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Photoproduction ofρ0in ultra–peripheral nuclear collisions at ALICE

2013/04/25 by Kyrre Skjerdal
Physics and Astronomy · #Alice (programming language) #Charged particle #Detector #High-Energy Particle Collisions Research #Large Hadron Collider #Meson #Particle Detector Development and Performance #Particle identification #Particle physics theoretical and experimental studies #Photon #hep-ex #nucl-ex

paper · pdf · doi:10.1088/1742-6596/455/1/012010

published in Journal of Physics Conference Series 455, 012010 (IOP Publishing) · 8 pages, 8 figures, prepared for the Proceedings of the International Workshop On Physics At The LHC (Kruger 2012) December 3 - 7, 2012 Protea Hotel, Kruger Gate South Africa

arxiv created 2013/04/25 · openalex publication_date 2013/08/06 · openalex created_date 2016/06/24 · arxiv updated 2019/08/21 · openalex updated_date 2026/08/05

Abstract

Photoproduction of ρ 0 mesons in ultra-peripheral Pb+Pb collisions has been studied by the ALICE Collaboration at the CERN LHC. The strong photon flux associated with relativistic charged nuclei leads to a very large cross section for exclusive photoproduction of ρ 0 meson in interactions of the type Pb + Pb → Pb + Pb + ρ 0 . For a ρ 0 produced at mid-rapidity at the LHC, the photon-nucleus center of mass energy is higher than in any previous experiment. The ALICE detector is a general purpose detector dedicated to study heavy-ion collisions. ALICE has excellent performance in the low p T region, and can reconstruct charged particle tracks with 0.1 GeV/c ≤ p T ≤ 100 GeV/c. In this analysis all tracks were required to be within ALICE's central barrel. Analysis of data from the first heavy ion run at the LHC in 2010 will be discussed in this paper.

Citations