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

R. Aaij, B. Adeva, M. Adinolfi, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, A. Alfonso Albero, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, G. Andreassi, M. Andreotti & 31 others J. E. Andrews, R. B. Appleby, F. Archilli, P. d’Argent, J. Arnau Romeu, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, I. Babuschkin, S. Bachmann, J. J. Back, A. Badalov, C. Baesso, S. Baker, V. Balagura, W. Baldini, A. Baranov, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, F. Baryshnikov, V. Batozskaya, V. Battista, A. Bay, L. Beaucourt, J. Beddow, A. Vagner, The LHCb collaboration

Research output: Contribution to journalArticle

3 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 languageEnglish
Article number25
JournalJournal of High Energy Physics
Volume2017
Issue number12
DOIs
Publication statusPublished - 1 Dec 2017

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pions
collisions
charged particles
radii
protons
center of mass
signatures
momentum
augmentation
energy

Keywords

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

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., ... The LHCb collaboration (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), [25]. https://doi.org/10.1007/JHEP12(2017)025

Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at √s=7 TeV. / Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Alfonso Albero, A.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alves, A. A.; Amato, S.; Amerio, S.; Amhis, Y.; An, L.; Anderlini, L.; Andreassi, G.; Andreotti, M.; Andrews, J. E.; Appleby, R. B.; Archilli, F.; d’Argent, P.; Arnau Romeu, J.; Artamonov, A.; Artuso, M.; Aslanides, E.; Auriemma, G.; Baalouch, M.; Babuschkin, I.; Bachmann, S.; Back, J. J.; Badalov, A.; Baesso, C.; Baker, S.; Balagura, V.; Baldini, W.; Baranov, A.; Barlow, R. J.; Barschel, C.; Barsuk, S.; Barter, W.; Baryshnikov, F.; Batozskaya, V.; Battista, V.; Bay, A.; Beaucourt, L.; Beddow, J.; Vagner, A.; The LHCb collaboration.

In: Journal of High Energy Physics, Vol. 2017, No. 12, 25, 01.12.2017.

Research output: Contribution to journalArticle

Aaij, R, Adeva, B, Adinolfi, M, Ajaltouni, Z, Akar, S, Albrecht, J, Alessio, F, Alexander, M, Alfonso Albero, A, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves, AA, Amato, S, Amerio, S, Amhis, Y, An, L, Anderlini, L, Andreassi, G, Andreotti, M, Andrews, JE, Appleby, RB, Archilli, F, d’Argent, P, Arnau Romeu, J, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Baalouch, M, Babuschkin, I, Bachmann, S, Back, JJ, Badalov, A, Baesso, C, Baker, S, Balagura, V, Baldini, W, Baranov, A, Barlow, RJ, Barschel, C, Barsuk, S, Barter, W, Baryshnikov, F, Batozskaya, V, Battista, V, Bay, A, Beaucourt, L, Beddow, J, Vagner, A & The LHCb collaboration 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, vol. 2017, no. 12, 25. https://doi.org/10.1007/JHEP12(2017)025
Aaij, R. ; Adeva, B. ; Adinolfi, M. ; Ajaltouni, Z. ; Akar, S. ; Albrecht, J. ; Alessio, F. ; Alexander, M. ; Alfonso Albero, A. ; Ali, S. ; Alkhazov, G. ; Alvarez Cartelle, P. ; Alves, A. A. ; Amato, S. ; Amerio, S. ; Amhis, Y. ; An, L. ; Anderlini, L. ; Andreassi, G. ; Andreotti, M. ; Andrews, J. E. ; Appleby, R. B. ; Archilli, F. ; d’Argent, P. ; Arnau Romeu, J. ; Artamonov, A. ; Artuso, M. ; Aslanides, E. ; Auriemma, G. ; Baalouch, M. ; Babuschkin, I. ; Bachmann, S. ; Back, J. J. ; Badalov, A. ; Baesso, C. ; Baker, S. ; Balagura, V. ; Baldini, W. ; Baranov, A. ; Barlow, R. J. ; Barschel, C. ; Barsuk, S. ; Barter, W. ; Baryshnikov, F. ; Batozskaya, V. ; Battista, V. ; Bay, A. ; Beaucourt, L. ; Beddow, J. ; Vagner, A. ; The LHCb collaboration. / Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at √s=7 TeV. In: Journal of High Energy Physics. 2017 ; Vol. 2017, No. 12.
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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.",
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T1 - Bose-Einstein correlations of same-sign charged pions in the forward region in pp collisions at √s=7 TeV

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 - Beddow, J.

AU - Vagner, A.

AU - The LHCb collaboration

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

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U2 - 10.1007/JHEP12(2017)025

DO - 10.1007/JHEP12(2017)025

M3 - Article

VL - 2017

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1126-6708

IS - 12

M1 - 25

ER -