Nuclear Media Effects on Production and Decay of Vector Meson Studied in 12 GeV p+A Interaction
Abstract
The experiment E325 has been carried out at KEK-PS to investigate nuclear media effects on the invariant mass spectra of ρ, ω and φ mesons through their decays in the e+e- or K+K- channels. From the earlier data, the experiment has reported the signature of in-medium mass modification of ρ and/or ω mesons for the first time. This manuscript describes our preliminary results based on the data aquired in the allocated beam time of ∼3200 hours, which ended in February 2002.
- Publication:
-
Progress of Theoretical Physics Supplement
- Pub Date:
- 2003
- DOI:
- 10.1143/PTPS.149.49
- Bibcode:
- 2003PThPS.149...49E