Spectroscopy and decays of the fully-heavy tetraquarks

被引：120
作者：
Anwar, Muhammad Naeem [1 ,2 ,3 ,4 ]
Ferretti, Jacopo [1 ]
Guo, Feng-Kun [1 ,5 ]
Santopinto, Elena [6 ]
Zou, Bing-Song [1 ,5 ]
机构：
[1] Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Univ Bonn, Helmholtz Inst Strahlen & Kernphys, D-53115 Bonn, Germany
[4] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
[5] Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China
[6] INFN, Sez Genova, Via Dodecaneso 33, I-16146 Genoa, Italy
来源：
EUROPEAN PHYSICAL JOURNAL C | 2018年 / 78卷 / 08期
基金：
中国国家自然科学基金;
关键词：
MASS INEQUALITIES; BOUND-STATES; MULTIQUARK HADRONS; MODEL; QCD; CHARMONIUM; SPECTRUM; MESONS; NRQCD;
D O I：
10.1140/epjc/s10052-018-6073-9
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We discuss the possible existence of the fullyheavy tetraquarks. We calculate the ground-state energy of the bb (b) over bar(b) over bar bound state, where b stands for the bottom quark, in a nonrelativistic effective field theory framework with onegluon-exchange (OGE) color Coulomb interaction, and in a relativized diquark model characterized by OGE plus a confining potential. Our analysis advocates the existence of uni-flavor heavy four-quark bound states. The ground state bbbb tetraquark mass is predicted to be (18.72 +/- 0.02) GeV. Mass inequality relations among the lowest QQ (Q) over bar(Q) over bar states, where Q is an element of (c, b), and the corresponding heavy quarkonia are presented, which give the upper limit on the mass of ground state QQ (Q) over bar(Q) over bar. The possible decays of the lowest bb (b) over barb are highlighted, which might provide useful references in the search for them in ongoing LHC experiments, and its width is estimated to be a few tens of MeV.
引用
收藏
页数：9
相关论文
共 101 条
  • [1] Observation of the Doubly Charmed Baryon Ξcc++
    Aaij, R.
    Adeva, B.
    Adinolfi, M.
    Ajaltouni, Z.
    Akar, S.
    Albrecht, J.
    Alessio, F.
    Alexander, M.
    Albero, A. Alfonso
    Ali, S.
    Alkhazov, G.
    Cartelle, P. Alvarez
    Amato, S.
    Amerio, S.
    Amhis, Y.
    An, L.
    Anderlini, L.
    Andreassi, G.
    Andreotti, M.
    Andrews, J. E.
    Appleby, R. B.
    Archilli, F.
    d'Argent, P.
    Romeu, J. Arnau
    Artamonov, A.
    Artuso, M.
    Aslanides, E.
    Auriemma, G.
    Baalouch, M.
    Babuschkin, I.
    Bachmann, S.
    Back, J. J.
    Badalov, A.
    Baesso, C.
    Baker, S.
    Balagura, V.
    Baldini, W.
    Baranov, A.
    Barlow, R. J.
    Barschel, C.
    Barsuk, S.
    Barter, W.
    Baryshnikov, F.
    Batozskaya, V.
    Battista, V.
    Bay, A.
    Beaucourt, L.
    Beddow, J.
    Bedeschi, F.
    Bediaga, I.
    [J]. PHYSICAL REVIEW LETTERS, 2017, 119 (11)
  • [2] Aaij R., ARXIV180609707
  • [3] Observation of a Charged Charmoniumlike Structure in e+e- → (D* (D)over-bar*)±π∓ at √s=4.26 GeV
    Ablikim, M.
    Achasov, M. N.
    Albayrak, O.
    Ambrose, D. J.
    An, F. F.
    An, Q.
    Bai, J. Z.
    Ferroli, R. Baldini
    Ban, Y.
    Becker, J.
    Bennett, J. V.
    Bertani, M.
    Bian, J. M.
    Boger, E.
    Bondarenko, O.
    Boyko, I.
    Braun, S.
    Briere, R. A.
    Bytev, V.
    Cai, H.
    Cai, X.
    Cakir, O.
    Calcaterra, A.
    Cao, G. F.
    Cetin, S. A.
    Chang, J. F.
    Chelkov, G.
