Measurement of ${V}_{ud}$ with $0^+\rightarrow0^+$ nuclear beta decays
| Pub type: | Inproceedings |
| Citation: | hardy2013measurement |
| Status: | Published |
| Journal: | AIP Conference Proceedings |
| Booktitle: | 11th International Conference on the Intersections of Particle and Nuclear Physics (CIPANP 2012) |
| Series: | 11th International Conference on the Intersections of Particle and Nuclear Physics (CIPANP 2012) |
| Volume: | 1560 |
| Year: | 2013 |
| Month: | October |
| Pages: | 109-113 |
| Location: | St. Petersburg, FL |
| Note: | 29 May–3 June 2012 |
| URL: | http://scitation.aip.org/conte... |
| DOI: | 10.1063/1.4826730 |
| Abstract: | Results from superallowed 0+→0+ nuclear beta decays today provide the best value for Vud , with an uncertainty of ±0.02%. Some 150 independent measurements of 13 separate superallowed transitions covering a wide range of parent nuclei from 10C to 74Rb constitute a very robust data set. Excellent consistency among the average results for all 13 transitions - an expected consequence of the conservation of vector current (CVC) - also confirms the validity of the small transition-dependent theoretical corrections that have been applied to account for isospin-symmetry breaking. With CVC consistency established, the value of the vector coupling constant, GV, has been extracted from the data and used to determine |Vud| = 0.97425 (22). |
| Month_val: | 10 |
| Userfields: | issue = {1} |
| Sig contrib: | J. C. Hardy |
| Keywords: | Vud, β decay |
| Authors: | |
| Added by: | [VT] |
| Total mark: | 0 |
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