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

Allbrooke, Benedict, Asquith, Lily, Cerri, Alessandro, Chavez Barajas, Carlos, De Santo, Antonella, Potter, Tina, Salvatore, Fabrizio, Suruliz, Kerim, Sutton, Mark, Vivarelli, Iacopo, Santoyo Castillo, Itzebelt and The ATLAS Collaboration, et al (2015) Two-particle BoseEinstein correlations in pp collisions at √s = 0.9 and 7 TeV measured with the ATLAS detector. European Physical Journal C (The), C75 (10). p. 466. ISSN 1434-6044

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Abstract

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 |η| <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.

Item Type: Article
Keywords: Bose–Einstein correlations, high-multiplicity events, pp-interactions, LHC
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Richard Chambers
Date Deposited: 20 Jun 2016 10:33
Last Modified: 22 Mar 2017 12:35
URI: http://sro.sussex.ac.uk/id/eprint/61564

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