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CERN Document Server 582 records found  1 - 10nextend  jump to record: Search took 0.53 seconds. 
1.
Performance of the CMS high-level trigger during LHC Run 2 / CMS Collaboration
The CERN LHC provided proton and heavy ion collisions during its Run 2 operation period from 2015 to 2018. Proton-proton collisions reached a peak instantaneous luminosity of 2.1 $ \times $ 10$^{34}$ cm$^{-2}$s$^{-1} $, twice the initial design value, at $ \sqrt{s}= $ 13 TeV. [...]
arXiv:2410.17038; CMS-TRG-19-001; CERN-EP-2024-259; CMS-TRG-19-001-003.- Geneva : CERN, 2024-11-22 - 62 p. - Published in : JINST 19 (2024) P11021 Fulltext: 2410.17038 - PDF; FERMILAB-PUB-24-0717-CMS - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
2.
The ATLAS experiment at the CERN Large Hadron Collider: a description of the detector configuration for Run 3 / ATLAS Collaboration
The ATLAS detector is installed in its experimental cavern at Point 1 of the CERN Large Hadron Collider. During Run 2 of the LHC, a luminosity of $\mathcal{L}=2\times 10^{34}\mathrm{cm}^{-2}\mathrm{s}^{-1}$ was routinely achieved at the start of fills, twice the design luminosity. [...]
arXiv:2305.16623; CERN-EP-2022-259.- Geneva : CERN, 2024-05-23 - 233 p. - Published in : JINST 19 (2024) P05063 Fulltext: 2305.16623 - PDF; document - PDF; External link: Previous draft version
In : The Large Hadron Collider and The Experiments for Run 3
3.
Charged Particle Tracking in Real Time using Full-Mesh Data Delivery Architecture and Associative Memory Techniques / Ajuha, Sudha (Sao Paulo State U.) ; Shinoda, Ailton Akira (Sao Paulo State U.) ; Ramalho, Lucas Arruda (Sao Paulo State U.) ; Baulieu, Guillaume (IP2I, Lyon) ; Boudoul, Gaelle (IP2I, Lyon) ; Casarsa, Massimo (INFN, Trieste) ; Cascadan, Andre (Sao Paulo State U.) ; Clement, Emyr (Bristol U.) ; de Paiva, Thiago Costa (Sao Paulo State U.) ; Das, Souvik (Florida U.) et al.
We present a flexible and scalable approach to address the challenges of charged particle track reconstruction in real-time event filters (Level-1 triggers) in collider physics experiments. The method described here is based on a full-mesh architecture for data distribution and relies on the Associative Memory approach to implement a pattern recognition algorithm that quickly identifies and organizes hits associated to trajectories of particles originating from particle collisions. [...]
arXiv:2210.02489; FERMILAB-PUB-22-776-PPD; CERN-CMS-NOTE-2022-011; CERN-CMS-NOTE-2022-011.- Geneva : CERN, 2022-12-05 - 33 p. - Published in : JINST 17 (2022) P12002 Fulltext: NOTE2022_011 - PDF; 2210.02489 - PDF; 628d29ac594cad21c9fdf690e3f3fc02 - PDF; Fulltext from Publisher: PDF; Fulltext from publisher: HTM; External link: Fermilab Library Server
4.
Measurement of the charge asymmetry of electrons from the decays of $W$ bosons produced in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV / CDF Collaboration
At the Fermilab Tevatron proton-antiproton ($p\bar{p}$) collider, high-mass electron-neutrino ($e\nu$) pairs are produced predominantly in the process $p \bar{p} \rightarrow W(\rightarrow e\nu) + X$. The asymmetry of the electron and positron yield as a function of their pseudorapidity constrain the slope of the ratio of the $u$- to $d$-quark parton distributions versus the fraction of the proton momentum carried by the quarks. [...]
arXiv:2107.04678; FERMILAB-PUB-21-293-E.- 2021-11-01 - 27 p. - Published in : Phys. Rev. D 104 (2021) 092002 Fulltext: Fulltext - PDF; fermilab-pub-21-293-e - PDF; 2107.04678 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
5.
Dependence of inclusive jet production on the anti-${k_{\mathrm{T}}}$ distance parameter in pp collisions at $\sqrt{s} = $ 13 TeV / CMS Collaboration
The dependence of inclusive jet production in proton-proton collisions with a center-of-mass energy of 13 TeV on the distance parameter $R$ of the anti-${k_{\mathrm{T}}}$ algorithm is studied using data corresponding to integrated luminosities up to 35.9 fb$^{-1}$ collected by the CMS experiment in 2016. The ratios of the inclusive cross sections as functions of transverse momentum ${p_{\mathrm{T}}}$ and rapidity $y$, for $R$ in the range 0.1 to 1.2 to those using $R= $ 0.4 are presented in the region 84 $ < {p_{\mathrm{T}}} < $ 1588 GeV and $|y| < $ 2.0. [...]
arXiv:2005.05159; CMS-SMP-19-003; CERN-EP-2020-040; CMS-SMP-19-003-003.- Geneva : CERN, 2020-12-11 - 43 p. - Published in : JHEP 2012 (2020) 082 Article from SCOAP3: PDF; Fulltext: SMP-19-003-arXiv - PDF; 2005.05159 - PDF; External links: Additional information for the analysis; CMS AuthorList
6.
