Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Waltari, Harri"'
We study CP violation (CPV) in the sneutrino sector within the B-L extension of the Minimal Supersymmetric Standard Model (BLSSM), wherein an inverse seesaw mechanism has been implemented. CPV arises from the new superpotential couplings in the (s)ne
Externí odkaz:
http://arxiv.org/abs/2407.09957
Autor:
Enberg, Rikard, Hiçyılmaz, Yaşar, Moretti, Stefano, Heros, Carlos Pérez de los, Waltari, Harri
We explain the ATOMKI anomaly with a very light $Z'$ state that features non-anomalous and non-flavour-universal vector and axial-vector couplings to all leptons. This $Z'$ comes from a theoretical framework with a spontaneously broken $U(1)'$ symmet
Externí odkaz:
http://arxiv.org/abs/2404.04717
The seesaw scale is a priori unknown. If the seesaw scale is low, one may directly look for the new particles predicted by seesaw models. If the seesaw scale is high, such an approach is unfeasible. We show that in some supersymmetric seesaw models t
Externí odkaz:
http://arxiv.org/abs/2307.05550
We present a novel approach to the study of di-Higgs production via gluon-gluon fusion at the LHC. The relevant Feynman diagrams involving two Standard Model-like Higgs bosons $hh$ are computed within a simplified model approach that enables one to i
Externí odkaz:
http://arxiv.org/abs/2302.03401
Autor:
Ali, Murad, Khalil, Shaaban, Moretti, Stefano, Munir, Shoaib, Nevzorov, Roman, Nikitenko, Alexandre, Waltari, Harri
Publikováno v:
JHEP 2303 (2023) 117
We perform a model-independent search for leptoquarks (LQs) at the Large Hadron Collider through their pair-production and subsequent decay into $t\bar t \tau\tau$ intermediate states. We show that, assuming full luminosity of the Run 2, a fully hadr
Externí odkaz:
http://arxiv.org/abs/2302.02071
We study the possibility of measuring neutrino Yukawa couplings in the Next-to-Minimal Supersymmetric Standard Model with right-handed neutrinos (NMSSMr) when the lightest Supersymmetric partner (a right-handed sneutrino) is the Dark Matter (DM) cand
Externí odkaz:
http://arxiv.org/abs/2211.12536
Publikováno v:
JHEP 01 (2022) 034
We study the possibility of measuring neutrino Yukawa couplings in the Next-to-Minimal Supersymmetric Standard Model with right-handed neutrinos (NMSSMr) when the lightest right-handed sneutrino is the Dark Matter (DM) candidate, by exploiting a `dij
Externí odkaz:
http://arxiv.org/abs/2109.06802
Publikováno v:
Eur.Phys.J.C 82, 1058 (2022)
Within the Exceptional Supersymmetric Standard Model (E6SSM), we investigate striking signatures at the Large Hadron Collider (LHC) for a long-lived charged inert higgsino, which is degenerate with the inert neutralino at tree level and a mass splitt
Externí odkaz:
http://arxiv.org/abs/2107.10780
Publikováno v:
Phys. Rev. D 104, 035008 (2021)
The mono-photon signature emerging in an E6 Supersymmetric Standard Model (E6SSM) from inert higgsino Dark Matter (DM) is analyzed at future $e^+e^-$ colliders. As the inert neutral and charged higgsinos are nearly degenerate, the inert chargino is a
Externí odkaz:
http://arxiv.org/abs/2104.07347
Publikováno v:
JHEP 06 (2021) 027
We study displaced signatures of sneutrino pairs potentially emerging at the Large Hadron Collider (LHC) in a Next-to-Minimal Supersymmetric Standard Model supplemented with right-handed neutrinos triggering a Type-I seesaw mechanism. We show how suc
Externí odkaz:
http://arxiv.org/abs/2012.14034