Axial Vector Current and Induced Pseudoscalar Coupling Constant on $μ^- p \to n ν_μ γ$ reaction
| dc.creator | Cheon, Il-Tong | |
| dc.creator | Cheoun, Myung KI | |
| dc.date | 1999-06-14 | |
| dc.date.accessioned | 2026-07-07T05:43:08Z | |
| dc.date.available | 2026-07-07T05:43:08Z | |
| dc.description | The recent TRIUMF experiment for $μ^- p \to n ν_μ γ$ gave a surprising result that the induced pseudoscalar coupling constant $g_P$ was larger than the value obtained from $μ^- p \to n ν_μ$ experiment as much as 44 %. Reexamining axial vector current on the gauge theory, we found an additional term to the matrix element of Beder and Fearing which was used to extract the $g_P$ value from the measured photon energy spectrum. This additional term, which is self gauge invariant, plays a key role in restoring the reliability of $g_P (- 0.88 m_μ^2) = 6.77 g_A (0)$. Comparison with conventional approaches is also presented. | |
| dc.description | 14 pages. 2 figures | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9906035 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9906035 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/83192 | |
| dc.subject | Nuclear Theory | |
| dc.title | Axial Vector Current and Induced Pseudoscalar Coupling Constant on $μ^- p \to n ν_μ γ$ reaction | |
| dc.type | text |