CERN Accelerating science

Published Articles
Title	Hadronic and electromagnetic fragmentation of ultrarelativistic heavy ions at LHC
Author(s)	Braun, H H (PSI, Villigen) ; Fassò, A (Unlisted, CZ) ; Ferrari, A (CERN) ; Jowett, J M (CERN) ; Sala, P R (INFN, Milan) ; Smirnov, G I (CERN ; Dubna, JINR)
Publication	2014
Number of pages	14
In:	Phys. Rev. Spec. Top. Accel. Beams 17 (2014) 021006
DOI	10.1103/PhysRevSTAB.17.021006
Subject category	High-Energy Accelerators and Colliders ; Accelerators and Storage Rings
Abstract	Reliable predictions of yields of nuclear fragments produced in electromagnetic dissociation and hadronic fragmentation of ion beams are of great practical importance in analyzing beam losses and interactions with the beam environment at the Large Hadron Collider (LHC) at CERN as well as for estimating radiation effects of galactic cosmic rays on the spacecraft crew and electronic equipment. The model for predicting the fragmentation of relativistic heavy ions is briefly described, and then applied to problems of relevance for LHC. The results are based on the fluka code, which includes electromagnetic dissociation physics and dpmjet-iii as hadronic event generator. We consider the interaction of fully stripped lead ions with nuclei in the energy range from about one hundred MeV to ultrarelativistic energies. The yields of fragments close in the mass and charge to initial ions are calculated. The approach under discussion provides a good overall description of Pb fragmentation data at 30 and 158A  GeV as well as recent LHC data for sNN=2.76  TeV Pb-Pb interactions. Good agreement with the calculations in the framework of different models is found. This justifies application of the developed simulation technique both at the LHC injection energy of 177A  GeV and at its collision energies of 1.38, 1.58, and 2.75A  TeV, and gives confidence in the results obtained.
Copyright/License	publication: © 2014-2024 The Author(s) (License: CC-BY-3.0)

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