12-18 August 2012
US/Eastern timezone

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Measurement of the J/Psi production cross section in ultraperipheral Pb-Pb collisions

16 Aug 2012, 16:00
2h
Regency 1/3 and Ambassador ()

Regency 1/3 and Ambassador

Poster Heavy flavor and quarkonium production Poster Session Reception

Speaker

Tomasz Bold (AGH Univ. of Science amp; Technology, Krakow)

Description

The results of the study of ultraperipheral (gamma-gamma and gamma-Pomeron) interactions are presented. The analysis was performed with the data recorded by the ATLAS experiment during LHC Pb-Pb run in year 2011. The data, taken at the beam energy of 2.75 TeV per nucleon, correspond to an integrated luminosity of 141/microbarn. Muon pairs, produced in pure electromagnetic two-photon interactions and in reactions of J/Psi photoproduction, were analyzed and the cross section of AA -> AA + mu+mu- reaction was measured. Another measurement of the J/Psi photoproduction cross section was carried out with the events accompanied by mutual neutron emission and triggered by Zero Degree Calorimeter.

Primary author

Zdenek ATLAS Collaboration (Charles University Prague)

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