Effective field theory analysis of dark matter-standard model interactions with spin one mediators

Fabiola, Fortuna,; Roig, Pablo; Wudka, José

doi:10.1007/jhep02(2021)223

Cited by 10 publications

(2 citation statements)

References 105 publications

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“…This will in turn allow the heavier between φ and X to decay into the other and provides a single component DM model. The phenomenology of such higher dimensional operator to study DM production of X in context of both freeze-in (see [64,87]) and freeze out limit [88][89][90][91][92][93][94][95][96] has been studied. Therefore having two different symmetries for two DM components is necessary, which prohibits an operator like in eq.…”

Section: Jhep07(2022)091mentioning

confidence: 99%

Electroweak symmetry breaking and WIMP-FIMP dark matter

Bhattacharya

Chakraborti

Pradhan

2022

J. High Energ. Phys.

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Electroweak Symmetry Breaking (EWSB) is known to produce a massive universe that we live in. However, it may also provide an important boundary for freeze-in or freeze-out of dark matter (DM) connected to Standard Model via Higgs portal as processes contributing to DM relic differ across the boundary. We explore such possibilities in a two-component DM framework, where a massive U(1)X gauge boson DM freezes-in and a scalar singlet DM freezes-out, that inherits the effect of EWSB for both the cases in a correlated way. Amongst different possibilities, we study two sample cases; first when one DM component freezes in and the other freezes out from thermal bath both necessarily before EWSB and the second, when both freeze-in and freeze-out occur after EWSB. We find some prominent distinctive features in the available parameter space of the model for these two cases, after addressing relic density and the recent most direct search constraints from XENON1T, some of which can be borrowed in a model independent way.

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Section: Jhep07(2022)091mentioning

confidence: 99%

Electroweak symmetry breaking and WIMP-FIMP dark matter

Bhattacharya

Chakraborti

Pradhan

2022

J. High Energ. Phys.

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“…Dark matter can associate with the visable sector through a variety of portals. For example, the Higgs portals [17][18][19][20][21][22][23][24][25][26][27][28][29], the Z portals [30][31][32][33], the fermion portals [34][35][36][37], the photon or dark photon portals [38][39][40] and others [41][42][43][44][45][46][47][48]. Given that most evidence for the existence of DM comes from its gravitational effects, the unique gravity portal dark matter is widely studied [49][50][51][52][53][54][55][56][57][58][59][60][61][62][63][64].…”

Section: Introductionmentioning

confidence: 99%

Gravity-Higgs portal for dark matter decay

Sun¹

2021

Preprint

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Dark matter can decay via gravity portals and contribute a minor decay (MD) width. This paper proposes that nonminimal coupling between the Higgs field and gravity can lead to additional gravity-Higgs portals for gravitational dark matter to decay and contribute additional decay (AD) width. For scalar dark matter candidates with a mass less than 5 TeV, the decay branching ratios are almost independent of whether dark matter decay through gravity portals or gravity-Higgs portals; therefore, it is almost impossible to distinguish gravity portals from gravity-Higgs portals by observing decay products. For fermionic singlet dark matter candidates, their MD products are diverse, while their AD products are monotonous, only neutrinos and Higgs bosons. As for both dark matter candidates, gravity-Higgs portals prefer to dominate the decay at around several hundred GeV. Besides, for both TeV dark matter candidates, there is still a vast parameter space alive.

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Unitarity bounds on effective field theories at the LHC

Cohen

Doss

2022

J. High Energ. Phys.

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Effective Field Theory (EFT) extensions of the Standard Model are tools to compute observables (e.g. cross sections with partonic center-of-mass energy $$ \sqrt{\hat{s}} $$ s ̂ ) as a systematically improvable expansion suppressed by a new physics scale M. If one is interested in EFT predictions in the parameter space where M <$$ \sqrt{\hat{s}} $$ s ̂ , concerns of self-consistency emerge, which can manifest as a violation of perturbative partial-wave unitarity. However, when we search for the effects of an EFT at a hadron collider with center-of-mass energy $$ \sqrt{s} $$ s using an inclusive strategy, we typically do not have access to the event-by-event value of $$ \sqrt{\hat{s}} $$ s ̂ . This motivates the need for a formalism that incorporates parton distribution functions into the perturbative partial-wave unitarity analysis. Developing such a framework and initiating an exploration of its implications is the goal of this work. Our approach opens up a potentially valid region of the EFT parameter space where M ≪ $$ \sqrt{s} $$ s . We provide evidence that there exist valid EFTs in this parameter space. The perturbative unitarity bounds are sensitive to the details of a given search, an effect we investigate by varying kinematic cuts.

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Effective field theory analysis of dark matter-standard model interactions with spin one mediators

Cited by 10 publications

References 105 publications

Electroweak symmetry breaking and WIMP-FIMP dark matter

Electroweak symmetry breaking and WIMP-FIMP dark matter

Gravity-Higgs portal for dark matter decay

Unitarity bounds on effective field theories at the LHC

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