J/ψ PHOTOPRODUCTION RESULTS FROM ALICE
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00372053" target="_blank" >RIV/68407700:21340/23:00372053 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.5506/APhysPolBSupp.16.1-A98" target="_blank" >https://doi.org/10.5506/APhysPolBSupp.16.1-A98</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5506/APhysPolBSupp.16.1-A98" target="_blank" >10.5506/APhysPolBSupp.16.1-A98</a>
Alternative languages
Result language
angličtina
Original language name
J/ψ PHOTOPRODUCTION RESULTS FROM ALICE
Original language description
Diffractive photoproduction of J/psi vector mesons is studied at the LHC with the ALICE detector in p-Pb and Pb-Pb ultra-peripheral collisions (UPCs), where the Pb ions act as powerful sources of quasi-real photons. In this contribution, the first measurement at the LHC of dissociative photoproduction of J/psi off protons is presented; this process is sensitive to quantum fluctuations of the structure of the target at the subnucleon level. In addition, cross sections for the exclusive channel and for continuum dimuon production at small masses were obtained in the same kinematic region. This latter process probes our simultaneous understanding, in a new kinematic region, of the photon flux emitted by protons and by lead ions. The transverse momentum dependence of J/psi photoproduction on lead targets in Pb-Pb collisions at midrapidity, which is sensitive to the gluonic structure of Pb in the impact-parameter plane, is also presented. The measurement of J/psi photoproduction off hadrons sheds light onto the initial state of QCD targets and provides important constraints on the initial conditions used in hydrodynamical models of heavy-ion collisions.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10303 - Particles and field physics
Result continuities
Project
<a href="/en/project/LM2018104" target="_blank" >LM2018104: Research Infrastructure for experiments at CERN</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
ACTA PHYSICA POLONICA B PROCEEDINGS SUPPLEMENT
ISBN
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ISSN
1899-2358
e-ISSN
2082-7865
Number of pages
6
Pages from-to
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Publisher name
Jagiellonian University in Krakow
Place of publication
Krakow
Event location
Krakow
Event date
Apr 4, 2022
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001071843100098