Comment on ``Improved Calculation of Electroweak Radiative Corrections and the Value of $V_{ud}$ by Marciano and Sirlin''
| dc.creator | Fukugita, Masataka | |
| dc.creator | Kubota, Takahiro | |
| dc.date | 2006-04-17 | |
| dc.date | 2006-05-19 | |
| dc.date.accessioned | 2026-07-07T07:09:57Z | |
| dc.date.available | 2026-07-07T07:09:57Z | |
| dc.description | In a recent letter Marciano and Sirlin (Phys. Rev. Lett. 96, 032002, (2006)) presented an improved calculation of the electroweak radiative correction to derive a precision value of the quark mixing angle $V_{ud}$ by improving the continuation from long to short distance contributions. At the precision level considered by them, however, there is a more important contribution from weak magnetism that was not included by their calculation. The addition of the weak magnetism contribution to the superallowed beta-decay radiative corrections lowers $V_{ud}$ by 0.00023, which is compared with the increase 0.00007 of Marciano and Sirlin and their error estimate $\pm 0.0002$. | |
| dc.description | This paper has been withdrawn by the authors due to an error in the calculation on which the present work is based | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0604142 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0604142 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/111273 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Comment on ``Improved Calculation of Electroweak Radiative Corrections and the Value of $V_{ud}$ by Marciano and Sirlin'' | |
| dc.type | text |