Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at root s=7 TeV
Bose-Einstein correlations of same-sign charged pions, produced in proton-proton collisions at a 7TeV 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.
JHEP12(2017)025.pdf
Publisher's version
openaccess
CC BY
572.46 KB
Adobe PDF
77a27815747838c1a6ff9ac35cef3a25
10-1007_JHEP12_2017_025.pdf
Publisher's version
openaccess
CC BY
572.46 KB
Adobe PDF
77a27815747838c1a6ff9ac35cef3a25