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Title: Dalitz plot analyses of J / ψ π + π - π 0 , J / ψ K + K - π 0 , and J / ψ K s 0 K ± π produced via e + e - annihilation with initial-state radiation

Journal Article · · Physical Review D
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Here, we study the processes e+e- → γ ISR J/ψ , where J/ψ → π +π-π0, J/ψ → K +K-π0 , and J / ψ → K$$0\atop{S}$$ K ± π ∓ using a data sample of 519 fb-1 recorded with the BABAR detector operating at the SLAC PEP-II asymmetric-energy e+e- collider at center-of-mass energies at and near the Υ (nS) (n = 2 , 3 , 4) resonances. We measure the ratio of branching fractions R1 = $$B(J/ψ →K^+K^- π^0)\atop{B(J/ψ →π^+π^- π^0)}$$ and R2= $$B(J/ψ →K^0_SK^±π^∓)\atop{B(J/ψ →π^+π^- π^0)}$$. We perform Dalitz plot analyses of the three J/ψ decay modes and measure fractions for resonances contributing to the decays. We also analyze the J/ψ → $π^+π^- π^0$ decay using the Veneziano model. We observe structures compatible with the presence of ρ (1450) in all three J/ψ decay modes and measure the relative branching fraction: R (p(1450)) = $$Bp(1450)→K^+K^-)\atop{B(p(1450)→π^+π^-)}$$ +0.307 ± 0.084 (stat) ± 0.082 (sys).

Research Organization:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
BaBar Collaboration
Grant/Contract Number:
AC02-05CH11231; AC05-06OR23177
OSTI ID:
1430678
Alternate ID(s):
OSTI ID: 1351045
Journal Information:
Physical Review D, Vol. 95, Issue 7; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 8 works
Citation information provided by
Web of Science

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