Research output: Contribution to journal › Article › peer-review
Study of J/ψ meson production inside jets in pp collisions at s=8TeV. / The CMS collaboration.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 804, 135409, 10.05.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Study of J/ψ meson production inside jets in pp collisions at s=8TeV
AU - The CMS collaboration
AU - Sirunyan, A. M.
AU - Tumasyan, A.
AU - Adam, W.
AU - Ambrogi, F.
AU - Bergauer, T.
AU - Brandstetter, J.
AU - Dragicevic, M.
AU - Erö, J.
AU - Escalante Del Valle, A.
AU - Flechl, M.
AU - Frühwirth, R.
AU - Jeitler, M.
AU - Krammer, N.
AU - Krätschmer, I.
AU - Liko, D.
AU - Madlener, T.
AU - Mikulec, I.
AU - Rad, N.
AU - Schieck, J.
AU - Schöfbeck, R.
AU - Spanring, M.
AU - Spitzbart, D.
AU - Waltenberger, W.
AU - Wulz, C. E.
AU - Zarucki, M.
AU - Drugakov, V.
AU - Mossolov, V.
AU - Suarez Gonzalez, J.
AU - Darwish, M. R.
AU - De Wolf, E. A.
AU - Di Croce, D.
AU - Janssen, X.
AU - Lelek, A.
AU - Pieters, M.
AU - Rejeb Sfar, H.
AU - Van Haevermaet, H.
AU - Van Mechelen, P.
AU - Van Putte, S.
AU - Van Remortel, N.
AU - Blekman, F.
AU - Bols, E. S.
AU - Chhibra, S. S.
AU - D'Hondt, J.
AU - De Clercq, J.
AU - Lontkovskyi, D.
AU - Barnyakov, A.
AU - Blinov, V.
AU - Dimova, T.
AU - Kardapoltsev, L.
AU - Skovpen, Y.
N1 - Publisher Copyright: © 2020 Elsevier B.V.
PY - 2020/5/10
Y1 - 2020/5/10
N2 - A study of the production of prompt J/ψ mesons contained in jets in proton-proton collisions at s=8TeV is presented. The analysis is based on data corresponding to an integrated luminosity of 19.1 fb−1 collected with the CMS detector at the LHC. For events with at least one observed jet, the angular separation between the J/ψ meson and the jet is used to test whether the J/ψ meson is part of the jet. The analysis shows that most prompt J/ψ mesons having energy above 15 GeV and rapidity |y|<1 are contained in jets with pseudorapidity |ηjet|<1. The differential distributions of the probability to have a J/ψ meson contained in a jet as a function of jet energy for a fixed J/ψ energy fraction are compared to a theoretical model using the fragmenting jet function approach. The data agree best with fragmenting jet function calculations that use a long-distance matrix element parameter set in which prompt J/ψ mesons are predicted to be unpolarized. This technique demonstrates a new way to test predictions for prompt J/ψ production using nonrelativistic quantum chromodynamics.
AB - A study of the production of prompt J/ψ mesons contained in jets in proton-proton collisions at s=8TeV is presented. The analysis is based on data corresponding to an integrated luminosity of 19.1 fb−1 collected with the CMS detector at the LHC. For events with at least one observed jet, the angular separation between the J/ψ meson and the jet is used to test whether the J/ψ meson is part of the jet. The analysis shows that most prompt J/ψ mesons having energy above 15 GeV and rapidity |y|<1 are contained in jets with pseudorapidity |ηjet|<1. The differential distributions of the probability to have a J/ψ meson contained in a jet as a function of jet energy for a fixed J/ψ energy fraction are compared to a theoretical model using the fragmenting jet function approach. The data agree best with fragmenting jet function calculations that use a long-distance matrix element parameter set in which prompt J/ψ mesons are predicted to be unpolarized. This technique demonstrates a new way to test predictions for prompt J/ψ production using nonrelativistic quantum chromodynamics.
KW - CMS
KW - J/psi Mesons
KW - Jets
UR - http://www.scopus.com/inward/record.url?scp=85082850250&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2020.135409
DO - 10.1016/j.physletb.2020.135409
M3 - Article
AN - SCOPUS:85082850250
VL - 804
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
M1 - 135409
ER -
ID: 23950351