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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/2407.02420">arXiv:2407.02420</a> <span> [<a href="https://arxiv.org/pdf/2407.02420">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Earth and Planetary Astrophysics">astro-ph.EP</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="Geophysics">physics.geo-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/10.3847/PSJ/ad5b5e">10.3847/PSJ/ad5b5e <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Geophysical Observations of the 24 September 2023 OSIRIS-REx Sample Return Capsule Re-Entry </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Silber%2C+E+A">Elizabeth A. Silber</a>, <a href="/search/physics?searchtype=author&query=Bowman%2C+D+C">Daniel C. Bowman</a>, <a href="/search/physics?searchtype=author&query=Carr%2C+C+G">Chris G. Carr</a>, <a href="/search/physics?searchtype=author&query=Eisenberg%2C+D+P">David P. Eisenberg</a>, <a href="/search/physics?searchtype=author&query=Elbing%2C+B+R">Brian R. Elbing</a>, <a href="/search/physics?searchtype=author&query=Fernando%2C+B">Benjamin Fernando</a>, <a href="/search/physics?searchtype=author&query=Garc%C3%A9s%2C+M+A">Milton A. Garc茅s</a>, <a href="/search/physics?searchtype=author&query=Haaser%2C+R">Robert Haaser</a>, <a href="/search/physics?searchtype=author&query=Krishnamoorthy%2C+S">Siddharth Krishnamoorthy</a>, <a href="/search/physics?searchtype=author&query=Langston%2C+C+A">Charles A. Langston</a>, <a href="/search/physics?searchtype=author&query=Nishikawa%2C+Y">Yasuhiro Nishikawa</a>, <a href="/search/physics?searchtype=author&query=Webster%2C+J">Jeremy Webster</a>, <a href="/search/physics?searchtype=author&query=Anderson%2C+J+F">Jacob F. Anderson</a>, <a href="/search/physics?searchtype=author&query=Arrowsmith%2C+S">Stephen Arrowsmith</a>, <a href="/search/physics?searchtype=author&query=Bazargan%2C+S">Sonia Bazargan</a>, <a href="/search/physics?searchtype=author&query=Beardslee%2C+L">Luke Beardslee</a>, <a href="/search/physics?searchtype=author&query=Beck%2C+B">Brant Beck</a>, <a href="/search/physics?searchtype=author&query=Bishop%2C+J+W">Jordan W. Bishop</a>, <a href="/search/physics?searchtype=author&query=Blom%2C+P">Philip Blom</a>, <a href="/search/physics?searchtype=author&query=Bracht%2C+G">Grant Bracht</a>, <a href="/search/physics?searchtype=author&query=Chichester%2C+D+L">David L. Chichester</a>, <a href="/search/physics?searchtype=author&query=Christe%2C+A">Anthony Christe</a>, <a href="/search/physics?searchtype=author&query=Clarke%2C+J">Jacob Clarke</a>, <a href="/search/physics?searchtype=author&query=Cummins%2C+K">Kenneth Cummins</a>, <a href="/search/physics?searchtype=author&query=Cutts%2C+J">James Cutts</a> , et al. (57 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="2407.02420v2-abstract-short" style="display: inline;"> Sample Return Capsules (SRCs) entering Earth's atmosphere at hypervelocity from interplanetary space are a valuable resource for studying meteor phenomena. The 24 September 2023 arrival of the OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer) SRC provided an unprecedented chance for geophysical observations of a well-characterized source with kn… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.02420v2-abstract-full').style.display = 'inline'; document.getElementById('2407.02420v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2407.02420v2-abstract-full" style="display: none;"> Sample Return Capsules (SRCs) entering Earth's atmosphere at hypervelocity from interplanetary space are a valuable resource for studying meteor phenomena. The 24 September 2023 arrival of the OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer) SRC provided an unprecedented chance for geophysical observations of a well-characterized source with known parameters, including timing and trajectory. A collaborative effort involving researchers from 16 institutions executed a carefully planned geophysical observational campaign at strategically chosen locations, deploying over 400 ground-based sensors encompassing infrasound, seismic, distributed acoustic sensing (DAS), and GPS technologies. Additionally, balloons equipped with infrasound sensors were launched to capture signals at higher altitudes. This campaign (the largest of its kind so far) yielded a wealth of invaluable data anticipated to fuel scientific inquiry for years to come. The success of the observational campaign is evidenced by the near-universal detection of signals across instruments, both proximal and distal. This paper presents a comprehensive overview of the collective scientific effort, field deployment, and preliminary findings. The early findings have the potential to inform future space missions and terrestrial campaigns, contributing to our understanding of meteoroid interactions with planetary atmospheres. Furthermore, the dataset collected during this campaign will improve entry and propagation models as well as augment the study of atmospheric dynamics and shock phenomena generated by meteoroids and similar sources. