Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/68533
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Fermi matrix element with isospin breaking |
Author: | Guichon, P. Thomas, A. Saito, K. |
Citation: | Physics Letters B: Nuclear Physics and Particle Physics, 2011; 696(5):536-538 |
Publisher: | Elsevier Science BV |
Issue Date: | 2011 |
ISSN: | 0370-2693 |
Statement of Responsibility: | P.A.M. Guichon, A.W. Thomas and K. Saito |
Abstract: | Prompted by the level of accuracy now being achieved in tests of the unitarity of the CKM matrix, we consider the possible modification of the Fermi matrix element for the β-decay of a neutron, including possible in-medium and isospin violating corrections. While the nuclear modifications lead to very small corrections once the Behrends-Sirlin-Ademollo-Gatto theorem is respected, the effect of the u-d mass difference on the conclusion concerning Vud is no longer insignificant. Indeed, we suggest that the correction to the value of |Vud|2+|Vus|2+|Vub|2 is at the level of 10-4. © 2011 Elsevier B.V. |
Keywords: | CKM matrix unitarity Superallowed Fermi beta-decay |
Rights: | Copyright 2011 Elsevier B.V. All rights reserved. |
DOI: | 10.1016/j.physletb.2011.01.005 |
Description (link): | http://www.journals.elsevier.com/physics-letters-b/ |
Published version: | http://dx.doi.org/10.1016/j.physletb.2011.01.005 |
Appears in Collections: | Aurora harvest 5 Physics publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.