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  • Cosmology in the presence of multiple light moduli 
    Acharya, Bobby S.; Dhuria, Mansi; GHOSH, DIPTIMOY; Maharana, Anshuman; Muia, Francesco (IOP Publishing, 2019-11)
    The generic expectation in string/supergravity models is that there are multiple moduli fields with masses of the order of the supersymmetry breaking scale. We study the cosmology that arises as a result of vacuum misalignment ...
  • Exploring millicharged dark matter components from the shadows 
    BHANDARI, LALIT S.; THALAPILLIL, ARUN M. (IOP Publishing, 2022-03)
    Dark matter sectors with hidden interactions have been of much interest in recent years. These frameworks include models of millicharged particles as well as dark sector bound states, whose constituents have electromagnetic ...
  • Blazar boosted dark matter direct detection constraints on aex: role of energy dependent cross section 
    BHOWMICK, SUPRITHA; GHOSH, DIPTIMOY; Sachdeva, Divya (IOP Publishing, 2023-07)
    Elastic collisions with relativistic electrons from the blazar's jet can accelerate dark matter (DM) particles in the DM spike surrounding the supermassive black hole at its center. This can allow one to set stringent ...
  • Primordial black holes dark matter and secondary gravitational waves from warm Higgs-G inflation 
    Arya, Richa; Jain, Rajeev Kumar; MISHRA, ARVIND KUMAR (IOP Publishing, 2024-02)
    We explore the role of dissipative effects during warm inflation leading to the small-scale enhancement of the power spectrum of curvature perturbations. In this paper, we specifically focus on non-canonical warm inflationary ...

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