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2013 Fiscal Year Final Research Report

Research of exotic hadrons at B-factory experiment

Planned Research

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Project AreaQuest on new hadrons with variety of flavors
Project/Area Number 21105002
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

SAKAI Yoshihide  大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 教授 (90170571)

Co-Investigator(Kenkyū-buntansha) MIYABAYASHI Kenkichi  奈良女子大学, 理学部, 准教授 (40273833)
WATANABE Yasushi  神奈川大学, 工学部, 教授 (40126199)
NAKANO Eiichi  大阪市立大学, 理学(系)研究科, 准教授 (80275239)
Co-Investigator(Renkei-kenkyūsha) UEHARA Sadaharu  高エネルギー加速器研究機構, 素粒子原子核研究所, 講師 (70176626)
TRABELSI Karim  高エネルギー加速器研究機構, 素粒子原子核研究所, 准教授 (40450358)
IMAI Ken-ichi  原研, 先端基礎センター, 教授 (70025493)
Project Period (FY) 2009-07-23 – 2014-03-31
Keywordsテトラクォーク / エキゾチックハドロン / Bファクトリー / ハドロン物理 / ハドロン分光学 / ペンタクォーク
Research Abstract

In this research program, we have analyzed high statistics data accumulated by the Belle B-factory experiment with the electron-positron collider at High Energy Research organization which achieved world highest luminosity. We successfully explored, as our central subjects, searches for new exotic hadrons and systematic understanding of their properties from new view points.
During 5 years of the program, 11 new hadrons are discovered. Including some of them, the number of exotic hadrons reached about 20 in total including those discovered in past, which opened the door to understand their essential nature.
Also, cooperation with nuclear physicists has been developed and analysis of Belle data in wide hadron physics are performed, which resulted in systematic measurements of productions of baryons and observation of new decay modes of charmed baryons.

  • Research Products

    (54 results)

All 2014 2013 2012 2011 2010 2009 Other

All Journal Article (27 results) (of which Peer Reviewed: 27 results) Presentation (26 results) Remarks (1 results)

  • [Journal Article] Measurement of branching fractions for B→J/ψηK decays and search for a narrow resonance in the J/ψηfinal state2014

    • Author(s)
      T.Iwashita, K.Miyabayashi, Y.Sakai, E.Nakano, Y.Watanabe, K.Trabelsi, S.Uehara, 他173名 (The Belle collaboration)
    • Journal Title

      Progress of Theory and Experimental Physics

      Volume: (掲載確定)

    • Peer Reviewed
  • [Journal Article] Search for doubly charmed baryons and study of charmed strange baryons at Belle2014

    • Author(s)
      Y.Kato, Y. Sakai, K. Miyabayashi, E. Nakano, Y.Watanabe, K.Trabelsi, S.Uehara, 他全162名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: (掲載確定)

    • Peer Reviewed
  • [Journal Article] First Observation of the Zb0(10610) in a Dalitz Analysis of Y(5S) -> Y(nS) pi0pi02013

    • Author(s)
      P.Krokovny, Y. Sakai, K.Miyabayashi, Y.Watanabe, K.Trabelsi, S.Uehara, 他176名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 86 Pages: 052016

    • Peer Reviewed
  • [Journal Article] Measurement of e+ e- → ω π 0, K*(892) K-bar and K2*(1430) K -bar at 10.52, 10.58, and 10.876 GeV2013

    • Author(s)
      C.P.Shen, K. Miyabayashi, E. Nakano, Y. Sakai 他全156名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 86 Pages: 052019

    • Peer Reviewed
  • [Journal Article] High-statistics study of KS0 pair production in two-photon collisions2013

    • Author(s)
      S. Uehara, Y. Watanabe, K. Miyabayashi, E. Nakano, Y. Sakai 他全159名 (The Belle collaboration)
    • Journal Title

