Addendum Centrality Dependence Of High Pt D Meson Suppression In Pb Pb Collisions At Snn

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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.

Strange And Non Strange D Meson Production In Pp P Pb And Pb Pb Collisions With Alice At The Lhc

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Author : Fabrizio Grosa
language : en
Publisher: Springer Nature
Release Date : 2021-04-17

Strange And Non Strange D Meson Production In Pp P Pb And Pb Pb Collisions With Alice At The Lhc written by Fabrizio Grosa and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-04-17 with Science categories.

This thesis provides a comprehensive view of the physics of charmed hadrons in high-energy proton-proton and heavy-ion collisions. Given their large masses, charm quarks are produced in the early stage of a heavy-ion collision and they subsequently experience the full system evolution probing the colour-deconfined medium called quark-gluon plasma (QGP) created in such collisions. In this thesis, the mechanisms of charm-quark in-medium energy loss and hadronisation are discussed via the measurements of the production of charm mesons with (Ds+) and without (D+) strange-quark content in different colliding systems, using data collected by the ALICE experiment at the CERN LHC. The participation of the charm quark and its possible thermalisation in the QGP are studied via measurements of azimuthal anisotropies in the production of D+ mesons. Finally, the prospects for future measurements with the upgraded ALICE experimental apparatus and with more refined machine learning techniques are presented.

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

Measurement Of D0 D D And D S Production In Pb Pb Collisions At Snn

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Author : Shreyasi Acharya
language : en
Publisher:
Release Date : 2018

Measurement Of D0 D D And D S Production In Pb 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 2018 with categories.

We report measurements of the production of prompt D0, D+, D*+ and D+s mesons in Pb-Pb collisions at the centre-of-mass energy per nucleon-nucleon pair sNN---√=5.02 TeV, in the centrality classes 0-10%, 30-50% and 60-80%. The D-meson production yields are measured at mid-rapidity (|y| 0.5) as a function of transverse momentum (pT). The pT intervals covered in central collisions are: 1

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.

Transverse Momentum And Event Shape Dependence Of D Meson Flow Harmonics In Pb Pb Collisions At Snn

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Author : Shreyasi Acharya
language : en
Publisher:
Release Date : 2020

Transverse Momentum And Event Shape Dependence Of D Meson Flow Harmonics In Pb 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 2020 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.

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.

Centrality Dependence Of Charged Particle Production At Large Transverse Momentum In Pb Pb Collisions At Snn

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Author : Betty Abelev
language : en
Publisher:
Release Date : 2013

Centrality Dependence Of Charged Particle Production At Large Transverse Momentum In Pb Pb Collisions At Snn written by Betty Abelev and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.

Phenix Results On Centrality Dependence Of Yields And Correlations In D Plus Au Collisions At Root S Nn

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Author :
language : en
Publisher:
Release Date : 2016

Phenix Results On Centrality Dependence Of Yields And Correlations In D Plus Au Collisions At Root 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.

PHENIX has measured the transverse momentum (pT) spectra and two particle angular correlations for high pT particles in d+Au collisions at psNN=200 GeV using the RHIC Year-2008 run data. The azimuthal angle correlations for two particles with a large rapidity gap exhibit a ridge-like structure. Using the pi-0s reconstructed in the EMCal, we have successfully extended the pT reach of the correlation up to 8 GeV/c. We find that the azimuthal anisotropy of hadrons found at low pT persists up to 6 GeV/c with a significant centrality and pT dependence, similar to what was observed in A+A collisions.