Hadronic parity violation in $\vec{n} p \to d γ$ with effective field theory
| dc.creator | Hyun, C. H. | |
| dc.creator | Ando, S. | |
| dc.creator | Desplanques, B. | |
| dc.date | 2006-11-07 | |
| dc.date | 2007-06-12 | |
| dc.date.accessioned | 2026-07-07T11:03:23Z | |
| dc.date.available | 2026-07-07T11:03:23Z | |
| dc.description | The parity-violating nucleon-nucleon (NN) potential is considered up to next-to-next-to leading order in heavy-baryon chiral perturbation theory. We include one-pion exchange at leading order and the two-pion exchange and two-nucleon contact terms at next-to-next-to-leading order. The effects of intermediate (two-pion exchange) and short-range (two-nucleon contact) terms are probed by calculating the photon asymmetry $A_γ$ in $\vec{n} p \to d γ$ employing Siegert's theorem and an accurate phenomenological potential for the parity-conserving NN interaction. We explore in detail the uncertainties due to the parameters that control the contribution of the short-range interaction. We obtain about 20% uncertainty in the value of $A_γ$ up to the next-to-next-to leading order. We discuss the implication of this uncertainty for the determination of the weak pion-nucleon coupling constant and how the uncertainty can be reduced. | |
| dc.description | Minor changes in the text. To appear in PLB | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0611018 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0611018 | |
| dc.identifier | Phys.Lett.B651:257-262,2007 | |
| dc.identifier | doi:10.1016/j.physletb.2007.06.011 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188574 | |
| dc.subject | Nuclear Theory | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Hadronic parity violation in $\vec{n} p \to d γ$ with effective field theory | |
| dc.type | text |