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

University of Cincinnati
University of Tabuk
The Graduate University for Advanced Studies
High Energy Accelerator Research Organization, Tsukuba
The University of Tokyo
Pacific Northwest National Laboratory
Alikhanov Institute for Theoretical and Experimental Physics
Moscow Institute of Physics and Technology
Tata Institute of Fundamental Research
King Abdulaziz City for Science and Technology
Indian Institute of Technology Bhubaneswar
The University of Sydney
University of Melbourne
Indian Institute of Technology Madras
University of South Carolina
Indian Institute of Technology Guwahati
Jožef Stefan Institute
RAS - Budker Institute of Nuclear Physics
Novosibirsk State University
H. Niewodniczanski Institute of Nuclear Physics
University of Maribor
University of Hawai'i at Mānoa
Charles University
Max Planck Institute for Physics (Werner Heisenberg Institute)
National Central University
Hanyang University
Korea Institute of Science and Technology Information
Sungkyunkwan University
Wayne State University
Technische Universität München
Moscow Engineering Physics Institute
Karlsruhe Institute of Technology
Technical University of Munich

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34 Scopus citations

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{db297ac6a1db4d4880fb0219fd20440e,

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)]{\texttimes}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 Kang, \{K. H.\} and Kim, \{H. J.\} and Kim, \{M. J.\}",

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

year = "2016",

month = apr,

day = "19",

doi = "10.1103/PhysRevLett.116.161801",

language = "English",

volume = "116",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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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 - Kang, K. H.

AU - Kim, H. J.

AU - Kim, M. J.

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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