>, <a href="/search/physics?searchtype=author&query=Ameli%2C+F">F. Ameli</a>, <a href="/search/physics?searchtype=author&query=Anassontzis%2C+E+G">E. G. Anassontzis</a>, <a href="/search/physics?searchtype=author&query=Andre%2C+M">M. Andre</a>, <a href="/search/physics?searchtype=author&query=Androulakis%2C+G">G. Androulakis</a>, <a href="/search/physics?searchtype=author&query=Anghinolfi%2C+M">M. Anghinolfi</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Avgitas%2C+T">T. Avgitas</a>, <a href="/search/physics?searchtype=author&query=Barbarino%2C+G">G. Barbarino</a>, <a href="/search/physics?searchtype=author&query=Barbarito%2C+E">E. Barbarito</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Barrios-Mart%C3%AD%2C+J">J. Barrios-Mart铆</a>, <a href="/search/physics?searchtype=author&query=Belias%2C+A">A. Belias</a>, <a href="/search/physics?searchtype=author&query=Berbee%2C+E">E. Berbee</a>, <a href="/search/physics?searchtype=author&query=Berg%2C+A+v+d">A. van den Berg</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">V. Bertin</a>, <a href="/search/physics?searchtype=author&query=Beurthey%2C+S">S. Beurthey</a>, <a href="/search/physics?searchtype=author&query=van+Beveren%2C+V">V. van Beveren</a>, <a href="/search/physics?searchtype=author&query=Beverini%2C+N">N. Beverini</a>, <a href="/search/physics?searchtype=author&query=Biagi%2C+S">S. Biagi</a>, <a href="/search/physics?searchtype=author&query=Biagioni%2C+A">A. Biagioni</a> , et al. (228 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1612.05621v2-abstract-short" style="display: inline;"> Studying atmospheric neutrino oscillations in the few-GeV range with a multimegaton detector promises to determine the neutrino mass hierarchy. This is the main science goal pursued by the future KM3NeT/ORCA water Cherenkov detector in the Mediterranean Sea. In this paper, the processes that limit the obtainable resolution in both energy and direction in charged-current neutrino events in the ORCA… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.05621v2-abstract-full').style.display = 'inline'; document.getElementById('1612.05621v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1612.05621v2-abstract-full" style="display: none;"> Studying atmospheric neutrino oscillations in the few-GeV range with a multimegaton detector promises to determine the neutrino mass hierarchy. This is the main science goal pursued by the future KM3NeT/ORCA water Cherenkov detector in the Mediterranean Sea. In this paper, the processes that limit the obtainable resolution in both energy and direction in charged-current neutrino events in the ORCA detector are investigated. These processes include the composition of the hadronic fragmentation products, the subsequent particle propagation and the photon-sampling fraction of the detector. GEANT simulations of neutrino interactions in seawater produced by GENIE are used to study the effects in the 1 - 20 GeV range. It is found that fluctuations in the hadronic cascade in conjunction with the variation of the inelasticity y are most detrimental to the resolutions. The effect of limited photon sampling in the detector is of significantly less importance. These results will therefore also be applicable to similar detectors/media, such as those in ice. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1612.05621v2-abstract-full').style.display = 'none'; document.getElementById('1612.05621v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 19 May, 2017; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 29 November, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">37 pages, 28 figures, JHEP published version</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> The KM3NeT collaboration, Adri{谩}n-Mart{\'谋}nez, S., Ageron, M. et al. J. High Energ. Phys. (2017) 2017: 8 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1601.07459">arXiv:1601.07459</a> <span> [<a href="https://arxiv.org/pdf/1601.07459">pdf</a>, <a href="https://arxiv.org/format/1601.07459">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1088/0954-3899/43/8/084001">10.1088/0954-3899/43/8/084001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Letter of Intent for KM3NeT 2.0 </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Adri%C3%A1n-Mart%C3%ADnez%2C+S">S. Adri谩n-Mart铆nez</a>, <a href="/search/physics?searchtype=author&query=Ageron%2C+M">M. Ageron</a>, <a href="/search/physics?searchtype=author&query=Aharonian%2C+F">F. Aharonian</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">S. Aiello</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+A">A. Albert</a>, <a href="/search/physics?searchtype=author&query=Ameli%2C+F">F. Ameli</a>, <a href="/search/physics?searchtype=author&query=Anassontzis%2C+E">E. Anassontzis</a>, <a href="/search/physics?searchtype=author&query=Andre%2C+M">M. Andre</a>, <a href="/search/physics?searchtype=author&query=Androulakis%2C+G">G. Androulakis</a>, <a href="/search/physics?searchtype=author&query=Anghinolfi%2C+M">M. Anghinolfi</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Avgitas%2C+T">T. Avgitas</a>, <a href="/search/physics?searchtype=author&query=Barbarino%2C+G">G. Barbarino</a>, <a