      Progress of Theory and Experimental Physics

      Volume: 2013 Pages: 123C01

    • Peer Reviewed
  • [Journal Article] Experimental constraints on the spin and parity of the Z(4430)+2013

    • Author(s)
      K.Chilikin, Y. Sakai, K.Miyabayashi, E.Nakano, Y.Watanabe, K.Trabelsi, S.Uehara, 他183名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 86 Pages: 074026

    • Peer Reviewed
  • [Journal Article] Search for bottomonium states in exclusive radiative Upsilon(2S) decays2013

    • Author(s)
      S. Sandilya, K.Trabelsi, Y. Sakai, K.Miyabayashi, E.Nakano, Y.Watanabe, S.Uehara, 他168名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. Lett

      Volume: 111 Pages: 112001

    • Peer Reviewed
  • [Journal Article] Evidence of a new narrow resonance decaying to χc1γ in B →χc1γ K2013

    • Author(s)
      V.Bhardwaj, K. Miyabayashi, E. Nakano, Y. Sakai, K.Trabelsi, S.Uehara, 他全183名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. Lett

      Volume: 111 Pages: 032001

    • Peer Reviewed
  • [Journal Article] Study of e+ e- → π+ π- J/ψ and Observation of a Charged Charmonium-like State at Belle2013

    • Author(s)
      Z.Q.Liu, Y. Sakai, K.Miyabayashi, E.Nakano, Y.Watanabe, K.Trabelsi, S.Uehara, 他180名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. Lett

      Volume: 110 Pages: 252002

    • Peer Reviewed
  • [Journal Article] Search for an H-dibaryon with mass near 2mΛ in Y(1S) and Y(2S) decays2013

    • Author(s)
      B.KH.Kim, Y. Sakai, K.Miyabayashi, E.Nakano, Y.Watanabe, K.Trabelsi, S.Uehara, 他150名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. Lett

      Volume: 110 Pages: 222002

    • Peer Reviewed
  • [Journal Article] Study of the Hadronic Transitions Υ (2S) → (η,π0) Υ(1S) at Belle2013

    • Author(s)
      U.Tamponi, Y. Sakai, K.Miyabayashi, Y.Watanabe, K.Trabelsi, S.Uehara, 他123名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 87 Pages: 011104

    • Peer Reviewed
  • [Journal Article] Evidence for the η_b(2S) and observation of h_b(1P) → η_b(1S) γ and h_b(2P) → η_b(1S) γ2012

    • Author(s)
      R.Mizuk, Y. Sakai, K.Miyabayashi, E.Nakano, Y.Watanabe, K.Trabelsi, S.Uehara, 他168名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. Lett

      Volume: 109 Pages: 231002

    • Peer Reviewed
  • [Journal Article] Observation of ψ(4040) and ψ(4160) decay into η J/ψ2012

    • Author(s)
      X.L.Wang, K. Miyabayashi, E. Nakano, Y. Sakai 他全119名 (The Belle ollaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 87 Pages: 051102

    • Peer Reviewed
  • [Journal Article] Measurement of γ γ * → π 0 transition form factor at Belle2012

    • Author(s)
      S. Uehara, Y. Watanabe, K. Miyabayashi, E. Nakano, Y. Sakai 他全153名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 86 Pages: 0920071

    • Peer Reviewed
  • [Journal Article] First study of ηc, η(1760) and X(1835) production via η'π+π- final states in two-photon collisions2012

    • Author(s)
      C.C.Zhang, S.Uehara, Y. Sakai, K.Miyabayashi, Y.Watanabe, K.Trabelsi,他96名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 86 Pages: 052002

    • Peer Reviewed
  • [Journal Article] First observation of exclusive Y(1S) and Y(2S) decay into light hadrons2012

    • Author(s)
      C.P.Shen, K. Miyabayashi, E. Nakano, Y. Sakai 他 全149名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 86 Pages: 031102

