Abstract
The data sample of decays acquired with the LHCb detector from 7 and 8 TeV collisions, corresponding to an integrated luminosity of , is inspected for the presence of or contributions with minimal assumptions about contributions. It is demonstrated at more than nine standard deviations that decays cannot be described with contributions alone, and that contributions play a dominant role in this incompatibility. These model-independent results support the previously obtained model-dependent evidence for charmonium-pentaquark states in the same data sample.
- Received 19 April 2016
DOI:https://doi.org/10.1103/PhysRevLett.117.082002
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© 2016 CERN, for the LHCb Collaboration
Physics Subject Headings (PhySH)
Synopsis
Pentaquark Discovery Confirmed
Published 18 August 2016
New results from the LHCb experiment confirm the 2015 discovery that quarks can combine into groups of five.
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