Measurement of Inclusive Jet Production and Nuclear Modifications in PPb Collisions at at √sNN PDF Download
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Author: CMS Collaboration
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Languages : en
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Author: CMS Collaboration
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ISBN:
Category :
Languages : en
Pages :
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Book Description
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Languages : en
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Inclusive jet production in pPb collisions at a nucleon-nucleon (NN) center-of-mass energy of sqrt(s[NN])=5.02 TeV is studied with the CMS detector at the LHC. A data sample corresponding to an integrated luminosity of 35 inverse nanobarns is analyzed. The jet transverse momentum spectra are studied in seven pseudorapidity intervals covering the range -2.0
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Languages : en
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The measurements of inclusive jet production are performed in pp and Pb+Pb collisions at √sNN = 2.76 TeV with the ATLAS detector at the LHC, corresponding to integrated luminosities of 4.0 and 0.14 nb-1, respectively. The jets are identified with the anti-kt algorithm with R = 0.4, and the spectra are measured over the kinematic range of jet transverse momentum 32
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Languages : en
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![Measurements of the Charm Jet Cross Section and Nuclear Modification Factor in PPb Collisions at Sqrt(s[NN] PDF](https://books.google.com/books/content/images/frontcover/VacLtAEACAAJ?fife=w80-h100)
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Languages : en
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The CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy of sqrt(s[NN]) = 5.02 TeV, as well as results from charm quark jets in proton-proton (pp) collisions at sqrt(s)= 2.76 and 5.02 TeV. By comparing the yields of the pPb and pp collision systems at the same energy, a nuclear modification factor for charm jets in pPb collisions at sqrt(s[NN]) = 5.02 TeV of R[pA] = 0.92 +/- 0.07 (stat) +/- 0.11 (syst) is obtained. This is consistent with an absence of final-state energy loss for charm quarks in pPb collisions. In addition, the fraction of jets coming from charm quarks is found to be consistent with that predicted by PYTHIA 6 for pp collisions at sqrt(s)= 2.76 and 5.02 TeV, and is independent of the jet transverse momentum from 55 to 400 GeV.
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Languages : en
Pages : 23
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Author: Shreyasi Acharya
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Languages : en
Pages : 0
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Author:
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Languages : en
Pages : 22
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Measurements of the centrality and rapidity dependence of inclusive jet production in √sNN=5.02 TeV proton–lead (p + Pb) collisions and the jet cross-section in √s=2.76 TeV proton–proton collisions are presented. These quantities are measured in datasets corresponding to an integrated luminosity of 27.8nb-1 and 4.0 pb-1, respectively, recorded with the ATLAS detector at the Large Hadron Collider in2013. The p + Pb collision centrality was characterised using the total transverse energy measured in the pseudorapidity interval -4.9 ? -3.2 in the direction of the lead beam. Results are presented for the double-differential per-collision yields as a function of jet rapidity and transverse momentum (psubT/sub) for minimum-bias and centrality-selected p + Pb collisions, and are compared to the jet rate from the geometric expectation. The total jet yield in minimum-bias events is slightly enhanced above the expectation in a psubT/sub-dependent manner but is consistent with the expectation within uncertainties. The ratios of jet spectra from different centrality selections show a strong modification of jet production at all psubT/sub at forward rapidities and for large p
![Measurements of Inclusive Jet Production in Almost-real [gamma] [gamma] Collisions at TRISTAN PDF](https://books.google.com/books/content/images/frontcover/n9yVPgAACAAJ?fife=w80-h100)
Author: B. J. Kim
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Languages : en
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Languages : en
Pages : 22
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We present a measurement of b jet transverse momentum (pT) spectra in protonlead (pPb) collisions using a dataset corresponding to about 35 nb-1 collected with the CMS detector at the LHC. Jets from b quark fragmentation are found by exploiting the long lifetime of hadrons containing a b quark through tagging methods using distributions of the secondary vertex mass and displacement. Extracted cross sections for b jets are scaled by the effective number of nucleon-nucleon collisions and are compared to a reference obtained from PYTHIA simulations of pp collisions. Furthermore, the PYTHIA-based estimate of the nuclear modification factor is found to be 1.22±0.15 (stat+syst pPb)_0.27 (syst PYTHIA) averaged over all jets with pT between 55 and 400 GeV/c and with.