    • Peer Reviewed
  • [Journal Article] First observation of the P-wave spin-singlet bottomonium states h_b(1P) and h_b(2P)2012

    • Author(s)
      I.Adachi, Y. Sakai, K.Miyabayashi, E.Nakano, Y.Watanabe, K.Trabelsi, S.Uehara, 他121名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. Lett

      Volume: 108 Pages: 0321001

    • Peer Reviewed
  • [Journal Article] Observation of two charged bottomonium-like resonances in Y(5S) decays2012

    • Author(s)
      A.Bondar, Y. Sakai, K.Miyabayashi, E.Nakano, Y.Watanabe, K.Trabelsi, S.Uehara, 他151名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. Lett

      Volume: 108 Pages: 0122001

    • Peer Reviewed
  • [Journal Article] Observation of X(3872) → J/ψ γ and search for X(3872) → ψ'γ in B decays2011

    • Author(s)
      V.Bhardwaj, K.Trabelsi, K. Miyabayashi, E. Nakano, Y. Sakai, S.Uehara, 他全125名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. Lett

      Volume: 107 Pages: 091803

    • Peer Reviewed
  • [Journal Article] Study of the K+ pi+ pi- Final State in B+ -> J/psi K+ pi+ pi- and B+ → psi-prime K+ pi+ pi-2011

    • Author(s)
      H.Guler, Y. Sakai, K.Miyabayashi, Y.Watanabe, K.Trabelsi, S.Uehara, 他108名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 83 Pages: 032005

    • Peer Reviewed
  • [Journal Article] Measurement of ηη production in two-photon collisions2010

    • Author(s)
      S. Uehara, Y. Watanabe, K. Miyabayashi, E. Nakano, Y. Sakai 他全127名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 82 Pages: 114031

    • Peer Reviewed
  • [Journal Article] Search for charmonium and charmonium-like states in Υ (1S) radiative decays2010

    • Author(s)
      C.P.Shen, K. Miyabayashi, E. Nakano, Y. Sakai 他全109名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 82 Pages: 051504

    • Peer Reviewed
  • [Journal Article] Measurement of the e+ e- → Ds(*) + Ds(*)-cross sections near threshold using initial-state radiation2010

    • Author(s)
      G.Pakhlova, K. Miyabayashi, E. Nakano, Y. Sakai, Y. Watanabe 他全153名 (The Belle collaboration)
    • Journal Title

      Phys Rev. D

      Volume: 83 Pages: 011101

    • Peer Reviewed
  • [Journal Article] Evidence for a new resonance and search for the Y(4140) in the γγ-> φ J/ψ process2010

    • Author(s)
      C.P.Shen, Y. Sakai, K.Miyabayashi, E.Nakano, Y.Watanabe, K.Trabelsi, S.Uehara, 他121名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. Lett

      Volume: 104 Pages: 112004

    • Peer Reviewed
  • [Journal Article] Observation of a charmonium-like enhancement in the γ γ --> ω J/ ψ process2010

    • Author(s)
      S.Uehara, Y. Sakai, K.Miyabayashi, E.Nakano, Y.Watanabe, K.Trabelsi, 他109名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. Lett

      Volume: 104 Pages: 092001

    • Peer Reviewed
  • [Journal Article] Study of the B -> X(3872)(-> D*0bar D0)K decay2010

    • Author(s)
      T.Aushev, Y. Sakai, K.Miyabayashi, E.Nakano, Y.Watanabe, K.Trabelsi, S.Uehara, 他127名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 81 Pages: 031103

    • Peer Reviewed
  • [Journal Article] Observation of an enhancement in e+e- toΥ(1S)pi+pi-,Υ(2S)pi+pi-, and Υ (3S)pi+pi- production around s^<1/2> = 10.89 GeV at Belle2009

    • Author(s)
      K.-F.Chen, , Y. Sakai, K.Miyabayashi, E.Nakano, Y.Watanabe, K.Trabelsi, S.Uehara, 他119名 (The Belle collaboration)
    • Journal Title

