Probing multicomponent extension of inert doublet model with a vector dark matter

Chakraborti, Sreemanti; Banik, Amit Dutta; Islam, Rashidul

doi:10.1140/epjc/s10052-019-7165-x

Cited by 33 publications

(16 citation statements)

References 74 publications

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“…Non observation of DM in direct search experiments like LUX [25], XENON 1T [25][26][27], Panda X [28] put a stringent bound on this model (with mass below 1 TeV getting disallowed) due to its prediction of large spin independent (SI) direct search cross section. As an alternative, multi-component DM scenarios [29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48] are proposed where DM-DM interactions (see for example, [39,40]) play an important role to evade direct search bound.Such an attempt was made in [39], where two singlet scalars serve as two DM components, that satisfy required DM constraints. However, the framework is unable to accommodate the low mass region corresponding to both the DM's masses, simultaneously below 500 GeV, to satisfy DM direct search bounds.…”

Section: Introductionmentioning

confidence: 99%

“…However, due to gauge coupling, a single component IDM is severely constrained and is not allowed between DM mass within 80 − 550 GeV, referred as the desert region for under abundance. However, it can produce hadronically quiet single and two lepton signatures with missing energy at LHC [44,52,53]. Therefore, it is ideal to study a multipartite DM framework, involving an inert doublet to satisfy DM constraints as well as to have interesting phenomenological consequences.…”

Section: Introductionmentioning

confidence: 99%

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Two component dark matter with inert Higgs doublet: neutrino mass, high scale validity and collider searches

Bhattacharya

Ghosh

Saha

et al. 2020

J. High Energ. Phys.

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The idea of this work is to investigate the constraints on the dark matter (DM) allowed parameter space from high scale validity (absolute stability of Higgs vacuum and perturbativity) in presence of multi particle dark sector and heavy right handed neutrinos to address correct neutrino mass. We illustrate a simple two component DM model, consisting of one inert SU (2) L scalar doublet and a scalar singlet, both stabilised by additional Z 2 ×Z 2 symmetry, which also aid to vacuum stability. We demonstrate DM-DM interaction helps achieving a large allowed parameter space for both the DM components by evading direct search bound. High scale validity puts further constraints on the model, for example, on the mass splitting between the charged and neutral component of inert doublet, which has important implication to its leptonic signature(s) at the Large Hadron Collider (LHC).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Two component dark matter with inert Higgs doublet: neutrino mass, high scale validity and collider searches

Bhattacharya

Ghosh

Saha

et al. 2020

J. High Energ. Phys.

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“…These models are less constrained due to the fact that the fraction of WIMPs in these multicomponent DM has not been determined experimentally and hence is a free parameter. This has been shown to have interesting phenomenological consequences [41][42][43][44][45][46][47][48].…”

Section: Introductionmentioning

confidence: 99%

Mixed WIMP-axion dark matter

et al. 2019

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We study the experimental constraints on a model of a two-component dark matter, consisting of the QCD axion, and a scalar particle, both contributing to the dark matter relic abundance of the Universe. The global Peccei-Quinn symmetry of the theory can be spontaneously broken down to a residual Z 2 symmetry, thereby identifying this scalar as a stable weakly interacting massive particle, i.e., a dark matter candidate, in addition to the axion. We perform a comprehensive study of the model using the latest data from dark matter direct and indirect detection experiments, as well as new physics searches at the Large Hadron Collider. We find that although the model is mostly constrained by the dark matter detection experiments, it is still viable around a small region of the parameter space where the scalar dark matter is half as heavy as the Standard Model Higgs. In this allowed region, the bounds from these experiments are evaded due to a cancellation mechanism in the dark matter-Higgs coupling. The collider search results, however, are shown to impose weak bounds on the model.

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“…Such null results have not only motivated the studies of beyond thermal WIMP paradigm but also a richer DM sector consisting of multiple DM components. Some recent proposals for multi-component DM can be found in [60][61][62][63][64][65][66][67][68][69][70][71][72][73][74][75][76][76][77][78][79][80][81][82][83][84][85][86][87][88][89][90][91][92][93][94] and references therein. As several of these works pointed out, apart from having larger allowed region of parameter space due to freedom of tuning relative DM abundances, such multi-component DM scenarios often offer complementary probes at experiments spanning out to different frontiers.…”

Section: Introductionmentioning

confidence: 99%

Connecting light dirac neutrinos to a multi-component dark matter scenario in gauged $$B-L$$ model

Nanda

Borah

2020

Eur. Phys. J. C

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We propose a new gauged B − L extension of the standard model where light neutrinos are of Dirac type, naturally acquiring sub-eV mass after electroweak symmetry breaking, without any additional global symmetries. This is realised by choosing a different B − L charge for right handed neutrinos than the usual −1 so that the Dirac Yukawa coupling involves an additional neutrinophilic scalar doublet instead of the usual Higgs doublet. The model can be made anomaly free by considering four additional chiral fermions which give rise to two massive Dirac fermions by appropriate choice of singlet scalars. The choice of scalars not only helps in achieving the desired particle mass spectra via spontaneous symmetry breaking, but also leaves a remnant Z 2 × Z 2 symmetry to stabilise the two dark matter candidates. Apart from this interesting link between Dirac nature of light neutrinos and multi-component dark matter sector, we also find that the dark matter parameter space is constrained mostly by the cosmological upper limit on effective relativistic degrees of freedom N eff which gets enhanced in this model due to the thermalisation of the light right handed neutrinos by virtue of their sizeable B − L gauge interactions.

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Probing multicomponent extension of inert doublet model with a vector dark matter

Cited by 33 publications

References 74 publications

Two component dark matter with inert Higgs doublet: neutrino mass, high scale validity and collider searches

Two component dark matter with inert Higgs doublet: neutrino mass, high scale validity and collider searches

Mixed WIMP-axion dark matter

Connecting light dirac neutrinos to a multi-component dark matter scenario in gauged $$B-L$$ model

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