Observation of the Upsilon(2 3D1) and indication of the Upsilon(1 3D1)

Details Observation of the Upsilon(2 3D1) and indication of the Upsilon(1 3D1) Observation of the Upsilon(2 3D1) and indication of the Upsilon(1 3D1)

2010-09-21

arxiv.org/abs/1009.4097v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 6 figures; v2: fig 1a replaced, some text changed accordingly; v3: 5 pages, 7 figures; substantial changes; in partic

Scientific paper

We present evidence, from published BABAR data, for the existence of further
excitations in the b-bbar spectrum, namely the long-awaited Upsilon(1D) and
Upsilon(2D) with central masses of 10098 pm 5 MeV and 10492 pm 5 MeV,
respectively. The significance of the Upsilon(1 3D1) and Upsilon(2 3D1) signals
is found to be 3.0 and 10.7 standard deviations, respectively.

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