4.7 Article

B meson spectroscopy

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PHYSICAL REVIEW D
卷 77, 期 1, 页码 -

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AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.77.017501

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We study the B meson spectroscopy allowing the mixture of conventional P wave quark-antiquark states and four-quark components. A similar picture was used to describe the new D-J and D-sJ open-charm mesons. The four-quark components shift the masses of some positive parity B-sJ states below their corresponding isospin preserving two-meson threshold and therefore they are expected to be narrow. Electromagnetic decay widths are analyzed.

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