Abstract Details
| Name: PRASANTA KUMAR DAS Affiliation: Associate Professor Conference ID: ASI2018_1701 Title : Fermionic dark matter and supernova SN1987A cooling Authors and Co-Authors : ATANU GUHA and SELVAGANAPATHY J DEPARTMENT OF PHYSICS, BITS PILANI, K K BIRLA GOA CAMPUS, NH-17B, ZUARINAGAR, GOA-403726 Abstract Type : Contributed Talk Abstract Category : General Relativity and Cosmology Abstract : Light dark matter(1 − 30 MeV) particles which can be pair produced in electron-positron annihilation e − e + → χ χ inside the supernova SN1987A core take away the energy released in the supernova SN1987A explosion. Using the Raffelt’s criteria on the energy loss rate and using the optical depth criteria on the free streaming of the dark matter fermion, we find that the lower bound on the scale Λ of the dark matter effective theory to be Λ ∼ 1.0E+08 TeV for m χ = 30 MeV. We extend our study in q-deformed statistics scenario and study the impact of it on the scale Λ. Journal Ref. Das etal, Phys.Rev.D 95:015001, 2017. |