Subleading corrections to parity-violating pion photoproduction
Journal Article
·
· Physical Review C
OSTI ID:839243
We compute the photon asymmetry B{sub {gamma}} for near threshold parity violating (PV) pion photoproduction through sub-leading order. We show that sub-leading contributions involve a new combination of PV couplings not included in previous analyses of hadronic PV. We argue that existing constraints on the leading order contribution to B{sub {gamma}}--obtained from the PV {gamma}-decay of {sup 18}F--suggest that the impact of the subleading contributions may be more significant than expected from naturalness arguments.
- Research Organization:
- Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 839243
- Report Number(s):
- JLAB-THY-00-62; DOE/ER/40150-3331; hep-ph/0012253
- Journal Information:
- Physical Review C, Journal Name: Physical Review C Vol. 64
- Country of Publication:
- United States
- Language:
- English
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