      Phys. Rev. D

      Volume: 82 Pages: 091106

    • Peer Reviewed
  • [Presentation] Inclusive Hadron production in e+e- collision at B-Factories2014

    • Author(s)
      新山雅之
    • Organizer
      Moriond QCD
    • Place of Presentation
      La Thuile, Italy
    • Year and Date
      20140322-27
  • [Presentation] Studies of quarkonium and quarkonium-like exotic particles from Belle2013

    • Author(s)
      V.Bhardwaj
    • Organizer
      19th International Symposium on Particles, Strings and Cosmology (PASCOS 2013)
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      20131120-26
  • [Presentation] Hadron Physics at Belle II / SuperKEKB2013

    • Author(s)
      宮林謙吉
    • Organizer
      XV International Conference on Hadron Spectroscopy (Hadron 2013)
    • Place of Presentation
      奈良, Japan
    • Year and Date
      20131104-08
  • [Presentation] Light hadron spectroscopy at Belle2013

    • Author(s)
      住浜水季
    • Organizer
      XV International Conference on Hadron Spectroscopy (Hadron 2013)
    • Place of Presentation
      奈良, Japan
    • Year and Date
      20131104-08
  • [Presentation] Study of the charmed strange baryons at Belle2013

    • Author(s)
      加藤悠司
    • Organizer
      XV International Conference on Hadron Spectroscopy (Hadron 2013)
    • Place of Presentation
      奈良, Japan
    • Year and Date
      20131104-08
  • [Presentation] Study of B -> chi_c1 Kpipi2013

    • Author(s)
      E.Panzenboeck
    • Organizer
      XV International Conference on Hadron Spectroscopy (Hadron 2013)
    • Place of Presentation
      奈良, Japan
    • Year and Date
      20131104-08
  • [Presentation] Gamma-gamma physics at Belle2013

    • Author(s)
      上原 貞治
    • Organizer
      International Workshop on e+ecollisions from Phi to Psi (PHIPSI13)
    • Place of Presentation
      Rome, Italy
    • Year and Date
      20130909-12
  • [Presentation] New particles at Belle2013

    • Author(s)
      岩下友子
    • Organizer
      EPS-HEP 2013
    • Place of Presentation
      Stockholm, Sweden
    • Year and Date
      20130718-24
  • [Presentation] Conventional cc-bar and ccq at Belle2013

    • Author(s)
      V.Bhardwaj
    • Organizer
      9th International Workshop on Heavy Quarkonium 2013 (QWG 2013)
    • Place of Presentation
      IHEP, Beijing, China
    • Year and Date
      20130422-26
  • [Presentation] Exotic charmonia at Belle2013

    • Author(s)
      ChengPing Shen
    • Organizer
      9th International Workshop on Heavy Quarkonium 2013 (QWG 2013)
    • Place of Presentation
      IHEP, Beijing, China
    • Year and Date
      20130422-26
  • [Presentation] Charmed hadrons at Belle2013

    • Author(s)
      酒井 和幸
    • Organizer
      Workshop on Future Prospects of Hadron Physics at J-PARC and Large Scale Computational Physics in 2013
    • Place of Presentation
      Tokai, Japan
    • Year and Date
      20130211-13
  • [Presentation] Observation of new resonant structures in γγ → ωφ, φφ and ωω2012

    • Author(s)
      ChengPing Shen
    • Organizer
      International Workshop on using Heavy Flavors to Probe New Hadron Spectroscopies/Dynamics
    • Place of Presentation
      Busan, Korea
    • Year and Date
      20121119-21
  • [Presentation] Exotic Onia-like Spectroscopy2012

    • Author(s)
      飯嶋 徹
    • Organizer
      Physics at LHC (PLHC2012)
    • Place of Presentation
      Vancouver, Canada
    • Year and Date
      20120604-09
  • [Presentation] Measurement of γγ* → π0 Transition Form Factor at Belle2012

