skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Vector meson modification in nuclear matter at CLAS

Journal Article · · Modern Physics Letters A

Photoproduction of vector mesons off nuclei were performed at Jefferson Lab using the CEBAF Large Acceptance Spectrometer (CLAS). The properties of the A vector mesons were investigated via their rare leptonic decay to e+e . After subtracting the combinatorial background, the A meson mass distributions were extracted for each of the targets. We observe no effects on the mass of the A meson, some widening in titanium and iron is observed consistent with the collisional broadening.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-060R23177
OSTI ID:
956170
Report Number(s):
JLAB-PHY-09-931; DOE/OR/23177-0625; MPLAEQ; TRN: US1004909
Journal Information:
Modern Physics Letters A, Vol. 23; ISSN 0217-7323
Country of Publication:
United States
Language:
English