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; 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; R. J. Barlow; W. Barter; A. Bitadze; S. Borghi; C. Burr; L. Capriotti; S. Chen; S. De Capua; M. Gersabeck; J. Harrison; C. Hombach; S. Klaver; G. Lafferty; K. Maguire; A. McNab; C. Parkes; P. Rodriguez Perez; G. Sarpis; 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

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. AndreottiJ. 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, R. J. Barlow, W. Barter, A. Bitadze, S. Borghi, C. Burr, L. Capriotti, S. Chen, S. De Capua, M. Gersabeck, J. Harrison, C. Hombach, S. Klaver, G. Lafferty, K. Maguire, A. McNab, C. Parkes, P. Rodriguez Perez, G. Sarpis, LHCb Collaboration

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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.

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 - 6 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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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., ... 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), Article 25. https://doi.org/10.1007/JHEP12(2017)025

@article{9379cea221884001a77f178fd511d93c,

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 = "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 Barlow, {R. J.} and W. Barter and A. Bitadze and S. Borghi and C. Burr and L. Capriotti and S. Chen and {De Capua}, S. and M. Gersabeck and J. Harrison and C. Hombach and S. Klaver and G. Lafferty and K. Maguire and A. McNab and C. Parkes and {Rodriguez Perez}, P. and G. Sarpis and {LHCb Collaboration}",

year = "2017",

month = dec,

day = "6",

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

language = "English",

volume = "2017",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Nature",

number = "12",

}

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, Barlow, RJ, Barter, W, Bitadze, A, Borghi, S, Burr, C, Capriotti, L, Chen, S, De Capua, S , Gersabeck, M, Harrison, J, Hombach, C, Klaver, S, Lafferty, G, Maguire, K, McNab, A, Parkes, C, Rodriguez Perez, P, Sarpis, G & 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

TY - JOUR

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 - Barlow, R. J.

AU - Barter, W.

AU - Bitadze, A.

AU - Borghi, S.

AU - Burr, C.

AU - Capriotti, L.

AU - Chen, S.

AU - De Capua, S.

AU - Gersabeck, M.

AU - Harrison, J.

AU - Hombach, C.

AU - Klaver, S.

AU - Lafferty, G.

AU - Maguire, K.

AU - McNab, A.

AU - Parkes, C.

AU - Rodriguez Perez, P.

AU - Sarpis, G.

AU - LHCb Collaboration

PY - 2017/12/6

Y1 - 2017/12/6

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

UR - http://www.scopus.com/inward/record.url?scp=85037713665&partnerID=8YFLogxK

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

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