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</div> <div class="control"> <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/2309.17284">arXiv:2309.17284</a> <span> [<a href="https://arxiv.org/pdf/2309.17284">pdf</a>, <a href="https://arxiv.org/format/2309.17284">other</a>] </span> </p> <div class="tags is-inline-block"> <span class="tag is-small is-link tooltip is-tooltip-top" data-tooltip="Social and Information Networks">cs.SI</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Cryptography and Security">cs.CR</span> <span class="tag is-small is-grey tooltip is-tooltip-top" data-tooltip="Physics and Society">physics.soc-ph</span> </div> </div> <p class="title is-5 mathjax"> Differentially Private Computation of Basic Reproduction Numbers in Networked Epidemic Models </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Chen%2C+B">Bo Chen</a>, <a href="/search/physics?searchtype=author&query=She%2C+B">Baike She</a>, <a href="/search/physics?searchtype=author&query=Hawkins%2C+C">Calvin Hawkins</a>, <a href="/search/physics?searchtype=author&query=Benvenuti%2C+A">Alex Benvenuti</a>, <a href="/search/physics?searchtype=author&query=Fallin%2C+B">Brandon Fallin</a>, <a href="/search/physics?searchtype=author&query=Par%C3%A9%2C+P+E">Philip E. Par茅</a>, <a href="/search/physics?searchtype=author&query=Hale%2C+M">Matthew Hale</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="2309.17284v1-abstract-short" style="display: inline;"> The basic reproduction number of a networked epidemic model, denoted $R_0$, can be computed from a network's topology to quantify epidemic spread. However, disclosure of $R_0$ risks revealing sensitive information about the underlying network, such as an individual's relationships within a social network. Therefore, we propose a framework to compute and release $R_0$ in a differentially private wa… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.17284v1-abstract-full').style.display = 'inline'; document.getElementById('2309.17284v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2309.17284v1-abstract-full" style="display: none;"> The basic reproduction number of a networked epidemic model, denoted $R_0$, can be computed from a network's topology to quantify epidemic spread. However, disclosure of $R_0$ risks revealing sensitive information about the underlying network, such as an individual's relationships within a social network. Therefore, we propose a framework to compute and release $R_0$ in a differentially private way. First, we provide a new result that shows how $R_0$ can be used to bound the level of penetration of an epidemic within a single community as a motivation for the need of privacy, which may also be of independent interest. We next develop a privacy mechanism to formally safeguard the edge weights in the underlying network when computing $R_0$. Then we formalize tradeoffs between the level of privacy and the accuracy of values of the privatized $R_0$. To show the utility of the private $R_0$ in practice, we use it to bound this level of penetration under privacy, and concentration bounds on these analyses show they remain accurate with privacy implemented. We apply our results to real travel data gathered during the spread of COVID-19, and we show that, under real-world conditions, we can compute $R_0$ in a differentially private way while incurring errors as low as $7.6\%$ on average. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2309.17284v1-abstract-full').style.display = 'none'; document.getElementById('2309.17284v1-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 September, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> September 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">8 pages, 3 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/2302.01666">arXiv:2302.01666</a> <span> [<a href="https://arxiv.org/pdf/2302.01666">pdf</a>, <a href="https://arxiv.org/format/2302.01666">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 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.nima.2023.168103">10.1016/j.nima.2023.168103 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> The Analytical Method algorithm for trigger primitives generation at the LHC Drift Tubes detector </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abbiendi%2C+G">G. Abbiendi</a>, <a href="/search/physics?searchtype=author&query=Maestre%2C+J+A">J. Alcaraz Maestre</a>, <a href="/search/physics?searchtype=author&query=Fern%C3%A1ndez%2C+A+%C3%81">A. 脕lvarez Fern谩ndez</a>, <a href="/search/physics?searchtype=author&query=Gonz%C3%A1lez%2C+B+%C3%81">B. 