26-30 March 2012
University of Bonn
Europe/Berlin timezone

Confirmation of a new narrow mass state decaying into Upsilon(1S)gamma

28 Mar 2012, 16:18
18m
Drawing Room, Mathematical Institute (University of Bonn)

Drawing Room, Mathematical Institute

University of Bonn

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Speakers

Claus Buszello (Uppsala University (SE)) Claus Buszello (Department of Physics and Astronomy-University of Uppsala) Claus Buszello (Uppsala University)

Description

Using the 1.3 fb$^{-1}$ sample of D0 RunII data taken between 2002 and 2006, we observe a new state decaying into $\Upsilon(1S) + \gamma$, where the $\Upsilon(1S)$ is detected by its decay into an oppositely charged muon pair, and the photon is reconstructed by its conversion into an electron-positron pair. The significance of this structure is six standard deviations and its mass is consistent with that of the state recently discovered by the ATLAS Collaboration.

Primary authors

Claus Buszello (Uppsala University (SE)) Claus Buszello (Department of Physics and Astronomy-University of Uppsala) Claus Buszello (Uppsala University) Mark Williams

Presentation materials