Identification of heavy, energetic, hadronically decaying particles using machine-learning techniques / CMS Collaboration
Machine-learning (ML) techniques are explored to identify and classify hadronic decays of highly Lorentz-boosted W/Z/Higgs bosons and top quarks. Techniques without ML have also been evaluated and are included for comparison. [...]
arXiv:2004.08262; CMS-JME-18-002; CERN-EP-2020-037; CMS-JME-18-002-005.- Geneva : CERN, 2020-06-03 - 87 p. - Published in : JINST 15 (2020) P06005 Fulltext: 2004.08262 - PDF; CMS-JME-18-002-arXiv - PDF; Fulltext from publisher: PDF; External link: Open Access fulltext
7.
Measurement of the cross section for $\mathrm{t\bar{t}}$ production with additional jets and b jets in pp collisions at $\sqrt{s} = $ 13 TeV / CMS Collaboration
Measurements of the cross section for the production of top quark pairs in association with a pair of jets from bottom quarks (${\sigma_{{\mathrm{t\bar{t}}\mathrm{b\bar{b}}} }} $) and in association with a pair of jets from quarks of any flavor or gluons (${\sigma_{{\mathrm{t\bar{t}} \mathrm{jj}} }} $) and their ratio are presented. The data were collected in proton-proton collisions at a center-of-mass energy of 13 TeV by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.9 fb$^{-1}$. [...]
arXiv:2003.06467; CMS-TOP-18-002; CERN-EP-2020-011; CMS-TOP-18-002-003.- Geneva : CERN, 2020-07-20 - 46 p. - Published in : JHEP 2007 (2020) 125 Article from SCOAP3: PDF; Fulltext: CMS-TOP-18-002-arXiv - PDF; 2003.06467 - PDF; External links: Additional information for the analysis; CMS AuthorList
8.
Study of central exclusive $\pi^{+}\pi^{-}$ production in proton-proton collisions at $\sqrt{s} = $ 5.02 and 13 TeV / CMS Collaboration
Central exclusive production of $\pi^{+}\pi^{-}$ pairs is measured with the CMS detector in proton-proton collisions at the LHC at center-of-mass energies of 5.02 and 13 TeV. The theoretical description of these nonperturbative processes, which have not yet been measured in detail at the LHC, poses a significant challenge to models. [...]
arXiv:2003.02811; CMS-FSQ-16-006; CERN-EP-2020-005; CMS-FSQ-16-006-003.- Geneva : CERN, 2020-08-10 - 28 p. - Published in : Eur. Phys. J. C 80 (2020) 718 Article from SCOAP3: PDF; Fulltext: 2003.02811 - PDF; CMS-FSQ-16-006-arXIv - PDF; Fulltext from Publisher: PDF; External links: Additional information for the analysis; CMS AuthorList
9.
Pileup mitigation at CMS in 13 TeV data / CMS Collaboration
With increasing instantaneous luminosity at the LHC come additional reconstruction challenges. At high luminosity, many collisions occur simultaneously within one proton-proton bunch crossing. [...]
arXiv:2003.00503; CMS-JME-18-001; CERN-EP-2020-017; CMS-JME-18-001-003.- Geneva : CERN, 2020-09-15 - 57 p. - Published in : JINST 15 (2020) P09018 Fulltext: CMS-JME-18-001-arXiv - PDF; 2003.00503 - PDF; Fulltext from Publisher: PDF; External links: Additional information for the analysis; CMS AuthorList
10.
Measurement of single-diffractive dijet production in proton-proton collisions at $\sqrt{s} =$ 8 TeV with the CMS and TOTEM experiments / CMS and TOTEM Collaborations
Measurements are presented of the single-diffractive dijet cross section and the diffractive cross section as a function of the proton fractional momentum loss $\xi$ and the four-momentum transfer squared $t$. Both processes ${\mathrm{p}}{\mathrm{p}} \to {\mathrm{p}}\mathrm{X}$ and ${\mathrm{p}}{\mathrm{p}} \to \mathrm{X}{\mathrm{p}}$, ie with the proton scattering to either side of the interaction point, are measured, where $\mathrm{X}$ includes at least two jets; the results of the two processes are averaged [...]
arXiv:2002.12146; CMS-FSQ-12-033; TOTEM-2020-001; CERN-EP-2019-260; CMS-FSQ-12-033-003.- Geneva : CERN, 2020-12-17 - 42 p. - Published in : Eur. Phys. J. C Article from SCOAP3: PDF; Fulltext: PDF; External links: Additional information for the analysis; CMS AuthorList

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