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Full-Text Articles in Physical Sciences and Mathematics
Weak Isospin Violations In Charged And Neutral Higgs Couplings From Supersymmetric Loop Corrections, Tarek Ibrahim, Pran Nath
Weak Isospin Violations In Charged And Neutral Higgs Couplings From Supersymmetric Loop Corrections, Tarek Ibrahim, Pran Nath
Pran Nath
The supersymmetric QCD and the supersymmetric electroweak loop corrections to the violations of weak isospin to Yukawa couplings are investigated. Specifically it involves an analysis of the supersymmetric (SUSY) loop corrections to the Higgs couplings to the third generation quarks and leptons. Here we analyze the SUSY loop corrections to the charged Higgs couplings which are then compared with the supersymmetric loop corrections to the neutral Higgs couplings previously computed. It is found that the weak isospin violations can be quite significant, i.e., as much as 40–50% or more of the total loop correction to the Yukawa coupling. The effects …
Fermion Mass Generation In So(10) With A Unified Higgs Sector, K. S. Babu, Ilia Gogoladze, Pran Nath, Raza M. Syed
Fermion Mass Generation In So(10) With A Unified Higgs Sector, K. S. Babu, Ilia Gogoladze, Pran Nath, Raza M. Syed
Pran Nath
An analysis of generating fermion masses via cubic couplings in SO(10) grand unification with a unified Higgs sector is given. The new framework utilizes a single pair of vector-spinor representation 144+144̅ to break the gauge symmetry all the way to SU(3)C×U(1)em. Typically the matter-Higgs couplings in this framework are quartic and lead to naturally suppressed Yukawa couplings for the first two generations. Here we show that much larger third generation couplings naturally arise at the cubic level with additional matter in 10-plet and 45-plet representations of SO(10). Thus the physical third generation is a mixture of 16, 10, and 45-plet …