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Possible psi(5S), psi(4D), psi(6S) and psi(5D) signals in Lambda(c)-antiLambda(c)

Authors: E. van Beveren, X. Liu, R. Coimbra, and G. Rupp

Ref.: Europhys. Lett. 85, 61002-p1-61002-p6 (2009)

Abstract: It is shown that the Lambda(c+)-Lambda(c-) signal recently reported by the Belle Collaboration (ARXIV:0807.4458) contains clear signs of the psi(5S) and the psi(4D) c-cbar vector states, and also some indication for the masses and widths of the psi(6S) and psi(5D). Moreover, it is argued that the threshold behaviour of the Lambda(c+)-antiLambda(c-) cross sections suggests the presence of the hitherto undetected psi(3D) state not far below the Lambda(c+)-Lambda(c-) threshold.

DOI: 10.1209/0295-5075/85/61002

URL: arxiv.org