First Measurement of the Decay Asymmetry in the Pure -Boson-Exchange Decay
Journal Article
·
· Physical Review Letters
Based on of annihilation data collected at the center-of-mass energies between 4.60 and 4.70 GeV with the BESIII detector at the BEPCII collider, the pure -boson-exchange decay is studied with a full angular analysis. The corresponding decay asymmetry is measured for the first time to be . This result reflects the noninterference effect between the - and -wave amplitudes. The phase shift between - and -wave amplitudes has two solutions, which are or . Published by the American Physical Society 2024
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- FG02-05ER41374
- OSTI ID:
- 2281633
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Vol. 132 Journal Issue: 3; ISSN 0031-9007
- Publisher:
- American Physical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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