Measurement of the absolute branching fraction of D+&rarr;K0e+ve via K0&rarr;&pi;0&pi;0

M. Ablikim; M. N. Achasov; X. C. Ai; O. Albayrak; M. Albecht; D. J. Ambrose; A. Amoroso

doi:10.1088/1674-1137/40/11/113001

Chinese Physics C> 2016, Vol. 40> Issue(11) : 113001 DOI: 10.1088/1674-1137/40/11/113001

Measurement of the absolute branching fraction of D+→K0e+ve via K0→π0π0

M. Ablikim ¹ ,
M. N. Achasov ^2,3 ,
X. C. Ai ¹ ,
O. Albayrak ⁵ ,
M. Albecht ⁴ ,
D. J. Ambrose ⁶ ,
A. Amoroso ^7,8

1.
Institute of High Energy Physics, Beijing 100049, China
2.
G. I. Budker Institute of Nuclear Physics SB RAS(BINP), Novosibirsk 630090, Russia
3.
Also at the Novosibirsk State University, Novosibirsk, 630090, Russia
4.
Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
5.
Bochum Ruhr-University, D-44780 Bochum, Germany
6.
University of Rochester, Rochester, New York 14627, USA
7.
University of Turin, I-10125, Turin, Italy
8.
INFN, I-10125, Turin, Italy Turin, Italy

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Abstract：
By analyzing 2.93 fb^-1 data collected at the center-of-mass energy √s=3.773 GeV with the BESIII detector, we measure the absolute branching fraction of the semileptonic decay D⁺→K⁰e⁺v_e to be B(D⁺→K⁰e⁺v_e)=(8.59±0.14±0.21)% using K⁰→K_S⁰→π⁰π⁰, where the first uncertainty is statistical and the second systematic. Our result is consistent with previous measurements within uncertainties..
- charmed mesons ,
- semileptonic decays ,
- absolute branching fraction ,
- BESIII/BEPCII

References

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M. Ablikim, M. N. Achasov, X. C. Ai, O. Albayrak, M. Albecht, D. J. Ambrose and A. Amoroso. Measurement of the absolute branching fraction of D+→K0e+ve via K0→π0π0[J]. Chinese Physics C, 2016, 40(11): 113001. doi: 10.1088/1674-1137/40/11/113001

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Received: 2016-05-03
Revised: 2016-06-29

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Supported by National Key Basic Research Program of China (2009CB825204, 2015CB856700), National Natural Science Foundation of China (NSFC) (10935007, 11125525, 11235011, 11305180, 11322544, 11335008, 11425524, 11475123),Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program, CAS Center for Excellence in Particle Physics (CCEPP),Collaborative Innovation Center for Particles and Interactions (CICPI), Joint Large-Scale Scientific Facility Funds of NSFC and CAS (11179007, U1232201, U1332201, U1532101), CAS (KJCX2-YW-N29, KJCX2-YW-N45), 100 Talents Program of CAS, National 1000 Talents Program of China, INPAC and Shanghai Key Laboratory for Particle Physics and Cosmology, German Research Foundation DFG (Collaborative Research Center CRC-1044), Istituto Nazionale di Fisica Nucleare, Italy, Koninklijke Nederlandse Akademie van Wetenschappen (KNAW) (530-4CDP03), Ministry of Development of Turkey (DPT2006K-120470), National Natural Science Foundation of China (NSFC) (11405046, U1332103), Russian Foundation for Basic Research (14-07-91152), Swedish Resarch Council, U. S. Department of Energy (DE-FG02-04ER41291, DE-FG02-05ER41374, DE-SC0012069, DESC0010118), U.S. National Science Foundation, University of Groningen (RuG) and Helmholtzzentrum fuer Schwerionenforschung GmbH (GSI), Darmstadt, WCU Program of National Research Foundation of Korea (R32-2008-000-10155-0)

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沈阳化工大学材料科学与工程学院沈阳 110142

Measurement of the absolute branching fraction of D+→K0e+ve via K0→π0π0

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