AI Article Synopsis
- A Dalitz plot analysis was conducted on decay data from collisions at specific energies, yielding meaningful results.
- An exotic resonant state was identified, showing significant presence with a significance level exceeding three standard deviations.
- The study also provided the first measurement of the branching fraction, detailing uncertainties from statistical, systematic, and external factors.
Article Abstract
A Dalitz plot analysis of decays is performed using data samples of collisions collected with the detector at centre-of-mass energies of and , corresponding to a total integrated luminosity of . A satisfactory description of the data is obtained when including a contribution representing an exotic resonant state. The significance of this exotic resonance is more than three standard deviations, while its mass and width are and , respectively. The spin-parity assignments and are both consistent with the data. In addition, the first measurement of the branching fraction is performed and gives where the first uncertainty is statistical, the second systematic, and the third is due to limited knowledge of external branching fractions.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6383874 | PMC |
| http://dx.doi.org/10.1140/epjc/s10052-018-6447-z | DOI Listing |
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