An effective field theory calculation of the parity violating asymmetry in n + p > d + γ


Journal Article

Weak interactions are expected to induce a parity violating pion-nucleon coupling, hπNN(1). This coupling should be measurable in a proposed experiment to study the parity violating asymmetry Aγ in the process n→ + p → d + γ. We compute the leading dependence of Aγ on the coupling hπNN(1) using recently developed effective field theory techniques and find an asymmetry of Aγ = + 0.17 hπNN(1) at leading order. This asymmetry has the opposite sign to that given by Desplanques and Missimer. © 1999 Published by Elsevier Science B.V. All rights reserved.

Full Text

Duke Authors

Cited Authors

  • Kaplan, DB; Savage, MJ; Springer, RP; Wise, MB

Published Date

  • January 1, 1999

Published In

Volume / Issue

  • 449 / 1-2

Start / End Page

  • 1 - 5

International Standard Serial Number (ISSN)

  • 0370-2693

Digital Object Identifier (DOI)

  • 10.1016/S0370-2693(99)00032-5

Citation Source

  • Scopus