92 citations · 408 across the 20 of their papers we have counts for
20 papers
Baryogenesis from a Majorana Fermion Coupled to Quarks
Shrihari Gopalakrishna, Rakesh Tibrewala
In the theory with a Majorana fermion () coupled to quark-like fermions () via a dimension-six four-fermion vector-vector interaction, we have computed in an earlier work the…
Generalized Landau Yang Theorem
T. R. Govindarajan, Rakesh Tibrewala
Landau Yang theorem is well known for the past several decades. It prohibits the decay of a massive spin 1 particle to two photons. This emerges simply from the representation theo…
Baryon Asymmetry from the Decay and Scattering of a Majorana Fermion Pair Coupled to Quarks
Shrihari Gopalakrishna, Rakesh Tibrewala
We compute the baryon asymmetry in decay and scattering processes involving the electromagnetically charge-neutral fermion that carries nonzero baryon number and interacts with…
Effective Theory for Baryogenesis with a Majorana Fermion Pair Coupled to Quarks
Shrihari Gopalakrishna, Rakesh Tibrewala
With a goal toward explaining the observed baryon asymmetry of the Universe, we extend the standard model (SM) by adding a vector-vector dimension-six effective operator coupling a…
Fermionic edge states and new physics
T. R. Govindarajan, Rakesh Tibrewala
We investigate the properties of the Dirac operator on manifolds with boundaries in presence of the Atiyah-Patodi-Singer boundary condition. An exact counting of the number of edge…
Midisuperspace quantization: possibilities for fractional and emergent spacetime dimensions
Rakesh Tibrewala
Recently, motivated by certain loop quantum gravity inspired corrections, it was shown that for spherically symmetric midisuperspace models infinitely many second derivative theori…