Wednesday, April 11, 2012

1204.1984 (Eef van Beveren et al.)

Comment on "Observation of a New chi_b State in Radiative Transitions to
Upsilon_1S and Upsilon_2S at ATLAS"
   [PDF]

Eef van Beveren, George Rupp
We comment on the recent observation of chi_b states by the ATLAS Collaboration and contest their peremptory interpretation of the highest of the three observed structures as the chi_b(3P) system. Moreover, we do not agree that from their data the mass barycenter of the chi_b(3P) system can be determined.
View original: http://arxiv.org/abs/1204.1984

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