Common explanation of the behavior of some e+e- annihilation processes around sqrt s =1.9 GeV
- NázevTitle
- Common explanation of the behavior of some e+e- annihilation processes around sqrt s =1.9 GeVCommon explanation of the behavior of some e+e- annihilation processes around sqrt s =1.9 GeV
- Druh výsledkuResult type
- Článek v časopiseJournal article
- AutořiAuthors
- P. Lichard
- DOIDOI
- 10.1103/PhysRevD.98.113011
- Časopis / citaceJournal / citation
- Physical Review D. 2018, 98(11), ISSN 1550-7998.
- RokYear
- 2018
- JazykLanguage
- eng
- WoSWoS
- 000454634400004
- ScopusScopus
- 2-s2.0-85059485721
- RIVRIV
- RIV/68407700:21670/18:00325960!RIV19-MSM-21670___
- ProjektProject
- Institucionální podpora na rozvoj výzkumné org.Institucionální podpora na rozvoj výzkumné org.
AbstraktAbstract
We show that the behavior of the excitation curves of some e+ e- annihilation processes close to the nucleon-antinucleon threshold can be explained either by the rho(1900) resonance itself or by its interference with other resonances. Besides the six-pion annihilation and the e+ e- -> K+ K- pi +pi- and Phi pi0 processes, we also analyze the final states eta pi+ pi-, K+ K- pi+ pi- pi0, and K+ K- pi0 pi0, the behavior of which around 1.9 GeV has not yet attracted attention. Analysis of the data on the e+ e- -> p p̄ and e+ e- -> n n̄ reactions clearly shows that the rho(1900) resides above the n n̄ threshold.
We show that the behavior of the excitation curves of some e+ e- annihilation processes close to the nucleon-antinucleon threshold can be explained either by the rho(1900) resonance itself or by its interference with other resonances. Besides the six-pion annihilation and the e+ e- -> K+ K- pi +pi- and Phi pi0 processes, we also analyze the final states eta pi+ pi-, K+ K- pi+ pi- pi0, and K+ K- pi0 pi0, the behavior of which around 1.9 GeV has not yet attracted attention. Analysis of the data on the e+ e- -> p p̄ and e+ e- -> n n̄ reactions clearly shows that the rho(1900) resides above the n n̄ threshold.