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We report the measurements of the prompt and non-prompt J/{\psi} and {\psi}(2S) nuclear modification factors (RAA) using pp and PbPb data and the RpPb using pPb data collected by CMS at the LHC. All measurements were performed via the…

High Energy Physics - Experiment · Physics 2021-02-16 Abdulla Abdulsalam

The foreseen capability to cover the far backward region at A Fixed-Target Experiment using the LHC beams allows to explore the dynamics of target fragmentation in hadronic collisions. In this report we briefly outline the required…

High Energy Physics - Phenomenology · Physics 2015-05-29 Federico Alberto Ceccopieri

We study the hot medium effects in high-multiplicity proton-proton (pp) collisions at $\sqrt{s_{NN}}=13$ TeV via the charmonium probes. The hot medium is described with the hydrodynamic model, while charmonium evolutions in the medium are…

Nuclear Theory · Physics 2024-11-25 Yunfan Bai , Baoyi Chen

We study charmonium production in proton-nucleus ($p$-A) collisions focusing on final-state effects caused by the formation of an expanding medium. Toward this end, we utilize a rate equation approach within a fireball model as previously…

Nuclear Theory · Physics 2019-03-20 Xiaojian Du , Ralf Rapp

We discuss features of charmonium suppression at $\sqtr{s} = 200$ GeV within the framework of the Glauber-Gribov theory and the comovers interaction model. The latter approach has been extended by allowing for secondary charmonium…

High Energy Physics - Phenomenology · Physics 2008-11-26 K. Tywoniuk , L. Bravina , A. Capella , E. G. Ferreiro , A. B. Kaidalov , E. Zabrodin

We review recent results on the production of prompt charmonium in association with a hadron jet or a prompt photon in two-photon collisions at next-to-leading order in the factorization framework of nonrelativistic quantum chromodynamics.

High Energy Physics - Phenomenology · Physics 2015-06-25 Bernd A. Kniehl

Quarkonium production in proton-nucleus collisions is a powerful tool to disentangle cold nuclear matter effects. A model based on coherent energy loss is able to explain the available quarkonium suppression data in a broad range of…

High Energy Physics - Phenomenology · Physics 2015-04-29 François Arleo , Stéphane Peigné

In this article, we review the status of the charmonium production in low energy fixed target proton-nucleus (p-A) and nucleus-nucleus (A-A) collisions as measured by different experimental collaborations at CERN-SPS, Fermilab and HERA…

Nuclear Experiment · Physics 2026-05-08 Partha Pratim Bhaduri

Taking into account the gluon shadowing and the $J/\psi$ nuclear absorption, we evaluate the Cold Nuclear Matter (CNM) effects on $J/\psi$ production in $p$Pb and PbPb collisions at the design LHC energy for PbPb collisions,…

High Energy Physics - Phenomenology · Physics 2015-03-20 E. G. Ferreiro , F. Fleuret , J. P. Lansberg , N. Matagne , A. Rakotozafindrabe

We study the effect of spatially homogeneous and inhomogeneous shadowing on $J/\psi$ production in deuterium-nucleus collisions. We discuss how the shadowing and its spatial dependence may be measured by comparing central and peripheral…

Nuclear Theory · Physics 2009-11-10 S. R. Klein , R. Vogt

We propose to investigate various charmonium states using their common decay channel to p pbar at LHC. Having the branching ratios for charmonium decaying into the p pbar final state measured or calculated, we propose to measure the…

High Energy Physics - Phenomenology · Physics 2013-05-30 Sergey Barsuk , Jibo He , Emi Kou , Benoit Viaud

The Charmonium transverse momentum distribution is more sensitive to the nature of the hot QCD matter created in high energy nuclear collisions, in comparison with the yield. Taking a detailed transport approach for charmonium motion…

Nuclear Theory · Physics 2015-06-22 Zebo Tang , Nu Xu , Kai Zhou , Pengfei Zhuang

$J/\psi$ and $\psi'$ production cross sections in fixed-target experiment is calculated, considering the contributions from both color-singlet and color-octet mechanisms.The results are applied to the investigations of the $J/\psi$…

High Energy Physics - Phenomenology · Physics 2007-05-23 Xiao-Fei Zhang , Cong-Feng Qiao , Xiao-Xia Yao , Wei-Qin Chao

This Paper presents rapidity-differential measurements of coherent J/$\psi$ and $\psi({\rm 2S})$ photoproduction, as well as rapidity- and mass-differential measurements of exclusive dimuon production, in the forward rapidity region $-4 < y…

Nuclear Experiment · Physics 2026-05-14 ALICE Collaboration

We study coherent photoproduction of $\psi'$ and the subsequent suppression in high energy nuclear collisions. The hot medium effect on charmonium photoproduction is controlled by the competition between the fireball size and nuclear size.…

High Energy Physics - Phenomenology · Physics 2018-12-05 Baoyi Chen , Carsten Greiner , Wei Shi , Wangmei Zha , Pengfei Zhuang

We explore how nuclear modifications to the nucleon structure functions, shadowing, affect massive gauge boson production in heavy ion collisions at different impact parameters. We calculate the dependence of $Z^0$, $W^+$ and $W^-$…

High Energy Physics - Phenomenology · Physics 2009-10-31 R. Vogt

The charmonium yields are expected to be considerably suppressed if a deconfined medium is formed in high-energy heavy-ion collisions. In addition, the bottomonium states, with the possible exception of the Upsilon(1S) state, are also…

High Energy Physics - Phenomenology · Physics 2015-03-13 R. Vogt

Charmonium production in high-energy collisions can be split into a prompt and a non-prompt component. Both components can be distinguished experimentally by studying displaced topology, and represent valuable tools to investigate the…

Nuclear Experiment · Physics 2025-01-03 Maurice Coquet

Proton-proton ($pp$) collision has been considered as a baseline to study the system produced in relativistic heavy-ion (AA) collisions with the basic assumption that no thermal medium is formed in $pp$ collisions. This warrants a cautious…

High Energy Physics - Phenomenology · Physics 2022-06-22 Captain R. Singh , Suman Deb , Raghunath Sahoo , Jan-e Alam

The effect of shadowing on the early state of ultrarelativistic heavy ion collisions is investigated along with transverse energy and hard process production, specifically Drell-Yan, $J/\psi$, and $\Upsilon$ production. We choose several…

High Energy Physics - Phenomenology · Physics 2014-11-17 V. Emel'yanov , A. Khodinov , S. R. Klein , R. Vogt