V-us and m(s) from hadronic tau decays
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V-us and m(s) from hadronic tau decays

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V-us and m(s) from hadronic tau decays

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dc.contributor.author Gámiz, Elvira
dc.contributor.author Jamin, Matthias
dc.contributor.author Pich Zardoya, Antonio
dc.contributor.author Prades Hernández, Joaquim
dc.contributor.author Schwab, Felix
dc.date.accessioned 2015-02-27T10:00:32Z
dc.date.available 2015-02-27T10:00:32Z
dc.date.issued 2005
dc.identifier.uri http://hdl.handle.net/10550/42490
dc.description.abstract Recent experimental results on hadronic tau decays into strange particles by the OPAL Collaboration are employed to determine V-us and m(s) from moments of the invariant mass distribution. Our results are V-us=0.2208+/-0.0034 and m(s)(2 GeV)=81+/-22 MeV. The error on V-us is dominated by experiment and should be improvable in the future. Nevertheless, already now our result is competitive with the standard extraction of V-us from K-e3 decays, and it is compatible with unitarity.
dc.language.iso eng
dc.relation.ispartof Physical Review Letters, 2005, vol. 94, num. 1, p. 011803-1-011803-4
dc.source Gámiz, Elvira Jamin, Matthias Pich Zardoya, Antonio Prades Hernández, Joaquim Schwab, Felix 2005 V-us and m(s) from hadronic tau decays Physical Review Letters 94 1 011803-1 011803-4
dc.subject Física
dc.title V-us and m(s) from hadronic tau decays
dc.type journal article es_ES
dc.date.updated 2015-02-27T10:00:33Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevLett.94.011803
dc.identifier.idgrec 025693
dc.rights.accessRights open access es_ES

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