Ultra-Peripheral Collisions at RHIC


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Ultra-Peripheral Collisions at RHIC

Coherent Coupling to both nuclei: photon ? Z2, Pomeron ?A4/3 to A 2 ( A4/3 in the limit srN?? ; A2 in the weak limit)

PPT Slide

An Example : Interference

STAR Detector

Heavy Ion Collision

Experimental Signature of UPC

Ultra-Peripheral Collisions Trigger

Event Selection Criteria

First Results: Invariant Mass & Transverse Momentum Spectra

Nuclear Excitation

Invariant Mass & Transverse Momentum Spectra

Compare ZDC Signals

Monte Carlo Simulation vs. Data


Author: Falk Meissner

Email: fmeissner@lbl.gov

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