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May 14, 2015

Indirect reach of heavy MSSM Higgs bosons by precision measurements a…

In the Minimal Supersymmetric Standard Model (MSSM), the bottom Yukawa coupling of the Higgs boson can considerably deviate from its Standard Model p…
Sep 01, 2016

Gravitational waves and Higgs boson couplings for exploring first ord…

We calculate the spectrum of gravitational waves originated from strongly first order electroweak phase transition in the extended Higgs model with a…
Feb 25, 2011

Testing Higgs portal dark matter via $Z$ fusion at a linear collider

We investigate the possibility of detecting dark matter at TeV scale linear colliders in the scenario where the dark matter is a massive particle wea…
Nov 02, 2011

TeV-Scale Seesaw with Loop-Induced Dirac Mass Term and Dark Matter fr…

We show a TeV-scale seesaw model where Majorana neutrino masses, the dark matter mass, and stability of the dark matter can be all originated from th…
May 08, 2014

Neutrino Mass and Dark Matter from Gauged $U(1)_{B-L}$ Breaking

We propose a new model where the Dirac mass term for neutrinos, the Majorana mass term for right-handed neutrinos, and the other new fermion masses a…
May 19, 2017

Neutrino Mass, Dark Matter and Baryon Asymmetry without Lepton Number…

We propose a model to explain tiny masses of neutrinos with the lepton number conservation, where neither too heavy particles beyond the TeV-scale no…
Feb 17, 2011

Triviality and vacuum stability bounds in the three-loop neutrino mas…

We study theoretical constraints on the parameter space under the conditions from vacuum stability and triviality in the three-loop radiative seesaw …
Feb 27, 2015

Fingerprinting the extended Higgs sector using one-loop corrected Hig…

We calculate radiative corrections to a full set of coupling constants for the 125 GeV Higgs boson at the one-loop level in two Higgs doublet models …
Nov 26, 2012

Radiative corrections to the Higgs boson couplings in the triplet mod…

We calculate a full set of one-loop corrections to the Higgs boson coupling constants as well as the electroweak parameters. We compute the decay rat…
Mar 23, 2015

Phenomenological constraints on light mixed sneutrino dark matter s…

In supersymmetric models with Dirac neutrinos, the lightest sneutrino can be an excellent thermal dark matter candidate when the soft sneutrino trili…
May 31, 2010

Can WIMP Dark Matter overcome the Nightmare Scenario?

Even if new physics beyond the Standard Model (SM) indeed exists, the energy scale of new physics might be beyond the reach at the Large Hadron Colli…
May 29, 2015

Neutrino Mass and Dark Matter from Gauged B$-$L Breaking

We discuss a new radiative seesaw model with the gauged B$-$L symmetry which is spontaneously broken. We improve the previous model by using the anom…
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