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)

RAS - P.N. Lebedev Physics Institute
Moscow Engineering Physics Institute
The Graduate University for Advanced Studies
High Energy Accelerator Research Organization, Tsukuba
The University of Tokyo
King Abdulaziz University
University of Tabuk
Pacific Northwest National Laboratory
RAS - Budker Institute of Nuclear Physics
Novosibirsk State University
Tata Institute of Fundamental Research
King Abdulaziz City for Science and Technology
The University of Sydney
University of Melbourne
Indian Institute of Science Education and Research Mohali
Indian Institute of Technology Guwahati
Jožef Stefan Institute
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
Indian Institute of Technology Bhubaneswar
German Electron Synchrotron
Virginia Polytechnic Institute and State University
Karlsruhe Institute of Technology
Niigata University
National Taiwan University

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

99 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{5abe9d8159974aee9a4eafb77ac0d5fe,

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

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 - Kang, K. H.

AU - Kim, H. J.

AU - Kim, M. J.

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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