Contribution to a conference proceedings/Internal Report

PUBDB-2015-05601

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png ALICE results on vector meson photoproduction in ultra-peripheral p-Pb and Pb-Pb collisions

Kryshen, E. ; ALICE Collaboration (Collaboration Author)

2014
Deutsches Elektronen-Synchrotron, DESY Hamburg

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2014-04/198

Report No.: arXiv:1410.8192

Abstract: Lead nuclei, accelerated at the LHC, are sources of strong electromagnetic fields that can be used to measure photon-induced interactions in a new kinematic regime. These interactions can be studied in ultra-peripheral p-Pb and Pb--Pb collisions where impact parameters are larger than the sum of the nuclear radii and hadronic interactions are strongly suppressed. Heavy quarkonium photoproduction is of particular interest since it is sensitive to the gluon distribution in the target. The ALICE Collaboration has studied $J/\psi$ and $\psi p$ photoproduction in ultra-peripheral Pb--Pb collisions and exclusive $J/\psi$ photoproduction off protons in ultra-peripheral p--Pb collisions at the LHC. Implications for the study of gluon density distributions and nuclear gluon shadowing are discussed. Recent ALICE results on $\ro$ photoproduction are also presented.

Keyword(s): heavy ion: scattering ; rho(770)0: photoproduction ; J/psi(3100) ; charmonium: photoproduction ; psi(3685) ; gluon: shadowing ; gluon: density ; p nucleus: scattering ; lead ; ALICE ; CERN LHC Coll ; nuclear reaction: peripheral ; experimental results ; 2760: 5020 GeV-cms/nucleon

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Contributing Institute(s):

1. LHC/ATLAS Experiment (ATLAS)
2. LHC/CMS Experiment (CMS)
3. Uni Hamburg / Experimentalphysik (UNI/EXP)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Book/Proceedings/Internal Report Schmidt, A. (Editor)>Extern* ; Sander, C. (Editor)DESY*
Proceedings, 20th International Conference on Particles and Nuclei (PANIC 14)
2014Panic2014, Panic2014, HamburgHamburg, Germany, 25 Aug 2014 - 29 Aug 20142014-08-252014-08-29 Hamburg : Deutsches Elektronen-Synchrotron, DESY 1-754 (2014) [10.3204/DESY-PROC-2014-04]2014     Files  Fulltext BibTeX | EndNote: XML, Text | RIS

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