href="/search/physics?searchtype=author&query=Barbarito%2C+E">E. Barbarito</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Barrios-Mart%C3%AD%2C+J">J. Barrios-Mart铆</a>, <a href="/search/physics?searchtype=author&query=Belhorma%2C+B">B. Belhorma</a>, <a href="/search/physics?searchtype=author&query=Belias%2C+A">A. Belias</a>, <a href="/search/physics?searchtype=author&query=Berbee%2C+E">E. Berbee</a>, <a href="/search/physics?searchtype=author&query=Berg%2C+A+v+d">A. van den Berg</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">V. Bertin</a>, <a href="/search/physics?searchtype=author&query=Beurthey%2C+S">S. Beurthey</a>, <a href="/search/physics?searchtype=author&query=van+Beveren%2C+V">V. van Beveren</a>, <a href="/search/physics?searchtype=author&query=Beverini%2C+N">N. Beverini</a> , et al. (222 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1601.07459v2-abstract-short" style="display: inline;"> The main objectives of the KM3NeT Collaboration are i) the discovery and subsequent observation of high-energy neutrino sources in the Universe and ii) the determination of the mass hierarchy of neutrinos. These objectives are strongly motivated by two recent important discoveries, namely: 1) The high-energy astrophysical neutrino signal reported by IceCube and 2) the sizable contribution of elect… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.07459v2-abstract-full').style.display = 'inline'; document.getElementById('1601.07459v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1601.07459v2-abstract-full" style="display: none;"> The main objectives of the KM3NeT Collaboration are i) the discovery and subsequent observation of high-energy neutrino sources in the Universe and ii) the determination of the mass hierarchy of neutrinos. These objectives are strongly motivated by two recent important discoveries, namely: 1) The high-energy astrophysical neutrino signal reported by IceCube and 2) the sizable contribution of electron neutrinos to the third neutrino mass eigenstate as reported by Daya Bay, Reno and others. To meet these objectives, the KM3NeT Collaboration plans to build a new Research Infrastructure consisting of a network of deep-sea neutrino telescopes in the Mediterranean Sea. A phased and distributed implementation is pursued which maximises the access to regional funds, the availability of human resources and the synergetic opportunities for the earth and sea sciences community. Three suitable deep-sea sites are identified, namely off-shore Toulon (France), Capo Passero (Italy) and Pylos (Greece). The infrastructure will consist of three so-called building blocks. A building block comprises 115 strings, each string comprises 18 optical modules and each optical module comprises 31 photo-multiplier tubes. Each building block thus constitutes a 3-dimensional array of photo sensors that can be used to detect the Cherenkov light produced by relativistic particles emerging from neutrino interactions. Two building blocks will be configured to fully explore the IceCube signal with different methodology, improved resolution and complementary field of view, including the Galactic plane. One building block will be configured to precisely measure atmospheric neutrino oscillations. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1601.07459v2-abstract-full').style.display = 'none'; document.getElementById('1601.07459v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 26 July, 2016; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 27 January, 2016; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> January 2016. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">119 pages, published version, revised Eq. 6, 7</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Journal of Physics G: Nuclear and Particle Physics, 43 (8), 084001, 2016 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1510.01561">arXiv:1510.01561</a> <span> [<a href="https://arxiv.org/pdf/1510.01561">pdf</a>, <a href="https://arxiv.org/format/1510.01561">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-015-3868-9">10.1140/epjc/s10052-015-3868-9 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The prototype detection unit of the KM3NeT detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=KM3NeT+Collaboration"> KM3NeT Collaboration</a>, <a href="/search/physics?searchtype=author&query=Adri%C3%A1n-Mart%C3%ADnez%2C+S">S. Adri谩n-Mart铆nez</a>, <a href="/search/physics?searchtype=author&query=Ageron%2C+M">M. Ageron</a>, <a href="/search/physics?searchtype=author&query=Aharonian%2C+F">F. Aharonian</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">S. Aiello</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+A">A. Albert</a>, <a href="/search/physics?searchtype=author&query=Ameli%2C+F">F. Ameli</a>, <a href="/search/physics?searchtype=author&query=Anassontzis%2C+E+G">E. G. Anassontzis</a>, <a href="/search/physics?searchtype=author&query=Androulakis%2C+G+C">G. C. Androulakis</a>, <a href="/search/physics?searchtype=author&query=Anghinolfi%2C+M">M. Anghinolfi</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Anvar%2C+S">S. Anvar</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Avgitas%2C+T">T. Avgitas</a>, <a