Parity Violating Photoproduction of {pi}{sup {+-}} on the {Delta} Resonance
Journal Article
·
· Physical Review Letters
OSTI ID:839059
We analyze the real-photon asymmetry A{sub {gamma}}{sup {+-}} for the parity-violating (PV) {pi}{sup {+-}} production on the {Delta} resonance via the reactions {rvec {gamma}} + p {yields} {Delta}{sup +} {yields} {pi}{sup +} + n and {rvec {gamma}} + d {yields} {Delta}{sup 0} + p {yields} {pi}{sup -} + p + p. This asymmetry is nonvanishing due to a PV {gamma}N{Delta} coupling constant, d{sub {Delta}}{sup {+-}}. We argue that an experimental determination of this coupling would be of interest for hadron dynamics, possibly shedding light on the S-wave/P-wave puzzle in the hyperon nonleptonic decays and the violation of Hara's theorem in weak radiative hyperon decays.
- 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:
- 839059
- Report Number(s):
- JLAB-THY-01-74; DOE/ER/40150-3303; hep-ph/0106216
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Vol. 87; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electroweak radiative corrections to parity-violating electroexcitation of the Delta
Subleading corrections to parity-violating pion photoproduction
A measurement of the parity-violating gamma-ray asymmetry in the neutron-proton capture
Journal Article
·
Fri Nov 30 23:00:00 EST 2001
· Physical Review, D
·
OSTI ID:839058
Subleading corrections to parity-violating pion photoproduction
Journal Article
·
Sat Sep 01 00:00:00 EDT 2001
· Physical Review C
·
OSTI ID:839243
A measurement of the parity-violating gamma-ray asymmetry in the neutron-proton capture
Conference
·
Mon Dec 31 23:00:00 EST 2001
·
OSTI ID:976399