Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12128/9327| Title: | Complete two loop electroweak contributions to the muon lifetime in the standard model |
| Authors: | Awramik, M. Czakon, Michał |
| Keywords: | bosons; loops; Higgs boson |
| Issue Date: | 2003 |
| Citation: | Physics Letters B, Vol. 568, iss. 1-2 (2003), s. 48-54 |
| Abstract: | An independent result for the two loop fermionic contributions to the muon lifetime in the Standard Model is obtained and slight deviations in the prediction of the W boson mass are found with respect to [Phys. Lett. B 495 (2000) 338; Nucl. Phys. B 632 (2002) 189]. Supplied with the bosonic contributions from [Phys. Rev. Lett. 89 (2002) 241801; hep-ph/0211041; Phys. Lett. B 551 (2003) 111; hep-ph/0209084], the shift, due to the complete electroweak contributions, varies from -2.4 to -0.6 MeV. Additionally, a new test of the matching procedure defining the Fermi constant is presented, which uses fermion masses as infrared regulators. |
| URI: | http://hdl.handle.net/20.500.12128/9327 |
| DOI: | 10.1016/j.physletb.2003.06.007 |
| ISSN: | 0370-2693 |
| Appears in Collections: | Artykuły (WNŚiT) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Awramik_Complete_two_loop_electroweak.pdf | 403,81 kB | Adobe PDF | View/Open |
Uznanie Autorstwa 3.0 Polska Creative Commons License
