Inclusive meson production in peripheral collisions of ultrarelativistic heavy ions

Abstract

There exist several proposals to use Weizsäcker-Williams photons generated by ultrarelativistic heavy ions to produce exotic particles in γγ fusion reactions. To estimate the background conditions for such reactions we analyze various mechanisms of meson production in very peripheral collisions of ultrarelativistic heavy ions at RHIC and LHC energies. Besides γγ fusion they include also electromagnetic γA interactions and strong nucleon-nucleon interactions in grazing AA collisions. All these processes are characterised by low multiplicities of produced particles. γA and AA events are simulated by corresponding Monte Carlo codes, RELDIS and FRITIOF. In each of these processes a certain fraction of pions is produced close to the mid-rapidity region that gives a background for the γγ events. The possibility of selecting mesons produced in γγ fusion events via different p t cut procedures is demonstrated. *

Two-photon interactions with nuclear breakup in relativistic heavy ion collisions

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Higgs production in ultra-peripheral electromagnetic AA and pp interactions at LHC

“…Usually such kind of interactions are considered in the context of QCD physics [4,5]. An important advantage of this reaction is the low multiplicity in γγ interaction.…”

A study of the energy dependence for the multiplicity of shower particles produced in a 16O–emulsion interaction in the framework of the Coulomb-modified Glauber model

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