4.7 Article

Exotic mesons with hidden bottom near thresholds

期刊

PHYSICAL REVIEW D
卷 86, 期 1, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.86.014004

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资金

  1. ministry of Education, Culture, Sports, Science and Technology of Japan [22740174]
  2. [E01: 21105006]
  3. Grants-in-Aid for Scientific Research [22740174, 21105006] Funding Source: KAKEN

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We study heavy hadron spectroscopy near open bottom thresholds. We employ B and B* mesons as effective degrees of freedom near the thresholds, and consider meson exchange potentials between them. All possible composite states which can be constructed from the B and B* mesons are studied up to the total angular momentum J <= 2. We consider, as exotic states, isosinglet states with exotic J(PC) quantum numbers and isotriplet states. We solve numerically the Schrodinger equation with channel couplings for each state. The masses of twin resonances Z(b)(10610) and Z(b)(10650) recently found by Belle are reproduced. We predict several possible bound and/or resonant states in other channels for future experiments.

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