Measurements of branching fractions of leptonic and hadronic D-s(+) meson decays and extraction of the D-s(+) meson decay constant

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10193193" target="_blank" >RIV/00216208:11320/13:10193193 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1007/JHEP09(2013)139" target="_blank" >http://dx.doi.org/10.1007/JHEP09(2013)139</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP09(2013)139" target="_blank" >10.1007/JHEP09(2013)139</a>

Result language

angličtina

Original language name

Measurements of branching fractions of leptonic and hadronic D-s(+) meson decays and extraction of the D-s(+) meson decay constant

Original language description

We present measurements of absolute branching fractions of hadronic and leptonic D-s(+) decays to K-K+pi(+), ($) over bar (0) ($) over bar (+), eta pi(+), mu(+)nu(mu) and tau(+)nu(tau) and report a search for the leptonic D-s(+) -> e(+) nu(e) decays. Theresults are obtained from a data sample of 913 fb(-1) collected at or near the gamma (4S) and gamma (5S) resonances with the Belle detector at the KEKB asymmetric- energy e(+)e(-) collider. The branching fractions of hadronic decays are measured to be B(D-s(+) -> K-K+pi(+)) = (5.06 +/- 0: 15 +/- 0.21)%, B(D-s(+) -> ($) over bar (0) ($) over bar (+)) = (2.95 +/- 0.11 +/- 0.09)%, B(D-s(+) -> eta pi(+)) = (1.82 +/- 0.14 +/- 0.07)%, where the fi rst and second uncertainties are statistical and systematic,respectively. The branching fractions of leptonic decays are measured to be B(D-s(+) -> mu(+)nu(mu)) = (0.531 +/- 0.028 +/- 0.020)%, B(D-s(+) -> tau(+)nu(tau)) = (5.70 +/- 0.21(-0.30)(+0.31))%, which are combined to determine the D-s(+) m

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BF - Elementary particle theory and high energy physics

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

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Volume of the periodical

1

Issue of the periodical within the volume

9

Country of publishing house

DE - GERMANY

Number of pages

35

Pages from-to

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UT code for WoS article

000325024000003

EID of the result in the Scopus database

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