Deduction of the in-medium gluon distribution from photon-gluon fusion processes in peripheral ultrarelativistic heavy-ion collisions

Greiner, Martin; Vidović, Mario; Hofmann, Christian; Schäfer, Andreas; Soff, G.

doi:10.1103/physrevc.51.911

Cited by 24 publications

(21 citation statements)

References 15 publications

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“…Considerably more interest has been devoted to direct photon interactions, in particular the production of heavy qq-pairs [6,89,90,91]. Recently, the cross section for photoproduction of heavy quark pairs in pp collisions has been calculated [92].…”

Section: B Interference In Exclusive Vector Meson Productionmentioning

confidence: 99%

Physics of Ultra-Peripheral Nuclear Collisions

Bertulani

Klein

Nystrand

2005

Annu. Rev. Nucl. Part. Sci.

461

380

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Moving highly-charged ions carry strong electromagnetic fields that act as a field of photons. In collisions at large impact parameters, hadronic interactions are not possible, and the ions interact through photon-ion and photon-photon collisions known as ultra-peripheral collisions (UPC). Hadron colliders like the Relativistic Heavy Ion Collider (RHIC), the Tevatron and the LargeHadron Collider (LHC) produce photonuclear and two-photon interactions at luminosities and energies beyond that accessible elsewhere; the LHC will reach a γp energy ten times that of the Hadron-Electron Ring Accelerator (HERA). Reactions as diverse as the production of antihydrogen, photoproduction of the ρ 0 , transmutation of lead into bismuth and excitation of collective nuclear resonances have already been studied. At the LHC, UPCs can study many types of 'new physics.'

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Section: B Interference In Exclusive Vector Meson Productionmentioning

confidence: 99%

Physics of Ultra-Peripheral Nuclear Collisions

Bertulani

Klein

Nystrand

2005

Annu. Rev. Nucl. Part. Sci.

461

380

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“…Therefore, heavy quarks can be produced in photo-nucleus interactions as well as photon-photon interactions. The first case has been extensively discussed in literature [23][24][25] (For a review, see Ref. [26]) and recently revised in different approaches [27][28][29].…”

Section: Introductionmentioning

confidence: 99%

The QCD pomeron in ultraperipheral heavy ion collisions: II. Heavy quark production

Gonçalves

Machado

2003

Eur. Phys. J. C

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The heavy quark production in ultraperipheral heavy ion collisions is investigated, with particular emphasis on the results from the coherent interactions given by the two-photon process. One addresses the heavy quark total cross sections at photon level considering the saturation model and the BFKL dynamics in the color dipole picture. The corresponding cross sections at nuclear level are presented. It is verified that the QCD dynamics implies an enhancement of the cross section in comparison with previous calculations. 25.75.Dw, 13.60.Le

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“…Finally, other types of interactions can contribute to charm production at low E T . The largest identified charm contribution in very peripheral collisions is photon-gluon fusion [8,28].…”

Section: Correlation Between E T and Impact Parametermentioning

confidence: 99%

Charm quark production in noncentral heavy ion collisions

et al. 1997

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The effect of gluon shadowing on charm quark production in large impact parameter ultrarelativistic heavy ion collisions is investigated. Charm quark production cross sections are calculated for a range of noncentral impact parameters which can be determined from the global transverse energy distribution. We show that charm quark production is a good probe of the local parton density which determines the effectiveness of shadowing. We discuss why shadowing may have a spatial dependence and show that this spatial dependence may be detected in noncentral heavy ion collisions.

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Deduction of the in-medium gluon distribution from photon-gluon fusion processes in peripheral ultrarelativistic heavy-ion collisions

Cited by 24 publications

References 15 publications

Physics of Ultra-Peripheral Nuclear Collisions

Physics of Ultra-Peripheral Nuclear Collisions

The QCD pomeron in ultraperipheral heavy ion collisions: II. Heavy quark production

Charm quark production in noncentral heavy ion collisions

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