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Two-particle BoseEinstein correlations in pp collisions at vs = 0.9 and 7 TeV measured with the ATLAS detector

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posted on 2023-06-09, 01:44 authored by Benedict AllbrookeBenedict Allbrooke, Lily AsquithLily Asquith, Alessandro CerriAlessandro Cerri, Carlos Chavez Barajas, Antonella De SantoAntonella De Santo, Tina Potter, Fabrizio SalvatoreFabrizio Salvatore, Kerim Suruliz, Mark SuttonMark Sutton, Iacopo Vivarelli, Itzebelt Santoyo Castillo, et al The ATLAS Collaboration
The paper presents studies of Bose–Einstein Correlations (BEC) for pairs of like-sign charged particles measured in the kinematic range pT > 100 MeV and |?| <2.5 in proton–proton collisions at centre-of-mass energies of 0.9 and 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. The integrated luminosities are approximately 7 µb-1, 190 µb-1 and 12.4 nb-1 for 0.9 TeV,7 TeV minimum-bias and 7 TeV high-multiplicity data samples, respectively. The multiplicity dependence of the BEC parameters characterizing the correlation strength and the correlation source size are investigated for charged-particle multiplicities of up to 240. A saturation effect in the multiplicity dependence of the correlation source size parameter is observed using the high-multiplicity 7 TeV data sample. The dependence of the BEC parameters on the average transverse momentum of the particle pair is also investigated.

History

Publication status

  • Published

File Version

  • Published version

Journal

European Physical Journal C: Particles and Fields

ISSN

1434-6044

Publisher

EDP Sciences

Issue

10

Volume

C75

Page range

466

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2016-06-20

First Open Access (FOA) Date

2016-06-20

First Compliant Deposit (FCD) Date

2016-06-17

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