    • Author(s)
      上原 貞治
    • Organizer
      12th International Workshop on Meson Production, Properties and Interaction (MESON 2012)
    • Place of Presentation
      Krakow, Ploand
    • Year and Date
      20120531-0604
  • [Presentation] Studies of radiative X(3872) decays at Belle2012

    • Author(s)
      V.Bhardwaj
    • Organizer
      CHARM 2012
    • Place of Presentation
      Honolulu, Hawaii, USA
    • Year and Date
      20120514-17
  • [Presentation] Charmonium and -like states from Belle2012

    • Author(s)
      V.Bhardwaj
    • Organizer
      Moriond Electroweak
    • Place of Presentation
      La Thuile, Italy
    • Year and Date
      2012-03-07
  • [Presentation] Two-photon studies at Belle2011

    • Author(s)
      上原 貞治
    • Organizer
      International Workshop on e+ecollisions from phi to psi (PHIPSI11)
    • Place of Presentation
      Novosibirsk, Russia
    • Year and Date
      2011-09-20
  • [Presentation] Hadron Physics from Belle2010

    • Author(s)
      T.Iijima
    • Organizer
      International Conference on the Structure of Baryons (BARYONS'10)
    • Place of Presentation
      Osaka, Japan
    • Year and Date
      20101207-11
  • [Presentation] Recent Belle results on two-photon annihilation into pairs of hadrons2010

    • Author(s)
      S.Uehara
    • Organizer
      Workshop on Hard Meson and Photon Production
    • Place of Presentation
      Trento, Italy
    • Year and Date
      20101011-15
  • [Presentation] Meson spectroscopy2010

    • Author(s)
      S.Uehara
    • Organizer
      11th International Workshop on Meson Production, Properties and Interaction (MESON 2010)
    • Place of Presentation
      Krakow, Poland
    • Year and Date
      2010-06-11
  • [Presentation] Hadron physics and spectroscopy2010

    • Author(s)
      K.Trabelsi
    • Organizer
      50 Cracow School of Theoretical Physics
    • Place of Presentation
      Zakopane, Poland
    • Year and Date
      2010-06-10
  • [Presentation] Other charmonium and charmonium-like results at Belle2010

    • Author(s)
      K. Miyabayashi
    • Organizer
      7th International Workshop on Heavy Quarkonium (QWG7)
    • Place of Presentation
      Fermilab, U.S.A.
    • Year and Date
      2010-05-19
  • [Presentation] Belle 実験におけるエキゾチックハドロン研究2009

    • Author(s)
      宮林 謙吉
    • Organizer
      科研費特定領域と新学術領域による研究会「ストレンジネスから新ハドロンへ」
    • Place of Presentation
      大阪大学吹田キャンパス
    • Year and Date
      2009-12-12
  • [Presentation] Review of recent results on XYZ from Belle and BaBar2009

    • Author(s)
      S.Uehara
    • Organizer
      13th International Conference on Hadron Spectroscopy (HADRON 2009)
    • Place of Presentation
      Tallahassee, Florida, U.S.A.
    • Year and Date
      2009-12-03
  • [Presentation] Heavy flavored exotic hadrons at Belle2009

    • Author(s)
      宮林 謙吉
    • Organizer
      Hadron Structure and Interactions 2009
    • Place of Presentation
      東京家政大学
    • Year and Date
      2009-08-25
  • [Presentation] Two-photon Collisions at Belle2009

    • Author(s)
      渡辺 靖志
    • Organizer
      Hadron Structure and Interactions 2009
    • Place of Presentation
      東京家政大学
    • Year and Date
      2009-08-24
  • [Remarks]

    • URL

      http://www.hepl.phys.nagoya-u.ac.jp/public/new_hadron

URL: 

Published: 2015-06-25  

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