Centrality Dependence Of High Pt D Meson Suppression In Pb Pb Collisions At Sqrt S Mathrm N Mathrm N
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Centrality Dependence Of High Pt D Meson Suppression In Pb Pb Collisions At Sqrt S Mathrm N Mathrm N
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Author :
language : en
Publisher:
Release Date : 2015
Centrality Dependence Of High Pt D Meson Suppression In Pb Pb Collisions At Sqrt S Mathrm N Mathrm N written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
We measured the nuclear modification factor, R-AA, of the prompt charmed mesons D°, D+ and D*+, and their antiparticles, using the ALICE detector in Pb-Pb collisions at a centre-of-mass energy √sNN = 2.76 TeV in two transverse momentum intervals, 5
Addendum Centrality Dependence Of High Pt D Meson Suppression In Pb Pb Collisions At Snn
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Author : Jaroslav Adam
language : en
Publisher:
Release Date : 2017
Addendum Centrality Dependence Of High Pt D Meson Suppression In Pb Pb Collisions At Snn written by Jaroslav Adam and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Transverse Momentum Dependence Of D Meson Production In Pb Pb Collisions At Sqrt Mathrm S Mathrm Nn
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Author :
language : en
Publisher:
Release Date : 2016
Transverse Momentum Dependence Of D Meson Production In Pb Pb Collisions At Sqrt Mathrm S Mathrm Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
The production of prompt charmed mesons D0, D+ and D*+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at the centre-of-mass energy per nucleon pair, √sNN, of 2.76 TeV. The production yields for rapidity.
Centrality Dependence Of Inclusive J Psi Production In P Pb Collisions At Sqrt S Mathrm Nn
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Author :
language : en
Publisher:
Release Date : 2015
Centrality Dependence Of Inclusive J Psi Production In P Pb Collisions At Sqrt S Mathrm Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Here, we present a measurement of inclusive J/[Psi] production in p-Pb collisions at √SNN = 5.02 TeV as a function of the centrality of the collision, as estimated from the energy deposited in the Zero Degree Calorimeters. We also performed this measurement with the ALICE detector down to zero transverse momentum, pT, in the backward (-4.46
Inclusive Prompt And Non Prompt J Psi Production At Mid Rapidity In Pb Pb Collisions At Sqrt S Mathrm Nn
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Author :
language : en
Publisher:
Release Date : 2015
Inclusive Prompt And Non Prompt J Psi Production At Mid Rapidity In Pb Pb Collisions At Sqrt S Mathrm Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Here, the transverse momentum (pT) dependence of the nuclear modification factor RAA and the centrality dependence of the average transverse momentum pT for inclusive J/[psi] have been measured with ALICE for Pb-Pb collisions at √sNN=2.76 TeV in the e+e- decay channel at mid-rapidity (
Relative Modification Of Prompt Psi Mathrm 2s And Mathrm J Psi Yields From Pp To Pbpb Collisions At Sqrt S Mathrm Nn
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Author :
language : en
Publisher:
Release Date : 2016
Relative Modification Of Prompt Psi Mathrm 2s And Mathrm J Psi Yields From Pp To Pbpb Collisions At Sqrt S Mathrm Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
The relative modification of the prompt psi(2S) and J/psi yields from pp to PbPb collisions, at the center of mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on pp and PbPb data samples collected by the CMS experiment at the LHC in 2015, corresponding to integrated luminosities of 28.0 inverse picobarns and 464 inverse microbarns, respectively. The double ratio of measured yields of prompt charmonia reconstructed through their decays into muon pairs, (N[psi(2S)]/N[J/psi])[PbPb]/ (N[psi(2S)]/N[J/psi])[pp], is determined as a function of PbPb collision centrality and charmonium transverse momentum pt, in two kinematic intervals: abs(y)
Suppression And Azimuthal Anisotropy Of Prompt And Nonprompt J Psi Production In Pbpb Collisions At Sqrt S Nn
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Author :
language : en
Publisher:
Release Date : 2016
Suppression And Azimuthal Anisotropy Of Prompt And Nonprompt J Psi Production In Pbpb Collisions At Sqrt S Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