href="/search/physics?searchtype=author&query=Balasi%2C+K">K. Balasi</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H">H. Band</a>, <a href="/search/physics?searchtype=author&query=Barbarino%2C+G">G. Barbarino</a>, <a href="/search/physics?searchtype=author&query=Barbarito%2C+E">E. Barbarito</a>, <a href="/search/physics?searchtype=author&query=Barbato%2C+F">F. Barbato</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Baron%2C+S">S. Baron</a>, <a href="/search/physics?searchtype=author&query=Barrios%2C+J">J. Barrios</a>, <a href="/search/physics?searchtype=author&query=Belias%2C+A">A. Belias</a>, <a href="/search/physics?searchtype=author&query=Berbee%2C+E">E. Berbee</a>, <a href="/search/physics?searchtype=author&query=Berg%2C+A+M+v+d">A. M. van den Berg</a> , et al. (224 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1510.01561v2-abstract-short" style="display: inline;"> A prototype detection unit of the KM3NeT deep-sea neutrino telescope has been installed at 3500m depth 80km offshore the Italian coast. KM3NeT in its final configuration will contain several hundreds of detection units. Each detection unit is a mechanical structure anchored to the sea floor, held vertical by a submerged buoy and supporting optical modules for the detection of Cherenkov light emitt… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1510.01561v2-abstract-full').style.display = 'inline'; document.getElementById('1510.01561v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1510.01561v2-abstract-full" style="display: none;"> A prototype detection unit of the KM3NeT deep-sea neutrino telescope has been installed at 3500m depth 80km offshore the Italian coast. KM3NeT in its final configuration will contain several hundreds of detection units. Each detection unit is a mechanical structure anchored to the sea floor, held vertical by a submerged buoy and supporting optical modules for the detection of Cherenkov light emitted by charged secondary particles emerging from neutrino interactions. This prototype string implements three optical modules with 31 photomultiplier tubes each. These optical modules were developed by the KM3NeT Collaboration to enhance the detection capability of neutrino interactions. The prototype detection unit was operated since its deployment in May 2014 until its decommissioning in July 2015. Reconstruction of the particle trajectories from the data requires a nanosecond accuracy in the time calibration. A procedure for relative time calibration of the photomultiplier tubes contained in each optical module is described. This procedure is based on the measured coincidences produced in the sea by the 40K background light and can easily be expanded to a detector with several thousands of optical modules. The time offsets between the different optical modules are obtained using LED nanobeacons mounted inside them. A set of data corresponding to 600 hours of livetime was analysed. The results show good agreement with Monte Carlo simulations of the expected optical background and the signal from atmospheric muons. An almost background-free sample of muons was selected by filtering the time correlated signals on all the three optical modules. The zenith angle of the selected muons was reconstructed with a precision of about 3掳. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1510.01561v2-abstract-full').style.display = 'none'; document.getElementById('1510.01561v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 23 December, 2015; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 6 October, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> October 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Accepted for publication by EPJ C</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Eur. Phys. J. C (2016) 76:54 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1507.04182">arXiv:1507.04182</a> <span> [<a href="https://arxiv.org/pdf/1507.04182">pdf</a>, <a href="https://arxiv.org/ps/1507.04182">ps</a>, <a href="https://arxiv.org/format/1507.04182">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.astropartphys.2016.02.001">10.1016/j.astropartphys.2016.02.001 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Time calibration with atmospheric muon tracks in the ANTARES neutrino telescope </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Adri%C3%A1n-Mart%C3%ADnez%2C+S">S. Adri谩n-Mart铆nez</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+A">A. Albert</a>, <a href="/search/physics?searchtype=author&query=Andr%C3%A9%2C+M">M. Andr茅</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Aubert%2C+J+-">J. -J. Aubert</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Barrios-Mart%C3%AD%2C+J">J. Barrios-Mart铆</a>, <a href="/search/physics?searchtype=author&query=Basa%2C+S">S. Basa</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">V. Bertin</a>, <a href="/search/physics?searchtype=author&query=Biagi%2C+S">S. Biagi</a>, <a href="/search/physics?searchtype=author&query=Bogazzi%2C+C">C. Bogazzi</a>, <a