Phenomenology of a very light scalar (100 MeV < mh< 10 GeV) mixing with the SM Higgs
By J. Clarke, Robin Foot, R. Volkas. 2013
153 citations recorded by the source corpus.
A bstractIn this paper we investigate the phenomenology of a very light scalar, h, with mass 100 MeV < mh < 10 GeV, mixing with the SM Higgs. As a benchmark model we take the real singlet scalar extension of the SM. We point out apparently unresolved uncertainties in the branching ratios and lifetime of h in a crucial region of parameter space for LHC phenomenology. Bounds from LEP, meson decays and fixed target experiments are reviewed. We also examine prospects at the LHC. For mh ≲ mB the dominant production mechanism is via meson decay; our main result is the calculation of the differential pT spectrum of h scalars originating from B mesons and the subsequent prediction of up to thousands of moderate (triggerable) pT displaced dimuons possibly hiding in the existing dataset at ATLAS/CMS or at LHCb. We also demonstrate that the subdominant V h production channel has the best sensitivity for mh ≳ mB and that future bounds in this region could conceivably compete with those of LEP.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/2829ef6fc72f8685530fe4896213a9bd33dc2a26
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In Nuclear and High Energy Physics
- Igor G. Irastorza
- A. Ringwald
- P. Schuster
- J. Jaeckel
- Felix Kahlhoefer
- J. Redondo
- G. Lanfranchi
- S. Knapen
Citations in the corpus
- ALPtraum: ALP production in proton beam dump experiments (2015, methodology): “The two most constraining experiments are9 CHARM [12], which has recently been used to derive constraints on light scalars and pseudoscalars with couplings to quarks [33, 34], and NuCal [5], which has been reanalysed for the case of hidden photons [23, 24].”
- Physics beyond colliders at CERN: beyond the Standard Model working group report (2019, background): “Bounds on this scenario come from recast of data from old beam dump experiments [247, 248], bump hunt in visible B meson decays [249–251] and cosmological and astrophysical arguments, as explained below.”