TY - JOUR
T1 - Measurement of associated J/?-?(2S) production cross-section in pp collisions at (Formula presented.) TeV
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 - Albicocco, P.
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 - Andreola, P.
AU - Andreotti, M.
AU - Andreou, D.
AU - Anelli, A.
AU - Ao, D.
AU - Archilli, F.
AU - Arguedas Cuendis, S.
AU - Artamonov, A.
AU - Artuso, M.
AU - Aslanides, E.
AU - Atzeni, M.
AU - Audurier, B.
AU - Bacher, D.
AU - Bachiller Perea, I.
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 - LHCb collaboration
AU - da silva Bolognani, Carolina
AU - Cámpora Pérez, Daniel Hugo
AU - de Vries, Jacco
AU - Lucio Martinez, Miriam
AU - Merk, Marcel
AU - Nicotra, Davide
AU - Onderwater, Gerco
AU - Pawley, Chris
AU - Vos, Keri
N1 - Publisher Copyright:
© The Author(s) 2024.
PY - 2024/5/1
Y1 - 2024/5/1
N2 - The cross-section of associated J/?-?(2S) production in proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV is measured using a data sample corresponding to an integrated luminosity of 4.2 fb-1, collected by the LHCb experiment. The measurement is performed for both J/? and ?(2S) mesons having transverse momentum pT< 14 GeV/c and rapidity 2.0 < y < 4.5, assuming negligible polarisation of the J/? and ?(2S) mesons. The production cross-section is measured to be 4.5 ± 0.7 ± 0.3 nb, where the first uncertainty is statistical and the second systematic. The differential cross-sections are measured as functions of several kinematic variables of the J/?-?(2S) candidates. The results are combined with a measurement of J/?-J/? production, giving a cross-section ratio between J/?-?(2S) and J/?-J/? production of 0.274 ± 0.044 ± 0.008, where the first uncertainty is statistical and the second systematic.
AB - The cross-section of associated J/?-?(2S) production in proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV is measured using a data sample corresponding to an integrated luminosity of 4.2 fb-1, collected by the LHCb experiment. The measurement is performed for both J/? and ?(2S) mesons having transverse momentum pT< 14 GeV/c and rapidity 2.0 < y < 4.5, assuming negligible polarisation of the J/? and ?(2S) mesons. The production cross-section is measured to be 4.5 ± 0.7 ± 0.3 nb, where the first uncertainty is statistical and the second systematic. The differential cross-sections are measured as functions of several kinematic variables of the J/?-?(2S) candidates. The results are combined with a measurement of J/?-J/? production, giving a cross-section ratio between J/?-?(2S) and J/?-J/? production of 0.274 ± 0.044 ± 0.008, where the first uncertainty is statistical and the second systematic.
KW - Hadron-Hadron Scattering
KW - Multi-Parton Interactions
KW - QCD
KW - Quarkonium
U2 - 10.1007/JHEP05(2024)259
DO - 10.1007/JHEP05(2024)259
M3 - Article
SN - 1029-8479
VL - 2024
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 5
M1 - 259
ER -