International Conference on High Energy Particle & Astroparticle Physics (ICHEPAP2023)

Session

Parallel Session 1: Non Collider

11 Dec 2023, 16:30

Lecture Hall 2

Description

Chair: D. Nieto

Contribution list Timetable

11. Particle Dark Matter

Satyanarayan Mukhopadhyay (IACS, Kolkata)

11/12/2023, 16:30

Invited Talk

Chair: D. Nieto

12. Dark Matter in Compact Stars

Nirmal Raj (Indian Institute of Science)

11/12/2023, 17:00

Invited Talk

Chair: D. Kerszberg

13. CPT VIOLATION AND SAKHAROV CONDITIONS.

Biswajoy Brahmachari (Vidyasagar Metropolitan College)

11/12/2023, 17:30

Contributory Talk

Chair: D. Nieto
Abstract: In this talk, we describe the impact of CPT violation on Sakharov conditions. Essentially the out-of-equilibrium condition will be modified in the presence of CPT violation since a tiny mass difference between particle and anti-particle will be naturally allowed when CPT violation is present.

14. Seesaw determination of the dark matter relic density

Aritra Gupta (IFIC, Valencia, Spain)

11/12/2023, 17:50

Contributory Talk

Chair: D. Nieto
ABSTRACT: We show that in the usual type-I seesaw framework, augmented solely by a neutrino portal interaction, the dark matter relic density can be created through freeze-in, in a manner fully determined by the seesaw interactions and the DM particle mass. This simple freeze-in scenario, where dark matter is not in a seesaw state, proceeds through slow, seesaw-induced decays...