href="/search/physics?searchtype=author&query=Bormuth%2C+R">R. Bormuth</a>, <a href="/search/physics?searchtype=author&query=Bou-Cabo%2C+M">M. Bou-Cabo</a>, <a href="/search/physics?searchtype=author&query=Bouwhuis%2C+M+C">M. C. Bouwhuis</a>, <a href="/search/physics?searchtype=author&query=Bruijn%2C+R">R. Bruijn</a>, <a href="/search/physics?searchtype=author&query=Brunner%2C+J">J. Brunner</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Capone%2C+A">A. Capone</a>, <a href="/search/physics?searchtype=author&query=Caramete%2C+L">L. Caramete</a>, <a href="/search/physics?searchtype=author&query=Carr%2C+J">J. Carr</a>, <a href="/search/physics?searchtype=author&query=Chiarusi%2C+T">T. Chiarusi</a>, <a href="/search/physics?searchtype=author&query=Circella%2C+M">M. Circella</a>, <a href="/search/physics?searchtype=author&query=Coniglione%2C+R">R. Coniglione</a>, <a href="/search/physics?searchtype=author&query=Costantini%2C+H">H. Costantini</a> , et al. (105 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1507.04182v1-abstract-short" style="display: inline;"> The ANTARES experiment consists of an array of photomultipliers distributed along 12 lines and located deep underwater in the Mediterranean Sea. It searches for astrophysical neutrinos collecting the Cherenkov light induced by the charged particles, mainly muons, produced in neutrino interactions around the detector. Since at energies of $\sim$10 TeV the muon and the incident neutrino are almost c… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.04182v1-abstract-full').style.display = 'inline'; document.getElementById('1507.04182v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1507.04182v1-abstract-full" style="display: none;"> The ANTARES experiment consists of an array of photomultipliers distributed along 12 lines and located deep underwater in the Mediterranean Sea. It searches for astrophysical neutrinos collecting the Cherenkov light induced by the charged particles, mainly muons, produced in neutrino interactions around the detector. Since at energies of $\sim$10 TeV the muon and the incident neutrino are almost collinear, it is possible to use the ANTARES detector as a neutrino telescope and identify a source of neutrinos in the sky starting from a precise reconstruction of the muon trajectory. To get this result, the arrival times of the Cherenkov photons must be accurately measured. A to perform time calibrations with the precision required to have optimal performances of the instrument is described. The reconstructed tracks of the atmospheric muons in the ANTARES detector are used to determine the relative time offsets between photomultipliers. Currently, this method is used to obtain the time calibration constants for photomultipliers on different lines at a precision level of 0.5 ns. It has also been validated for calibrating photomultipliers on the same line, using a system of LEDs and laser light devices. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1507.04182v1-abstract-full').style.display = 'none'; document.getElementById('1507.04182v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 15 July, 2015; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> July 2015. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">Submitted to Astroparticle Physics (17 pages, 11 figures)</span> </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1405.0839">arXiv:1405.0839</a> <span> [<a href="https://arxiv.org/pdf/1405.0839">pdf</a>, <a href="https://arxiv.org/format/1405.0839">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1140/epjc/s10052-014-3056-3">10.1140/epjc/s10052-014-3056-3 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Deep sea tests of a prototype of the KM3NeT digital optical module </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Adri%C3%A1n-Mart%C3%ADnez%2C+S">S. Adri谩n-Mart铆nez</a>, <a href="/search/physics?searchtype=author&query=Ageron%2C+M">M. Ageron</a>, <a href="/search/physics?searchtype=author&query=Aharonian%2C+F">F. Aharonian</a>, <a href="/search/physics?searchtype=author&query=Aiello%2C+S">S. Aiello</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+A">A. Albert</a>, <a href="/search/physics?searchtype=author&query=Ameli%2C+F">F. Ameli</a>, <a href="/search/physics?searchtype=author&query=Anassontzis%2C+E+G">E. G. Anassontzis</a>, <a href="/search/physics?searchtype=author&query=Anghinolfi%2C+M">M. Anghinolfi</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Anvar%2C+S">S. Anvar</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=de+Asmundis%2C+R">R. de Asmundis</a>, <a href="/search/physics?searchtype=author&query=Balasi%2C+K">K. Balasi</a>, <a href="/search/physics?searchtype=author&query=Band%2C+H">H. Band</a>, <a href="/search/physics?searchtype=author&query=Barbarino%2C+G">G. Barbarino</a>, <a href="/search/physics?searchtype=author&query=Barbarito%2C+E">E. Barbarito</a>, <a href="/search/physics?searchtype=author&query=Barbato%2C+F">F. Barbato</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Baron%2C+S">S. Baron</a>, <a href="/search/physics?searchtype=author&query=Belias%2C+A">A. Belias</a>, <a