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43 papers · 1 filter
Constraints on metastable superheavy dark matter coupled to sterile neutrinos with the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Abdul Halim, P. Abreu +368
Dark matter particles could be superheavy, provided their lifetime is much longer than the age of the universe. Using the sensitivity of the Pierre Auger Observatory to ultra-high…
Probing new physics with charge asymmetries in 2 same-sign leptons plus jets final states at the LHC
Ernesto Arganda, Leandro Da Rold, Aurelio Juste +2
We study the impact of new physics models in the charge asymmetry defined for LHC final states consisting of two same-sign leptons (2SS, with ) plus jets ($N_\text{jets…
A composite Froggatt-Nielsen model of flavor
Leandro Da Rold, Federico Lamagna
A natural composite Higgs demands the presence of light resonances at the TeV scale, that in general are in conflict with bounds from flavor and CP violation. We propose a composit…
Interpretation of LHC excesses in ditop and ditau channels as a 400-GeV pseudoscalar resonance
Ernesto Arganda, Leandro Da Rold, Daniel A. Díaz +1
Since the discovery in 2012 of the Higgs boson at the LHC, as the last missing piece of the Standard Model of particle physics, any hint of new physics has been intensively searche…
Enhancement of the double Higgs production via leptoquarks at the LHC
Leandro Da Rold, Manuel Epele, Anibal Medina +2
Measurements of single Higgs production and its decays are in good agreement with the Standard Model. There is still room for large modifications in double Higgs production at LHC,…
A model for the Singlet-Triplet Leptoquarks
Leandro Da Rold, Federico Lamagna
The deviations of -meson decays measured in and can be explained by the presence of two scalar leptoquarks, a singlet and a triple…