Peripheral Collisions

Fast moving highly-charged ions carry strong electromagnetic fields that act as a beam of photons. In collisions at large impact parameters (b>R1+R2), hadronic interactions are not possible, and the ions interact through photon-ion and photon-photon collisions known as ultra-peripheral collisions (UPCs).  Ultra-peripheral hadron-hadron collisions will provide unique opportunities for studying electromagnetic processes. Ultra-relativistic heavy-ion interactions have been used to study nuclear photo excitation (e.g., to a Giant Dipole Resonance) and photoproduction of hadrons.



Hadron colliders like the Relativistic Heavy Ion Collider (RHIC), the Tevatron, and the Large Hadron Collider (LHC) produce photonuclear and two-photon interactions at luminosities and energies beyond that accessible elsewhere.



pp2pp weekly

2011-07-06 12:00
2011-07-06 13:30
America/New York
Wednesday, 6 July 2011
Physics 3-192, at 16:00 (GMT), duration : 01:30
12:00Discussion of the new alignment ( 00:30 ) 0 filesStephen (ODU)
12:30Results with the new alignment ( 00:30 ) 1 fileKin (BNL)

Analysis Tasks

Speaker : Wlodek

Talk time : 14:00, Duration : 00:20

Other issues

Speaker : Wlodek + all ( BNL )

Talk time : 15:00, Duration : 00:20

PWG data sample usage


Speaker : Jamie Dunlop ( BNL )

Talk time : 12:00, Duration : 00:10