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

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

2012-04-09

arxiv.org/abs/1204.1984v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

1 page, 2 figures

Scientific paper

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.

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