href="/search/physics?searchtype=author&query=Berbee%2C+E">E. Berbee</a>, <a href="/search/physics?searchtype=author&query=Berg%2C+A+M+v+d">A. M. van den Berg</a>, <a href="/search/physics?searchtype=author&query=Berkien%2C+A">A. Berkien</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">V. Bertin</a>, <a href="/search/physics?searchtype=author&query=Beurthey%2C+S">S. Beurthey</a> , et al. (225 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1405.0839v2-abstract-short" style="display: inline;"> The first prototype of a photo-detection unit of the future KM3NeT neutrino telescope has been deployed in the deep waters of the Mediterranean Sea. This digital optical module has a novel design with a very large photocathode area segmented by the use of 31 three inch photomultiplier tubes. It has been integrated in the ANTARES detector for in-situ testing and validation. This paper reports on th… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.0839v2-abstract-full').style.display = 'inline'; document.getElementById('1405.0839v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1405.0839v2-abstract-full" style="display: none;"> The first prototype of a photo-detection unit of the future KM3NeT neutrino telescope has been deployed in the deep waters of the Mediterranean Sea. This digital optical module has a novel design with a very large photocathode area segmented by the use of 31 three inch photomultiplier tubes. It has been integrated in the ANTARES detector for in-situ testing and validation. This paper reports on the first months of data taking and rate measurements. The analysis results highlight the capabilities of the new module design in terms of background suppression and signal recognition. The directionality of the optical module enables the recognition of multiple Cherenkov photons from the same $^{40}$K decay and the localization bioluminescent activity in the neighbourhood. The single unit can cleanly identify atmospheric muons and provide sensitivity to the muon arrival directions. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1405.0839v2-abstract-full').style.display = 'none'; document.getElementById('1405.0839v2-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 16 May, 2014; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 5 May, 2014; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2014. </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1111.6482">arXiv:1111.6482</a> <span> [<a href="https://arxiv.org/pdf/1111.6482">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Geophysics">physics.geo-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.dsr.2011.06.006">10.1016/j.dsr.2011.06.006 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Acoustic and optical variations during rapid downward motion episodes in the deep north-western Mediterranean Sea </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=van+Haren%2C+H">H. van Haren</a>, <a href="/search/physics?searchtype=author&query=Taupier-Letage%2C+I">I. Taupier-Letage</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J+A">J. A. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+A">A. Albert</a>, <a href="/search/physics?searchtype=author&query=Anghinolfi%2C+M">M. Anghinolfi</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Anvar%2C+S">S. Anvar</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Jesus%2C+A+C+A">A. C. Assis Jesus</a>, <a href="/search/physics?searchtype=author&query=Astraatmadja%2C+T">T. Astraatmadja</a>, <a href="/search/physics?searchtype=author&query=Aubert%2C+J+-">J. -J. Aubert</a>, <a href="/search/physics?searchtype=author&query=Auer%2C+R">R. Auer</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Basa%2C+S">S. Basa</a>, <a href="/search/physics?searchtype=author&query=Bazzotti%2C+M">M. Bazzotti</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">V. Bertin</a>, <a href="/search/physics?searchtype=author&query=Biagi%2C+S">S. Biagi</a>, <a href="/search/physics?searchtype=author&query=Bigongiari%2C+C">C. Bigongiari</a>, <a href="/search/physics?searchtype=author&query=Bou-Cabof%2C+M">M. Bou-Cabof</a>, <a href="/search/physics?searchtype=author&query=Bouwhuis%2C+M+C">M. C. Bouwhuis</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+A">A. Brown</a>, <a href="/search/physics?searchtype=author&query=Brunner%2C+J">J. Brunner</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Camarena%2C+F">F. Camarena</a>, <a href="/search/physics?searchtype=author&query=Capone%2C+A">A. Capone</a> , et al. (116 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1111.6482v1-abstract-short" style="display: inline;"> An Acoustic Doppler Current Profiler (ADCP) was moored at the deep-sea site of the ANTARES neutrino telescope near Toulon, France, thus providing a unique opportunity to compare high-resolution acoustic and optical observations between 70 and 170 m above the sea bed at 2475 m. The ADCP measured downward vertical currents of magnitudes up to 0.03 m s-1 in late winter and early spring 2006. In the s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1111.6482v1-abstract-full').style.display = 