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Recent results on ultra-peripheral collisions at the LHC with ALICE
Ultra-peripheral collisions (UPCs) of relativistic heavy-ion collisions provide a unique opportunity to study photon induced interactions at the LHC in new kinematic regimes. The ALICE experiment has measured the coherent photo-nuclear production of $\rho^{0}$ and $J/\psi$ vector mesons in UPCs. The...
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Lenguaje: | eng |
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2022
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Acceso en línea: | https://dx.doi.org/10.22323/1.380.0254 http://cds.cern.ch/record/2836716 |
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author | Hosokawa, Ritsuya |
author_facet | Hosokawa, Ritsuya |
author_sort | Hosokawa, Ritsuya |
collection | CERN |
description | Ultra-peripheral collisions (UPCs) of relativistic heavy-ion collisions provide a unique opportunity to study photon induced interactions at the LHC in new kinematic regimes. The ALICE experiment has measured the coherent photo-nuclear production of $\rho^{0}$ and $J/\psi$ vector mesons in UPCs. The measurement of $\rho$ vector meson is an excellent tool to study nuclear shadowing effects and the approach to the black-disc limit of QCD, while the $J/\psi$ measurement is also a good tool to study nuclear shadowing and saturation effects at low-x. In this contribution, recent results obtained with the data from LHC Run2 will be presented. The first measurement of the cross section of $\rho^{0}$ mesons in Xe--Xe at $\sqrt{s_{\mathrm{NN}}}$ = 5.44 TeV and Pb--Pb UPCs at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV, and the cross section and t-dependence of $J/\psi$ mesons in Pb--Pb UPCs at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV will be reported. These results are compared with various model predictions in order to improve our phenomenological understanding of UPCs. |
id | cern-2836716 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2022 |
record_format | invenio |
spelling | cern-28367162022-11-17T14:24:59Zdoi:10.22323/1.380.0254http://cds.cern.ch/record/2836716engHosokawa, RitsuyaRecent results on ultra-peripheral collisions at the LHC with ALICENuclear Physics - ExperimentParticle Physics - ExperimentUltra-peripheral collisions (UPCs) of relativistic heavy-ion collisions provide a unique opportunity to study photon induced interactions at the LHC in new kinematic regimes. The ALICE experiment has measured the coherent photo-nuclear production of $\rho^{0}$ and $J/\psi$ vector mesons in UPCs. The measurement of $\rho$ vector meson is an excellent tool to study nuclear shadowing effects and the approach to the black-disc limit of QCD, while the $J/\psi$ measurement is also a good tool to study nuclear shadowing and saturation effects at low-x. In this contribution, recent results obtained with the data from LHC Run2 will be presented. The first measurement of the cross section of $\rho^{0}$ mesons in Xe--Xe at $\sqrt{s_{\mathrm{NN}}}$ = 5.44 TeV and Pb--Pb UPCs at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV, and the cross section and t-dependence of $J/\psi$ mesons in Pb--Pb UPCs at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV will be reported. These results are compared with various model predictions in order to improve our phenomenological understanding of UPCs.oai:cds.cern.ch:28367162022 |
spellingShingle | Nuclear Physics - Experiment Particle Physics - Experiment Hosokawa, Ritsuya Recent results on ultra-peripheral collisions at the LHC with ALICE |
title | Recent results on ultra-peripheral collisions at the LHC with ALICE |
title_full | Recent results on ultra-peripheral collisions at the LHC with ALICE |
title_fullStr | Recent results on ultra-peripheral collisions at the LHC with ALICE |
title_full_unstemmed | Recent results on ultra-peripheral collisions at the LHC with ALICE |
title_short | Recent results on ultra-peripheral collisions at the LHC with ALICE |
title_sort | recent results on ultra-peripheral collisions at the lhc with alice |
topic | Nuclear Physics - Experiment Particle Physics - Experiment |
url | https://dx.doi.org/10.22323/1.380.0254 http://cds.cern.ch/record/2836716 |
work_keys_str_mv | AT hosokawaritsuya recentresultsonultraperipheralcollisionsatthelhcwithalice |