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Parity Violation in Polarized-Gamma Proton Compton Scattering

Jiunn-Wei Chen·Thomas D. Cohen·Chung Wen Kao
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Abstract

Polarized beam gamma p Compton scattering provides a theoretically clean way to extract the isovector parity violating pion-nucleon coupling constant $h_{πNN}^{(1)}$. This channel is more tractable experimentally than the recently proposed extraction of $h_{πNN}^{(1)}$ from the Bedaque-Savage process --- polarized target gamma p compton scattering. The leading parity violating effect is calculated using Heavy Baryon Chiral Perturbation Theory. The size of the asymmetry is estimated to be ~ 4 10^{-8} for 120 MeV photon energy.

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Jiunn-Wei Chen, Thomas D. Cohen, Chung Wen Kao. 2000-09-11. Parity Violation in Polarized-Gamma Proton Compton Scattering. https://doi.org/10.1103/physrevc.64.055206

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