脕lvarez Gonz谩lez</a>, <a href="/search/physics?searchtype=author&query=Amapane%2C+N">N. Amapane</a>, <a href="/search/physics?searchtype=author&query=Bachiller%2C+I">I. Bachiller</a>, <a href="/search/physics?searchtype=author&query=Barcellan%2C+L">L. Barcellan</a>, <a href="/search/physics?searchtype=author&query=Baldanza%2C+C">C. Baldanza</a>, <a href="/search/physics?searchtype=author&query=Battilana%2C+C">C. Battilana</a>, <a href="/search/physics?searchtype=author&query=Bellato%2C+M">M. Bellato</a>, <a href="/search/physics?searchtype=author&query=Bencze%2C+G">G. Bencze</a>, <a href="/search/physics?searchtype=author&query=Benettoni%2C+M">M. Benettoni</a>, <a href="/search/physics?searchtype=author&query=Beni%2C+N">N. Beni</a>, <a href="/search/physics?searchtype=author&query=Benvenuti%2C+A">A. Benvenuti</a>, <a href="/search/physics?searchtype=author&query=Bergnoli%2C+A">A. Bergnoli</a>, <a href="/search/physics?searchtype=author&query=Ramos%2C+L+C+B">L. C. Blanco Ramos</a>, <a href="/search/physics?searchtype=author&query=Borgonovi%2C+L">L. Borgonovi</a>, <a href="/search/physics?searchtype=author&query=Bragagnolo%2C+A">A. Bragagnolo</a>, <a href="/search/physics?searchtype=author&query=Cafaro%2C+V">V. Cafaro</a>, <a href="/search/physics?searchtype=author&query=Calderon%2C+A">A. Calderon</a>, <a href="/search/physics?searchtype=author&query=Calvo%2C+E">E. Calvo</a>, <a href="/search/physics?searchtype=author&query=Carlin%2C+R">R. Carlin</a>, <a href="/search/physics?searchtype=author&query=Montoya%2C+C+A+C">C. A. Carrillo Montoya</a>, <a href="/search/physics?searchtype=author&query=Cavallo%2C+F+R">F. R. Cavallo</a>, <a href="/search/physics?searchtype=author&query=Ruiz%2C+J+M+C">J. M. Cela Ruiz</a> , et al. (121 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="2302.01666v1-abstract-short" style="display: inline;"> The Compact Muon Solenoid (CMS) experiment prepares its Phase-2 upgrade for the high-luminosity era of the LHC operation (HL-LHC). Due to the increase of occupancy, trigger latency and rates, the full electronics of the CMS Drift Tube (DT) chambers will need to be replaced. In the new design, the time bin for the digitisation of the chamber signals will be of around 1~ns, and the totality of the s… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.01666v1-abstract-full').style.display = 'inline'; document.getElementById('2302.01666v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="2302.01666v1-abstract-full" style="display: none;"> The Compact Muon Solenoid (CMS) experiment prepares its Phase-2 upgrade for the high-luminosity era of the LHC operation (HL-LHC). Due to the increase of occupancy, trigger latency and rates, the full electronics of the CMS Drift Tube (DT) chambers will need to be replaced. In the new design, the time bin for the digitisation of the chamber signals will be of around 1~ns, and the totality of the signals will be forwarded asynchronously to the service cavern at full resolution. The new backend system will be in charge of building the trigger primitives of each chamber. These trigger primitives contain the information at chamber level about the muon candidates position, direction, and collision time, and are used as input in the L1 CMS trigger. The added functionalities will improve the robustness of the system against ageing. An algorithm based on analytical solutions for reconstructing the DT trigger primitives, called Analytical Method, has been implemented both as a software C++ emulator and in firmware. Its performance has been estimated using the software emulator with simulated and real data samples, and through hardware implementation tests. Measured efficiencies are 96 to 98\% for all qualities and time and spatial resolutions are close to the ultimate performance of the DT chambers. A prototype chain of the HL-LHC electronics using the Analytical Method for trigger primitive generation has been installed during Long Shutdown 2 of the LHC and operated in CMS cosmic data taking campaigns in 2020 and 2021. Results from this validation step, the so-called Slice Test, are presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('2302.01666v1-abstract-full').style.display = 'none'; document.getElementById('2302.01666v1-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, 2023; <span class="has-text-black-bis has-text-weight-semibold">originally announced</span> February 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">16 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/1912.06178">arXiv:1912.06178</a> <span> [<a href="https://arxiv.org/pdf/1912.06178">pdf</a>, <a href="https://arxiv.org/format/1912.06178">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/10.1088/1748-0221/14/12/C12010">10.1088/1748-0221/14/12/C12010 <i class="fa fa-external-link" aria-hidden="true"></i></a></span> </div> </div> </div> <p class="title is-5 mathjax"> Study of the effects of radiation on the CMS Drift Tubes Muon Detector for the HL-LHC </p> <p class="authors"> <span class="search-hit">Authors:</span> <a href="/search/physics?searchtype=author&query=Abbiendi%2C+G">G. Abbiendi</a>, <a href="/search/physics?searchtype=author&query=Maestre%2C+J+A">J. Alcaraz Maestre</a>, <a href="/search/physics?searchtype=author&query=Fern%C3%A1ndez%2C+A+%C3%81">A. 脕lvarez Fern谩ndez</a>, <a href="/search/physics?searchtype=author&query=Gonz%C3%A1lez%2C+B+%C3%81">B. 