Observation of the Decay Bs0 →k0 K  0

Belle Collaboration

doi:10.1103/PhysRevLett.116.161801

Observation of the Decay Bs0 →k0 K 0

Belle Collaboration

Chair of Physics I

Univ. of Cincinnati
University of Tabuk
KEK and Graduate University for Advanced Studies (Sokendai)
High Energy Accelerator Research Organization (KEK)
University of Tokyo
Pacific Northwest National Laboratory
ITEP
Moscow Institute of Physics and Technology
Tata Institute of Fundamental Research, Mumbai
King Abdulaziz City for Science and Technology
Indian Institute of Technology Bhubaneswar
University of Sydney
University of Melbourne
Indian Institute of Technology Madras
University of South Carolina
Indian Institute of Technology Guwahati
Jožef Stefan Institute
Budker Institute of Nuclear Physics (SB RAS)
Novosibirsk State University
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
University of Maribor
University of Hawaii
Charles University
Max-Planck-Institut für Physik
National Central University
Hanyang University
Korea Institute of Science and Technology Information
Sungkyunkwan University
Wayne State University
Cluster of Excellence E-conversion
National Research Nuclear University MEPhI
Humanoid Technologies Lab (H2T)
Technical University of Munich
Nagoya University
Nara Women's University
Beijing University
National Taiwan University
Tohoku University
Indiana University Bloomington
Kyungpook National University
Kennesaw State University
Chonnam National University
Niigata University
Soongsil University
Korea University
Univ. of Ljubljana
University of Munich
Punjab Agricultural University
Tokyo Metropolitan University
Yonsei University
University of Science and Technology of China
Virginia Polytechnic Institute and State University
University of Pittsburgh
Utkal University
INFN Sez. di Torino
Osaka Prefecture University
Aligarh Muslim University
Toho University
Kanagawa University
Luther College, Decorah
University of Bonn
Deutsches Elektronen-Synchrotron (DESY)
Seoul National University
EPFL
Biodonostia Health Research Institute-CIBERNED-UPV-EHU
Basque Foundation for Science
Österreichische Akademie der Wissenschaften
Yamagata University
Tokyo Institute of Technology
Institute for High Energy Physics (IHEP)
University of Nova Gorica
Gifu University
University of Torino
Justus-Liebig-Universität Gießen
National United University Taiwan
University of Florida
Institute of High Energy Physics Chinese Academy of Science

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Abstract

We measure the decay Bs0→K0K0 using data collected at the ?(5S) resonance with the Belle detector at the KEKB e+e- collider. The data sample used corresponds to an integrated luminosity of 121.4 fb-1. We measure a branching fraction B(Bs0→K0K0)=[19.6-5.1+5.8(stat)±1.0(syst)±2.0(NBs0Bs0)]×10-6 with a significance of 5.1 standard deviations. This measurement constitutes the first observation of this decay.

Original language	English
Article number	161801
Journal	Physical Review Letters
Volume	116
Issue number	16
DOIs	https://doi.org/10.1103/PhysRevLett.116.161801
State	Published - 19 Apr 2016

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10.1103/PhysRevLett.116.161801

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@article{cc4add8eff6845ce9a18c07b9b0581bc,

title = "Observation of the Decay Bs0 →k0 K 0",

abstract = "We measure the decay Bs0→K0K0 using data collected at the ?(5S) resonance with the Belle detector at the KEKB e+e- collider. The data sample used corresponds to an integrated luminosity of 121.4 fb-1. We measure a branching fraction B(Bs0→K0K0)=[19.6-5.1+5.8(stat)±1.0(syst)±2.0(NBs0Bs0)]×10-6 with a significance of 5.1 standard deviations. This measurement constitutes the first observation of this decay.",

author = "\{Belle Collaboration\} and B. Pal and Schwartz, \{A. J.\} and A. Abdesselam and I. Adachi and H. Aihara and Asner, \{D. M.\} and T. Aushev and R. Ayad and T. Aziz and V. Babu and I. Badhrees and S. Bahinipati and Bakich, \{A. M.\} and E. Barberio and P. Behera and V. Bhardwaj and B. Bhuyan and J. Biswal and A. Bobrov and A. Bozek and M. Bra{\v c}ko and Browder, \{T. E.\} and D. {\v C}ervenkov and V. Chekelian and A. Chen and Cheon, \{B. G.\} and R. Chistov and K. Cho and V. Chobanova and Y. Choi and D. Cinabro and J. Dalseno and N. Dash and Z. Dole{\v Z}al and Z. Dr{\'a}sal and A. Drutskoy and D. Dutta and S. Eidelman and H. Farhat and Fast, \{J. E.\} and Fulsom, \{B. G.\} and V. Gaur and A. Garmash and R. Gillard and Goh, \{Y. M.\} and P. Goldenzweig and D. Greenwald and O. Grzymkowska and J. Haba and S. Paul",

note = "Publisher Copyright: {\textcopyright} 2016 American Physical Society.",

year = "2016",

month = apr,

day = "19",

doi = "10.1103/PhysRevLett.116.161801",

language = "English",

volume = "116",

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issn = "0031-9007",

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TY - JOUR

T1 - Observation of the Decay Bs0 →k0 K 0

AU - Belle Collaboration

AU - Pal, B.

AU - Schwartz, A. J.

AU - Abdesselam, A.

AU - Adachi, I.

AU - Aihara, H.

AU - Asner, D. M.

AU - Aushev, T.

AU - Ayad, R.

AU - Aziz, T.

AU - Babu, V.

AU - Badhrees, I.

AU - Bahinipati, S.

AU - Bakich, A. M.

AU - Barberio, E.

AU - Behera, P.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chistov, R.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dalseno, J.

AU - Dash, N.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Drutskoy, A.

AU - Dutta, D.

AU - Eidelman, S.

AU - Farhat, H.

AU - Fast, J. E.

AU - Fulsom, B. G.

AU - Gaur, V.

AU - Garmash, A.

AU - Gillard, R.

AU - Goh, Y. M.

AU - Goldenzweig, P.

AU - Greenwald, D.

AU - Grzymkowska, O.

AU - Haba, J.

AU - Paul, S.

PY - 2016/4/19

Y1 - 2016/4/19

N2 - We measure the decay Bs0→K0K0 using data collected at the ?(5S) resonance with the Belle detector at the KEKB e+e- collider. The data sample used corresponds to an integrated luminosity of 121.4 fb-1. We measure a branching fraction B(Bs0→K0K0)=[19.6-5.1+5.8(stat)±1.0(syst)±2.0(NBs0Bs0)]×10-6 with a significance of 5.1 standard deviations. This measurement constitutes the first observation of this decay.

AB - We measure the decay Bs0→K0K0 using data collected at the ?(5S) resonance with the Belle detector at the KEKB e+e- collider. The data sample used corresponds to an integrated luminosity of 121.4 fb-1. We measure a branching fraction B(Bs0→K0K0)=[19.6-5.1+5.8(stat)±1.0(syst)±2.0(NBs0Bs0)]×10-6 with a significance of 5.1 standard deviations. This measurement constitutes the first observation of this decay.

UR - https://www.scopus.com/pages/publications/84964308186

U2 - 10.1103/PhysRevLett.116.161801

DO - 10.1103/PhysRevLett.116.161801

M3 - Article

AN - SCOPUS:84964308186

SN - 0031-9007

VL - 116

JO - Physical Review Letters

JF - Physical Review Letters

IS - 16

M1 - 161801

ER -

Observation of the Decay Bs0 →k0 K 0

Abstract

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