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2022-05-25
05:27
Transverse Mass Distribution and Charge Asymmetry in W Boson Production to Third Order in QCD / Chen, Xuan (KIT, Karlsruhe, TP ; KIT, Karlsruhe, IKP) ; Gehrmann, Thomas (Zurich U.) ; Glover, Nigel ; Huss, Alexander (CERN) ; Yang, Tong-Zhi ; Zhu, Hua Xing
Charged gauge boson production at hadron colliders is a fundamental benchmark for the extraction of electroweak parameters and the understanding of the proton structure. [...]
arXiv:2205.11426 ; IPPP/22/32 ; ZU-TH 19/22 ; P3H-22-055 ; KA-TP-15-2022 ; CERN-TH-2022-083. - 5 p.
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2022-05-25
05:09
Nonlinear cooling of an annular beam distribution / Bazzani, A. (Bologna U. ; INFN, Bologna) ; Capoani, F. (Bologna U. ; INFN, Bologna) ; Giovannozzi, M. (CERN) ; Tomàs, R. (CERN)
In recent years, intense efforts have been devoted to studying how nonlinear effects can be used to shape the transverse beam distribution by means of an adiabatic crossing of nonlinear resonances. [...]
arXiv:2205.03290. - 19 p.
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2022-05-25
04:43
Snowmass White Paper: prospects for the measurement of top-quark couplings / Durieux, Gauthier (CERN) ; Camacho, Abel Gutiérrez (Valencia U., IFIC) ; Mantani, Luca (Cambridge U., DAMTP) ; Miralles, Víctor (Valencia U., IFIC ; INFN, Rome) ; López, Marcos Miralles (Valencia U., IFIC) ; Llácer Moreno, María (Valencia U., IFIC) ; Poncelet, René (Cambridge U.) ; Vryonidou, Eleni (Manchester U.) ; Vos, Marcel (Valencia U., IFIC)
In this contribution to the 2021 Snowmass community planning exercise that informs the American strategy for particle physics, we present the prospects for measurements of the top-quark couplings at future colliders. [...]
arXiv:2205.02140. - 35 p.
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2022-05-24
17:27
Recent CMS heavy flavor physics results / Simone, Federica Maria (INFN, Bari ; Bari U.) /CMS Collaboration
In this paper, recent results in the B-physics field achieved using proton-proton collision data at $\sqrt{s}=8$ TeV and $13$ TeV collected by CMS are presented. They include the angular analysis of the decay $\mathrm{B^{+}}\to \mathrm{K}^{*+} \mu^{+} \mu^{-}$ with Run 1 data, new measurements of D and B mesons production cross sections and CP violation studies using ${B}_s^{0}$ decays with Run 2 data. [...]
CMS-CR-2021-043.- Geneva : CERN, 2021 - 9 p. Fulltext: PDF;
In : 9th International Conference on New Frontiers in Physics (ICNFP), Online, Greece, 4 - 12 Sep 2020

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2022-05-23
13:56
Performance monitoring of the GE1/1 Triple-GEM detectors for the CMS Muon System / Milella, Gabriele (DESY) ; Simone, Federica Maria (INFN, Bari ; Bari U.) /CMS Collaboration
The muon system of the CMS experiment has been instrumented with two wheels of triple-GEM detectors in order to ensure redundancy in the pseudo-rapidity region 1.55-2.18 so keeping the trigger rate at an acceptable level while not compromising the CMS physics potential in Run 3 of the LHC.The station, named GE1/1, provides two additional muon hit measurements which will improve the muon tracking and triggering performance in combination with the existing CSC detectors.As the commissioning phase of the detector is ongoing, prompt assessment of the muon detection performance is crucial for adjusting the operating parameters of the detector and its electronics. This contribution will present a set of analysis tools developed for the detector performance monitoring based on tools common to all the CMS muon subdetectors. [...]
CMS-CR-2021-138.- Geneva : CERN, 2021 - 7 p. Fulltext: PDF;
In : 9th Annual Large Hadron Collider Physics (LHCP 2021), Online, GB, 7 - 12 Jun 2021

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2022-05-23
13:54
BSM H searches and rare H decay searches at CMS and ATLAS / Cooperstein, Stephane B (UC, San Diego) /ATLAS and CMS Collaborations
Searches for rare Higgs boson decays and extensions of the Higgs sector beyond the standard model are key to probing the dynamics of electroweak symmetry breaking. With the large LHC Run-2 dataset, considerable progress has been made in probing the largely unexplored Higgs boson interactions with the lighter fermions, as well as in searching for signs of new physics in the Higgs sector with mass scales ranging from 100 MeV to several TeV. [...]
CMS-CR-2022-064.- Geneva : CERN, 2022 - 7 p. Fulltext: PDF;
In : 56th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, It, 12 - 19 Mar 2022

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2022-05-23
13:54
Highlights from searches at CMS / Benato, Lisa (Hamburg U.) /CMS Collaboration
A selection of the latest CMS results is presented. Searches for new physics are performed with \mbox{Run-2} data and target new unexplored phase spaces, exploit new techniques and aim at non-conventional signatures..
CMS-CR-2022-062.- Geneva : CERN, 2022 - 5 p. Fulltext: PDF;
In : 56th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, It, 19 - 26 Mar 2022

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2022-05-23
13:54
Standard Model multibosons at CMS and ATLAS / Massironi, Andrea (INFN, Milan Bicocca) /ATLAS and CMS Collaborations
Multiboson measurements in ATLAS and CMS reached a high level of precision with LHC Run 1 and Run 2 data taking. In this report the most recent results of di-boson (WW, WZ, ZZ, V$\gamma$), tri-boson (WWW, WWZ, WZZ, ZZZ), and rare production mechanisms (electroweak and photon-induced) will be shown. [...]
CMS-CR-2022-061.- Geneva : CERN, 2022 - 5 p. Fulltext: PDF;
In : 56th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, It, 19 - 26 Mar 2022

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2022-05-23
13:54
Dark matter searches at CMS and ATLAS / Perez Adan, Danyer (DESY) /ATLAS and CMS Collaborations
A glimpse into the most recent searches for Dark Matter at the LHC performed by the ATLAS and CMS collaborations is presented. The results covered in this document are all based on Run-2 proton-proton collision data recorded at $\sqrt{s}=13\text{ TeV}$ and corresponding to an integrated luminosity of just under 140 fb\textsuperscript{-1}..
CMS-CR-2022-059.- Geneva : CERN, 2022 - 7 p. Fulltext: PDF;
In : 56th Rencontres de Moriond on Electroweak Interactions and Unified Theories, La Thuile, It, 12 - 19 Mar 2022

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2022-05-23
13:54
Phase 1 Upgrade of the CMS Hadron Calorimeter / Isik, Candan (Cukurova U.) /CMS Collaboration
The Phase 1 upgrade of the CMS Hadron Calorimeter detector (HCAL) involved installing silicon photomultipliers (SiPM) to measure the scintillator light output with better signal/noise and upgrading the read-out electronics, allowing for increased longitudinal segmentation and better performance. This talk will summarize the design, testing, installation, and commissioning of the HCAL Phase 1 upgrade. [...]
CMS-CR-2022-049.- Geneva : CERN, 2022 - 5 p. Fulltext: PDF;
In : Vienna Conference on Instrumentation, Online, Online, 21 - 25 Feb 2022

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