TY - JOUR
T1 - Open charm production and asymmetry in pNe collisions at √sNN=68.5GeV
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 - Adlarson, P.
AU - Afsharnia, H.
AU - Agapopoulou, C.
AU - Aidala, C. A.
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 - Amalric, R.
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 - Andreou, D.
AU - Ao, D.
AU - Archilli, F.
AU - Artamonov, A.
AU - Artuso, M.
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 - Barter, W.
AU - Milanes, D. A.
N1 - Publisher Copyright:
© 2023, The Author(s).
PY - 2023/6
Y1 - 2023/6
N2 - A measurement of D meson production by the LHCb experiment in its fixed-target configuration is presented. The production of D mesons is studied with a beam of 2.5 TeV protons colliding on a gaseous neon target at rest, corresponding to a nucleon–nucleon centre-of-mass energy of sNN=68.5GeV . The sum of the D and D¯ production cross-section in pNe collisions in the centre-of-mass rapidity range y⋆∈ [- 2.29 , 0] is found to be σD0y⋆∈[-2.29,0]=48.2±0.3±4.5μb/nucleon where the first uncertainty is statistical and the second is systematic. The D- D¯ production asymmetry is also evaluated and suggests a trend towards negative values at large negative y⋆ . The considered models do not account precisely for all the features observed in the LHCb data, but theoretical predictions including 1 % intrinsic charm and 10 % recombination contributions better describe the data than the other models considered.
AB - A measurement of D meson production by the LHCb experiment in its fixed-target configuration is presented. The production of D mesons is studied with a beam of 2.5 TeV protons colliding on a gaseous neon target at rest, corresponding to a nucleon–nucleon centre-of-mass energy of sNN=68.5GeV . The sum of the D and D¯ production cross-section in pNe collisions in the centre-of-mass rapidity range y⋆∈ [- 2.29 , 0] is found to be σD0y⋆∈[-2.29,0]=48.2±0.3±4.5μb/nucleon where the first uncertainty is statistical and the second is systematic. The D- D¯ production asymmetry is also evaluated and suggests a trend towards negative values at large negative y⋆ . The considered models do not account precisely for all the features observed in the LHCb data, but theoretical predictions including 1 % intrinsic charm and 10 % recombination contributions better describe the data than the other models considered.
UR - http://www.scopus.com/inward/record.url?scp=85163757130&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-023-11641-5
DO - 10.1140/epjc/s10052-023-11641-5
M3 - Article
AN - SCOPUS:85163757130
SN - 1434-6044
VL - 83
JO - European Physical Journal C
JF - European Physical Journal C
IS - 6
M1 - 541
ER -