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Abstract
Jets containing a prompt J/ψ meson are studied in lead-lead collisions at a nucleon-nucleon center-ofmass energy of 5.02 TeV, using the CMS detector at the LHC. Jets are selected to be in the transverse
momentum range of 30 < pT < 40 GeV. The J/ψ yield in these jets is evaluated as a function of the jet
fragmentation variable z, the ratio of the J/ψ pT to the jet pT. The nuclear modification factor, RAA,
is then derived by comparing the yield in lead-lead collisions to the corresponding expectation based
on proton-proton data, at the same nucleon-nucleon center-of-mass energy. The suppression of the J/ψ
yield shows a dependence on z, indicating that the interaction of the J/ψ with the quark-gluon plasma
formed in heavy ion collisions depends on the fragmentation that gives rise to the J/ψ meson.
momentum range of 30 < pT < 40 GeV. The J/ψ yield in these jets is evaluated as a function of the jet
fragmentation variable z, the ratio of the J/ψ pT to the jet pT. The nuclear modification factor, RAA,
is then derived by comparing the yield in lead-lead collisions to the corresponding expectation based
on proton-proton data, at the same nucleon-nucleon center-of-mass energy. The suppression of the J/ψ
yield shows a dependence on z, indicating that the interaction of the J/ψ with the quark-gluon plasma
formed in heavy ion collisions depends on the fragmentation that gives rise to the J/ψ meson.
Datum van beschikbaarheid | 20 nov 2021 |
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Uitgever | HEPData |
Format
- Format
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iBOF/23/074: Ontsluiten van de charm-Higgs koppeling bij de LHC
D'Hondt, J., Lowette, S., Van Mechelen, P. & Dobur, D.
1/01/23 → 31/12/26
Project: Fundamenteel
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Onderzoekersoutput
- 1 Article
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Fragmentation of jets containing a prompt J/ψ meson in PbPb and pp collisions at s NN =5.02TeV
Collaboration, CMS., Blekman, F., Bols, E. S., Chhibra, S. S., D'Hondt, J., De Clercq, J. T., Lontkovskyi, D., Lowette, S., Marchesini, I., Moortgat, S., Morton, A., Python, Q., Tavernier, S. & Van Doninck, W., 10 feb 2022, In: Phys. Lett. B. 825, 2022, 25 blz., 136842.Onderzoeksoutput: Article › peer review
Open AccessBestand10 Citaten (Scopus)71 Downloads (Pure)