2010/09/18 by Romulus Godang, Godang, Romulus
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #hep-ex #hep-ph
paper · pdf · doi:10.48550/arxiv.1009.3575
Contributed to the Proceedings of 16th International Seminar on High Energy Physics QUARKS-2010, Kolomna, Russia, 6-12 June, 2010
arxiv created 2010/09/23 · arxiv updated 2010/09/24
We search for a new light non-Standard Model CP-odd Higgs boson, A0, decaying to τ+τ-, μ+μ-, and invisible in radiative decays of the Υ(2S) and Υ(3S). We search for the light scalar particle produced in single-photon decays of the Υ(3S) resonance through the process Υ(3S) → γA0, A0 → invisible. We also search for evidence of an undetectable Υ(1S) decay recoiling against the dipion system. The data samples contain 99 × 106 Υ(2S) and 122 × 106 Υ(3S) decays collected by the \babar detector at the SLAC PEP-II B factory.