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Bose–Einstein Correlations in pp and pPb Collisions at LHCb

Institute of Nuclear Physics Polish Academy of Sciences, PL-31342 Krakow, Poland
On behalf of the LHCb Collaboration.
Presented at the 18. Zimanyi School, Budapest 2018.
Universe 2019, 5(4), 95; https://doi.org/10.3390/universe5040095
Received: 1 April 2019 / Revised: 20 April 2019 / Accepted: 22 April 2019 / Published: 25 April 2019
(This article belongs to the Special Issue The Zimányi School and Analytic Hydrodynamics in High Energy Physics)
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Abstract

Bose–Einstein correlations for same-sign charged pions from proton–proton collisions at s = 7 TeV are studied by the Large Hadron Collider beauty (LHCb) experiment. Correlation radii and chaoticity parameters are determined for different regions of charged-particle multiplicity using a double-ratio technique and a Levy parametrization of the correlation function. The correlation radius increases with the charged-particle multiplicity, while the chaoticity parameter decreases, which is consistent with observations from other experiments. A similar study for proton-lead collisions at s N N = 5.02 TeV is proposed. These results can give valuable input for the theoretical models that describe the evolution of the particle source, probing both its potential dependence on pseudorapidity region and differences between proton–proton and proton–lead systems. View Full-Text
Keywords: femtoscopy; small systems; Bose-Einstein correlations; HBT femtoscopy; small systems; Bose-Einstein correlations; HBT
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Malecki, B. Bose–Einstein Correlations in pp and pPb Collisions at LHCb. Universe 2019, 5, 95.

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