Search for a light Higgs resonance in radiative decays of the ϒ(1S) with a charm tag
Name
PhysRevD.91.071102.pdf
Size
471.15 KB
Format
Adobe PDF
Checksum (MD5)
d80fe9b1a86e88f72d74908eb6c001c1
Author(s)
Lees, J. P.
Poireau, V.
Tisserand, V.
Grauges, E.
Palano, A.
Eigen, G.
Stugu, B.
Brown, D. N.
Kerth, L. T.
Kolomensky, Yu. G.
Date Issued
April 2015
Journal
Physical Review D
Publisher
American Physical Society
Citation
Lees, J. P., et al. "Search for a light Higgs resonance in radiative decays of the ϒ(1S) with a charm tag." Phys. Rev. D 91, 071102 (April 2015). © 2015 American Physical Society
Version
Final published version
Abstract
A search is presented for the decay ϒ(1S)→γA[superscript 0], A[superscript 0] → c[bar over c], where A[superscript 0] 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[superscript +]π[superscript -]ϒ(1S). The A[superscript 0] → c[bar over c] decay is identified through the reconstruction of hadronic D[superscript 0], D[superscript +], and D[superscript *](2010)[superscript +] meson decays. No significant signal is observed. The measured 90% confidence-level upper limits on the product branching fraction B(ϒ(1S) → γA[superscript 0]) × B(A[superscript 0] → c[bar over c]) range from 7.4 × 10[superscript -5] to 2.4 × 10[superscript -3] for A[superscript 0] masses from 4.00 to 8.95 GeV/c[superscript 2] and 9.10 to 9.25 GeV/c[superscript 2], where the region between 8.95 and 9.10 GeV/c[superscript 2] is excluded because of background from ϒ(2S) → γχ[subscript bJ](1P), χ[subscript bJ](1P) → γϒ(1S) decays.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1103/PhysRevD.91.071102
