Searching for pseudo Nambu-Goldstone boson dark matter production in association with top quarks

Abstract Pseudo Nambu-Goldstone bosons (pNGBs) are attractive dark matter (DM) candidates, since they couple to the Standard Model (SM) predominantly through derivative interactions. Thereby they naturally evade the strong existing limits inferred from DM direct detection experiments. Working in an effective field theory that includes both derivative and non-derivative DM-SM operators, we perform a detailed phenomenological study of the Large Hadron Collider reach for pNGB DM production in association with top quarks. Drawing on motivated benchmark scenarios as examples, we compare our results to other collider limits as well as the constraints imposed by DM (in) direct detection experiments and the relic abundance. We furthermore explore implications on the viable parameter space of pNGB DM. In particular, we demonstrate that DM direct detection experiments become sensitive to many pNGB DM realisations once loop-induced interactions are taken into account. The search strategies and pNGB DM benchmark models that we discuss can serve as a starting point for dedicated experimental analyses by the ATLAS and the CMS collaborations.

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Heavy dark matter through the dilaton portal

Journal of High Energy Physics ◽

10.1007/jhep10(2020)044 ◽

2020 ◽

Vol 2020 (10) ◽

Author(s):

Benjamin Fuks ◽

Mark D. Goodsell ◽

Dong Woo Kang ◽

Pyungwon Ko ◽

Seung J. Lee ◽

...

Keyword(s):

Dark Matter ◽

Direct Detection ◽

Effective Field ◽

Matter Density ◽

Field Theories ◽

Majorana Fermion ◽

Dark Sector ◽

Gauge Invariant ◽

Matter Production ◽

Invariant Formulation

Abstract We re-examine current and future constraints on a heavy dilaton coupled to a simple dark sector consisting of a Majorana fermion or a Stückelberg vector field. We include three different treatments of dilaton-Higgs mixing, paying particular attention to a gauge-invariant formulation of the model. Moreover, we also invite readers to re-examine effective field theories of vector dark matter, which we show are missing important terms. Along with the latest Higgs coupling data, heavy scalar search results, and dark matter density/direct detection constraints, we study the LHC bounds on the model and estimate the prospects of dark matter production at the future HL-LHC and 100 TeV FCC colliders. We additionally compute novel perturbative unitarity constraints involving vector dark matter, dilaton and gluon scattering.

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Non-thermal production of pNGB dark matter and inflation

Journal of High Energy Physics ◽

10.1007/jhep03(2021)130 ◽

2021 ◽

Vol 2021 (3) ◽

Author(s):

Yoshihiko Abe ◽

Takashi Toma ◽

Koichi Yoshioka

Keyword(s):

Dark Matter ◽

Symmetry Breaking ◽

Direct Detection ◽

Goldstone Boson ◽

Beyond The Standard Model ◽

Dark Matter Mass ◽

Wide Range ◽

Single Field ◽

Relic Abundance ◽

Higgs Portal

Abstract A pseudo Nambu-Goldstone boson (pNGB) is a natural candidate of dark matter in that it avoids the severe direct detection bounds. We show in this paper that the pNGB has another different and interesting face with a higher symmetry breaking scale. Such large symmetry breaking is motivated by various physics beyond the standard model. In this case, the pNGB interaction is suppressed due to the Nambu-Goldstone property and the freeze-out production does not work even with sufficiently large portal coupling. We then study the pNGB dark matter relic abundance from the out-of-equilibrium production via feeble Higgs portal coupling. Further, a possibility is pursued the symmetry breaking scalar in the pNGB model plays the role of inflaton. The inflaton and dark matter are unified in a single field and the pNGB production from inflaton decay is inevitable. For these non-thermally produced relic abundance of pNGB dark matter and successful inflation, we find that the dark matter mass should be less than a few GeV in the wide range of the reheating temperature and the inflaton mass.

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Model-independent constraints with extended dark matter EFT

Journal of High Energy Physics ◽

10.1007/jhep10(2020)172 ◽

2020 ◽

Vol 2020 (10) ◽

Cited By ~ 1

Author(s):

Tommi Alanne ◽

Giorgio Arcadi ◽

Florian Goertz ◽

Valentin Tenorth ◽

Stefan Vogl

Keyword(s):

Dark Matter ◽

Parameter Space ◽

Direct Detection ◽

Vector Boson ◽

Effective Field ◽

Indirect Detection ◽

Effective Theory ◽

Dark Sector ◽

Model Independent ◽

Relic Abundance

Abstract We systematically explore the phenomenology of the recently proposed extended dark matter effective field theory (eDMeft), which allows for a consistent effective description of DM scenarios across different energy scales. The framework remains applicable at collider energies and is capable of reproducing the correct relic abundance by including a dynamical mediator particle to the dark sector, while maintaining correlations dictated by gauge invariance in a ‘model-independent’ way. Taking into account present and future constraints from direct- and indirect-detection experiments, from collider searches for missing energy and for scalar resonances in vector-boson, di-jet, and Higgs-pair final states, as well as from the relic abundance as measured by Planck, we determine viable regions in the parameter space, both for scalar and pseudoscalar mediator. In particular, we point out regions where cancellations in the direct-detection cross section appear leading to allowed islands for scalar mediators that could be missed in a naive simplified-model approach, but are present in the full D = 5 effective theory, as well as a general opening of the parameter space due to consistently considering all operators at a given mass dimension. Thus, canonical WIMP-like scenarios can survive even the next generation of direct-detection experiments in different mass regimes, while potentially becoming testable at the high-luminosity LHC.

