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Phys. Rev. Lett. 58, 307 - 310 (1987)

Study of π+π- transitions from the Υ(3S)

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T. Bowcock et al.
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Received 29 September 1986

We have investigated the transitions Υ(3S)→π+π-Υ(1S) and Υ(3S)→π+π-Υ(2S) and the cascade process Υ(3S)→Υ(2S)+X, Υ(2S)→π+π-Υ(1S), both in the exclusive decay mode where the daughter Υ state decays into two leptons, and in the inclusive decay mode where the daughter Υ state decays hadronically. Results are presented on branching fractions and the properties of the π+π- system. Possible evidence for the transition Υ(3S)→π+π-Υ(11P1) is presented.


©1987 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.58.307
DOI: 10.1103/PhysRevLett.58.307
PACS: 13.25.+m, 13.20.Gd

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