The nuclear modification factor ${R_{\mathrm{AA}}} $ and the azimuthal anisotropy coefficient ${v_{2}} $ of prompt and nonprompt (i.e. those from decays of b hadrons) $\mathrm{J}/\psi$ mesons, measured from PbPb and pp collisions at $\sqrt{s_{\mathrm{NN}}} = $ 2.76 TeV at the LHC, are reported. The results are presented in several event centrality intervals and several kinematic regions, for transverse momenta $p_{\mathrm{T}}> $ 6.5 GeV/$c$ and rapidity $
Strong Suppression Of Upsilon Excited States In Pb Pb Collisions At Square Root S Subscript Nn
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Author : Chad Steven Flores
language : en
Publisher:
Release Date : 2017
Strong Suppression Of Upsilon Excited States In Pb Pb Collisions At Square Root S Subscript Nn written by Chad Steven Flores and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
The relative yields of [upsilon] mesons produced in p + p and Pb+Pb collisions at [square root] s[subscript NN] = 5.02 TeV and reconstructed via the dimuon decay channel are measured using data collected by the CMS experiment. Double ratios are formed by comparing the yields of the excited states, [upsilon](2S) and [upsilon](3S), to the ground state, [upsilon](1S), in both Pb+Pb and p + p collisions at the same energy. The double ratios, [[upsilon](nS)/[upsilon](1S)][subscript PbPb] /[[upsilon](nS)/[upsilon](1S)][subscript pp] ,are measured to be 0.308 ± 0.055 (stat) ± 0.019 (syst) for the [upsilon](2S) and less than 0.26 at 95% confidence level for the [upsilon](3S). The double ratios are studied as a function of collision centrality, as well as dimuon transverse momentum, and rapidity. As a function ofcollision centrality the [upsilon](2S) double ratio is consistent with unity in the most peripheral (70–100%) bin and is consistent with zero in the most central (0–5%) bin. The [upsilon](2S) double ratio is consistent with a constant dependence on the kinematic variables, with a large suppression seen throughout the studied kinematic range. No significant [upsilon](3S) signal is found in the Pb+Pb data. The [upsilon](3S) double ratio is consistently below unity for all bins, including the most peripheral (50–100%) bin, indicating a strong suppression of the [upsilon](3S) relative to the [upsilon](1S).
Centrality Dependence Of Dihadron Correlations And Azimuthal Anisotropy Harmonics In Pbpb Collisions At Sqrt S Nn
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Author :
language : en
Publisher:
Release Date : 2012
Centrality Dependence Of Dihadron Correlations And Azimuthal Anisotropy Harmonics In Pbpb Collisions At Sqrt S Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Measurements from the CMS experiment at the LHC of dihadron correlations for charged particles produced in PbPb collisions at a nucleon-nucleon centre-of-mass energy of 2.76 TeV are presented. The results are reported as a function of the particle transverse momenta (pt) and collision centrality over a broad range in relative pseudorapidity [Delta(eta)] and the full range of relative azimuthal angle [Delta(phi)]. The observed two-dimensional correlation structure in Delta(eta) and Delta(phi) is characterised by a narrow peak at (Delta(eta), Delta(phi)) approximately (0, 0) from jet-like correlations and a long-range structure that persists up to at least.
Suppression Of Upsilon 1s Upsilon 2s And Upsilon 3s Production In Pbpb Collisions At Sqrt S Nn
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Author :
language : en
Publisher:
Release Date : 2016
Suppression Of Upsilon 1s Upsilon 2s And Upsilon 3s Production In Pbpb Collisions At Sqrt S Nn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
The production yields of Upsilon(1S), Upsilon(2S), and Upsilon(3S) quarkonium states are measured through their decays into muon pairs in the CMS detector, in PbPb and pp collisions at the centre-of-mass energy per nucleon pair of 2.76 TeV. The data correspond to integrated luminosities of 166 inverse microbarns and 5.4 inverse picobarns for PbPb and pp collisions, respectively. Differential production cross sections are reported as functions of Upsilon rapidity $y$ up to 2.4, and transverse momentum pt up to 20 GeV/c. A strong centrality-dependent suppression is observed in PbPb relative to pp collisions, by factors of up to ~2 and 8, for the Upsilon(1S) and Upsilon(2S) states, respectively. No significant dependence of this suppression is observed as a function of y or pt. The Upsilon(3S) state is not observed in PbPb collisions, which corresponds to a suppression for the centrality-integrated data by at least a factor of ~7 at a 95% confidence level. The observed suppression is in agreement with theoretical scenarios modeling the sequential melting of quarkonium states in a quark gluon plasma.