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Recent results of charmonium and bottomonia in pp, pPb, and PbPb collisions with the CMS detector

<!--HTML-->We present the recent results of J/$\psi$-jet correlation and the cross-sections Y(nS) states in heavy-ion collisions, using the data collected by the CMS experiment at $\sqrt{s_{\rm{NN}}}=5.02$~TeV. J/$\psi$ production has long been known to be modified in heavy-ion collisions, vi...

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Autor principal: Kim, Yongsun
Lenguaje:eng
Publicado: 2021
Materias:
Acceso en línea:http://cds.cern.ch/record/2749313
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author Kim, Yongsun
author_facet Kim, Yongsun
author_sort Kim, Yongsun
collection CERN
description <!--HTML-->We present the recent results of J/$\psi$-jet correlation and the cross-sections Y(nS) states in heavy-ion collisions, using the data collected by the CMS experiment at $\sqrt{s_{\rm{NN}}}=5.02$~TeV. J/$\psi$ production has long been known to be modified in heavy-ion collisions, via, among many, the Debye screening effect. Indirect evidence of, in particular, the non-vanishing $v_{2}$ of J/$\psi$ at large transverse momentum, however, suggests that jet quenching may also play an important role in J/$\psi$ suppression. We present the final results of reconstructed J/$\psi$-jets in heavy-ion collisions. We measure the jet fragmentation function of jets containing a J/$\psi$ meson, to study the dependence of quenching effects on the degree of associated hadro-production inside the jet. We also present the production cross-sections of Y(1S), Y(2S), and Y(3S) states pPb collision, and their nuclear modification factors (RpPb). The result shows that Y states are suppressed in pPb collision compared to pp collision, while less pronounced than it is in the lead-lead collision. Sequential ordering of the Y RpPb, with Y(1S) least suppressed and Y(3S) most suppressed, indicates the final-state modification of Y states in pPb collisions. Predictions using the final-state comover interaction model, which incorporates sequential suppression of bottomonia in pPb collisions, are in better agreement with the measured RpPb versus rapidity than predictions using initial-state modification models.
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spelling cern-27493132022-11-02T22:26:19Zhttp://cds.cern.ch/record/2749313engKim, YongsunRecent results of charmonium and bottomonia in pp, pPb, and PbPb collisions with the CMS detectorInitial Stages 2021Conferences<!--HTML-->We present the recent results of J/$\psi$-jet correlation and the cross-sections Y(nS) states in heavy-ion collisions, using the data collected by the CMS experiment at $\sqrt{s_{\rm{NN}}}=5.02$~TeV. J/$\psi$ production has long been known to be modified in heavy-ion collisions, via, among many, the Debye screening effect. Indirect evidence of, in particular, the non-vanishing $v_{2}$ of J/$\psi$ at large transverse momentum, however, suggests that jet quenching may also play an important role in J/$\psi$ suppression. We present the final results of reconstructed J/$\psi$-jets in heavy-ion collisions. We measure the jet fragmentation function of jets containing a J/$\psi$ meson, to study the dependence of quenching effects on the degree of associated hadro-production inside the jet. We also present the production cross-sections of Y(1S), Y(2S), and Y(3S) states pPb collision, and their nuclear modification factors (RpPb). The result shows that Y states are suppressed in pPb collision compared to pp collision, while less pronounced than it is in the lead-lead collision. Sequential ordering of the Y RpPb, with Y(1S) least suppressed and Y(3S) most suppressed, indicates the final-state modification of Y states in pPb collisions. Predictions using the final-state comover interaction model, which incorporates sequential suppression of bottomonia in pPb collisions, are in better agreement with the measured RpPb versus rapidity than predictions using initial-state modification models.oai:cds.cern.ch:27493132021
spellingShingle Conferences
Kim, Yongsun
Recent results of charmonium and bottomonia in pp, pPb, and PbPb collisions with the CMS detector
title Recent results of charmonium and bottomonia in pp, pPb, and PbPb collisions with the CMS detector
title_full Recent results of charmonium and bottomonia in pp, pPb, and PbPb collisions with the CMS detector
title_fullStr Recent results of charmonium and bottomonia in pp, pPb, and PbPb collisions with the CMS detector
title_full_unstemmed Recent results of charmonium and bottomonia in pp, pPb, and PbPb collisions with the CMS detector
title_short Recent results of charmonium and bottomonia in pp, pPb, and PbPb collisions with the CMS detector
title_sort recent results of charmonium and bottomonia in pp, ppb, and pbpb collisions with the cms detector
topic Conferences
url http://cds.cern.ch/record/2749313
work_keys_str_mv AT kimyongsun recentresultsofcharmoniumandbottomoniainppppbandpbpbcollisionswiththecmsdetector
AT kimyongsun initialstages2021