Production of<i>γγ</i>pairs in quark-gluon plasma and hadron plasma

Yoshida, Ritsu; Miyazaki, Tadashi; Kadoya, Morihiro

doi:10.1103/physrevd.35.388

Cited by 21 publications

(10 citation statements)

References 7 publications

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“…However, a previous dynamical calculation did find this contribution to be sub-leading [6]. The discussions in this work can be easily extended to diphotons [31]. Connected to that is the interesting question of the transverse momentum spectrum of the dileptons, both from the Drell-Yan process and the jetplasma interaction.…”

Section: Resultsmentioning

confidence: 91%

Large mass dileptons from the passage of jets through a quark gluon plasma

Srivastava

Gale²,

Fries³

2003

Phys. Rev. C

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We calculate the emission of large mass dileptons originating from the annihilation of quark jets passing through quark gluon plasma. Considering central collisions of heavy nuclei at SPS, RHIC and LHC energies, we find that the yield due to the jet-plasma interaction gets progressively larger as the collision energy increases. We find it to be negligible at SPS energies, of the order of the Drell-Yan contribution and much larger than the normal thermal yield at RHIC energies and up to a factor of ten larger than the Drell-Yan contribution at LHC energies. An observation of this new dilepton source would confirm the occurrence of jet-plasma interactions and of conditions suitable for jet-quenching to take place.

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Section: Resultsmentioning

confidence: 91%

Large mass dileptons from the passage of jets through a quark gluon plasma

Srivastava

Gale²,

Fries³

2003

Phys. Rev. C

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“…Photon pairs are of interest, because they are emitted more abundantly than lepton pairs of the same invariant mass, and because they probe components of the electromagnetic response function (22) with different spin [252,253]. Moreover, the photon pair correlations in momentum space can-in principle-be utilized for a density interferometric analysis that retains information about the quark-gluon plasma phase [254,255].…”

Section: Direct Photonsmentioning

confidence: 99%

Physics and signatures of the quark-gluon plasma

Müller

1995

Rep. Prog. Phys.

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This is a critical review of the various observables that have been proposed to signal the change from dense hadronic matter to a quark-gluon plasma at high temperature or baryon density. I discuss current models of quark-gluon plasma formation in relativistic heavy ion collisions and analyze the virtues and ambiguities of various signatures. * Review article prepared for Report of Progress in Physics

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“…Yoshida et al [6] claim that the photon pairs are better signals than the dileptons because the diphotons have a larger production rate. On the other hand, Redlich [7], after taking into account the dynamics of the hadronization phase transition, has shown that dimuons can be better than diphotons, as a study of the muon pairs at lower invariant masses is enough for the detection of a QGP.…”

Section: Introductionmentioning

confidence: 98%

Energy distribution of muon pairs: A signal for the creation of a baryon-rich quark-gluon plasma in relativistic heavy-ion collisions

Janhavi¹,

Murugesan²,

Raja³

et al. 1992

Phys. Rev. D

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A study of the energy distribution of muon pairs and photon pairs produced in ultrarelativistic heavyion collisions shows that muon pairs may be better signatures than photon pairs for the detection of a baryon-rich quark-gluon plasma (QGP). The value of the transverse mass of the muon pairs at which the p-meson peak disappears from their invariant-mass spectrum is sensitive to the equation of state of the QGP. Hence dimuons are useful not only for the detection of a QGP but also for a study of its equation of state.PACS numberk): 25.75.+r, 12.38.Mh, 24.85.+p

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Production ofγγpairs in quark-gluon plasma and hadron plasma

Abstract: The ratio of the production rate of yy pairs in the quark-gluon plasma to that in the hadron plasma is shoum to be much larger than the ratio of the production rate of p + p -pairs for the two plasma states. Hence the yy-pair production is more adequate to discriminate the plasma states.

Cited by 21 publications

References 7 publications

Large mass dileptons from the passage of jets through a quark gluon plasma

Large mass dileptons from the passage of jets through a quark gluon plasma

Physics and signatures of the quark-gluon plasma

Energy distribution of muon pairs: A signal for the creation of a baryon-rich quark-gluon plasma in relativistic heavy-ion collisions

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