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Searching for dark matter at hadron colliders

International Journal of Modern Physics A ◽

10.1142/s0217751x14300415 ◽

2014 ◽

Vol 29 (23) ◽

pp. 1430041 ◽

Cited By ~ 25

Author(s):

Andrew Askew ◽

Sushil Chauhan ◽

Björn Penning ◽

William Shepherd ◽

Mani Tripathi

Keyword(s):

Dark Matter ◽

Direct Detection ◽

Hadron Collider ◽

Effective Field ◽

Current Status ◽

Hadron Colliders ◽

Proton Proton ◽

Proton Collisions ◽

8 Tev ◽

Proton Proton Collisions

Theoretical and experimental techniques employed in dedicated searches for dark matter at hadron colliders are reviewed. Bounds from the 7 TeV and 8 TeV proton–proton collisions at the Large Hadron Collider (LHC) on dark matter interactions have been collected and the results interpreted. We review the current status of the Effective Field Theory picture of dark matter interactions with the Standard Model. Currently, LHC experiments have stronger bounds on operators leading to spin-dependent scattering than direct detection experiments, while direct detection probes are more constraining for spin-independent scattering for WIMP masses above a few GeV.

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

Journal of High Energy Physics ◽

10.1007/jhep02(2021)223 ◽

2021 ◽

Vol 2021 (2) ◽

Author(s):

Fabiola Fortuna ◽

Pablo Roig ◽

José Wudka

Keyword(s):

Field Theory ◽

Dark Matter ◽

Standard Model ◽

Effective Field Theory ◽

Gamma Ray ◽

Direct Detection ◽

Effective Field ◽

Indirect Detection ◽

Theory Analysis ◽

Invisible Decay

Abstract We analyze interactions between dark matter and standard model particles with spin one mediators in an effective field theory framework. In this paper, we are considering dark particles masses in the range from a few MeV to the mass of the Z boson. We use bounds from different experiments: Z invisible decay width, relic density, direct detection experiments, and indirect detection limits from the search of gamma-ray emissions and positron fluxes. We obtain solutions corresponding to operators with antisymmetric tensor mediators that fulfill all those requirements within our approach.

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Dark Matter production from relativistic bubble walls

Journal of High Energy Physics ◽

10.1007/jhep03(2021)288 ◽

2021 ◽

Vol 2021 (3) ◽

Author(s):

Aleksandr Azatov ◽

Miguel Vanvlasselaer ◽

Wen Yin

Keyword(s):

Phase Transition ◽

Dark Matter ◽

Electroweak Phase Transition ◽

First Order ◽

Matter Production ◽

First Order Phase Transition ◽

Relic Abundance ◽

Higgs Portal ◽

First Order Phase ◽

Gravitational Background

Abstract In this paper we present a novel mechanism for producing the observed Dark Matter (DM) relic abundance during the First Order Phase Transition (FOPT) in the early universe. We show that the bubble expansion with ultra-relativistic velocities can lead to the abundance of DM particles with masses much larger than the scale of the transition. We study this non-thermal production mechanism in the context of a generic phase transition and the electroweak phase transition. The application of the mechanism to the Higgs portal DM as well as the signal in the Stochastic Gravitational Background are discussed.

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Future prospects for the minimal supersymmetric standard model

International Journal of Modern Physics A ◽

10.1142/s0217751x21501888 ◽

2021 ◽

pp. 2150188

Author(s):

Shehu AbdusSalam ◽

Safura S. Barzani ◽

Mohammadreza Noormandipour

Keyword(s):

Dark Matter ◽

Standard Model ◽

Supersymmetric Standard Model ◽

Minimal Supersymmetric Standard Model ◽

Cold Dark Matter ◽

Direct Detection ◽

Hadron Collider ◽

Hadron Colliders ◽

Future Prospects ◽

Lower Limits

Experimental collaborations for the large hadron collider conducted various searches for supersymmetry. In the absence of signals, lower limits were put on sparticle masses but usually within frameworks with (over-)simplifications relative to the entire indications by supersymmetry models. For complementing current interpretations of experimental bounds, we introduce a 30-parameter version of the R-parity conserving Minimal Supersymmetric Standard Model (MSSM-30). Using a sample of the MSSM-30 which are in harmony with cold dark matter, flavor and precision electroweak constraints, we explicitly show the prospects for assessing neutralino candidate dark matter in contrast to future searches for supersymmetry. The MSSM-30-parameter regions that are beyond reach to dark matter direct detection experiments could be probed by future hadron–hadron colliders.

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