# CMS Conference Reports

Nyeste elementer:
2022-08-15
14:51
 Measurements of charge-dependent correlations with CMS / Behera, Subash Chandra (Indian Inst. Tech., Madras) /CMS Collaboration Charge-dependent azimuthal anisotropy Fourier coefficients are measured with two- and three-particle correlations in pPb and PbPb collisions. The difference between positively and negatively charged particles for the second-order two-particle $(v_2\{2\})$ and three-particle $(v_2\{3\})$ coefficients for both pPb and PbPb, and third order two-particle coefficient $(v_3\{2\})$ for PbPb, are presented. [...] CMS-CR-2022-103.- Geneva : CERN, 2022 - 7 p. Fulltext: PDF; In : XXIXth International Conference on Ultra-relativistic Nucleus-Nucleus Collisions, Krakow, Online, Pl, 4 - 10 Apr 2022

2022-08-15
10:54
 The DAQ and clock distribution system of CMS MIP Timing Detector / Simkina, Polina (IRFU, Saclay) /CMS Collaboration The Compact Muon Solenoid (CMS) detector at the CERN Large Hadron Collider (LHC) is undergoing an extensive Phase-II upgrade program to cope with the challenging conditions of the High-Luminosity LHC (HL-LHC). A new timing detector is designed to measure minimum ionizing particles (MIPs) with a time resolution of 30-60 ps during the entire HL-LHC phase. [...] CMS-CR-2022-099.- Geneva : CERN, 2022 - 3 p. Fulltext: PDF; In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, It, 22 - 28 May 2022

2022-08-15
10:54
 Latest top quark measurements with the CMS detector / Okawa, Hideki (Fudan U.) /CMS Collaboration More than 120 million top quark pairs have been produced in CMS during the second data taking period at the Large Hadron Collider. CMS provides opportunities to precisely measure the inclusive and differential cross sections of various top quark processes as well as the top quark properties, and to search for rare processes and decays, which are promising windows for physics beyond the standard model. [...] CMS-CR-2022-096.- Geneva : CERN, 2022 - 7 p. Fulltext: PDF; In : DIS2022: XXIX International Workshop on Deep-Inelastic Scattering and Related Subjects, Santiago De Compostela, Es, 2 - 6 May 2022

2022-08-15
10:54
 YSF: ttH and tH production in multilepton channels with CMS experiment / Ramon Alvarez, Clara (Oviedo U.) /CMS Collaboration We measure the CP structure of the Yukawa interaction between the Higgs boson ($\mathrm{H}$) and the top quark in a data sample enriched in the $\mathrm{t}\bar{\mathrm{t}}\mathrm{H}$ and $\mathrm{t}\mathrm{H}$ associated production. Using $138~\mathrm{fb}^{-1}$ of data collected in proton-proton collisions at $\sqrt{s}=$13 TeV by the CMS experiment at the CERN LHC, and targeting events where the H decays via via $\mathrm{H} \to \mathrm{W}\mathrm{W}$ or $\mathrm{H}\to\tau\tau$ and top quarks decay either leptonically or hadronically. [...] CMS-CR-2022-070.- Geneva : CERN, 2022 - 9 p. Fulltext: PDF; In : XXXV Rencontres de Physique de La Vallée d'Asoste, La Thuile, It, 6 - 12 Mar 2022

2022-07-20
16:24
 Track Finding and Neural Network-Based Primary Vertex Reconstruction with FPGAs for the Upgrade of the CMS Level-1 Trigger System / Brown, Christopher Edward (Imperial Coll., London) /CMS Collaboration The CMS experiment will be upgraded to take advantage of the rich and ambitious physics opportunities provided by the High Luminosity LHC. Part of this upgrade will see the first level (Level-1) trigger use charged particle tracks from the full outer silicon tracker as an input for the first time. [...] CMS-CR-2022-100.- Geneva : CERN, 2022 - 11 p. Fulltext: PDF; In : Connecting The Dots 2022, Princeton, United States Of America, 31 May - 2 Jun 2022