脕lvarez Gonz谩lez</a>, <a href="/search/physics?searchtype=author&query=Amapane%2C+N">N. Amapane</a>, <a href="/search/physics?searchtype=author&query=Bachiller%2C+I">I. Bachiller</a>, <a href="/search/physics?searchtype=author&query=Barcala%2C+J+M">J. M. Barcala</a>, <a href="/search/physics?searchtype=author&query=Barcellan%2C+L">L. Barcellan</a>, <a href="/search/physics?searchtype=author&query=Battilana%2C+C">C. Battilana</a>, <a href="/search/physics?searchtype=author&query=Bellato%2C+M">M. Bellato</a>, <a href="/search/physics?searchtype=author&query=Bencze%2C+G">G. Bencze</a>, <a href="/search/physics?searchtype=author&query=Benettoni%2C+M">M. Benettoni</a>, <a href="/search/physics?searchtype=author&query=Beni%2C+N">N. Beni</a>, <a href="/search/physics?searchtype=author&query=Benvenuti%2C+A">A. Benvenuti</a>, <a href="/search/physics?searchtype=author&query=Ramos%2C+L+C+B">L. C. Blanco Ramos</a>, <a href="/search/physics?searchtype=author&query=Boletti%2C+A">A. Boletti</a>, <a href="/search/physics?searchtype=author&query=Bragagnolo%2C+A">A. Bragagnolo</a>, <a href="/search/physics?searchtype=author&query=Cifuentes%2C+J+A+B">J. A. Brochero Cifuentes</a>, <a href="/search/physics?searchtype=author&query=Cafaro%2C+V">V. Cafaro</a>, <a href="/search/physics?searchtype=author&query=Calderon%2C+A">A. Calderon</a>, <a href="/search/physics?searchtype=author&query=Calvo%2C+E">E. Calvo</a>, <a href="/search/physics?searchtype=author&query=Cappati%2C+A">A. Cappati</a>, <a href="/search/physics?searchtype=author&query=Carlin%2C+R">R. Carlin</a>, <a href="/search/physics?searchtype=author&query=Montoya%2C+C+A+C">C. A. Carrillo Montoya</a>, <a href="/search/physics?searchtype=author&query=Cavallo%2C+F+R">F. R. Cavallo</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="1912.06178v1-abstract-short" style="display: inline;"> The CMS drift tubes (DT) muon detector, built for withstanding the LHC expected integrated and instantaneous luminosities, will be used also in the High Luminosity LHC (HL-LHC) at a 5 times larger instantaneous luminosity and, consequently, much higher levels of radiation, reaching about 10 times the LHC integrated luminosity. Initial irradiation tests of a spare DT chamber at the CERN gamma irrad… <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.06178v1-abstract-full').style.display = 'inline'; document.getElementById('1912.06178v1-abstract-short').style.display = 'none';">▽ More</a> </span> <span class="abstract-full has-text-grey-dark mathjax" id="1912.06178v1-abstract-full" style="display: none;"> The CMS drift tubes (DT) muon detector, built for withstanding the LHC expected integrated and instantaneous luminosities, will be used also in the High Luminosity LHC (HL-LHC) at a 5 times larger instantaneous luminosity and, consequently, much higher levels of radiation, reaching about 10 times the LHC integrated luminosity. Initial irradiation tests of a spare DT chamber at the CERN gamma irradiation facility (GIF++), at large ($\sim$O(100)) acceleration factor, showed ageing effects resulting in a degradation of the DT cell performance. However, full CMS simulations have shown almost no impact in the muon reconstruction efficiency over the full barrel acceptance and for the full integrated luminosity. A second spare DT chamber was moved inside the GIF++ bunker in October 2017. The chamber was being irradiated at lower acceleration factors, and only 2 out of the 12 layers of the chamber were switched at working voltage when the radioactive source was active, being the other layers in standby. In this way the other non-aged layers are used as reference and as a precise and unbiased telescope of muon tracks for the efficiency computation of the aged layers of the chamber, when set at working voltage for measurements. An integrated dose equivalent to two times the expected integrated luminosity of the HL-LHC run has been absorbed by this second spare DT chamber and the final impact on the muon reconstruction efficiency is under study. Direct inspection of some extracted aged anode wires presented a melted resistive deposition of materials. Investigation on the outgassing of cell materials and of the gas components used at the GIF++ are underway. Strategies to mitigate the ageing effects are also being developed. From the long irradiation measurements of the second spare DT chamber, the effects of radiation in the performance of the DTs expected during the HL-LHC run will be presented. <a class="is-size-7" style="white-space: nowrap;" onclick="document.getElementById('1912.06178v1-abstract-full').style.display = 'none'; document.getElementById('1912.06178v1-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, 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">Comments:</span> <span class="has-text-grey-dark mathjax">10 pages, 7 figures, to be published in JINST, editor I. Gonz谩lez Caballero</span> </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Report number:</span> CMS CR-2019/159 </p> <p class="comments is-size-7"> <span class="has-text-black-bis has-text-weight-semibold">Journal ref:</span> JINST 14 C12010 (2019) </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 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