CERN Accelerating science

Preprints

Najnovije dodano:
2022-01-17
14:11
Pair-production of the charged IDM scalars at high energy CLIC / Klamka, Jan Franciszek (University of Warsaw (PL)) ; Zarnecki, Aleksander (University of Warsaw (PL))
The Inert Doublet Model (IDM) is a simple extension of the Standard Model, introducing an additional Higgs doublet that brings in four new scalar particles. The lightest of the IDM scalars is stable and is a good candidate for a dark matter particle. [...]
CLICdp-Pub-2022-001.- Geneva : CERN, 2022 - 17. Fulltext: PDF;

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2022-01-15
04:02
Flavour anomalies in supersymmetric scenarioswith non-minimal flavour violation / Boussejra, M.A. ; Mahmoudi, F. ; Uhlrich, G.
Motivated by tensions between experimental measurements and SM predictions in $b\to s \ell^+\ell^-$ transitions, we present the first study of non-minimal flavour violating MSSM scenarios contributing to the relevant Wilson coefficients to address the observed anomalies using SuperIso and MARTY We calculate the full one-loop analytical contributions of the general MSSM to Wilson coefficients relevant for flavor anomalies, together with the anomalous muon magnetic dipole moment $(g-2)_\mu$. [...]
arXiv:2201.04659 ; CERN-TH-2022-001.
- 31 p.
Fulltext

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2022-01-14
21:18
Search for long-lived heavy neutral leptons with displaced vertices in proton-proton collisions at $\sqrt{s} = $ 13 TeV
A search for heavy neutral leptons (HNLs), the right-handed Dirac or Majorana neutrinos, is performed in final states with three charged leptons (electrons or muons) using proton-proton collision data collected by the CMS experiment at $\sqrt{s} = $ 13 TeV at the CERN LHC. [...]
CERN-EP-2021-264 ; CMS-EXO-20-009-003.
- 2022.
Additional information for the analysis - CMS AuthorList - Fulltext - CMS HEPData

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2022-01-14
11:49
Precision QCD Measurements from CMS / Cerci, Salim (Istanbul U.) /CMS Collaboration
Recent measurements of jet events are presented which test QCD with unprecedented precision. The measurements are based on Run 2 data collected with the CMS detector at the LHC. [...]
CMS-CR-2021-131.- Geneva : CERN, 2021 - 5 p. Fulltext: PDF;
In : 9th Annual Large Hadron Collider Physics (LHCP 2021), Online, GB, 7 - 12 Jun 2021

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2022-01-14
09:22
Status and Commissioning of the CMS Experiment / Buchmuller, Oliver (Imperial Coll., London) ; Schilling, Frank-Peter (KIT, Karlsruhe, EKP)
After a brief overview of the Compact Muon Solenoid (CMS) experiment, the status of construction and installation is described in the first part of the note. The second part of the document is devoted to a discussion of the general commissioning strategy of the CMS experiment, with a particular emphasis on trigger, calibration and alignment. [...]
CMS-CR-2007-001.- Geneva : CERN, 2006 - 10 p. Fulltext: PDF;
In : 11th International Conference on B-physics at Hadron Machines, Oxford, UK, 25 - 29 Sep 2006

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2022-01-14
09:21
The upgrade of the CMS pixel detector / Favaro, Carlotta (IRFU, Saclay) /CMS Collaboration
The CMS inner pixel detector system is planned to be upgraded during the first phase of LHC upgrades. The plans call for an ultra low mass system with four barrel layers with three disks on either end. [...]
CMS-CR-2010-286.- Geneva : CERN, 2010 - 6 p. Fulltext: PDF;
In : 8th International Conference on Radiation Effects on Semiconductor Materials Detectors and Devices, Florence, Italy, 12 - 15 Oct 2010

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2022-01-14
09:18
Xrootd Monitoring for the CMS experiment / Tadel, Matevz (UC, San Diego) /CMS Collaboration
During spring and summer 2011 CMS deployed Xrootd front-end servers on all US T1 and T2 sites. This allows for remote access to all experiment data and is used for user-analysis, visualization, running of jobs at T2s and T3s when data is not available at local sites, and as a fail-over mechanism for data-access in CMSSW jobs. Monitoring of Xrootd infrastructure is implemented on three levels. [...]
CMS-CR-2012-086.- Geneva : CERN, 2012 - 10 p. Fulltext: PDF;
In : Computing in High Energy and Nuclear Physics 2012, New York, NY, USA, 21 - 25 May 2012

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2022-01-14
09:15
Stitched Together Transitioning CMS to a Hierarchical Threaded Framework / Jones, Christopher Duncan (Fermilab) ; Sexton-Kennedy, Elizabeth (Fermilab) /CMS Collaboration
Modern computing hardware is transitioning from using a single high frequency complicated computing core to many lower frequency simpler cores. As part of that transition, hardware manufacturers are urging developers to exploit concurrency in their programs via operating system threads. [...]
CMS-CR-2013-393.- Geneva : CERN, 2013 - p. Fulltext: PDF;
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013

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2022-01-14
09:13
Prospects for BSM searches at the high-luminosity LHC with the CMS detector / Shchutska, Lesya (Zurich, ETH) /CMS Collaboration
After a series of upgrades the Large Hadron Collider will deliver an integrated luminosity of up to 3000/fb with $\sqrt s$ = 14 GeV for each experiment. Aspects of the supersymmetry and other beyond the standard model (BSM)search programme are discussed for this scenario. [...]
CMS-CR-2014-347.- Geneva : CERN, 2014 - 7 p. Fulltext: PDF;
In : 37th International Conference on High Energy Physics, Valencia, Spain, 2 - 9 Jul 2014

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2022-01-14
09:12
Rate-capability study of a four-gap phenolic RPC with a $^{137}$Cs source / Lee, Kyong Sei (Korea U.) /CMS Collaboration
In this paper, we report on the systematic rate-capability study of four-gap phenolic resistive plate chambers (RPCs), with cosmic muons and gamma rays emitted from a $^{137}$Cs source. A prototype four-gap RPC with a gap thickness of 1.06 mm has been constructed with 2-mm thick phenolic high-pressure-laminated (HPL) plates. [...]
CMS-CR-2014-032.- Geneva : CERN, 2014 - 9 p. Fulltext: PDF;
In : 12th workshop on Resistive Plate Chambers and Related Detectors, Beijing, China, 23 - 28 Feb 2014

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