Search for a Low-Mass Scalar Higgs Boson Decaying to a Tau Pair in Single-Photon Decays of Upsilon(1S)

Abstract

We search for a low-mass scalar CP-odd Higgs boson, A0, produced in the radiative decay of the Upsilon resonance and decaying into a tau+tau- pair: Upsilon(1S)->gamma A0. The production of Upsilon(1S) mesons is tagged by Upsilon(2S)->pi+pi-Upsilon(1S) transitions, using a sample of (98.3+/-0.9) million Upsilon(2S) mesons collected by the BaBar detector. We find no evidence for a Higgs boson in the mass range 3.5 GeV<= m(A0)<=9.2 GeV, and combine these results with our previous search for the tau decays of the light Higgs in radiative Upsilon(3S) decays, setting limits on the coupling of A0 to the b/bbar quarks in the range 0.09-1.9. Our measurements improve the constraints on the parameters of the Next-to-Minimal-Supersymmetric Standard Model and similar theories with low-mass scalar degrees of freedom.

8 pages, 4 figures; submitted to PRD-RC

References in corpus (7)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Probing NMSSM Scenarios with Minimal Fine-Tuning by Searching for Decays of the Upsilon to a Light CP-Odd Higgs Boson
• Search for Production of Invisible Final States in Single-Photon Decays of Upsilon(1S)
• New constraints on a light CP-odd Higgs boson and related NMSSM Ideal Higgs Scenarios
• Discovering the Higgs with Low Mass Muon Pairs
• Radiative quarkonium decays and the NMSSM Higgs interpretation of the HyperCP Sigma+ --> p mu+mu- events

Cited by in corpus (36)

• Physics Beyond Colliders at CERN: Beyond the Standard Model Working Group Report
• Exotic Decays of the 125 GeV Higgs Boson
• A taste of dark matter: Flavour constraints on pseudoscalar mediators
• Dark Matter through the Higgs portal
• Flavor probes of axion-like particles
• Decay and Detection of a Light Scalar Boson Mixing with the Higgs
• Phenomenology of a very light scalar (100 MeV $<m_h<$ 10 GeV) mixing with the SM Higgs
• Pseudoscalar Mediators: A WIMP model at the Neutrino Floor
• Probing dark sectors with long-lived particles at BELLE II
• Long Lived Light Scalars as Probe of Low Scale Seesaw Models
• R-axion at colliders
• Collider constraints on light pseudoscalars
• Light NMSSM Neutralino Dark Matter in the Wake of CDMS II and a 126 GeV Higgs
• A light NMSSM pseudoscalar Higgs boson at the LHC redux
• Unleashing the full power of LHCb to probe Stealth New Physics
• Probing the $\mu \nu$SSM with light scalars, pseudoscalars and neutralinos from the decay of a SM-like Higgs boson at the LHC
• Particle Physics Implications and Constraints on Dark Matter Interpretations of the CDMS Signal
• Searching for new spin-0 resonances at LHCb
• Detection prospects of light NMSSM Higgs pseudoscalar via cascades of heavier scalars from vector boson fusion and Higgs-strahlung
• Updated Collider and Direct Detection Constraints on Dark Matter Models for the Galactic Center Gamma-Ray Excess
• Detecting multimuon jets from the Higgs exotic decays in the Higgs portal framework
• Alignment without Decoupling: the Portal to Light Dark Matter in the MSSM
• Search for a light CP-odd Higgs boson in the radiative decays of J/psi
• Hunting physics beyond the standard model with unusual $W^{\pm }$ and $Z$ decays
• Search for a light Higgs resonance in radiative decays of the Y(1S) with a charm tag
• Limits on ALP-neutrino couplings from loop-level processes
• Is light thermal scalar dark matter possible?
• TAU2012 Summary
• Experimental review of the ${\rm Y}(1S,2S,3S)$ physics at $e^{+}{e}^{-}$ colliders and the LHC
• Prospects for detecting the couplings of axion-like particle with neutrinos at the CEPC
• Search for a light Higgs boson in single-photon decays of ${\rm Y}(1S)$ using ${\rm Y}(2S)\to {\pi }^{+}{\pi }^{-}{\rm Y}(1S)$ tagging method
• Searches for Light Scalars, Pseudoscalars, and Gauge Bosons
• Review of a light NMSSM pseudoscalar Higgs state production at the LHC
• Constraints on Heavy Neutral Leptons interacting with a singlet scalar
• Light Higgs and Dark Photon Searches at BABAR
• Low mass New Physics search for a CP-odd Higgs boson $A^0$ deacying to $s\bar{s}$ or gluon gluon at BaBar