Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in p-Pb Collisions

(LHCb Collaboration)

doi:10.1103/PhysRevLett.131.042302

Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in p-Pb Collisions

(LHCb Collaboration)

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15 Citations (Scopus)

Résumé

The nuclear modification factor of neutral pions is measured in proton-lead collisions collected at a center-of-mass energy per nucleon of 8.16 TeV with the LHCb detector. The ?0 production cross section is measured differentially in transverse momentum (pT) for 1.5<pT<10.0 GeV and in center-of-mass pseudorapidity (?c.m.) regions 2.5<?c.m.<3.5 (forward) and -4.0<?c.m.<-3.0 (backward) defined relative to the proton beam direction. The forward measurement shows a sizable suppression of ?0 production, while the backward measurement shows the first evidence of ?0 enhancement in proton-lead collisions at the LHC. Together, these measurements provide precise constraints on models of nuclear structure and particle production in high-energy nuclear collisions. copy; 2023 CERN, for the LHCb Collaboration.

langue originale	Anglais
Numéro d'article	042302
journal	Physical Review Letters
Volume	131
Numéro de publication	4
Les DOIs	https://doi.org/10.1103/PhysRevLett.131.042302
état	Publié - 28 juil. 2023

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10.1103/PhysRevLett.131.042302

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@article{44e2a45946bd489789d8d09456f9e418,

title = "Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in p-Pb Collisions",

abstract = "The nuclear modification factor of neutral pions is measured in proton-lead collisions collected at a center-of-mass energy per nucleon of 8.16 TeV with the LHCb detector. The ?0 production cross section is measured differentially in transverse momentum (pT) for 1.5",

author = "\{(LHCb Collaboration)\} and R. Aaij and Abdelmotteleb, \{A. S.W.\} and \{Abellan Beteta\}, C. and F. Abudin{\'e}n and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and C. Agapopoulou and Aidala, \{C. A.\} and S. Aiola and Z. Ajaltouni and S. Akar and K. Akiba and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and Z. Aliouche and \{Alvarez Cartelle\}, P. and S. Amato and Amey, \{J. L.\} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and M. Andreotti and D. Ao and F. Archilli and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and M. Bachmayer and Back, \{J. J.\} and A. Bailly-Reyre and \{Baladron Rodriguez\}, P. and V. Balagura and W. Baldini and \{Baptista De Souza Leite\}, J. and M. Barbetti and Barlow, \{R. J.\} and S. Barsuk and F. Fleuret and E. Maurice and Niel, \{E. M.\}",

year = "2023",

month = jul,

day = "28",

doi = "10.1103/PhysRevLett.131.042302",

language = "English",

volume = "131",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "4",

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TY - JOUR

T1 - Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in p-Pb Collisions

AU - (LHCb Collaboration)

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellan Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Afsharnia, H.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Aiola, S.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Akiba, K.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alvarez Cartelle, P.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andersson, M.

AU - Andreianov, A.

AU - Andreotti, M.

AU - Ao, D.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Bailly-Reyre, A.

AU - Baladron Rodriguez, P.

AU - Balagura, V.

AU - Baldini, W.

AU - Baptista De Souza Leite, J.

AU - Barbetti, M.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Fleuret, F.

AU - Maurice, E.

AU - Niel, E. M.

PY - 2023/7/28

Y1 - 2023/7/28

N2 - The nuclear modification factor of neutral pions is measured in proton-lead collisions collected at a center-of-mass energy per nucleon of 8.16 TeV with the LHCb detector. The ?0 production cross section is measured differentially in transverse momentum (pT) for 1.5

AB - The nuclear modification factor of neutral pions is measured in proton-lead collisions collected at a center-of-mass energy per nucleon of 8.16 TeV with the LHCb detector. The ?0 production cross section is measured differentially in transverse momentum (pT) for 1.5

U2 - 10.1103/PhysRevLett.131.042302

DO - 10.1103/PhysRevLett.131.042302

M3 - Article

AN - SCOPUS:85167913161

SN - 0031-9007

VL - 131

JO - Physical Review Letters

JF - Physical Review Letters

IS - 4

M1 - 042302

ER -

Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in p-Pb Collisions

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