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2407.02420v2-abstract-full').style.display = 'none'; document.getElementById('2407.02420v2-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 September, 2024; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 2 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">87 pages, 14 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/2105.12718">arXiv:2105.12718</a> <span> [<a href="https://arxiv.org/pdf/2105.12718">pdf</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Applied Physics">physics.app-ph</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Systems and Control">eess.SY</span> </div> </div> <p class="title is-5 mathjax"> Magnetic Particle Spectroscopy (MPS) with One-stage Lock-in Implementation for Magnetic Bioassays with Improved Sensitivities </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Chugh%2C+V+K">Vinit Kumar Chugh</a>, <a href="/search/physics?searchtype=author&query=Wu%2C+K">Kai Wu</a>, <a href="/search/physics?searchtype=author&query=Krishna%2C+V+D">Venkatramana D. Krishna</a>, <a href="/search/physics?searchtype=author&query=di+Girolamo%2C+A">Arturo di Girolamo</a>, <a href="/search/physics?searchtype=author&query=Bloom%2C+R+P">Robert P. Bloom</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+Y+A">Yongqiang Andrew Wang</a>, <a href="/search/physics?searchtype=author&query=Saha%2C+R">Renata Saha</a>, <a href="/search/physics?searchtype=author&query=Liang%2C+S">Shuang Liang</a>, <a href="/search/physics?searchtype=author&query=Cheeran%2C+M+C">Maxim C-J Cheeran</a>, <a href="/search/physics?searchtype=author&query=Wang%2C+J">Jian-Ping Wang</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="2105.12718v1-abstract-short" style="display: inline;"> In recent years, magnetic particle spectroscopy (MPS) has become a highly sensitive and versatile sensing technique for quantitative bioassays. It relies on the dynamic magnetic responses of magnetic nanoparticles (MNPs) for the detection of target analytes in liquid phase. There are many research studies reporting the application of MPS for detecting a variety of analytes including viruses, toxin… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.12718v1-abstract-full').style.display = 'inline'; document.getElementById('2105.12718v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2105.12718v1-abstract-full" style="display: none;"> In recent years, magnetic particle spectroscopy (MPS) has become a highly sensitive and versatile sensing technique for quantitative bioassays. It relies on the dynamic magnetic responses of magnetic nanoparticles (MNPs) for the detection of target analytes in liquid phase. There are many research studies reporting the application of MPS for detecting a variety of analytes including viruses, toxins, and nucleic acids, etc. Herein, we report a modified version of MPS platform with the addition of a one-stage lock-in design to remove the feedthrough signals induced by external driving magnetic fields, thus capturing only MNP responses for improved system sensitivity. This one-stage lock-in MPS system is able to detect as low as 781 ng multi-core Nanomag50 iron oxide MNPs (micromod Partikeltechnologie GmbH) and 78 ng single-core SHB30 iron oxide MNPs (Ocean NanoTech). In addition, using a streptavidin-biotin binding system as a proof-of-concept, we show that these single-core SHB30 MNPs can be used for Brownian relaxation-based bioassays while the multi-core Nanomag50 cannot be used. The effects of MNP amount on the concentration dependent response profiles for detecting streptavidin was also investigated. Results show that by using lower concentration/amount of MNPs, concentration-response curves shift to lower concentration/amount of target analytes. This lower concentrationresponse indicates the possibility of improved bioassay sensitivities by using lower amounts of MNPs. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2105.12718v1-abstract-full').style.display = 'none'; document.getElementById('2105.12718v1-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 May, 2021; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> May 2021. </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">26 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/2104.03240">arXiv:2104.03240</a> <span> [<a href="https://arxiv.org/pdf/2104.03240">pdf</a>, <a href="https://arxiv.org/format/2104.03240">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Accelerator Physics">physics.acc-ph</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/10.1103/PhysRevAccelBeams.24.044002">10.1103/PhysRevAccelBeams.24.044002 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Beam dynamics corrections to the Run-1 measurement of the muon anomalous magnetic moment at Fermilab </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Albahri%2C+T">T. Albahri</a>, <a href="/search/physics?searchtype=author&query=Anastasi%2C+A">A. Anastasi</a>, <a href="/search/physics?searchtype=author&query=Badgley%2C+K">K. Badgley</a>, <a href="/search/physics?searchtype=author&query=Bae%C3%9Fler%2C+S">S. Bae脽ler</a>, <a href="/search/physics?searchtype=author&query=Bailey%2C+I">I. Bailey</a>, <a href="/search/physics?searchtype=author&query=Baranov%2C+V+A">V. A. Baranov</a>, <a href="/search/physics?searchtype=author&query=Barlas-Yucel%2C+E">E. Barlas-Yucel</a>, <a href="/search/physics?searchtype=author&query=Barrett%2C+T">T. Barrett</a>, <a href="/search/physics?searchtype=author&query=Bedeschi%2C+F">F. Bedeschi</a>, <a href="/search/physics?searchtype=author&query=Berz%2C+M">M. Berz</a>, <a href="/search/physics?searchtype=author&query=Bhattacharya%2C+M">M. Bhattacharya</a>, <a href="/search/physics?searchtype=author&query=Binney%2C+H+P">H. P. Binney</a>, <a href="/search/physics?searchtype=author&query=Bloom%2C+P">P. Bloom</a>, <a href="/search/physics?searchtype=author&query=Bono%2C+J">J. Bono</a>, <a href="/search/physics?searchtype=author&query=Bottalico%2C+E">E. Bottalico</a>, <a href="/search/physics?searchtype=author&query=Bowcock%2C+T">T. Bowcock</a>, <a href="/search/physics?searchtype=author&query=Cantatore%2C+G">G. Cantatore</a>, <a href="/search/physics?searchtype=author&query=Carey%2C+R+M">R. M. Carey</a>, <a href="/search/physics?searchtype=author&query=Casey%2C+B+C+K">B. C. K. Casey</a>, <a href="/search/physics?searchtype=author&query=Cauz%2C+D">D. Cauz</a>, <a href="/search/physics?searchtype=author&query=Chakraborty%2C+R">R. Chakraborty</a>, <a href="/search/physics?searchtype=author&query=Chang%2C+S+P">S. P. Chang</a>, <a href="/search/physics?searchtype=author&query=Chapelain%2C+A">A. Chapelain</a>, <a href="/search/physics?searchtype=author&query=Charity%2C+S">S. Charity</a>, <a href="/search/physics?searchtype=author&query=Chislett%2C+R">R. Chislett</a> , et al. (152 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="2104.03240v2-abstract-short" style="display: inline;"> This paper presents the beam dynamics systematic corrections and their uncertainties for the Run-1 data set of the Fermilab Muon g-2 Experiment. Two corrections to the measured muon precession frequency $蠅_a^m$ are associated with well-known effects owing to the use of electrostatic quadrupole (ESQ) vertical focusing in the storage ring. An average vertically oriented motional magnetic field is fe… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.03240v2-abstract-full').style.display = 'inline'; document.getElementById('2104.03240v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2104.03240v2-abstract-full" style="display: none;"> This paper presents the beam dynamics systematic corrections and their uncertainties for the Run-1 data set of the Fermilab Muon g-2 Experiment. Two corrections to the measured muon precession frequency $蠅_a^m$ are associated with well-known effects owing to the use of electrostatic quadrupole (ESQ) vertical focusing in the storage ring. An average vertically oriented motional magnetic field is felt by relativistic muons passing transversely through the radial electric field components created by the ESQ system. The correction depends on the stored momentum distribution and the tunes of the ring, which has relatively weak vertical focusing. Vertical betatron motions imply that the muons do not orbit the ring in a plane exactly orthogonal to the vertical magnetic field direction. A correction is necessary to account for an average pitch angle associated with their trajectories. A third small correction is necessary because muons that escape the ring during the storage time are slightly biased in initial spin phase compared to the parent distribution. Finally, because two high-voltage resistors in the ESQ network had longer than designed RC time constants, the vertical and horizontal centroids and envelopes of the stored muon beam drifted slightly, but coherently, during each storage ring fill. This led to the discovery of an important phase-acceptance relationship that requires a correction. The sum of the corrections to $蠅_a^m$ is 0.50 $\pm$ 0.09 ppm; the uncertainty is small compared to the 0.43 ppm statistical precision of $蠅_a^m$. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2104.03240v2-abstract-full').style.display = 'none'; document.getElementById('2104.03240v2-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 April, 2021; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 7 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">Comments:</span> <span class="has-text-grey-dark mathjax">35 pages, 29 figures. Accepted by Phys. Rev. Accel. Beams</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> FERMILAB-PUB-21-133-E </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> Phys. Rev. Accel. Beams 24, 044002 (2021) </p> </li> <li class="arxiv-result"> <div class="is-marginless"> <p class="list-title is-inline-block"><a href="https://arxiv.org/abs/1908.11854">arXiv:1908.11854</a> <span> [<a href="https://arxiv.org/pdf/1908.11854">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="Chemical Physics">physics.chem-ph</span> </div> </div> <p class="title is-5 mathjax"> The influence of impurities on the charge carrier mobility of small molecule organic semiconductors </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Friederich%2C+P">Pascal Friederich</a>, <a href="/search/physics?searchtype=author&query=Fediai%2C+A">Artem Fediai</a>, <a href="/search/physics?searchtype=author&query=Li%2C+J">Jing Li</a>, <a href="/search/physics?searchtype=author&query=Mondal%2C+A">Anirban Mondal</a>, <a href="/search/physics?searchtype=author&query=Kotadiya%2C+N+B">Naresh B. Kotadiya</a>, <a href="/search/physics?searchtype=author&query=Symalla%2C+F">Franz Symalla</a>, <a href="/search/physics?searchtype=author&query=Wetzelaer%2C+G+A+H">Gert-Jan A. H. Wetzelaer</a>, <a href="/search/physics?searchtype=author&query=Andrienko%2C+D">Denis Andrienko</a>, <a href="/search/physics?searchtype=author&query=Blase%2C+X">Xavier Blase</a>, <a href="/search/physics?searchtype=author&query=Beljonne%2C+D">David Beljonne</a>, <a href="/search/physics?searchtype=author&query=Blom%2C+P+W+M">Paul W. M. Blom</a>, <a href="/search/physics?searchtype=author&query=Br%C3%A9das%2C+J">Jean-Luc Br茅das</a>, <a href="/search/physics?searchtype=author&query=Wenzel%2C+W">Wolfgang Wenzel</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="1908.11854v2-abstract-short" style="display: inline;"> Amorphous organic semiconductors based on small molecules and polymers are used in many applications, most prominently organic light emitting diodes (OLEDs) and organic solar cells. Impurities and charge traps are omnipresent in most currently available organic semiconductors and limit charge transport and thus device efficiency. The microscopic cause as well as the chemical nature of these traps… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1908.11854v2-abstract-full').style.display = 'inline'; document.getElementById('1908.11854v2-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1908.11854v2-abstract-full" style="display: none;"> Amorphous organic semiconductors based on small molecules and polymers are used in many applications, most prominently organic light emitting diodes (OLEDs) and organic solar cells. Impurities and charge traps are omnipresent in most currently available organic semiconductors and limit charge transport and thus device efficiency. The microscopic cause as well as the chemical nature of these traps are presently not well understood. Using a multiscale model we characterize the influence of impurities on the density of states and charge transport in small-molecule amorphous organic semiconductors. We use the model to quantitatively describe the influence of water molecules and water-oxygen complexes on the electron and hole mobilities. These species are seen to impact the shape of the density of states and to act as explicit charge traps within the energy gap. Our results show that trap states introduced by molecular oxygen can be deep enough to limit the electron mobility in widely used materials. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1908.11854v2-abstract-full').style.display = 'none'; document.getElementById('1908.11854v2-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> 8 November, 2020; <span class="has-text-black-bis has-text-weight-semibold">v1</span> submitted 30 August, 2019; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> August 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">13 pages + SI, 7 figures + TOC-graphic + 2 figures in SI</span> </p> </li> </ol> <div class="is-hidden-tablet">  <span class="help" style="display: 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