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.

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2017). Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at √s=7 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2017(12) [10.1007/JHEP12(2017)025].

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

Belloli, N.;Borgheresi, A.;Borsato, M.;Calvi, M.;Carniti, P.;Cassina, L.;Fazzini, D.;Gotti, C.
;
Grillo, L.;Martinelli, M.;Matteuzzi, C.;Petruzzo, M.;
2017

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.
Articolo in rivista - Articolo scientifico
Hadron-Hadron scattering (experiments); Particle correlations and fluctuations; QCD; Nuclear and High Energy Physics
English
2017
2017
12
25
open
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2017). Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at √s=7 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 2017(12) [10.1007/JHEP12(2017)025].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/181624
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