Observation of Zb (10610) and Zb (10650) Decaying to B Mesons

(Belle Collaboration)

doi:10.1103/PhysRevLett.116.212001

Observation of Zb (10610) and Zb (10650) Decaying to B Mesons

(Belle Collaboration)

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

Research output: Contribution to journal › Article › peer-review

101 Scopus citations

Abstract

We report the analysis of the three-body e+e-→BBπ±, BB∗π±, and B∗B∗π± processes, including the first observations of the Zb±(10610)→[BB∗+c.c.]± and Zb±(10650)→[B∗B∗]± transitions that are found to dominate the corresponding final states. We measure Born cross sections for the three-body production of σ(e+e-→[BB∗+c.c.]±π)=[17.4±1.6(stat)±1.9(syst)] pb and σ(e+e-→[B∗B∗]±π)=[8.75±1.15(stat)±1.04(syst)] pb and set a 90% C.L. upper limit of σ(e+e-→[BB]±π)<2.9 pb. The results are based on a 121.4 fb-1 data sample collected with the Belle detector at a center-of-mass energy near the (10860) peak.

Original language	English
Article number	212001
Journal	Physical Review Letters
Volume	116
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.116.212001
State	Published - 24 May 2016

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10.1103/PhysRevLett.116.212001

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@article{dce52830af9f4988ac0c5d7472b44b4f,

title = "Observation of Zb (10610) and Zb (10650) Decaying to B Mesons",

abstract = "We report the analysis of the three-body e+e-→BBπ±, BB∗π±, and B∗B∗π± processes, including the first observations of the Zb±(10610)→[BB∗+c.c.]± and Zb±(10650)→[B∗B∗]± transitions that are found to dominate the corresponding final states. We measure Born cross sections for the three-body production of σ(e+e-→[BB∗+c.c.]±π)=[17.4±1.6(stat)±1.9(syst)] pb and σ(e+e-→[B∗B∗]±π)=[8.75±1.15(stat)±1.04(syst)] pb and set a 90\% C.L. upper limit of σ(e+e-→[BB]±π)<2.9 pb. The results are based on a 121.4 fb-1 data sample collected with the Belle detector at a center-of-mass energy near the (10860) peak.",

author = "\{(Belle Collaboration)\} and A. Garmash 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 Bakich, \{A. M.\} and P. Behera and V. Bhardwaj and B. Bhuyan and A. Bobrov and A. Bondar and G. Bonvicini 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 K. Chilikin and K. Cho and V. Chobanova and Y. Choi and D. Cinabro and J. Dalseno and M. Danilov and N. Dash and Z. Dole{\v Z}al and A. Drutskoy and D. Dutta and S. Eidelman and D. Epifanov and H. Farhat and Fast, \{J. E.\} and T. Ferber and Fulsom, \{B. G.\} and V. Gaur and N. Gabyshev and R. Gillard and Goh, \{Y. M.\} and P. Goldenzweig and B. Golob and T. Hara and Kookhyun Kang and Kim, \{M. J.\}",

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

year = "2016",

month = may,

day = "24",

doi = "10.1103/PhysRevLett.116.212001",

language = "English",

volume = "116",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "21",

}

TY - JOUR

T1 - Observation of Zb (10610) and Zb (10650) Decaying to B Mesons

AU - (Belle Collaboration)

AU - Garmash, A.

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 - Bakich, A. M.

AU - Behera, P.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Bobrov, A.

AU - Bondar, A.

AU - Bonvicini, G.

AU - Bozek, A.

AU - Bračko, M.

AU - Browder, T. E.

AU - Červenkov, D.

AU - Chekelian, V.

AU - Chen, A.

AU - Cheon, B. G.

AU - Chilikin, K.

AU - Cho, K.

AU - Chobanova, V.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dalseno, J.

AU - Danilov, M.

AU - Dash, N.

AU - DoleŽal, Z.

AU - Drutskoy, A.

AU - Dutta, D.

AU - Eidelman, S.

AU - Epifanov, D.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Gillard, R.

AU - Goh, Y. M.

AU - Goldenzweig, P.

AU - Golob, B.

AU - Hara, T.

AU - Kang, Kookhyun

AU - Kim, M. J.

PY - 2016/5/24

Y1 - 2016/5/24

N2 - We report the analysis of the three-body e+e-→BBπ±, BB∗π±, and B∗B∗π± processes, including the first observations of the Zb±(10610)→[BB∗+c.c.]± and Zb±(10650)→[B∗B∗]± transitions that are found to dominate the corresponding final states. We measure Born cross sections for the three-body production of σ(e+e-→[BB∗+c.c.]±π)=[17.4±1.6(stat)±1.9(syst)] pb and σ(e+e-→[B∗B∗]±π)=[8.75±1.15(stat)±1.04(syst)] pb and set a 90% C.L. upper limit of σ(e+e-→[BB]±π)<2.9 pb. The results are based on a 121.4 fb-1 data sample collected with the Belle detector at a center-of-mass energy near the (10860) peak.

AB - We report the analysis of the three-body e+e-→BBπ±, BB∗π±, and B∗B∗π± processes, including the first observations of the Zb±(10610)→[BB∗+c.c.]± and Zb±(10650)→[B∗B∗]± transitions that are found to dominate the corresponding final states. We measure Born cross sections for the three-body production of σ(e+e-→[BB∗+c.c.]±π)=[17.4±1.6(stat)±1.9(syst)] pb and σ(e+e-→[B∗B∗]±π)=[8.75±1.15(stat)±1.04(syst)] pb and set a 90% C.L. upper limit of σ(e+e-→[BB]±π)<2.9 pb. The results are based on a 121.4 fb-1 data sample collected with the Belle detector at a center-of-mass energy near the (10860) peak.

UR - https://www.scopus.com/pages/publications/84971483368

U2 - 10.1103/PhysRevLett.116.212001

DO - 10.1103/PhysRevLett.116.212001

M3 - Article

AN - SCOPUS:84971483368

SN - 0031-9007

VL - 116

JO - Physical Review Letters

JF - Physical Review Letters

IS - 21

M1 - 212001

ER -

Observation of Zb (10610) and Zb (10650) Decaying to B Mesons

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