Centrality Evolution Of The Charged Particle Pseudorapidity Density Over A Broad Pseudorapidity Range In Pb Pb Collisions At Snn
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Centrality Evolution Of The Charged Particle Pseudorapidity Density Over A Broad Pseudorapidity Range In Pb Pb Collisions At Snn
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Author : Jaroslav Adam
language : en
Publisher:
Release Date : 2016
Centrality Evolution Of The Charged Particle Pseudorapidity Density Over A Broad Pseudorapidity Range 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 2016 with categories.
Centrality Evolution Of The Charged Particle Pseudorapidity Density Over A Broad Pseudorapidity Range In Pb Pb Collisions At Mml
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Author :
language : en
Publisher:
Release Date : 2016
Centrality Evolution Of The Charged Particle Pseudorapidity Density Over A Broad Pseudorapidity Range In Pb Pb Collisions At Mml 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 centrality dependence of the charged-particle pseudorapidity density measured with ALICE in Pb-Pb collisions at √sNN = 2.76 TeV over a broad pseudorapidity range is presented. This Letter extends the previous results reported by ALICE to more peripheral collisions. No strong change of the overall shape of charged-particle pseudorapidity density distributions with centrality is observed, and when normalised to the number of participating nucleons in the collisions, the evolution over pseudorapidity with centrality is likewise small. Broadening the pseudorapidity range (-3.5
Charged Particle Pseudorapidity Density At Mid Rapidity In P Pb Collisions At Snn
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Author : Shreyasi Acharya
language : en
Publisher:
Release Date : 2019
Charged Particle Pseudorapidity Density At Mid Rapidity In P Pb Collisions At Snn written by Shreyasi Acharya and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
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.
Pseudorapidity Distributions Of Charged Particles As A Function Of Centrality In Pb Pb Collisions At 158 And 40 Gev Per Nucleon Incident Energy
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Author : C. AMSLER
language : en
Publisher:
Release Date : 2002
Pseudorapidity Distributions Of Charged Particles As A Function Of Centrality In Pb Pb Collisions At 158 And 40 Gev Per Nucleon Incident Energy written by C. AMSLER and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.
Centrality Dependence Of Particle Production In Math Mi P Mi Mo Mo Mi Pb Mi Math Collisions At Math Mrow Msqrt Msub Mi Mi Mi Mathvariant
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Author :
language : en
Publisher:
Release Date : 2015
Centrality Dependence Of Particle Production In Math Mi P Mi Mo Mo Mi Pb Mi Math Collisions At Math Mrow Msqrt Msub Mi Mi Mi Mathvariant 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 report measurements of the primary charged-particle pseudorapidity density and transverse momentum distributions in p-Pb collisions at √sNN = 5.02TeV and investigate their correlation with experimental observables sensitive to the centrality of the collision. Centrality classes are defined by using different event-activity estimators, i.e., charged-particle multiplicities measured in three different pseudorapidity regions as well as the energy measured at beam rapidity (zero degree). The procedures to determine the centrality, quantified by the number of participants (Npart) or the number of nucleon-nucleon binary collisions (Ncoll) are described. We show that, in contrast to Pb-Pb collisions, in p-Pb collisions large multiplicity fluctuations together with the small range of participants available generate a dynamical bias in centrality classes based on particle multiplicity. We propose to use the zero-degree energy, which we expect not to introduce a dynamical bias, as an alternative event-centrality estimator. Based on zero-degree energy-centrality classes, the Npart dependence of particle production is studied. Under the assumption that the multiplicity measured in the Pb-going rapidity region scales with the number of Pb participants, an approximate independence of the multiplicity per participating nucleon measured at mid-rapidity of the number of participating nucleons is observed. Furthermore, at high-pT the p-Pb spectra are found to be consistent with the pp spectra scaled by Ncoll for all centrality classes. Our results represent valuable input for the study of the event-activity dependence of hard probes in p-Pb collisions and, hence, help to establish baselines for the interpretation of the Pb-Pb data.
Pseudorapidity Asymmetry And Centrality Dependence Of Charged Hadron Spectra In D Au Collisions At Sqrt Snn
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Author :
language : en
Publisher:
Release Date : 2005
Pseudorapidity Asymmetry And Centrality Dependence Of Charged Hadron Spectra In D Au Collisions At Sqrt Snn written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
The pseudorapidity asymmetry and centrality dependence of charged hadron spectra in d+Au collisions at (square root)s{sub NN} = 200 GeV are presented. The charged particle density at mid-rapidity, its pseudorapidity asymmetry and centrality dependence are reasonably reproduced by a Multi-Phase Transport model, by HIJING, and by the latest calculations in a saturation model. Ratios of transverse momentum spectra between backward and forward pseudorapidity are above unity for p{sub T} below 5 GeV/c. The ratio of central to peripheral spectra in d+Au collisions shows enhancement at 2
Dependence On Pseudorapidity And Centrality Of Charged Hadron Production In Pbpb Collisions At A Nucleon Nucleon Centre Of Mass Energy Of 2 76 Tev
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Author :
language : en
Publisher:
Release Date : 2011
Dependence On Pseudorapidity And Centrality Of Charged Hadron Production In Pbpb Collisions At A Nucleon Nucleon Centre Of Mass Energy Of 2 76 Tev written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
A measurement is presented of the charged hadron multiplicity in hadronic PbPb collisions, as a function of pseudorapidity and centrality, at a collision energy of 2.76 TeV per nucleon pair. The data sample is collected using the CMS detector and a minimum-bias trigger, with the CMS solenoid off. The number of charged hadrons is measured both by counting the number of reconstructed particle hits and by forming hit doublets of pairs of layers in the pixel detector. The two methods give consistent results. The charged hadron multiplicity density dN(ch)/d eta, evaluated at eta=0 for head-on collisions, is found to be 1612 +/- 55, where the uncertainty is dominated by systematic effects. Comparisons of these results to previous measurements and to various models are also presented.
Pseudorapidity Dependence Of The Anisotropic Flow Of Charged Particles In Pb Pb Collisions At Snn
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Author : Jaroslav Adam
language : en
Publisher:
Release Date : 2016
Pseudorapidity Dependence Of The Anisotropic Flow Of Charged Particles 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 2016 with categories.
Charged Particle Multiplicity Distributions Over Wide Pseudorapidity Range In Proton Proton And Proton Lead Collisions With Alice
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Author :
language : en
Publisher:
Release Date : 2015
Charged Particle Multiplicity Distributions Over Wide Pseudorapidity Range In Proton Proton And Proton Lead Collisions With Alice 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.