'inline'; document.getElementById('1111.6482v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1111.6482v1-abstract-full" style="display: none;"> An Acoustic Doppler Current Profiler (ADCP) was moored at the deep-sea site of the ANTARES neutrino telescope near Toulon, France, thus providing a unique opportunity to compare high-resolution acoustic and optical observations between 70 and 170 m above the sea bed at 2475 m. The ADCP measured downward vertical currents of magnitudes up to 0.03 m s-1 in late winter and early spring 2006. In the same period, observations were made of enhanced levels of acoustic reflection, interpreted as suspended particles including zooplankton, by a factor of about 10 and of horizontal currents reaching 0.35 m s-1. These observations coincided with high light levels detected by the telescope, interpreted as increased bioluminescence. During winter 2006 deep dense-water formation occurred in the Ligurian subbasin, thus providing a possible explanation for these observations. However, the 10-20 days quasi-periodic episodes of high levels of acoustic reflection, light and large vertical currents continuing into the summer are not direct evidence of this process. It is hypothesized that the main process allowing for suspended material to be moved vertically later in the year is local advection, linked with topographic boundary current instabilities along the rim of the 'Northern Current'. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1111.6482v1-abstract-full').style.display = 'none'; document.getElementById('1111.6482v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 28 November, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> November 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">30 pages, 7 figures</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">MSC Class:</span> 86-02 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Deep-Sea Research I, 58 (2011), 875-884 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1105.4116">arXiv:1105.4116</a> <span> [<a href="https://arxiv.org/pdf/1105.4116">pdf</a>, <a href="https://arxiv.org/ps/1105.4116">ps</a>, <a href="https://arxiv.org/format/1105.4116">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Astrophysical Phenomena">astro-ph.HE</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Data Analysis, Statistics and Probability">physics.data-an</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.astropartphys.2011.01.003">10.1016/j.astropartphys.2011.01.003 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> A Fast Algorithm for Muon Track Reconstruction and its Application to the ANTARES Neutrino Telescope </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=ANTARES+collaboration"> ANTARES collaboration</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J+A">J. A. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Samarai%2C+I+A">I. Al Samarai</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+A">A. Albert</a>, <a href="/search/physics?searchtype=author&query=Andre%2C+M">M. Andre</a>, <a href="/search/physics?searchtype=author&query=Anghinolfi%2C+M">M. Anghinolfi</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Anvar%2C+S">S. Anvar</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Jesus%2C+A+C+A">A. C. Assis Jesus</a>, <a href="/search/physics?searchtype=author&query=Astraatmadja%2C+T">T. Astraatmadja</a>, <a href="/search/physics?searchtype=author&query=Aubert%2C+J">J-J. Aubert</a>, <a href="/search/physics?searchtype=author&query=Auer%2C+R">R. Auer</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Basa%2C+S">S. Basa</a>, <a href="/search/physics?searchtype=author&query=Bazzotti%2C+M">M. Bazzotti</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">V. Bertin</a>, <a href="/search/physics?searchtype=author&query=Biagi%2C+S">S. Biagi</a>, <a href="/search/physics?searchtype=author&query=Bigongiari%2C+C">C. Bigongiari</a>, <a href="/search/physics?searchtype=author&query=Bogazzi%2C+C">C. Bogazzi</a>, <a href="/search/physics?searchtype=author&query=Bou-Cabo%2C+M">M. Bou-Cabo</a>, <a href="/search/physics?searchtype=author&query=Bouwhuis%2C+M+C">M. C. Bouwhuis</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+A+M">A. M. Brown</a>, <a href="/search/physics?searchtype=author&query=Brunner%2C+J">J. Brunner</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a> , et al. (118 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1105.4116v1-abstract-short" style="display: inline;"> An algorithm is presented, that provides a fast and robust reconstruction of neutrino induced upward-going muons and a discrimination of these events from downward-going atmospheric muon background in data collected by the ANTARES neutrino telescope. The algorithm consists of a hit merging and hit selection procedure followed by fitting steps for a track hypothesis and a point-like light source. I… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1105.4116v1-abstract-full').style.display = 'inline'; document.getElementById('1105.4116v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1105.4116v1-abstract-full" style="display: none;"> An algorithm is presented, that provides a fast and robust reconstruction of neutrino induced upward-going muons and a discrimination of these events from downward-going atmospheric muon background in data collected by the ANTARES neutrino telescope. The algorithm consists of a hit merging and hit selection procedure followed by fitting steps for a track hypothesis and a point-like light source. It is particularly well-suited for real time applications such as online monitoring and fast triggering of optical follow-up observations for multi-messenger studies. The performance of the algorithm is evaluated with Monte Carlo simulations and various distributions are compared with that obtained in ANTARES data. