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CERN Document Server 1,000 notices trouvées  1 - 10suivantfin  aller vers la notice: La recherche a duré 0.58 secondes. 
1.
First measurement of large area jet transverse momentum spectra in heavy-ion collisions / CMS Collaboration
Jet production in lead-lead (PbPb) and proton-proton (pp) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV is studied with the CMS detector at the LHC, using PbPb and pp data samples corresponding to integrated luminosities of 404 $\mu$b$^{-1}$ and 27.4 pb$^{-1}$, respectively. Jets with different areas are reconstructed using the anti-$k_{\mathrm{T}}$ algorithm by varying the distance parameter $R$. [...]
arXiv:2102.13080; FERMILAB-PUB-21-160-CMS; CMS-HIN-18-014; CERN-EP-2020-226; CMS-HIN-18-014-004.- Geneva : CERN, 2021-05-31 - 48 p. - Published in : JHEP 2105 (2021) 284 Article from SCOAP3: PDF; Fulltext: PDF; External links: Additional information for the analysis; CMS AuthorList
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2.
Evidence for X(3872) in Pb-Pb Collisions and Studies of its Prompt Production at $\sqrt {s_{NN}}$=5.02  TeV / CMS Collaboration
The first evidence for X(3872) production in relativistic heavy ion collisions is reported. The X(3872) production is studied in lead-lead (PpPb) collisions at a center-of-mass energy of ${\sqrt {\smash [b]{s_{_{\mathrm {NN}}}}}} = $ 5.02 TeV per nucleon pair, using the decay chain ${\mathrm{X}(3872)} \to \mathrm{J}/\psi\,\pi^{+}\pi^{-}\to \mu^{+}\mu^{-}\pi^{+}\pi^{-}$. [...]
arXiv:2102.13048; CMS-HIN-19-005; CERN-EP-2021-023; CMS-HIN-19-005-003.- Geneva : CERN, 2022-01-19 - 18 p. - Published in : Phys. Rev. Lett. 128 (2022) 032001 Fulltext: PDF; Fulltext from Publisher: PDF; External links: Additional information for the analysis; CMS AuthorList
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3.
Measurement of the azimuthal anisotropy of $\Upsilon$(1S) and $\Upsilon$(2S) mesons in PbPb collisions at $\sqrt{s_\mathrm{NN}} =$ 5.02 TeV / CMS Collaboration
The second-order Fourier coefficients (${v_{2}} $) characterizing the azimuthal distribution of $\Upsilon(\text{1S})$ and $\Upsilon(\text{2S})$ mesons arising from PbPb collisions at ${\sqrt {\smash [b]{s_{_{\mathrm {NN}}}}}} =$ 5.02 TeV are studied. The $\Upsilon$ mesons are reconstructed in their dimuon decay channel, as measured by the CMS detector. [...]
arXiv:2006.07707; CMS-HIN-19-002; CERN-EP-2020-039; CMS-HIN-19-002-005.- Geneva : CERN, 2021-05-25 - 33 p. - Published in : Phys. Lett. B 819 (2021) 136385 Article from SCOAP3: PDF; Fulltext: PDF; External links: Additional information for the analysis; CMS AuthorList
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4.
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: PDF; External links: Additional information for the analysis; CMS AuthorList
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5.
Combination of the W boson polarization measurements in top quark decays using ATLAS and CMS data at $\sqrt{s} = $ 8 TeV / CMS Collaboration
The combination of measurements of the W boson polarization in top quark decays performed by the ATLAS and CMS Collaborations is presented. The measurements are based on proton-proton collision data produced at the LHC at a centre-of-mass energy of 8 TeV, and corresponding to an integrated luminosity of about 20 fb$^{-1}$ for each experiment. [...]
arXiv:2005.03799; CMS-TOP-19-004; ATLAS-TOPQ-2018-02; CERN-EP-2020-012; CMS-TOP-19-004-003.- Geneva : CERN, 2020-08-12 - 63 p. - Published in : JHEP 2008 (2020) 051 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from publisher: PDF; External links: Additional information for the analysis; CMS AuthorList
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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: PDF; Fulltext from publisher: PDF; External link: Open Access fulltext
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7.
Measurement of quark- and gluon-like jet fractions using jet charge in PbPb and pp collisions at 5.02 TeV / CMS Collaboration
The momentum-weighted sum of the electric charges of particles inside a jet, known as jet charge, is sensitive to the electric charge of the particle initiating the parton shower. This paper presents jet charge distributions in ${\sqrt {\smash [b]{s_{_{\mathrm {NN}}}}}}=$ 5.02 TeV lead-lead (PbPb) and proton-proton (pp) collisions recorded with the CMS detector at the LHC. [...]
arXiv:2004.00602; CMS-HIN-18-018; CERN-EP-2020-019; CMS-HIN-18-018-004.- Geneva : CERN, 2020-07-17 - 37 p. - Published in : JHEP 2007 (2020) 115 Article from SCOAP3: PDF; Fulltext: PDF; External links: Additional information for the analysis; CMS AuthorList
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8.
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: PDF; External links: Additional information for the analysis; CMS AuthorList
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9.
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: PDF; Fulltext from Publisher: PDF; External links: Additional information for the analysis; CMS AuthorList
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10.
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: PDF; Fulltext from Publisher: PDF; External links: Additional information for the analysis; CMS AuthorList
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