Guido, E. (2010) Test of lepton universality in Υ(1S) decays at BaBar. Il nuovo cimento C, 33 (6). pp. 271-272. ISSN 1826-9885
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Abstract
The ratio Rτμ(Υ(1S)) = ΓΥ(1S)→τ+τ−/ΓΥ(1S)→μ+μ− is measured using a sample of ∼ 122 × 106Υ(3S) events recorded by the BaBar detector. In the standard model (SM) this ratio is expected to be close to 1. Any significant deviations could be introduced by the coupling to a light pseudoscalar Higgs boson. The result obtained is: Rτμ(Υ(1S)) = 1.005 ± 0.013(stat.) ± 0.022(syst.).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Decays of J/Ψ, Υ, and other quarkonia ; Other neutral Higgs bosons ; Extensions of electroweak Higgs sector |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 03 Apr 2020 14:23 |
| Last Modified: | 03 Apr 2020 14:23 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/17144 |
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