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32 papers · 2 filters
On the use of a running coupling in the NLO calculation of forward hadron production
B. Ducloué, E. Iancu, T. Lappi +4
We address and solve a puzzle raised by a recent calculation [1] of the cross-section for particle production in proton-nucleus collisions to next-to-leading order: the numerical r…
Singlet scalar and 2HDM extensions of the Standard Model: CP-violation and constraints from and EDM
Venus Keus, Niko Koivunen, Kimmo Tuominen
We study popular scalar extensions of the Standard Model, namely the singlet extension, the 2-Higgs doublet model (2HDM) and its extension by a singlet scalar. We focus on the cont…
Dark Matter Signals at the LHC from a 3HDM
A. Cordero, J. Hernandez-Sanchez, V. Keus +4
We analyse new signals of Dark Matter (DM) at the Large Hadron Collider (LHC) in a 3-Higgs Doublet Model (3HDM) where only one doublet acquires a Vacuum Expectation Value (VEV), pr…
Exploring collider aspects of a neutrinophilic Higgs doublet model in multilepton channels
Katri Huitu, Timo J. Kärkkäinen, Subhadeep Mondal +1
We consider a neutrinophilic Higgs scenario where the Standard Model is extended by one additional Higgs doublet and three generations of singlet right-handed Majorana neutrinos. L…
Higgs-Inflaton Mixing and Vacuum Stability
Yohei Ema, Mindaugas Karciauskas, Oleg Lebedev +2
The quartic and trilinear Higgs field couplings to an additional real scalar are renormalizable, gauge and Lorentz invariant. Thus, on general grounds, one expects such couplings b…
The effects of triplet Higgs bosons in long baseline neutrino experiments
Katri Huitu, Timo J. Kärkkäinen, Jukka Maalampi +1
The triplet scalars , utilized in the so-called Type-II seesaw model to explain the lightness of neutrinos, would generate nonstandard interactions (NSI) fo…