Hot Topics in BaBar

TL;DR

This paper reports recent BaBar experiment results on light Higgs-like particles and lepton flavor violation in specific meson and tau decays, exploring potential signs of physics beyond the Standard Model.

Contribution

It provides new experimental searches and constraints on light Higgs-like particles and lepton flavor violation in meson and tau decays.

Findings

No significant signals observed in the searched channels.

New upper limits set on branching fractions for these rare decays.

Results constrain models predicting light Higgs and lepton flavor violation.

Abstract

We present recent results concerning the searches for light Higgs-like particles in the decay $\Upsilon (3S) \to \gamma A^{0}, A^{0}\to \mu^{+}\mu^{-}$ as well as for the lepton flavour violation in the decays $\Upsilon (3S) \to e^{\pm}\tau^{\mp},\mu^{\pm}\tau^{\mp}$ and $\tau \to 3l (l=e,\mu)$ with the BaBar experiment.