Publication: Fragmentation of J/psi in jets in pp collisions at root s=5.02 TeV Batoul Diab for the CMS collaboration
Дата
2019
Авторы
Diab, B.
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Matveev, V.
Chadeeva, M.
Parygin, P.
Philippov, D.
Polikarpov, S.
Popova, E.
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Аннотация
The fragmentation of jets containing a J/psi meson is studied in root s = 5.02 TeV pp data using an integrated luminosity of L = 27.39 pb(-1). The fraction of the jet transverse momentum p(Tjet) carried by the J/psi is measured for prompt J/psi and J/psi coming from b hadron decays, named nonprompt. Whereas the fragmentation function of nonprompt J/psi is well-modeled by simulations using a Monte Carlo generator, the prompt J/psi are found to be accompanied by a larger level of jet activity. The fraction of J/psi mesons that are produced inside a jet is also reported, and found to be larger in data than in simulation, for both prompt and nonprompt J/psi.
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Fragmentation of J/psi in jets in pp collisions at root s=5.02 TeV Batoul Diab for the CMS collaboration / Diab, B [et al.] // NUCLEAR PHYSICS A. - 2019. - 982. - P. 186-188. - 10.1016/j.nuclphysa.2018.09.049