378 citations
- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT14 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Indian Institute of Science BangaloreIN8 papers
- Tata Institute of Fundamental ResearchIN6 papers
- Harish-Chandra Research InstituteIN5 papers
- University of California, RiversideUS5 papers
- Tsinghua UniversityCN4 papers
- Udaipur Solar ObservatoryIN4 papers
- Universitat de ValènciaES4 papers
- Indian Institute of Science Education and Research KolkataIN3 papers
- Institut d'Astrophysique de ParisFR3 papers
- Instituto de Física CorpuscularES3 papers
8 papers · 1 filter
Constraints on background torsion from birefringence of CMB polarization
Moumita Das, Subhendra Mohanty, A. R. Prasanna
We show that a non-minimal coupling of electromagnetism with background torsion can produce birefringence of the electromagnetic waves. This birefringence gives rise to a B-mode po…
Large U_{e3} and Tri-bimaximal Mixing
Srubabati Goswami, Serguey Petcov, Shamayita Ray +1
We investigate in a model-independent way to what extent one can perturb tri-bimaximal mixing in order to generate a sizable value of |U_{e3}|, while at the same time keeping solar…
Dipolar Dark Matter
Eduard Masso, Subhendra Mohanty, Soumya Rao
If dark matter (DM) has non-zero direct or transition, electric or magnetic dipole moment then it can scatter nucleons electromagnetically in direct detection experiments. Using th…
Visible and Dark Matter Genesis and Cosmic Positron/Electron Excesses
Pei-Hong Gu, Utpal Sarkar, Xinmin Zhang
Dark and baryonic matter contribute comparable energy density to the present Universe. The dark matter may also be responsible for the cosmic positron/electron excesses. We connect…
Double Type-II Seesaw, Baryon Asymmetry and Dark Matter for Cosmic e^\pm Excesses
Pei-Hong Gu, Hong-Jian He, Utpal Sarkar +1
We construct a new realization of type-II seesaw for neutrino masses and baryon asymmetry by extending the standard model with one light and two heavy singlet scalars besides one H…
Evolution of helicity in NOAA 10923 over three consecutive solar rotations
Sanjiv Kumar Tiwari, Jayant Joshi, Sanjay Gosain +1
We have studied the evolution of magnetic helicity and chirality in an active region over three consecutive solar rotations. The region when it first appeared was named NOAA10923 a…