Dalitz plot analyses of J/ψ → π<SUP>+</SUP> π<SUP>-</SUP> π<SUP>0</SUP>, J/ψ → K<SUP>+</SUP> K<SUP>-</SUP> π<SUP>0</SUP>, and J/ψ → K<SUP>0</SUP><sub>s</sub>K<SUP>±</SUP>π<SUP>∓</SUP> produced via e <SUP>+</SUP> e <SUP>-</SUP> annihilation with initial-state radiation



Lees, JP, Poireau, V, Tisserand, V, Grauges, E, Palano, A, Eigen, G, Brown, DN, Kolomensky, Yu G, Fritsch, M, Koch, H
et al (show 226 more authors) (2017) Dalitz plot analyses of J/ψ → π<SUP>+</SUP> π<SUP>-</SUP> π<SUP>0</SUP>, J/ψ → K<SUP>+</SUP> K<SUP>-</SUP> π<SUP>0</SUP>, and J/ψ → K<SUP>0</SUP><sub>s</sub>K<SUP>±</SUP>π<SUP>∓</SUP> produced via e <SUP>+</SUP> e <SUP>-</SUP> annihilation with initial-state radiation. PHYSICAL REVIEW D, 95 (7). 072007-.

Access the full-text of this item by clicking on the Open Access link.

Abstract

We study the processes e+e-→γISRJ/ψ, where J/ψ→π+π-π0, J/ψ→K+K-π0, and J/ψ→KS0K±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-π0)B(J/ψ→π+π-π0) and R2=B(J/ψ→KS0K±π∓)B(J/ψ→π+π-π0). 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-π0 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(ρ(1450))=B(ρ(1450)→K+K-)B(ρ(1450)→π+π-)=0.307±0.084(stat)±0.082(sys).

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 13 Sep 2017 14:07
Last Modified: 14 Mar 2024 21:49
DOI: 10.1103/PhysRevD.95.072007
Open Access URL: http://arxiv.org/pdf/1702.01551.pdf
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3009455