SN0386 : Exclusive Vector Meson Production in Relativistic Heavy Ion Collisions
Updated on Sun, 2007-07-15 20:12 by testadmin. Originally created by chajecki on 2007-06-18 19:57.
| Author(s) | : | S. Klein and J. Nystran |
| Date | : | Feb. 9, 1999 |
| File(s) | : | sn0386.ps.gz |
| Abstract | : | Exclusive vector meson production reactions such as Au + Au --> Au + Au + V, where V=rho, omega, phi or J/Psi can proceed through photon-Pomeron and photon-meson interactions. Photons from the electromagnetic field of one nucleus interact coherently with the other nucleus. Photonuclear cross sections are scaled from gamma p data, and convoluted with the photon spectrum to find the exclusive rates. The cross sections at the RHIC and LHC heavy ion colliders are huge, 10% of the total hadronic cross section at RHIC, and 50% at LHC. These accelerators may be useful as vector meson factories. With iodine beams at RHIC, 640 rho are produced each second (10^10/year); with calcium at the LHC the rate is 240 kHz. The phi rates are 39 Hz at RHIC and 15 kHz at LHC, while the J/Psi rate is 0.3 Hz at RHIC and 780 Hz at the LHC. Because of the coherent couplings, the reactions kinematics are similar to coherent two-photon interactions; we discuss the interplay between the two reactions. |
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| Category | : | PWG |
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