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Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at root s=7 TeV

Abstract:
Bose-Einstein correlations of same-sign charged pions, produced in proton-proton collisions at a 7 TeV centre-of-mass energy, are studied using a data sample collected by the LHCb experiment. The signature for Bose-Einstein correlations is observed in the form of an enhancement of pairs of like-sign charged pions with small four-momentum difference squared. The charged-particle multiplicity dependence of the Bose-Einstein correlation parameters describing the correlation strength and the size of the emitting source is investigated, determining both the correlation radius and the chaoticity parameter. The measured correlation radius is found to increase as a function of increasing charged-particle multiplicity, while the chaoticity parameter is seen to decrease.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1007/JHEP12(2017)025

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Particle Physics
Role:
Author
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics; Particle Physics
Role:
Author



Publisher:
Springer
Journal:
Journal of High Energy Physics More from this journal
Volume:
2017
Issue:
12
Pages:
025
Publication date:
2017-12-01
Acceptance date:
2017-11-28
DOI:
EISSN:
1029-8479
ISSN:
1029-8479


Keywords:
Pubs id:
pubs:726146
UUID:
uuid:ad0bf783-a434-4245-8dfc-2b7b5072d2f5
Local pid:
pubs:726146
Source identifiers:
726146
Deposit date:
2018-02-23

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