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
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