scholarly journals Dark Matter characterization at the LHC in the Effective Field Theory approach

2017 ◽  
Vol 2017 (4) ◽  
Author(s):  
Alexander Belyaev ◽  
Luca Panizzi ◽  
Alexander Pukhov ◽  
Marc Thomas
Keyword(s):  
Field Theory ◽  
Dark Matter ◽  
Effective Field Theory ◽  
Effective Field ◽  
Theory Approach

scholarly journals Interplay of the LHC and non-LHC dark matter searches in the effective field theory approach

2019 ◽  
Vol 99 (1) ◽  
Author(s):  
Alexander Belyaev ◽  
Enrico Bertuzzo ◽  
Cristian Caniu Barros ◽  
Oscar Eboli ◽  
Giovanni Grilli di Cortona ◽  
...  
Keyword(s):  
Field Theory ◽  
Dark Matter ◽  
Effective Field Theory ◽  
Effective Field ◽  
Theory Approach

scholarly journals The fermionic dark matter Higgs portal: an effective field theory approach

2014 ◽  
Vol 2014 (8) ◽  
Author(s):  
Michael A. Fedderke ◽  
Jing-Yuan Chen ◽  
Edward W. Kolb ◽  
Lian-Tao Wang
Keyword(s):  
Field Theory ◽  
Dark Matter ◽  
Effective Field Theory ◽  
Effective Field ◽  
Theory Approach ◽  
Higgs Portal

Probing dark matter via effective field theory approach

2020 ◽  
Vol 17 (02) ◽  
pp. 2050028
Author(s):  
Ayşe Elçi̇boğa Kuday ◽  
Ferhat Özok ◽  
Erdinç Ulaş Saka
Keyword(s):  
Field Theory ◽  
Dark Matter ◽  
Cross Sections ◽  
Effective Field Theory ◽  
High Energy ◽  
New Physics ◽  
Theory Model ◽  
Effective Field ◽  
Tree Level ◽  
Theory Approach

We analyze dark matter in most general form of effective field theory approach. To examine the interactions between the weakly interacting massive particles (WIMPs) and the Standard Model (SM) particles, we use the six-dimensional EFT mediated by new physics scale [Formula: see text] at tree level. After implementing a new effective field theory model in FeynRules [FeynRules 2.0 A complete toolbox for tree-level phenomenology, Comput. Phys. Comm. 185(8) (2014) 2250–2300] We investigate the theory and constrain the theory by using relic density generated by MadDM [MadDM v.3.0: A Comprehensive tool for dark matter studies, Phys. Dark Univ. 24 (2019) 100249] tool of MadGraph5_aMC@NLO [The automated computation of tree-level and next-to-leading order differential cross-sections, and their matching to parton shower simulations, J. High Energy Phys. 79 (2014) 2014].

scholarly journals Spin effects in the effective field theory approach to Post-Minkowskian conservative dynamics

2021 ◽  
Vol 2021 (6) ◽  
Author(s):  
Zhengwen Liu ◽  
Rafael A. Porto ◽  
Zixin Yang
Keyword(s):  
Field Theory ◽  
Effective Field Theory ◽  
Scattering Problem ◽  
Finite Size ◽  
Effective Field ◽  
Compact Objects ◽  
Scattering Data ◽  
Theory Approach ◽  
Spin Effects ◽  
Radial Action

Abstract Building upon the worldline effective field theory (EFT) formalism for spinning bodies developed for the Post-Newtonian regime, we generalize the EFT approach to Post-Minkowskian (PM) dynamics to include rotational degrees of freedom in a manifestly covariant framework. We introduce a systematic procedure to compute the total change in momentum and spin in the gravitational scattering of compact objects. For the special case of spins aligned with the orbital angular momentum, we show how to construct the radial action for elliptic-like orbits using the Boundary-to-Bound correspondence. As a paradigmatic example, we solve the scattering problem to next-to-leading PM order with linear and bilinear spin effects and arbitrary initial conditions, incorporating for the first time finite-size corrections. We obtain the aligned-spin radial action from the resulting scattering data, and derive the periastron advance and binding energy for circular orbits. We also provide the (square of the) center-of-mass momentum to $$ \mathcal{O}\left({G}^2\right) $$ O G 2 , which may be used to reconstruct a Hamiltonian. Our results are in perfect agreement with the existent literature, while at the same time extend the knowledge of the PM dynamics of compact binaries at quadratic order in spins.

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