Observation of an alternative χc0(2P) candidate in e+e−→J/ψDD¯

(Belle Collaboration)

doi:10.1103/PhysRevD.95.112003

Observation of an alternative χc0(2P) candidate in e+e−→J/ψDD¯

(Belle Collaboration)

Chair of Physics I

P.N. Lebedev Physical Institute of the Russian Academy of Sciences
National Research Nuclear University MEPhI
KEK and Graduate University for Advanced Studies (Sokendai)
High Energy Accelerator Research Organization (KEK)
University of Tokyo
Faculty of Sciences, King Abdulaziz University
University of Tabuk
Pacific Northwest National Laboratory
Budker Institute of Nuclear Physics (SB RAS)
Novosibirsk State University
Tata Institute of Fundamental Research, Mumbai
King Abdulaziz City for Science and Technology
University of Sydney
University of Melbourne
Indian Institute of Science Education and Research Mohali
Indian Institute of Technology Guwahati
Jožef Stefan Institute
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
Indian Institute of Technology Bhubaneswar
Deutsches Elektronen-Synchrotron (DESY)
Virginia Polytechnic Institute and State University
Humanoid Technologies Lab (H2T)
Niigata University
National Taiwan University
Nagoya University
Tohoku University
Indiana University Bloomington
University of Florida
Kyungpook National University
Kennesaw State University
Chonnam National University
Moscow Institute of Physics and Technology
Soongsil University
Korea University
Univ. of Cincinnati
Univ. of Ljubljana
University of Munich
Yonsei University
Justus-Liebig-Universität Gießen
University of Science and Technology of China
Indian Institute of Technology Madras
University of Pittsburgh
University of Miyazaki
Nara Women's University
INFN Sez. di Torino
Osaka Prefecture University
Kyoto University
Toho University
Kanagawa University
Institute for Basic Science, Daejeon
Nippon Dental University
INFN Sezione di Napoli
University of Malaya
EPFL
Biodonostia Health Research Institute-CIBERNED-UPV-EHU
Basque Foundation for Science
Österreichische Akademie der Wissenschaften
Yamagata University
Beihang University
Tokyo Institute of Technology
Institute for High Energy Physics (IHEP)
Tokyo Metropolitan University
Riken
Showa Pharmaceutical University
University of Torino
Japan Atomic Energy Agency
National United University Taiwan
Institute of High Energy Physics Chinese Academy of Science
Stefan Meyer Institut für Subatomare Physik (SMI)

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

97 Scopus citations

Abstract

We perform a full amplitude analysis of the process e+e-→J/ψDD, where D refers to either D0 or D+. A new charmoniumlike state X∗(3860) that decays to DD is observed with a significance of 6.5σ. Its mass is (3862-32+26 -13+40) MeV/c2, and its width is (201-67+154 -82+88) MeV. The JPC=0++ hypothesis is favored over the 2++ hypothesis at the level of 2.5σ. The analysis is based on the 980 fb-1 data sample collected by the Belle detector at the asymmetric-energy e+e- collider KEKB.

Original language	English
Article number	112003
Journal	Physical Review D
Volume	95
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.95.112003
State	Published - 1 Jun 2017

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10.1103/PhysRevD.95.112003

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@article{7a976e6a1cd14a9e99c516711b1312d7,

title = "Observation of an alternative χc0(2P) candidate in e+e−→J/ψDD¯",

abstract = "We perform a full amplitude analysis of the process e+e-→J/ψDD, where D refers to either D0 or D+. A new charmoniumlike state X∗(3860) that decays to DD is observed with a significance of 6.5σ. Its mass is (3862-32+26 -13+40) MeV/c2, and its width is (201-67+154 -82+88) MeV. The JPC=0++ hypothesis is favored over the 2++ hypothesis at the level of 2.5σ. The analysis is based on the 980 fb-1 data sample collected by the Belle detector at the asymmetric-energy e+e- collider KEKB.",

