PHYSICS OF ULTRA-PERIPHERAL NUCLEAR COLLISIONS
نویسندگان
چکیده
منابع مشابه
Physics of Ultra-Peripheral Nuclear Collisions
Moving highly-charged ions carry strong electromagnetic fields which 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 photonphoton collisions known as ultra-peripheral collisions (UPC). Hadron colliders like the Relativistic Heavy Ion Collider (RHIC), the Tevatron and the Large Hadron Collid...
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This presentation summarizes the results on ultra-peripheral collisions obtained at RHIC. It also discusses some aspects of the corresponding electromagnetic interactions in pp and pp collisions. Ultra-peripheral nucleus-nucleus collisions are defined as collisions in which the distance between the nuclei is large enough that no purely hadronic interactions can occur. This roughly means impact ...
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Coherent peripheral collisions of atomic nuclei involve electromagnetic or long range hadronic interactions at impact parameters, where both nuclei survive intact. Recently such ultra-peripheral collisions were observed at RHIC. The effect of the electromagnetic field can be interpreted as a photon-photon collision with an effective center of mass energy up to a few GeV at RHIC. At the Large Ha...
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We refer to ultra-peripheral heavy ion collisions, as those nuclear interactions with a impact parameter, b, larger than twice the nuclear radius RA, where no hadronic nucleon-nucleon collisions occur . The large charge of a relativistic heavy nucleus is a strong source of quasi-real photons. Exclusive ρ meson production AuAu→AuAuρ0 can then be described by the vector meson dominance model : a ...
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We report the first observation of exclusive ρ production in ultra-peripheral collisions at RHIC. The ρ are produced electromagnetically at large impact parameters where no hadronic interactions occur. The produced ρ have a small perpendicular momentum, consistent with production that is coherent on both the photon emitting and scattering nuclei. We observe both exclusive ρ production, and ρ pr...
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ژورنال
عنوان ژورنال: Annual Review of Nuclear and Particle Science
سال: 2005
ISSN: 0163-8998,1545-4134
DOI: 10.1146/annurev.nucl.55.090704.151526