Another step towards a no-lose theorem for NMSSM Higgs discovery at the LHC

Moretti, Stefano; Munir, Shoaib; Poulose, Poulose

doi:10.1016/j.physletb.2006.10.070

Cited by 45 publications

(41 citation statements)

References 61 publications

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“…As for present accelerator machines, chiefly the Tevatron at FNAL and the Large Hadron Collider (LHC) at CERN, quite some work has been dedicated to probing the NMSSM Higgs sector over recent years. Primarily, there have been attempts to extend the so-called 'No-lose theorem' of the MSSM -stating that at least one MSSM Higgs boson should be observed via the usual SM-like production and decay channels at the LHC throughout the entire MSSM parameter space [8] -to the case of the NMSSM [6,9,10,12,13]. From this perspective, it was realised that at least one NMSSM Higgs boson should remain observable at the LHC over the NMSSM parameter space that does not allow any Higgs-to-Higgs decay.…”

Section: Introductionmentioning

confidence: 99%

Low mass Higgs signals at the LHC in the Next-to-Minimal Supersymmetric Standard Model

Almarashi

Moretti

2011

Eur. Phys. J. C

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In the NMSSM, because of introducing a complex singlet superfield, the lightest CP-odd Higgs boson, a 1 , can be a singlet-like state with a tiny doublet component in large regions of parameter space. In this paper, we examine the discovery potential of a 1 produced in association with a bottom-antibottom pair at the LHC through τ + τ − and γγ decay modes. It is shown that an a 1 with mass ≤ M Z can be extracted from the SM backgrounds by using the τ + τ − decay channel, a possibility precluded to the MSSM. In contrast, the γγ decay mode is overwhelmed by backgrounds despite the fact that the branching ratio of this mode can reach unity when a 1 is a pure singlet.

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Section: Introductionmentioning

confidence: 99%

Low mass Higgs signals at the LHC in the Next-to-Minimal Supersymmetric Standard Model

Almarashi

Moretti

2011

Eur. Phys. J. C

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“…Their work also studied the 2b2τ mode and found that it's prospects were not as promising. For older work on the 4b and 2b 2τ modes, see (79,80,81,82,83,84).…”

Section: Higgs Decays To Scalarsmentioning

confidence: 99%

Nonstandard Higgs Boson Decays

Chang

Dermíšek

Gunion

et al. 2008

Annu. Rev. Nucl. Part. Sci.

146

150

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“…In recent years much effort has been focused on establishing a "nolose theorem" at the LHC in which detection of at least one Higgs boson in the NMSSM is guaranteed. However, the potential importance of the decay h 1 → A 1 A 1 [21], [28] has prevented such a theorem being established [19], [29], [30], [31], [32]. Moreover, it has been shown that a large branching ratio for h 1 → A 1 A 1 would weaken the LEP bounds for a SM like h 1 in the NMSSM [2].…”

Section: H ± In the Nmssmmentioning

confidence: 99%

Charged Higgs bosons in the next-to MSSM (NMSSM)

2008

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The charged Higgs boson decays H ± → W ± A 1 and H ± → W ± h i are studied in the framework of the next-to Minimal Supersymmetric Standard Model (NMSSM). It is found that the decay rate for H ± → W ± A 1 can exceed the rates for the τ ± ν and tb channels both below and above the top-bottom threshold. The dominance of H ± → W ± A 1 is most readily achieved when A 1 has a large doublet component and small mass. We also study the production process pp → H ± A 1 at the LHC followed by the decay H ± → W ± A 1 which leads to the signature W ± A 1 A 1 . We suggest that pp → H ± A 1 is a promising discovery channel for a light charged Higgs boson in the NMSSM with small or moderate tan β and dominant decay mode H ± → W ± A 1 . This W ± A 1 A 1 signature can also arise from the Higgsstrahlung process pp → W ± h 1 followed by the decay h 1 → A 1 A 1 . It is shown that there exist regions of parameter space where these processes can have comparable cross sections and we suggest that their respective signals can be distinguished at the LHC by using appropriate reconstruction methods.

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Another step towards a no-lose theorem for NMSSM Higgs discovery at the LHC

Cited by 45 publications

References 61 publications

Low mass Higgs signals at the LHC in the Next-to-Minimal Supersymmetric Standard Model

Low mass Higgs signals at the LHC in the Next-to-Minimal Supersymmetric Standard Model

Nonstandard Higgs Boson Decays

Charged Higgs bosons in the next-to MSSM (NMSSM)

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