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  4. Bose-Einstein correlations in $pp, p\mathrm{Pb}$, and PbPb collisions at $\sqrt{{s}_{NN}}=0.9-7$ TeV
 
research article

Bose-Einstein correlations in $pp, p\mathrm{Pb}$, and PbPb collisions at $\sqrt{{s}_{NN}}=0.9-7$ TeV

Sirunyan, Albert M
•
Tumasyan, Armen
•
Adam, Wolfgang
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June 15, 2018
Physical Review C

Quantum-statistical (Bose-Einstein) two-particle correlations are measured in pp collisions at s=0.9, 2.76, and 7 TeV, as well as in pPb and peripheral PbPb collisions at nucleon-nucleon center-of-mass energies of 5.02 and 2.76 TeV, respectively, using the CMS detector at the Large Hadron Collider. Separate analyses are performed for same-sign unidentified charged particles as well as for same-sign pions and kaons identified via their energy loss in the silicon tracker. The characteristics of the one-, two-, and three-dimensional correlation functions are studied as functions of the pair average transverse momentum (kT) and the charged-particle multiplicity in the event. For all systems, the extracted correlation radii steadily increase with the event multiplicity, and decrease with increasing kT. The radii are in the range 1–5 fm, the largest values corresponding to very high multiplicity pPb interactions and to peripheral PbPb collisions with multiplicities similar to those seen in pPb data. It is also observed that the dependencies of the radii on multiplicity and kT largely factorize. At the same multiplicity, the radii are relatively independent of the colliding system and center-of-mass energy.

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Type
research article
DOI
10.1103/PhysRevC.97.064912
ArXiv ID

1712.07198

Author(s)
Sirunyan, Albert M
Tumasyan, Armen
Adam, Wolfgang
Ambrogi, Federico
Asilar, Ece
Bergauer, Thomas
Brandstetter, Johannes
Brondolin, Erica
Dragicevic, Marko
Erö, Janos
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Date Issued

2018-06-15

Published in
Physical Review C
Volume

97

Issue

6

Article Number

064912

Subjects

p nucleus: interaction

•

heavy ion: scattering

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lead

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charged particle: multiplicity

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multiplicity: high

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correlation: Bose-Einstein

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correlation: two-particle

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p p: scattering

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dimension: 1

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dimension: 2

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dimension: 3

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CERN LHC Coll

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peripheral

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same sign

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correlation function

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transverse momentum dependence

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multiplicity: dependence

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energy dependence

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tracking detector

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statistical

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energy loss

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silicon

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CMS

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experimental results

•

900 GeV-cms2760 GeV-cms7000 GeV-cms2760 GeV-cms/nucleon5020 GeV-cms/nucleon

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LPHE  
Available on Infoscience
February 17, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/166250
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