Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 9, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP09(2013)139
Keywords
e plus -e- Experiments; Charm physics; Branching fraction; Flavor physics; Rare decay
Categories
Funding
- Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan
- Japan Society for the Promotion of Science (JSPS)
- Tau-Lepton Physics Research Center of Nagoya University
- Australian Research Council
- Australian Department of Industry, Innovation, Science and Research
- Austrian Science Fund [P 22742-N16]
- National Natural Science Foundation of China [10575109, 10775142, 10875115, 10825524]
- Ministry of Education, Youth and Sports of the Czech Republic [MSM0021620859]
- Carl Zeiss Foundation
- Deutsche Forschungsgemeinschaft and the VolkswagenStiftung
- Department of Science and Technology of India
- Istituto Nazionale di Fisica Nucleare of Italy
- BK21 and WCU program of the Ministry Education Science and Technology, National Research Foundation of Korea [2010-0021174, 2011-0029457, 2012-0008143, 2012R1A1A2008330]
- BRL program under NRF [KRF-2011-0020333]
- GSDC of the Korea Institute of Science and Technology Information
- Polish Ministry of Science and Higher Education and the National Science Center
- Ministry of Education and Science of the Russian Federation
- Russian Federal Agency for Atomic Energy
- Slovenian Research Agency
- Basque Foundation for Science (IKERBASQUE)
- UPV/EHU under program UFI [11/55]
- Swiss National Science Foundation
- National Science Council
- Ministry of Education of Taiwan
- U.S. Department of Energy
- National Science Foundation
- MEXT for Science Research in a Priority Area (New Development of Flavor Physics)
- JSPS for Creative Scientific Research (Evolution of Tau-lepton Physics)
- Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan
- Japan Society for the Promotion of Science (JSPS)
- Tau-Lepton Physics Research Center of Nagoya University
- Australian Research Council
- Australian Department of Industry, Innovation, Science and Research
- Austrian Science Fund [P 22742-N16]
- National Natural Science Foundation of China [10575109, 10775142, 10875115, 10825524]
- Ministry of Education, Youth and Sports of the Czech Republic [MSM0021620859]
- Carl Zeiss Foundation
- Deutsche Forschungsgemeinschaft and the VolkswagenStiftung
- Department of Science and Technology of India
- Istituto Nazionale di Fisica Nucleare of Italy
- BK21 and WCU program of the Ministry Education Science and Technology, National Research Foundation of Korea [2010-0021174, 2011-0029457, 2012-0008143, 2012R1A1A2008330]
- BRL program under NRF [KRF-2011-0020333]
- GSDC of the Korea Institute of Science and Technology Information
- Polish Ministry of Science and Higher Education and the National Science Center
- Ministry of Education and Science of the Russian Federation
- Russian Federal Agency for Atomic Energy
- Slovenian Research Agency
- Basque Foundation for Science (IKERBASQUE)
- UPV/EHU under program UFI [11/55]
- Swiss National Science Foundation
- National Science Council
- Ministry of Education of Taiwan
- U.S. Department of Energy
- National Science Foundation
- MEXT for Science Research in a Priority Area (New Development of Flavor Physics)
- JSPS for Creative Scientific Research (Evolution of Tau-lepton Physics)
- Science and Technology Facilities Council [ST/K003410/1] Funding Source: researchfish
- STFC [ST/K003410/1] Funding Source: UKRI
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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. The results 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(+) meson decay constant fD(s) = (255.5 +/- 4.2 +/- 5.1) MeV. We find no significant signal for D-s(+) -> e(+)nu(e) decays and set an upper limit of B(D-s(+) -> e(+)nu(e)) < 1.0(0.83) +/- 10(-4) at 95% (90%) con fi dence level.
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