dorsal/arxiv
View SchemaPhoton-Photon and Photon-Hadron Interactions at Relativistic Heavy Ion Colliders
| Authors | Gerhard Baur, Kai Hencken, Dirk Trautmann |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9810078 |
| URL | https://arxiv.org/abs/nucl-th/9810078 |
| DOI | 10.1016/S0146-6410(99)00089-7 |
| Journal | Prog.Part.Nucl.Phys. 42 (1999) 357-366 |
Abstract
In central collisions at relativistic heavy ion colliders like the Relativistic Heavy Ion Collider RHIC/Brookhaven and the Large Hadron Collider LHC (in its heavy ion mode) at CERN/Geneva, one aims at detecting a new form of hadronic matter --- the Quark Gluon Plasma. We discuss here a complementary aspect of these collisions, the very peripheral ones. Due to coherence, there are strong electromagnetic fields of short duration in such collisions. They give rise to photon-photon and photon-nucleus collisions with high flux up to an invariant mass region hitherto unexplored experimentally. After a general survey photon-photon luminosities in relativistic heavy ion collisions are discussed. Then photon-photon physics at various gamma-gamma-invariant mass scales is discussed. The region of several GeV, relevant for RHIC is dominated by QCD phenomena (meson and vector meson pair production). Invariant masses of up to about 100 GeV can be reached at LHC, and the potential for new physics is discussed. Lepton-pair production, especially electron-positron pair production is copious. Due to the strong fields there will be new phenomena, especially multiple e+e- pair production.
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"abstract": "In central collisions at relativistic heavy ion colliders like the\nRelativistic Heavy Ion Collider RHIC/Brookhaven and the Large Hadron Collider\nLHC (in its heavy ion mode) at CERN/Geneva, one aims at detecting a new form of\nhadronic matter --- the Quark Gluon Plasma. We discuss here a complementary\naspect of these collisions, the very peripheral ones. Due to coherence, there\nare strong electromagnetic fields of short duration in such collisions. They\ngive rise to photon-photon and photon-nucleus collisions with high flux up to\nan invariant mass region hitherto unexplored experimentally. After a general\nsurvey photon-photon luminosities in relativistic heavy ion collisions are\ndiscussed. Then photon-photon physics at various gamma-gamma-invariant mass\nscales is discussed. The region of several GeV, relevant for RHIC is dominated\nby QCD phenomena (meson and vector meson pair production). Invariant masses of\nup to about 100 GeV can be reached at LHC, and the potential for new physics is\ndiscussed. Lepton-pair production, especially electron-positron pair production\nis copious. Due to the strong fields there will be new phenomena, especially\nmultiple e+e- pair production.",
"arxiv_id": "nucl-th/9810078",
"authors": [
"Gerhard Baur",
"Kai Hencken",
"Dirk Trautmann"
],
"categories": [
"nucl-th"
],
"doi": "10.1016/S0146-6410(99)00089-7",
"journal_ref": "Prog.Part.Nucl.Phys. 42 (1999) 357-366",
"title": "Photon-Photon and Photon-Hadron Interactions at Relativistic Heavy Ion Colliders",
"url": "https://arxiv.org/abs/nucl-th/9810078"
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