Strongly Interacting Light Dark Matter

Bruggisser, Sebastian; Riva, Francesco; Urbano, Alfredo

doi:10.21468/scipostphys.3.3.017

Cited by 35 publications

(45 citation statements)

References 88 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this work, we rely on a simplified effective field theory approach where the form of the Lagrangian is inspired by such pNGB setups, with all specific and modeldependent assumptions for the new physics masses and couplings being, however, relaxed. As already pointed out in the literature, this effective Lagrangian approach is appropriate for interpreting LHC missing energy signatures within frameworks featuring light dark matter particles interacting with the Standard Model via non-renormalizable derivative operators [13,14]. Momentum-dependent interactions between the Standard Model and a dark sector may also have alternative motivations, as well as interesting phenomenological consequences alternative to monojet searches, see e.g.…”

Section: Jhep01(2017)078mentioning

confidence: 85%

“…light scalar fields connected to the spontaneous breaking of a global symmetry at an energy scale f . More concretely, this class of models includes composite Higgs scenarios where the set of pNGBs involves the Higgs boson and possibly extra dark scalar particles [9][10][11][12][13][14]. In this case, the pNGB shift symmetry indeed only allows for derivative (momentum-dependent) pNGB interactions suppressed by powers of the scale f .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Monojet searches for momentum-dependent dark matter interactions

Barducci

Bharucha

Desai

et al. 2017

J. High Energ. Phys.

View full text Add to dashboard Cite

We consider minimal dark matter scenarios featuring momentum-dependent couplings of the dark sector to the Standard Model. We derive constraints from existing LHC searches in the monojet channel, estimate the future LHC sensitivity for an integrated luminosity of 300 fb −1 , and compare with models exhibiting conventional momentumindependent interactions with the dark sector. In addition to being well motivated by (composite) pseudo-Goldstone dark matter scenarios, momentum-dependent couplings are interesting as they weaken direct detection constraints. For a specific dark matter mass, the LHC turns out to be sensitive to smaller signal cross-sections in the momentum-dependent case, by virtue of the harder jet transverse-momentum distribution.

show abstract

Section: Jhep01(2017)078mentioning

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Monojet searches for momentum-dependent dark matter interactions

Barducci

Bharucha

Desai

et al. 2017

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…(5) is equivalent to the one presented in Refs. [49,50], with a different choice for the operator basis. Our normalization is such that the b, c and d coefficients have maximal size of O(1), according to the SILH power counting [48].…”

Section: Pseudo Nambu-goldstone Boson Dark Mattermentioning

confidence: 99%

A global view of the off-shell Higgs portal

2020

View full text Add to dashboard Cite

We study for the first time the collider reach on the derivative Higgs portal, the leading effective interaction that couples a pseudo Nambu-Goldstone boson (pNGB) scalar Dark Matter to the Standard Model. We focus on Dark Matter pair production through an off-shell Higgs boson, which is analyzed in the vector boson fusion channel. A variety of future high-energy lepton colliders as well as hadron colliders are considered, including CLIC, a muon collider, the High-Luminosity and High-Energy versions of the LHC, and FCC-hh. Implications on the parameter space of pNGB Dark Matter are discussed. In addition, we give improved and extended results for the collider reach on the marginal Higgs portal, under the assumption that the new scalars escape the detector, as motivated by a variety of beyond the Standard Model scenarios. *

show abstract

“…One of the most interesting ramifications of SIMP models is that they naturally give rise to dark-matter self-interactions with cross sections sufficiently large that dark-matter scattering can have an observable impact on structure formation [97]. Such composite darkmatter models can have other phenomenological consequences as well, both at indirect-detection experiments [98,99] and at colliders [100][101][102][103]. Finally, the presence of additional non-Abelian gauge sectors, each with their own analogue of the QCD Θ-angle, could have potential implications for the physics of axions and axion-like particles [104].…”

Section: Discussionmentioning

confidence: 99%

Dynamical Dark Matter from strongly-coupled dark sectors

Huang

Thomas

2017

Phys. Rev. D

View full text Add to dashboard Cite

Dynamical Dark Matter (DDM) is an alternative framework for dark-matter physics in which the dark sector comprises a vast ensemble of particle species whose Standard-Model decay widths are balanced against their cosmological abundances. Previous studies of this framework have focused on a particular class of DDM ensembles-motivated primarily by Kaluza-Klein towers in theories with extra dimensions-in which the density of dark states scales roughly as a polynomial of the mass. In this paper, by contrast, we study the properties of a different class of DDM ensembles in which the density of dark states grows exponentially with mass. Ensembles with this Hagedorn-like property arise naturally as the "hadronic" resonances associated with the confining phase of a strongly-coupled dark sector; they also arise naturally as the gauge-neutral bulk states of Type I string theories. We study the dynamical properties of such ensembles, and demonstrate that an appropriate DDM-like balancing between decay widths and abundances can emerge naturally-even with an exponentially rising density of states. We also study the effective equations of state for such ensembles, and investigate some of the model-independent observational constraints on such ensembles that follow directly from these equations of state. In general, we find that such constraints tend to introduce correlations between various properties of these DDM ensembles such as their associated mass scales, lifetimes, and abundance distributions. For example, we find that these constraints allow DDM ensembles with energy scales ranging from the GeV scale all the way to the Planck scale, but that the total present-day cosmological abundance of the dark sector must be spread across an increasing number of different states in the ensemble as these energy scales are dialed from the Planck scale down to the GeV scale. Numerous other correlations and constraints are also discussed.

show abstract

Strongly Interacting Light Dark Matter

Cited by 35 publications

References 88 publications

Monojet searches for momentum-dependent dark matter interactions

Monojet searches for momentum-dependent dark matter interactions

A global view of the off-shell Higgs portal

Dynamical Dark Matter from strongly-coupled dark sectors

Contact Info

Product

Resources

About