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We demonstrate how masses of new states, beyond direct experimental reach, could nevertheless be extracted in the framework of effective field theory (EFT), given broad assumptions on the underlying UV physics, however not sticking to a…

高能物理 - 唯象学 · 物理学 2017-11-10 Florian Goertz

We investigate the bounds which can be placed on generic new-physics contributions to dijet production at the LHC using the framework of the Standard Model Effective Field Theory, deriving the first consistently-treated EFT bounds from…

高能物理 - 唯象学 · 物理学 2018-02-14 Stefan Alte , Matthias König , William Shepherd

The inert doublet model, a minimal extension of the Standard Model by a second Higgs doublet, is one of the simplest and most attractive scenarios that can explain the dark matter. In this paper, we demonstrate the existence of a new viable…

高能物理 - 唯象学 · 物理学 2011-04-20 Laura Lopez-Honorez , Carlos E. Yaguna

We combine and extend the analyses of effective scalar, vector, Majorana and Dirac fermion Higgs portal models of dark matter (DM), in which DM couples to the Standard Model (SM) Higgs boson via an operator of the form…

高能物理 - 唯象学 · 物理学 2016-06-15 Ankit Beniwal , Filip Rajec , Christopher Savage , Pat Scott , Christoph Weniger , Martin White , Anthony G. Williams

We apply the Effective Field Theory of Large Scale Structure (EFTofLSS) to non-standard models of dark matter with suppressed small-scale structure imprinted by early-time physics, here exemplified by interacting dark matter (IDM) coupled…

Due to its highly suppressed cross section (fermionic) dark matter interacting with the Standard Model via pseudoscalar mediators is expected to be essentially unobservable in direct detection experiments. We consider both a simplified…

高能物理 - 唯象学 · 物理学 2018-03-29 Giorgio Arcadi , Manfred Lindner , Farinaldo S. Queiroz , Werner Rodejohann , Stefan Vogl

Simplified models of light new physics provide a convenient benchmark for experimental searches for new physics signatures, including dark matter (DM). However, additional detection modes can arise in less simplified and more realistic…

高能物理 - 唯象学 · 物理学 2024-08-20 Krzysztof Jodłowski , Leszek Roszkowski , Sebastian Trojanowski

TeV-scale dark matter is well motivated by notions of naturalness as the new physics threshold is expected to emerge in the TeV regime. We extend the Standard Model by adding an arbitrary SU(2) dark matter multiplet in non-chiral…

高能物理 - 唯象学 · 物理学 2022-11-23 Ramtin Amintaheri

In this paper, we systematically investigate the general spin-one dark matter-nucleus interactions within the framework of effective field theories (EFT). We consider both the nonrelativistic (NR) and the relativistic EFT descriptions of…

高能物理 - 唯象学 · 物理学 2026-02-12 Jin-Han Liang , Yi Liao , Xiao-Dong Ma , Hao-Lin Wang

The framework of standard model effective field theory (SMEFT) provides a relatively model-agnostic tool with which to parameterize the off-shell effects of potential heavy new physics. In the top quark sector, the ATLAS and CMS experiments…

高能物理 - 实验 · 物理学 2023-11-22 Kelci Mohrman

The recoil threshold of Direct Detection experiments limits the mass range of Dark Matter (DM) particles that can be detected, with most DD experiments being blind to sub-MeV DM particles. However, these light DM particles can be boosted to…

高能物理 - 唯象学 · 物理学 2023-01-17 Debjyoti Bardhan , Supritha Bhowmick , Diptimoy Ghosh , Atanu Guha , Divya Sachdeva

We study a classically scale-invariant model with an electroweak singlet scalar mediator together with a scalar dark matter multiplet of global $O(N)$ symmetry. Our most general conformally invariant scalar potential generates the…

高能物理 - 唯象学 · 物理学 2019-09-09 Dong-Won Jung , Jungil Lee , Soo-hyeon Nam

Using the existing simplified model framework, we build several dark matter models which have suppressed spin-independent scattering cross section. We show that the scattering cross section can vanish due to interference effects with models…

高能物理 - 唯象学 · 物理学 2017-05-30 Arghya Choudhury , Kamila Kowalska , Leszek Roszkowski , Enrico Maria Sessolo , Andrew J. Williams

A non-relativistic effective field theory (NREFT) offers a bottom-up framework to classify Dark Matter (DM)-nucleon interactions relevant for scattering at direct detection experiments by organizing the interactions in powers of the…

高能物理 - 唯象学 · 物理学 2019-11-21 Manuel Drees , Rahul Mehra

We have continued the development of Lagrangian, cosmological perturbation theory for the low-order correlators of the matter density field. We provide a new route to understanding how the effective field theory (EFT) of large-scale…

宇宙学与河外天体物理 · 物理学 2015-09-16 Zvonimir Vlah , Martin White , Alejandro Aviles

We use the framework of dark matter effective field theories to study the complementarity of bounds for a dark matter particle with mass in the MeV range. Taking properly into account the mixing between operators induced by the…

高能物理 - 唯象学 · 物理学 2017-10-25 Enrico Bertuzzo , Cristian J. Caniu Barros , Giovanni Grilli di Cortona

A simple extension of the Standard Model consists of a scalar field that can potentially constitute the dark matter (DM). Significant attention has been devoted to probing light $\mathcal{O}(\lesssim 10~\rm{eV})$ scalar DM, with a multitude…

高能物理 - 唯象学 · 物理学 2020-09-23 Graciela B. Gelmini , Volodymyr Takhistov , Edoardo Vitagliano

We introduce EFTCAMB/EFTCosmoMC as publicly available patches to the commonly used CAMB/CosmoMC codes. We briefly describe the structure of the codes, their applicability and main features. To illustrate the use of these patches, we obtain…

宇宙学与河外天体物理 · 物理学 2014-11-20 Marco Raveri , Bin Hu , Noemi Frusciante , Alessandra Silvestri

We take an Effective Field Theory (EFT) approach to unifying existing proposals for the origin of cosmic acceleration and its connection to cosmological observations. Building on earlier work where EFT methods were used with observations to…

宇宙学与河外天体物理 · 物理学 2013-09-24 Jolyon K. Bloomfield , Éanna É. Flanagan , Minjoon Park , Scott Watson

In this article, we propose different background models of extended theories of gravity, which are minimally coupled to the SM fields, to explain the possibility of genesis of dark matter without affecting the SM particle sector. We modify…

高能物理 - 唯象学 · 物理学 2016-09-14 Sayantan Choudhury , Manibrata Sen , Soumya Sadhukhan