The chiral quark model posits pseudoscalar and vector meson couplings to constituent quarks. The parity violating meson-quark couplings lead to anapole moments and form factors of the nucleons. These arise both as parity violating meson loop fluctuations as well as exchange currents and polarization
The anapole form factor of the deuteron
β Scribed by Martin J. Savage; Roxanne P. Springer
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 157 KB
- Volume
- 686
- Category
- Article
- ISSN
- 0375-9474
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β¦ Synopsis
We find the leading-order result for the anapole form factor of the deuteron using effective field theory. The momentum dependence of the anapole form factor is different from that of the matrix element of the strange currents in the deuteron, which may provide a way for disentangling these two competing effects when analyzing parity-violating electron-deuteron scattering experiments. We give closed form expressions for both the form factor and integrals often encountered in the NN effective field theory.
π SIMILAR VOLUMES
The electromagnetic form factor of deuteron is calculated here on the basis of a model of hadrons which incorporates a particular lepton-hadron relation. In view of this model, the pionic electromagnetic form factor is found to be the main contributing factor and when double scattering effect as env
Effective field theory, including pions, provides a consistent and systematic description of nucleon-nucleon strong interactions up to center-of-mass momentum p ~ 300 MeV per nucleon. We describe the inclusion of hadronic parity violation into this effective field theory and find an analytic form fo