2024-03-29T09:28:04Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/331022017-01-27T10:43:01Zcom_10261_61com_10261_4col_10261_314
Vus and ms from Hadronic τ Decays
Gámiz, Elvira
Jamin, Matthias
Pich, Antonio
Prades, Joaquim
Schwab, Félix
4 páginas, 1 figura, 1 tabla.-- PACS numbers: 12.15.Hh, 11.55.Hx, 12.38.Lg, 14.60.Fg.
Recent experimental results on hadronic τ decays into strange particles by the OPAL Collaboration are employed to determine Vus and ms from moments of the invariant mass distribution. Our results are Vus=0.2208±0.0034 and ms(2 GeV)=81±22 MeV. The error on Vus is dominated by experiment and should be improvable in the future. Nevertheless, already now our result is competitive with the standard extraction of Vus from Ke3 decays, and it is compatible with unitarity.
This work has been supported in part by the
European Union RTN Network EURIDICE Grant
No. HPRN-CT2002-00311 (A. P. and J. P.), by MCYT
(Spain) and FEDER (EU) Grants No. FPA2003-09298-
C02-01 (J. P.), and No. FPA-2001-3031 (A. P. and M. J.),
and by Junta de Andalucía Grant No. FQM-101 (J. P.) and
by the European Commission Grant No. MEIF-CT-2003-
501309 (E. G.).
Peer reviewed
2011-03-07T10:41:55Z
2011-03-07T10:41:55Z
2005-01-14
artículo
http://purl.org/coar/resource_type/c_6501
Physical Review Letters 94(1): 011803 (2005)
0031-9007
http://hdl.handle.net/10261/33102
10.1103/PhysRevLett.94.011803
en
http://dx.doi.org/10.1103/PhysRevLett.94.011803
open
American Physical Society