We search for the decay Υ(1S)→γA0, A0→gg or ss⎯⎯, where A0 is the pseudoscalar light Higgs boson predicted by the next-to-minimal supersymmetric Standard Model. We use a sample of (17.6±0.3)×106 Υ(1S) mesons produced in the BABAR experiment via e+e−→Υ(2S)→π+π−Υ(1S). We see no significant signal and set 90%-confidence-level upper limits on the product branching fraction ℬ(Υ(1S)→γA0)·ℬ(A0→gg or ss⎯⎯) ranging from 10−6 to 10−2 for A0 masses in the range 0.5–9.0  GeV/c2.

Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2013). Search for a light Higgs boson decaying to two gluons or s(s)over-bar in the radiative decays of Upsilon(1S). PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 88(3), 1-7 [10.1103/PhysRevD.88.031701].

Search for a light Higgs boson decaying to two gluons or s(s)over-bar in the radiative decays of Upsilon(1S)

PATRIGNANI, CLAUDIA;
2013

Abstract

We search for the decay Υ(1S)→γA0, A0→gg or ss⎯⎯, where A0 is the pseudoscalar light Higgs boson predicted by the next-to-minimal supersymmetric Standard Model. We use a sample of (17.6±0.3)×106 Υ(1S) mesons produced in the BABAR experiment via e+e−→Υ(2S)→π+π−Υ(1S). We see no significant signal and set 90%-confidence-level upper limits on the product branching fraction ℬ(Υ(1S)→γA0)·ℬ(A0→gg or ss⎯⎯) ranging from 10−6 to 10−2 for A0 masses in the range 0.5–9.0  GeV/c2.
2013
Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2013). Search for a light Higgs boson decaying to two gluons or s(s)over-bar in the radiative decays of Upsilon(1S). PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 88(3), 1-7 [10.1103/PhysRevD.88.031701].
Lees, J. P.; Poireau, V.; Tisserand, V.; Grauges, E.; Palano, A.; Eigen, G.; Stugu, B.; Brown, D. N.; Kerth, L. T.; Kolomensky, Yu. G.; Lee, M. J.; Ly...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/535515
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