    Chen, G.
    Chen, H. S.
    Chen, J. C.
    Chen, M. L.
    Chen, S. J.
    Chen, X. R.
    Chen, Y. B.
    Cheng, H. P.
    Chu, Y. P.
    Cronin-Hennessy, D.
    Dai, H. L.
    Dai, J. P.
    Dedovich, D.
    Deng, Z. Y.
    Denig, A.
    Denysenko, I.
    Destefanis, M.
    Ding, W. M.
    Ding, Y.
    Dong, L. Y.
    Dong, M. Y.
    Du, S. X.
    Fang, J.
    [J]. PHYSICAL REVIEW LETTERS, 2014, 112 (13)
  • [4] Observation of a Charged Charmoniumlike Structure Zc (4020) and Search for the Zc (3900) in e+e- → π+ π-hc
    Ablikim, M.
    Achasov, M. N.
    Albayrak, O.
    Ambrose, D. J.
    An, F. F.
    An, Q.
    Bai, J. Z.
    Ferroli, R. Baldini
    Ban, Y.
    Becker, J.
    Bennett, J. V.
    Bertani, M.
    Bian, J. M.
    Boger, E.
    Bondarenko, O.
    Boyko, I.
    Braun, S.
    Briere, R. A.
    Bytev, V.
    Cai, H.
    Cai, X.
    Cakir, O.
    Calcaterra, A.
    Cao, G. F.
    Cetin, S. A.
    Chang, J. F.
    Chelkov, G.
    Chen, G.
    Chen, H. S.
    Chen, J. C.
    Chen, M. L.
    Chen, S. J.
    Chen, X. R.
    Chen, Y. B.
    Cheng, H. P.
    Chu, X. K.
    Chu, Y. P.
    Cronin-Hennessy, D.
    Dai, H. L.
    Dai, J. P.
    Dedovich, D.
    Deng, Z. Y.
    Denig, A.
    Denysenko, I.
    Destefanis, M.
    Ding, W. M.
    Ding, Y.
    Dong, L. Y.
    Dong, M. Y.
    Du, S. X.
    [J]. PHYSICAL REVIEW LETTERS, 2013, 111 (24)
  • [5] Observation of a Charged Charmoniumlike Structure in e+e- → π+π- J/ψ at √s=4.26 GeV
    Ablikim, M.
    Achasov, M. N.
    Ai, X. C.
    Albayrak, O.
    Ambrose, D. J.
    An, F. F.
    An, Q.
    Bai, J. Z.
    Ferroli, R. Baldini
    Ban, Y.
    Becker, J.
    Bennett, J. V.
    Bertani, M.
    Bian, J. M.
    Boger, E.
    Bondarenko, O.
    Boyko, I.
    Briere, R. A.
    Bytev, V.
    Cai, H.
    Cai, X.
    Cakir, O.
    Calcaterra, A.
    Cao, G. F.
    Cetin, S. A.
    Chang, J. F.
    Chelkov, G.
    Chen, G.
    Chen, H. S.
    Chen, J. C.
    Chen, M. L.
    Chen, S. J.
    Chen, X.
    Chen, Y. B.
    Cheng, H. P.
    Chu, Y. P.
    Cronin-Hennessy, D.
    Dai, H. L.
    Dai, J. P.
    Dedovich, D.
    Deng, Z. Y.
    Denig, A.
    Denysenko, I.
    Destefanis, M.
    Ding, W. M.
    Ding, Y.
    Dong, L. Y.
    Dong, M. Y.
    Du, S. X.
    Fang, J.
    [J]. PHYSICAL REVIEW LETTERS, 2013, 110 (25)
  • [6] DO NARROW HEAVY MULTIQUARK STATES EXIST
    ADER, JP
    RICHARD, JM
    TAXIL, P
    [J]. PHYSICAL REVIEW D, 1982, 25 (09) : 2370 - 2382
  • [7] Exotics: Heavy pentaquarks and tetraquarks
    Ali, Ahmed
    Lange, Jens Soeren
    Stone, Sheldon
    [J]. PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, 2017, 97 : 123 - 198
  • [8] [Anonymous], ARXIV161200012
  • [9] Anwar M. N., ARXIV180506276
  • [10] Anwar M. N., 2012, THESIS
12345678910