Low-energy scattering of the (D*(D)over-bar*)± system and the resonancelike structure Zc(4025)

被引：22
作者：
Chen, Ying [1 ]
Gong, Ming [1 ]
Lei, Yu-Hong [2 ]
Li, Ning [3 ]
Liang, Jian [1 ]
Liu, Chuan [4 ,5 ,6 ]
Liu, Jin-Long [2 ]
Liu, Yong-Fu [2 ]
Liu, Yu-Bin [7 ]
Liu, Zhaofeng [1 ]
Ma, Jian-Ping [8 ]
Wang, Zhan-Lin [2 ]
Zhang, Jian-Bo [9 ]
机构：
[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
[2] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
[3] Xian Technol Univ, Sch Sci, Xian 710032, Peoples R China
[4] Peking Univ, Sch Phys, Beijing 100871, Peoples R China
[5] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
[6] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China
[7] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China
[8] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
[9] Zhejiang Univ, Dept Phys, Hangzhou 311027, Zhejiang, Peoples R China
来源：
PHYSICAL REVIEW D | 2015年 / 92卷 / 05期
基金：
美国国家科学基金会;
关键词：
MOLECULE; STATES;
D O I：
10.1103/PhysRevD.92.054507
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, low-energy scattering of the (D*(D) over bar*)(+/-) meson system is studied within Luscher's finite-size formalism using N-f = 2 twisted-mass gauge field configurations. With three different pion mass values, the s-wave threshold scattering parameters-namely the scattering length a(0) and the effective range r(0)-are extracted in the J(PC) = 1(+-) channel. Our results indicate that, in this particular channel, the interaction between the two vector charmed mesons is weakly repulsive in nature and hence it does not support the possibility of a shallow bound state for the two mesons, at least for the pion mass values being studied. However, these results might suffer from undetermined systematic errors due to low-lying states ignored in this exploratory study. Still, it provides some useful information on the nature of the newly discovered resonance-like structure Z(c)(4025) observed in various experiments.
引用
收藏
页数：13
相关论文
共 19 条
  • [1] 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)
  • [2] 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)
  • [3] Partial twisting for scalar mesons
    Agadjanov, Dimitri
    Meissner, Ulf-G
    Rusetsky, Akaki
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2014, (01):
  • [4] Aharonov-Bohm effect and nucleon-nucleon phase shifts on the lattice
    Bedaque, PE
    [J]. PHYSICS LETTERS B, 2004, 593 : 82 - 88
  • [5] Average up/down, strange, and charm quark masses with Nf=2 twisted-mass lattice QCD
    Blossier, B.
    Dimopoulos, P.
    Frezzotti, R.
    Lubicz, V.
    Petschlies, M.
    Sanfilippo, F.
    Simula, S.
    Tarantino, C.
    [J]. PHYSICAL REVIEW D, 2010, 82 (11):
  • [6] Chen W, 2014, EUR PHYS J C, V74, DOI 10.1140/epjc/s10052-014-2773-y
  • [7] Low-energy scattering of the (D(D)over-bar*)± system and the resonance-like structure Zc(3900)
    Chen, Ying
    Gong, Ming
    Lei, Yu-Hong
    Li, Ning
    Liang, Jian
    Liu, Chuan
    Liu, Hang
    Liu, Jin-Long
    Liu, Liuming
    Liu, Yong-Fu
    Liu, Yu-Bin
    Liu, Zhaofeng
    Ma, Jian-Ping
    Wang, Zhan-Lin
    Yang, Yi-Bo
    Zhang, Jian-Bo
    [J]. PHYSICAL REVIEW D, 2014, 89 (09):
  • [8] Cui CY, 2013, EUR PHYS J C, V73, P1, DOI 10.1140/epjc/s10052-013-2661-x
  • [9] Chirally improving Wilson fermions - 2. Four-quark operators
    Frezzotti, R
    Rossi, G
    [J]. JOURNAL OF HIGH ENERGY PHYSICS, 2004, (10):
  • [10] Zc(4025) as the hadronic molecule with hidden charm
    He, Jun
    Liu, Xiang
    Sun, Zhi-Feng
    Zhu, Shi-Lin
    [J]. EUROPEAN PHYSICAL JOURNAL C, 2013, 73 (11): : 1 - 6
12