Observation of in the Amplitude Analysis of
Journal Article
·
· Physical Review Letters
We perform for the first time an amplitude analysis of the decay and report the observation of the decay using of collision data taken at a center-of-mass energy of 3.773 GeV with the BESIII detector. As the only -annihilation-free decay among to pseudoscalar, is the ideal decay in extracting the contributions of the -emission amplitudes involving and to study the final-state interactions. The absolute branching fraction of is measured to be . The branching fractions of intermediate processes with and with are measured to be and , respectively. Published by the American Physical Society 2024
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- FG02-05ER41374
- OSTI ID:
- 2331334
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 13 Vol. 132; ISSN 0031-9007; ISSN PRLTAO
- Publisher:
- American Physical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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