P- and T-violating $πN N$ form factor
| dc.creator | Kondratyuk, S. | |
| dc.creator | Blunden, P. G. | |
| dc.date | 2006-09-25 | |
| dc.date | 2006-12-16 | |
| dc.date.accessioned | 2026-07-07T11:07:38Z | |
| dc.date.available | 2026-07-07T11:07:38Z | |
| dc.description | The form factor of the parity and time-reversal violating (PTV) pion-nucleon interaction is calculated from one-loop vertex diagrams. The degrees of freedom included in the effective lagrangian are nucleons, pions, $η$, $ρ$ and $ω$ mesons. We show that by studying the form factor one can constrain the PTV meson-nucleon coupling constants. We evaluate the mean square radius associated with the PTV $πN N$ vertex. Using the mean square radius, we estimate the effect of the PTV $πN N$ vertex on the neutron electric dipole moment, and find a very small correction. We also extract the renormalisation group $β$ function and use it to discuss evolution of the PTV $πN N$ coupling constant beyond the hadronic mass scale. | |
| dc.description | 14 pages, 2 figures. Added discussion of neutron EDM; to be published in Nucl.Phys.A | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0609072 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0609072 | |
| dc.identifier | Nucl.Phys.A785:351-364,2007 | |
| dc.identifier | doi:10.1016/j.nuclphysa.2006.12.054 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/189909 | |
| dc.subject | Nuclear Theory | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | P- and T-violating $πN N$ form factor | |
| dc.type | text |