Subleading corrections to parity-violating pion photoproduction
Journal Article
·
· Physical Review C
We compute the photon asymmetry B{sub {gamma}} for near threshold parity-violating (PV) pion photoproduction through subleading order. We show that subleading 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
- Sponsoring Organization:
- (US)
- DOE Contract Number:
- AC05-84ER40150; FG02-00ER41146
- OSTI ID:
- 40277104
- Journal Information:
- Physical Review C, Journal Name: Physical Review C Journal Issue: 3 Vol. 64; ISSN 0556-2813
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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