Interpreting the X (5568)

T.J. Burns (Department of Physics, Swansea University, Singleton Park, Swansea, SA2 8PP, UK) ; E.S. Swanson (Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA, 15260, USA)

A variety of options for interpreting the DØ state, X(5568) , are examined. We find that threshold, cusp, molecular, and tetraquark models are all unfavoured. Several experimental tests for unravelling the nature of the signal are suggested.

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Published on:
22 July 2016
Publisher:
Elsevier
Published in:
Physics Letters B (2016)

DOI:
https://doi.org/10.1016/j.physletb.2016.07.049
Copyrights:
The Author(s)
Licence:
CC-BY-3.0

Fulltext files: