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

The LHCb collaboration

doi:10.1007/JHEP12(2017)025

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

The LHCb collaboration

European Organization for Nuclear Research
University Santiago de Compostela
University of Bristol
Clermont-Auvergne University
University of Cincinnati
University of Dortmund
SUPA
University of Glasgow
University of Barcelona
Science Park 105
Petersburg Nuclear Physics Institute (PNPI)
Imperial College London
Instituto de Biofisica da UFRJ
INFN
Laboratoire de l'Accélérateur Linéaire
Center for High Energy Physics
Tsinghua University
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
Institute of Physics
ENAC-IIC-GEL
Sezione INFN di Ferrara
University of Ferrara
University of Maryland, College Park
School of Physics and Astronomy
University of Manchester
University of Heidelberg
Aix Marseille Université
Kurchatov Institute
Syracuse University
Sezione di Roma
Department of Physics
University of Warwick
Universitat Ramon LLull - CSIC
Pontifícia Universidade Católica do Rio de Janeiro
Yandex School of Data Analysis
Institute for Theoretical and Experimental Physics
National Centre for Nuclear Research (NCBJ)
Université Savoie Mont Blanc

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

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.

Original language	English
Article number	25
Journal	Journal of High Energy Physics
Volume	2017
Issue number	12
DOIs	https://doi.org/10.1007/JHEP12(2017)025
Publication status	Published - 1 Dec 2017

Keywords

Hadron-Hadron scattering (experiments)
Particle correlations and fluctuations
QCD

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10.1007/JHEP12(2017)025

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@article{7d1fbbcd14654f55bc7466b799dd6248,

title = "Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at √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.",

keywords = "Hadron-Hadron scattering (experiments), Particle correlations and fluctuations, QCD",

author = "\{The LHCb collaboration\} and R. Aaij and B. Adeva and M. Adinolfi and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and S. Ali and G. Alkhazov and \{Alvarez Cartelle\}, P. and Alves, \{A. A.\} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, \{J. E.\} and Appleby, \{R. B.\} and F. Archilli and P. d{\textquoteright}Argent and \{Arnau Romeu\}, J. and A. Artamonov and M. Artuso and E. Aslanides and G. Auriemma and M. Baalouch and I. Babuschkin and S. Bachmann and Back, \{J. J.\} and A. Badalov and C. Baesso and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, \{R. J.\} and C. Barschel and S. Barsuk and W. Barter and F. Baryshnikov and V. Batozskaya and V. Battista and A. Bay and L. Beaucourt and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2017, The Author(s).",

year = "2017",

month = dec,

day = "1",

doi = "10.1007/JHEP12(2017)025",

language = "English",

volume = "2017",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

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number = "12",

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TY - JOUR

T1 - Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at √s=7 TeV

AU - The LHCb collaboration

AU - Aaij, R.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Archilli, F.

AU - d’Argent, P.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Auriemma, G.

AU - Baalouch, M.

AU - Babuschkin, I.

AU - Bachmann, S.

AU - Back, J. J.

AU - Badalov, A.

AU - Baesso, C.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barschel, C.

AU - Barsuk, S.

AU - Barter, W.

AU - Baryshnikov, F.

AU - Batozskaya, V.

AU - Battista, V.

AU - Bay, A.

AU - Beaucourt, L.

AU - Fleuret, F.

AU - Maurice, E.

PY - 2017/12/1

Y1 - 2017/12/1

N2 - 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.

AB - 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.

KW - Hadron-Hadron scattering (experiments)

KW - Particle correlations and fluctuations

KW - QCD

U2 - 10.1007/JHEP12(2017)025

DO - 10.1007/JHEP12(2017)025

M3 - Article

AN - SCOPUS:85037713665

SN - 1126-6708

VL - 2017

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 12

M1 - 25

ER -

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

Abstract

Keywords

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