Abstract
The spin and parity of the state are determined to be with a statistical significance larger than over other quantum numbers in a partial wave analysis of the process . We use a data sample of accumulated at and 4.26 GeV with the BESIII experiment. When parametrizing the with a Flatté-like formula, we determine its pole mass and pole width . We also measure cross sections for the process and determine an upper limit at the 90% confidence level for the process .
- Received 9 June 2017
DOI:https://doi.org/10.1103/PhysRevLett.119.072001
© 2017 American Physical Society
Physics Subject Headings (PhySH)
Synopsis
Filling in a Tetraquark’s Profile
Published 16 August 2017
An analysis of electron-positron collision data has determined the spin and parity of a particle thought to consist of four quarks.
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