author = "\{(Belle Collaboration)\} and K. Chilikin and I. Adachi and H. Aihara and \{Al Said\}, S. and Asner, \{D. M.\} and V. Aulchenko and R. Ayad and V. Babu and I. Badhrees and Bakich, \{A. M.\} and V. Bansal and E. Barberio and D. Besson and V. Bhardwaj and B. Bhuyan and J. Biswal and A. Bobrov and A. Bondar 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. Cho and Y. Choi and D. Cinabro and N. Dash and \{Di Carlo\}, S. and Z. Dole{\v Z}al and Z. Dr{\'a}sal and D. Dutta and S. Eidelman and H. Farhat and Fast, \{J. E.\} and T. Ferber and Fulsom, \{B. G.\} and V. Gaur and N. Gabyshev and A. Garmash and R. Gillard and P. Goldenzweig and J. Haba and T. Hara and K. Hayasaka and Hou, \{W. S.\} and K. Inami and A. Ishikawa and S. Paul",

note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

month = jun,

day = "1",

doi = "10.1103/PhysRevD.95.112003",

language = "English",

volume = "95",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "11",

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TY - JOUR

T1 - Observation of an alternative χc0(2P) candidate in e+e−→J/ψDD¯

AU - (Belle Collaboration)

AU - Chilikin, K.

AU - Adachi, I.

AU - Aihara, H.

AU - Al Said, S.

AU - Asner, D. M.

AU - Aulchenko, V.

AU - Ayad, R.

AU - Babu, V.

AU - Badhrees, I.

AU - Bakich, A. M.

AU - Bansal, V.

AU - Barberio, E.

AU - Besson, D.

AU - Bhardwaj, V.

AU - Bhuyan, B.

AU - Biswal, J.

AU - Bobrov, A.

AU - Bondar, 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 - Cho, K.

AU - Choi, Y.

AU - Cinabro, D.

AU - Dash, N.

AU - Di Carlo, S.

AU - DoleŽal, Z.

AU - Drásal, Z.

AU - Dutta, D.

AU - Eidelman, S.

AU - Farhat, H.

AU - Fast, J. E.

AU - Ferber, T.

AU - Fulsom, B. G.

AU - Gaur, V.

AU - Gabyshev, N.

AU - Garmash, A.

AU - Gillard, R.

AU - Goldenzweig, P.

AU - Haba, J.

AU - Hara, T.

AU - Hayasaka, K.

AU - Hou, W. S.

AU - Inami, K.

AU - Ishikawa, A.

AU - Paul, S.

PY - 2017/6/1

Y1 - 2017/6/1

N2 - We perform a full amplitude analysis of the process e+e-→J/ψDD, where D refers to either D0 or D+. A new charmoniumlike state X∗(3860) that decays to DD is observed with a significance of 6.5σ. Its mass is (3862-32+26 -13+40) MeV/c2, and its width is (201-67+154 -82+88) MeV. The JPC=0++ hypothesis is favored over the 2++ hypothesis at the level of 2.5σ. The analysis is based on the 980 fb-1 data sample collected by the Belle detector at the asymmetric-energy e+e- collider KEKB.

AB - We perform a full amplitude analysis of the process e+e-→J/ψDD, where D refers to either D0 or D+. A new charmoniumlike state X∗(3860) that decays to DD is observed with a significance of 6.5σ. Its mass is (3862-32+26 -13+40) MeV/c2, and its width is (201-67+154 -82+88) MeV. The JPC=0++ hypothesis is favored over the 2++ hypothesis at the level of 2.5σ. The analysis is based on the 980 fb-1 data sample collected by the Belle detector at the asymmetric-energy e+e- collider KEKB.

UR - https://www.scopus.com/pages/publications/85022340500

U2 - 10.1103/PhysRevD.95.112003

DO - 10.1103/PhysRevD.95.112003

M3 - Article

AN - SCOPUS:85022340500

SN - 2470-0010

VL - 95

JO - Physical Review D

JF - Physical Review D

IS - 11

M1 - 112003

ER -

Observation of an alternative χc0(2P) candidate in e+e−→J/ψDD¯

Abstract

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