2022-07-20
16:23
 The CMS Trigger System / Dordevic, Milos (VINCA Inst. Nucl. Sci., Belgrade) /CMS Collaboration The CMS Experiment at CERN uses a two-stage triggering system composed of the Level-1 (L1), instrumented with custom-designed hardware boards with an output rate of 100 kHz, and the High Level Trigger (HLT), streamlined version of the offline software reconstruction that runs on the computing farm, allowing to store around 1.5 kHz rate. New trigger algorithms and new features, as well as an optimized trigger menus at both L1 and HLT are mandatory in order to be able to successfully record the events at higher data loads due to increasing luminosity and pileup at the LHC in Run 3. [...] CMS-CR-2022-092.- Geneva : CERN, 2022 - 11 p. Fulltext: PDF; In : 39th Conference on Recent Developments in High Energy Physics and Cosmology (HEP 2022), Thessaloniki, Greece, 15 - 18 Jun 2022

2022-07-20
14:17
 A 40 MHz Level-1 trigger scouting system for the CMS Phase-2 upgrade / Rabady, Dinyar Sebastian (CERN) /CMS Collaboration The CMS Phase-2 upgrade for the HL-LHC aims at preserving and expanding the current physics capability of the experiment under extreme pileup conditions. A new tracking system incorporates a track finder processor, providing tracks to the Level-1 (L1) trigger. [...] CMS-CR-2022-102.- Geneva : CERN, 2022 - 5 p. Fulltext: PDF; In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, It, 22 - 28 May 2022

2022-07-20
14:13
 Performance of triple-GEM detectors for the CMS Phase-2 upgrade measured in test beam / Pellecchia, Antonello (INFN, Bari ; Bari U.) /CMS Collaboration Triple-GEM detectors for the GE2/1 and ME0 stations of the endcap muon system for the Phase-2 upgrade of the CMS experiment have been operated in a test beam to measure their efficiency and spatial resolution, together with a high spatial resolution triple-GEM tracker. A production module of GE2/1 detectors and a prototype ME0 detector show excellent local efficiency. [...] CMS-CR-2022-094.- Geneva : CERN, 2022 - 3 p. Fulltext: PDF; In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, It, 22 - 28 May 2022

2022-07-20
14:08
 The CMS Tracker for the High Luminosity LHC / Rossi, Alessandro (INFN, Perugia ; Perugia U.) /CMS Collaboration The LHC machine is planning an upgrade program which will smoothly bring the instantaneous luminosity to about $5-7.5\times10^{34}$\,cm$^{-2}$s$^{-1}$, to reach an integrated luminosity of $3000-4500$\,fb$^{-1}$ by the end of 2039. This High Luminosity LHC scenario, HL-LHC, will require an upgrade program of the LHC detectors known as Phase-2 upgrade. [...] CMS-CR-2022-091.- Geneva : CERN, 2022 - 5 p. Fulltext: PDF; In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, It, 22 - 28 May 2022

2022-07-20
14:08
 Novel GEM foil layout for high-rate particle environment in the CMS ME0 muon detector / Cagnotta, Antimo (INFN, Naples ; Naples U.) /CMS Collaboration Triple GEM technology has been selected to extend the acceptance of the CMS muon spectrometer to the region $2.4<\vert\eta\vert< 2.8$, the so called ME0 project. The ME0 stations will be formed by stacks (six-layer stations) of triple-GEM chambers, which must operate in a harsh environment with expected background particle fluxes ranging between 3 and 150 kHz/cm$^2$ on the chamber surface. [...] CMS-CR-2022-084.- Geneva : CERN, 2022 - 4 p. Fulltext: PDF; In : 15th Pisa Meeting on Advanced Detectors, La Biodola - Isola D'elba, It, 22 - 28 May 2022