Photoproduction in Ultra-Peripheral Heavy Ion Collisions at STAR
نویسنده
چکیده
We present recent STAR results on photoproduction in ultra-peripheral relativistic heavy ion collisions. In these collisions the impact parameter of the beam particles is larger than the sum of their nuclear radii, so that they interact via their long-range Coulomb fields. STAR has measured the production of ρ(770) mesons in exclusive reactions as well as in processes with mutual nuclear excitation of the beam particles. We present results for the ρ production cross section in Au-Au collisions at √
منابع مشابه
Photoproduction in Ultra-Peripheral Heavy-Ion Collisions
The strong electromagnetic fields present in ultra-peripheral collisions of heavy-ions offer a possibility to study two-photon and photonuclear collisions complementary to similar studies with lepton beams but over an increased photon energy range. This presentation[1] will give an overview of photoproduction at hadron colliders.
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