• Rapid Communication

Search for a light Higgs resonance in radiative decays of the ϒ(1S) with a charm tag

J. P. Lees et al. (BaBar Collaboration)
Phys. Rev. D 91, 071102(R) – Published 10 April 2015

Abstract

A search is presented for the decay ϒ(1S)γA0, A0cc¯, where A0 is a candidate for the CP-odd Higgs boson of the next-to-minimal supersymmetric standard model. The search is based on data collected with the BABAR detector at the ϒ(2S) resonance. A sample of ϒ(1S) mesons is selected via the decay ϒ(2S)π+πϒ(1S). The A0cc¯ decay is identified through the reconstruction of hadronic D0, D+, and D*(2010)+ meson decays. No significant signal is observed. The measured 90% confidence-level upper limits on the product branching fraction B(ϒ(1S)γA0)×B(A0cc¯) range from 7.4×105 to 2.4×103 for A0 masses from 4.00 to 8.95GeV/c2 and 9.10 to 9.25GeV/c2, where the region between 8.95 and 9.10GeV/c2 is excluded because of background from ϒ(2S)γχbJ(1P), χbJ(1P)γϒ(1S) decays.

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  • Received 23 February 2015

DOI:https://doi.org/10.1103/PhysRevD.91.071102

© 2015 American Physical Society

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Vol. 91, Iss. 7 — 1 April 2015

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