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Published byKornél Molnár Modified 6年之前
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柯红卫 兰州大学 Hong-Wei Ke and Xue-Qian Li, arXiv: and arXiv:
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Outline 实验的现状 理论的现状 分子态与tetraquark的混合 分子态衰变的计算 混合结果及预言
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D0 Collaboration 2016 arXiv:1602.07588
实验的现状 正面 D0 Collaboration arXiv: Phys.Rev.Lett. 117, (2016) arXiv: 5568 Bs π J/ψ φ 5568 Bs π Ds μ
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LHCb Collaboration, arXiv:1608.00435 PRL118, 109904 (2017)
负面 LHCb Collaboration, arXiv: PRL118, (2017) CMS Collaboration, arXiv: CDF Collaboration, arXiv: ATLAS Collaboration, arXiv:
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理论的现状 Tetraquark 正面 S. S. Agaev, K. Azizi and H. Sundu, PRD93, (2016) [arXiv: ]; PRD93, (2016) [arXiv: ]; Phys. Rev. D 93, (2016)[arXiv: ]; arXiv: ; arXiv: Z. G. Wang, Commun. Theor. Phys. 66, 335 (2016) [arXiv: ]; Eur. Phys. J. C76 (2016) 279[arXiv: ] W. Chen, H. X. Chen, X. Liu, T. G. Steele and S. L. Zhu, PRL 117, (2016) [arXiv: ] Y. R. Liu, X. Liu and S. L. Zhu, PRD93, (2016) [arXiv: ] J. M. Dias, K. P. Khemchandani, A. Martínez Torres, M. Nielsen and C. M. Zanetti, PLB 758, 235 (2016) [arXiv: ]. F.~Stancu, J. Phys. G43, (2016) [arXiv: [hep-ph]]. J. R. Zhang, J. L. Zou and J. Y. WuChin. Phys. C42, (2018) [arXiv: ].
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Tetraquark 负面 W. Wang and R. Zhu, Chin. Phys
Tetraquark 负面 W. Wang and R. Zhu, Chin. Phys. C40, (2016) [arXiv: [hep-ph]].
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分子态正面 Z. Y. Wang, J. J. Qi, C. Wang and X. H. Guo, arXiv: H. W. Ke and X. Q. Li, arXiv: S. S. Agaev, K. Azizi and H. Sundu,arXiv: 分子态负面 M. Albaladejo, J. Nieves, E. Oset, Z. F. Sun and X. Liu, PLB, 757, 515 (2016) [arXiv: ]. X. W. Kang and J. A. Oller, PRD94, (2016) [arXiv: ]. C. B. Lang, D. Mohler and S. Prelovsek, PRD94, (2016) [arXiv: ] R. Chen and X. Liu, PRD94, (2016) [arXiv: ]. J. X. Lu, X. L. Ren and L. S. Geng, EPJC77, 94 (2017) [arXiv: ].
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X(5568)的存在性 负面 T. J. Burns and E. S. Swanson, PLB760, 627(2016) [arXiv: ] X. Chen and J. Ping, EPJC76,351 (2016)[arXiv: ] F. K. Guo, U. G. Meißner and B. S. Zou, Commun. Theor. Phys. 65, 593 (2016) [arXiv: [hep-ph]] Z. Yang, Q. Wang and U. G. Meißner, PLB767, 470(2017) [arXiv: ] D. Mohler, C. B. Lang and S. Prelovsek, PoS LATTICE2016, 391 (2016)
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T. J. Burns and E. S. Swanson, Interpreting the X(5568), PLB760, 627(2016) [arXiv: ] 分析了Threshold Effects、 Cusp Effects、 The Molecular 、Tetraquark
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3. 分子态与tetraquark的混合 我们注意的理论上的分歧主要在能谱,无论假设为分子态还是Tetraquark态,衰变的宽度基本上可以和D0实验符合。混合能否同时缓和实验的矛盾和能谱的分歧? R. Albuquerque, S. Narison, A. Rabemananjara and D. Rabetiarivony, Nature of the X(5568) : a critical Laplace sum rule analysis at N2LO, Int. J. Mod. Phys. A 31, (2016)[arXiv: ].
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4、分子态衰变的计算 矩阵元
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在推广的光前模型下计算 有效的相互作用顶点
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得到 参数
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5、混合结果及预言 由两个耦合常数
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得到 5568 MeV 实验寻找
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谢谢大家!
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