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Updated constraints from radiative $\Upsilon$ decays on a light CP-odd Higgs
High Energy Physics - Phenomenology · Submitted 22 Oct 2010
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Combining these two effects, we set constraints on the properties of the CP-odd Higgs in the limit of small photon energy of $BR(\Upsilon\to\gamma\,\tau^+\tau^-)$, that is on the pseudoscalar mass-range $\sim8-10$GeV.
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The abstract, sentence by sentence
The possible existence of a light CP-odd Higgs state in many new-physics models could lead to observable effects in the bottomonium sector. Experimental bounds on radiative $\Upsilon$ decays through such a pseudoscalar state and possible mixings with the $\eta_b^0$ states are reviewed. Combining these two effects, we set constraints on the properties of the CP-odd Higgs in the limit of small photon energy of $BR(\Upsilon\to\gamma\,\tau^+\tau^-)$, that is on the pseudoscalar mass-range $\sim8-10$GeV.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | The possible existence of a light CP-odd Higgs state in many new-physics models could lead to observable effects in the bottomonium sector. | background 1.00 | 0.06 | 0.05 | hedged possibility 1.00 |
| s1 | Experimental bounds on radiative $\Upsilon$ decays through such a pseudoscalar state and possible mixings with the $\eta_b^0$ states are reviewed. | background 0.52 | 0.12 | 0.05 | asserted 0.74 |
| s2 | Combining these two effects, we set constraints on the properties of the CP-odd Higgs in the limit of small photon energy of $BR(\Upsilon\to\gamma\,\tau^+\tau^-)$, that is on the pseudoscalar mass-range $\sim8-10$GeV. | result 0.78 | 0.86 | 0.83 | asserted 0.99 |
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The paper
Original abstract
The possible existence of a light CP-odd Higgs state in many new-physics models could lead to observable effects in the bottomonium sector. Experimental bounds on radiative $\Upsilon$ decays through such a pseudoscalar state and possible mixings with the $\eta_b^0$ states are reviewed. Combining these two effects, we set constraints on the properties of the CP-odd Higgs in the limit of small photon energy of $BR(\Upsilon\to\gamma\,\tau^+\tau^-)$, that is on the pseudoscalar mass-range $\sim8-10$GeV.
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References
How the literature uses it
11 arXiv papers cite this in 16 sentences
Papers citing it · 14 sentences without a confident label
Uses its data or values 1 paper
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The $90% C.L.$ upper limits on the branching fraction of these search signatures are typically of $∼𝒪(10^-4-10^-6)$ and are listed for representative values of the light Higgs mass in Tab. [ref] (cf. also Refs. [ref] for more details).
Status of the Higgs Singlet Extension of the Standard Model after LHC Run 1 · Low mass region · 0.86
Cites it as background 1 paper
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Mixing with a CP-odd Higgs boson could alter the behavior of the $η_b$ with respect to QCD predictions [ref] .
Measurement of prompt J/psi pair production in pp collisions at sqrt(s) = 7 TeV · Introduction · 0.87
What it cites · 48 sentences without a confident label
Uses the method or tool of 4 papers
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The branching ratio $BR(A^0→τ^+τ^-)$ (also $BR(A^0→μ^+μ^-)$) that we use is obtained with the public code NMSSMTools [ref] .
NMHDECAY: A Fortran Code for the Higgs Masses, Couplings and Decay Widths in the NMSSM · Introduction · 1.00
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The off-diagonal terms $δm_n^2$ can be computed in a non-relativistic quark-potential model [ref] : [equation] where the $η_b^0(nS)$ wave-functions $R_η_b(nS)$ were estimated through those of the $Υ(nS)$ states, which can be extracted, in turn, from the leptonic decays $Υ(nS)→l^+l^-$ [ref] .
Radiative Upsilon decays and a light pseudoscalar Higgs in the NMSSM · Direct bounds on $BR(Υ→γA^0)$ and Mixing $A^0-η_b$ · 0.92
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The off-diagonal terms $δm_n^2$ can be computed in a non-relativistic quark-potential model [ref] : [equation] where the $η_b^0(nS)$ wave-functions $R_η_b(nS)$ were estimated through those of the $Υ(nS)$ states, which can be extracted, in turn, from the leptonic decays $Υ(nS)→l^+l^-$ [ref] .
Hunting a light CP-odd non-standard Higgs boson through its tauonic decay at a (Super) B factory · Direct bounds on $BR(Υ→γA^0)$ and Mixing $A^0-η_b$ · 0.92
Uses data or values from 8 papers
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([ref]) with the experimental limits from Cleo [ref] and BaBar [ref] on $BR(Υ(1S/3S)→γ(A^0→μ^+μ^-/τ^+τ^-))$, one obtains upper bounds on $X_d$ as a function of $m_A$ [ref] , as shown in fig.
Radiative Upsilon decays and a light pseudoscalar Higgs in the NMSSM · Direct bounds on $BR(Υ→γA^0)$ and Mixing $A^0-η_b$ · 0.84
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([ref]) with the experimental limits from Cleo [ref] and BaBar [ref] on $BR(Υ(1S/3S)→γ(A^0→μ^+μ^-/τ^+τ^-))$, one obtains upper bounds on $X_d$ as a function of $m_A$ [ref] , as shown in fig.
Search for Light CP-odd Higgs in Radiative Decays of Upsilon(1S) · Direct bounds on $BR(Υ→γA^0)$ and Mixing $A^0-η_b$ · 0.84
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([ref]) with the experimental limits from Cleo [ref] and BaBar [ref] on $BR(Υ(1S/3S)→γ(A^0→μ^+μ^-/τ^+τ^-))$, one obtains upper bounds on $X_d$ as a function of $m_A$ [ref] , as shown in fig.
Search for a low-mass Higgs boson in Y(3S)-->gamma A^0, A^0-->tau^+tau^- at BABAR · Direct bounds on $BR(Υ→γA^0)$ and Mixing $A^0-η_b$ · 0.84
Compares with 1 paper
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It was noted that the corresponding value can be slightly different from the output of Hdecay [ref] .
New constraints on a light CP-odd Higgs boson and related NMSSM Ideal Higgs Scenarios · Introduction · 0.86
Cites as background 6 papers
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Significant corrections to the Yukawa couplings are known to develop at large $tanβ$, due to loops of supersymmetric particles (see e.g. [ref] ).
The supersymmetric Higgs sector and B-Bbar mixing for large tan beta · Introduction · 0.83
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Several new-physics models provide a natural framework to embed these particles: MSSM with CP-violating Higgs sector [ref] , $U(1)$-extensions of the MSSM [ref] , Little-Higgs models, (non-supersymmetric) Two-Higgs Doublet models [ref] , etc.
Collider Probes of the MSSM Higgs Sector with Explicit CP Violation · Introduction · 0.87
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Several new-physics models provide a natural framework to embed these particles: MSSM with CP-violating Higgs sector [ref] , $U(1)$-extensions of the MSSM [ref] , Little-Higgs models, (non-supersymmetric) Two-Higgs Doublet models [ref] , etc.
The Higgs Sector in a $U(1)^\prime$ Extension of the MSSM · Introduction · 0.87
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