9 papers
Full Next-To Leading-Order Electroweak and QCD Corrections to the Relic Density in the CxSM
Pavao Brica, Karim Elyaouti, Pedro Gabriel +2
In this work, we present the calculation of the next-to-leading order (NLO) QCD and electroweak corrections to the thermally averaged cross section of Dark Matter (DM) annihilation…
Dark Matter in Multi-Singlet Extensions of the Standard Model
Maria Gonçalves, Margarete Mühlleitner, Rui Santos +1
We study the simplest extensions of the Standard Model (SM) that provide Dark Matter (DM) candidates, built with the addition of real singlets and new symmetries. I…
Phenomenology of a Kinetic Higgs Portal
Anisha, Lisa Biermann, Christoph Englert +1
We explore the phenomenological consequences of non-minimal hidden sector interactions on observable correlations in the Higgs sector, mediated through the -symmetric…
RelExt: A New Dark Matter Tool for the Exploration of Dark Matter Models
Rodrigo Capucha, Karim Elyaouti, Milada Margarete Mühlleitner +2
We present the C++ program RelExt for Standard Model (SM) extensions that feature a Dark Matter (DM) candidate. The tool allows to efficiently scan the parameter spaces of these mo…
Z and Higgs Factory Implications of Two Higgs Doublets with First-Order Phase Transitions
Anisha, Francisco Arco, Stefano Di Noi +2
We investigate the potential of future electron-positron colliders, such as FCC-ee and CEPC, to probe 2-Higgs-doublet models (2HDMs) that facilitate a strong first-order electrowea…
Higgs Pair Production in the 2HDM: Impact of Loop Corrections to the Trilinear Higgs Couplings and Interference Effects on Experimental Limits
S. Heinemeyer, M. Mühlleitner, K. Radchenko +1
The results obtained at the LHC for constraining the trilinear Higgs self-coupling of the detected Higgs boson at about 125 GeV, , via the Higgs pair production process h…