26 citations · 110 across the 14 of their papers we have counts for
7 papers · 1 filter
Neutrino Mass, Vacuum Stability and Higgs Inflation with Vector-Like Quarks and a Single Right-Handed Neutrino
Canan Karahan
We investigate a Standard Model extension containing degenerate down-type isosinglet vector-like quarks (VLQs) with masses and Yukawa couplings $y_{\mathcal D}…
Type-3/2 Seesaw Mechanism
Durmus Demir, Canan Karahan, Ozan Sargın
Type-I seesaw provides a natural explanation for the tiny neutrino masses. The right-handed neutrino masses it requires are, however, too large to keep the Higgs boson mass at its…
Affine gravitational scenario for dark matter decay
Hemza Azri, Adil Jueid, Canan Karahan +1
Since the current evidence of its existence is revealed only through its gravitational influence, the way dark matter couples to gravity must be then of primary importance. Here, u…
Electroweak Stability and Discovery Luminosities for New Physics
Kerem Cankocak, Durmus Demir, Canan Karahan +1
What is the luminosity needed for discovering new physics if the electroweak scale is to remain stable? In this work we study this question, with the example of a real singlet scal…
Hidden Spin-3/2 Field in the Standard Model
Durmuş Demir, Canan Karahan, Beste Korutlu +1
Here we show that a massive spin-3/2 field can hide in the SM spectrum in a way revealing itself only virtually. We study collider signatures and loop effects of this field, and de…
Higgsed Stueckelberg Vector and Higgs Quadratic Divergence
Durmus Ali Demir, Canan Nurhan Karahan, Beste Korutlu
Here we show that, a hidden vector field whose gauge invariance is ensured by a Stueckelberg scalar and whose mass is spontaneously generated by the Standard Model Higgs field cont…
Effects of a Real Singlet Scalar on Veltman Condition
Canan Nurhan Karahan, Beste Korutlu
We revisit the fine-tuning problem in the Standard Model (SM) and show the modification in Veltman condition by virtue of a minimally-extended particle spectrum with one real SM ga…