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1105.4116v1-abstract-full').style.display = 'none'; document.getElementById('1105.4116v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 20 May, 2011; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2011. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Astropart.Phys.34:652-662,2011 </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1012.2204">arXiv:1012.2204</a> <span> [<a href="https://arxiv.org/pdf/1012.2204">pdf</a>, <a href="https://arxiv.org/ps/1012.2204">ps</a>, <a href="https://arxiv.org/format/1012.2204">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Instrumentation and Methods for Astrophysics">astro-ph.IM</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="High Energy Physics - Experiment">hep-ex</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Instrumentation and Detectors">physics.ins-det</span> </div> <div class="is-inline-block" style="margin-left: 0.5rem"> <div class="tags has-addons"> <span class="tag is-dark is-size-7">doi</span> <span class="tag is-light is-size-7"><a class="" href="https://doi.org/10.1016/j.astropartphys.2010.12.004">10.1016/j.astropartphys.2010.12.004 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Time Calibration of the ANTARES Neutrino Telescope </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=The+ANTARES+Collaboration"> The ANTARES Collaboration</a>, <a href="/search/physics?searchtype=author&query=Aguilar%2C+J+A">J. A. Aguilar</a>, <a href="/search/physics?searchtype=author&query=Samarai%2C+I+A">I. Al Samarai</a>, <a href="/search/physics?searchtype=author&query=Albert%2C+A">A. Albert</a>, <a href="/search/physics?searchtype=author&query=Andr%C3%A9%2C+M">M. Andr茅</a>, <a href="/search/physics?searchtype=author&query=Anghinolfi%2C+M">M. Anghinolfi</a>, <a href="/search/physics?searchtype=author&query=Anton%2C+G">G. Anton</a>, <a href="/search/physics?searchtype=author&query=Anvar%2C+S">S. Anvar</a>, <a href="/search/physics?searchtype=author&query=Ardid%2C+M">M. Ardid</a>, <a href="/search/physics?searchtype=author&query=Jesus%2C+A+C+A">A. C. Assis Jesus</a>, <a href="/search/physics?searchtype=author&query=Astraatmadja%2C+T">T. Astraatmadja</a>, <a href="/search/physics?searchtype=author&query=Aubert%2C+J+J">J. J. Aubert</a>, <a href="/search/physics?searchtype=author&query=Auer%2C+R">R. Auer</a>, <a href="/search/physics?searchtype=author&query=Baret%2C+B">B. Baret</a>, <a href="/search/physics?searchtype=author&query=Basa%2C+S">S. Basa</a>, <a href="/search/physics?searchtype=author&query=Bazzotti%2C+M">M. Bazzotti</a>, <a href="/search/physics?searchtype=author&query=Bertin%2C+V">V. Bertin</a>, <a href="/search/physics?searchtype=author&query=Biagi%2C+S">S. Biagi</a>, <a href="/search/physics?searchtype=author&query=Bigongiari%2C+C">C. Bigongiari</a>, <a href="/search/physics?searchtype=author&query=Bou-Cabo%2C+M">M. Bou-Cabo</a>, <a href="/search/physics?searchtype=author&query=Bouwhuis%2C+M+C">M. C. Bouwhuis</a>, <a href="/search/physics?searchtype=author&query=Brown%2C+A+M">A. M. Brown</a>, <a href="/search/physics?searchtype=author&query=Brunner%2C+J">J. Brunner</a>, <a href="/search/physics?searchtype=author&query=Busto%2C+J">J. Busto</a>, <a href="/search/physics?searchtype=author&query=Camarena%2C+F">F. Camarena</a> , et al. (113 additional authors not shown) </p> <p class="abstract mathjax"> <span class="has-text-black-bis has-text-weight-semibold">Abstract</span>: <span class="abstract-short has-text-grey-dark mathjax" id="1012.2204v1-abstract-short" style="display: inline;"> The ANTARES deep-sea neutrino telescope comprises a three-dimensional array of photomultipliers to detect the Cherenkov light induced by upgoing relativistic charged particles originating from neutrino interactions in the vicinity of the detector. The large scattering length of light in the deep sea facilitates an angular resolution of a few tenths of a degree for neutrino energies exceeding 10 Te… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.2204v1-abstract-full').style.display = 'inline'; document.getElementById('1012.2204v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1012.2204v1-abstract-full" style="display: none;"> The ANTARES deep-sea neutrino telescope comprises a three-dimensional array of photomultipliers to detect the Cherenkov light induced by upgoing relativistic charged particles originating from neutrino interactions in the vicinity of the detector. The large scattering length of light in the deep sea facilitates an angular resolution of a few tenths of a degree for neutrino energies exceeding 10 TeV. In order to achieve this optimal performance, the time calibration procedures should ensure a relative time calibration between the photomultipliers at the level of about 1ns. The methods developed to attain this level of precision are described. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1012.2204v1-abstract-full').style.display = 'none'; document.getElementById('1012.2204v1-abstract-short').style.display = 'inline';">△ Less</a> </span> </p> <p class="is-size-7"><span class="has-text-black-bis has-text-weight-semibold">Submitted</span> 10 December, 2010; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> December 2010. </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Comments:</span> <span class="has-text-grey-dark mathjax">23 pages, 20 figures, accepted by Astropart. Phys</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Astropart.Phys.34:539-549,2011 </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: inline-block;"><a href="https://github.com/arXiv/arxiv-search/releases">Search v0.5.6 released 2020-02-24</a>  </span> </div> </div> </main> <footer> <div class="columns is-desktop" role="navigation" aria-label="Secondary">  <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/about">About</a></li> <li><a href="https://info.arxiv.org/help">Help</a></li> </ul> </div> <div class="column"> <ul class="nav-spaced"> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>contact arXiv</title><desc>Click here to contact arXiv</desc><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg> <a href="https://info.arxiv.org/help/contact.html"> Contact</a> </li> <li> <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><title>subscribe to arXiv mailings</title><desc>Click here to subscribe</desc><path d="M476 3.2L12.5 270.6c-18.1 10.4-15.8 35.6 2.2 43.2L121 358.4l287.3-253.2c5.5-4.9 13.3 2.6 8.6 8.3L176 407v80.5c0 23.6 28.5 32.9 42.5 15.8L282 426l124.6 52.2c14.2 6 30.4-2.9 33-18.2l72-432C515 7.8 493.3-6.8 476 3.2z"/></svg> <a href="https://info.arxiv.org/help/subscribe"> Subscribe</a> </li> </ul> </div> </div> </div>   <div class="column"> <div class="columns"> <div class="column"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/license/index.html">Copyright</a></li> <li><a href="https://info.arxiv.org/help/policies/privacy_policy.html">Privacy Policy</a></li> </ul> </div> <div class="column sorry-app-links"> <ul class="nav-spaced"> <li><a href="https://info.arxiv.org/help/web_accessibility.html">Web Accessibility Assistance</a></li> <li> <p class="help"> <a class="a11y-main-link" href="https://status.arxiv.org" target="_blank">arXiv Operational Status <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 512" class="icon filter-dark_grey" role="presentation"><path d="M224.3 273l-136 136c-9.4 9.4-24.6 9.4-33.9 0l-22.6-22.6c-9.4-9.4-9.4-24.6 0-33.9l96.4-96.4-96.4-96.4c-9.4-9.4-9.4-24.6 0-33.9L54.3 103c9.4-9.4 24.6-9.4 33.9 0l136 136c9.5 9.4 9.5 24.6.1 34z"/></svg></a><br> Get status notifications via <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/email/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512" class="icon filter-black" role="presentation"><path d="M502.3 190.8c3.9-3.1 9.7-.2 9.7 4.7V400c0 26.5-21.5 48-48 48H48c-26.5 0-48-21.5-48-48V195.6c0-5 5.7-7.8 9.7-4.7 22.4 17.4 52.1 39.5 154.1 113.6 21.1 15.4 56.7 47.8 92.2 47.6 35.7.3 72-32.8 92.3-47.6 102-74.1 131.6-96.3 154-113.7zM256 320c23.2.4 56.6-29.2 73.4-41.4 132.7-96.3 142.8-104.7 173.4-128.7 5.8-4.5 9.2-11.5 9.2-18.9v-19c0-26.5-21.5-48-48-48H48C21.5 64 0 85.5 0 112v19c0 7.4 3.4 14.3 9.2 18.9 30.6 23.9 40.7 32.4 173.4 128.7 16.8 12.2 50.2 41.8 73.4 41.4z"/></svg>email</a> or <a class="is-link" href="https://subscribe.sorryapp.com/24846f03/slack/new" target="_blank"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512" class="icon filter-black" role="presentation"><path d="M94.12 315.1c0 25.9-21.16 47.06-47.06 47.06S0 341 0 315.1c0-25.9 21.16-47.06 47.06-47.06h47.06v47.06zm23.72 0c0-25.9 21.16-47.06 47.06-47.06s47.06 21.16 47.06 47.06v117.84c0 25.9-21.16 47.06-47.06 47.06s-47.06-21.16-47.06-47.06V315.1zm47.06-188.98c-25.9 0-47.06-21.16-47.06-47.06S139 32 164.9 32s47.06 21.16 47.06 47.06v47.06H164.9zm0 23.72c25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06H47.06C21.16 243.96 0 222.8 0 196.9s21.16-47.06 47.06-47.06H164.9zm188.98 47.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06s-21.16 47.06-47.06 47.06h-47.06V196.9zm-23.72 0c0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06V79.06c0-25.9 21.16-47.06 47.06-47.06 25.9 0 47.06 21.16 47.06 47.06V196.9zM283.1 385.88c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06-25.9 0-47.06-21.16-47.06-47.06v-47.06h47.06zm0-23.72c-25.9 0-47.06-21.16-47.06-47.06 0-25.9 21.16-47.06 47.06-47.06h117.84c25.9 0 47.06 21.16 47.06 47.06 0 25.9-21.16 47.06-47.06 47.06H283.1z"/></svg>slack</a> </p> </li> </ul> </div> </div> </div>  </div> </footer> <script src="https://static.arxiv.org/static/base/1.0.0a5/js/member_acknowledgement.js"></script> </body> </html>

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