Observation of New Structure in the $e^{+} e^{-}$ Cross Section above the $ϒ (4S)$

4 February 1985

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 54 (5), 381-384
https://doi.org/10.1103/physrevlett.54.381

Abstract

Measurements of the

e^{+} e^{-}

cross section above

B \bar{B}

threshold are reported. Structures are observed which could be the

ϒ (5 S)

and

ϒ (6 S)

resonances. The masses and widths are given and compared with various potential-model predictions. Average charged multiplicities and inclusive lepton yields are also presented.

Keywords

This publication has 23 references indexed in Scilit:

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Observation of New Structure in thee+e−Cross Section above theϒ(4S)

Abstract

Keywords

Observation of New Structure in the $e^{+} e^{-}$ Cross Section above the $ϒ (4S)$