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Detection of the neutral MSSM Higgs bosons in the intense-coupling regime at the LHC
High Energy Physics - Phenomenology · Submitted 7 Jul 2003
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim Using an event generator analysis and a fast detector simulation, we show that only the process $pp \to b\bar{b} \mu^+ \mu^-$, when at least one of the $b$-quarks is detected, is viable.
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The abstract, sentence by sentence
We analyse the prospects to detect at the LHC the neutral Higgs particles of the Minimal Supersymmetric Standard Model, when the masses of the two CP-even $h,H$ and of the CP-odd $A$ boson are close to one another, and the value of $\tb$ is large. In this "intense-coupling regime", the Higgs bosons have strongly enhanced couplings to isospin down-type fermions and large total decay widths, so that the $\gamma \gamma, WW^*$ and $ZZ^*$ decay modes of the three Higgs bosons are strongly suppressed. We advocate the use of the decays into muon pairs, $h,H,A \to \mu^+ \mu^-$, to resolve the three Higgs boson peaks: although the branching ratios are small, ${\cal O}(10^{4})$, the resolution on muons is good enough to allow for their detection, if the mass splitting is large enough. Using an event generator analysis and a fast detector simulation, we show that only the process $pp \to b\bar{b} \mu^+ \mu^-$, when at least one of the $b$-quarks is detected, is viable.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We analyse the prospects to detect at the LHC the neutral Higgs particles of the Minimal Supersymmetric Standard Model, when the masses of the two CP-even $h,H$ and of the CP-odd $A$ boson are close to one another, and the value of $\tb$ is large. | contribution 0.77 | 0.60 | 0.05 | asserted 0.40 |
| s1 | In this "intense-coupling regime", the Higgs bosons have strongly enhanced couplings to isospin down-type fermions and large total decay widths, so that the $\gamma \gamma, WW^*$ and $ZZ^*$ decay modes of the three Higgs bosons are strongly suppressed. | background 0.84 | 0.19 | 0.06 | asserted 1.00 |
| s2 | We advocate the use of the decays into muon pairs, $h,H,A \to \mu^+ \mu^-$, to resolve the three Higgs boson peaks: although the branching ratios are small, ${\cal O}(10^{4})$, the resolution on muons is good enough to allow for their detection, if the mass splitting is large enough. | method 0.56 | 0.35 | 0.50 | hedged possibility 0.71 |
| s3 | Using an event generator analysis and a fast detector simulation, we show that only the process $pp \to b\bar{b} \mu^+ \mu^-$, when at least one of the $b$-quarks is detected, is viable. | result 0.90 | 0.95 | 0.63 | asserted 1.00 |
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The paper
Original abstract
We analyse the prospects to detect at the LHC the neutral Higgs particles of the Minimal Supersymmetric Standard Model, when the masses of the two CP-even $h,H$ and of the CP-odd $A$ boson are close to one another, and the value of $\tb$ is large. In this "intense-coupling regime", the Higgs bosons have strongly enhanced couplings to isospin down-type fermions and large total decay widths, so that the $\gamma \gamma, WW^*$ and $ZZ^*$ decay modes of the three Higgs bosons are strongly suppressed. We advocate the use of the decays into muon pairs, $h,H,A \to \mu^+ \mu^-$, to resolve the three Higgs boson peaks: although the branching ratios are small, ${\cal O}(10^{4})$, the resolution on muons is good enough to allow for their detection, if the mass splitting is large enough. Using an event generator analysis and a fast detector simulation, we show that only the process $pp \to b\bar{b} \mu^+ \mu^-$, when at least one of the $b$-quarks is detected, is viable.
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Several approaches towards the possibility for a light Higgs have been examined in the literature [ref] .
Detection of WIMP-like dark matter in some extensions of the Standard Model · The Light Higgs Scenario · 0.99
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