185 citations · 2.1k across the 59 of their papers we have counts for
59 papers
Bell violation in scattering in photon, gluon and graviton EFTs
Diptimoy Ghosh, Rajat Sharma
In this paper, we explore Bell inequality violation for scattering in Effective Field Theories (EFTs) of photons, gluons, and gravitons. Using the CGLMP Bell parame…
Mixed Graviton and Scalar Bispectra in the EFT of Inflation: Soft Limits and Boostless Bootstrap
Diptimoy Ghosh, Kushan Panchal, Farman Ullah
Boostless Bootstrap techniques have been applied by many in the literature to compute pure scalar and graviton correlators. In this paper, we focus primarily on mixed graviton and…
Amplitude's positivity vs. subluminality: Causality and Unitarity Constraints on dimension 6 & 8 Gluonic operators in the SMEFT
Diptimoy Ghosh, Rajat Sharma, Farman Ullah
We derive the causality and unitarity constraints on dimension 6 and dimension 8 Gluon field strength operators in the Standard Model Effective Field Theory (SMEFT). In the first p…
Gravitation Wave signal from Asteroid mass Primordial Black Hole Dark Matter
Diptimoy Ghosh, Arvind Kumar Mishra
Primordial Black Holes (PBHs) in the mass range g are currently unconstrained, and can constitute the full Dark Matter (DM) density of the universe. Motivate…
Bounds on boosted dark matter from direct detection: The role of energy-dependent cross sections
Debjyoti Bardhan, Supritha Bhowmick, Diptimoy Ghosh +2
The recoil threshold of Direct Detection experiments limits the mass range of Dark Matter (DM) particles that can be detected, with most DD experiments being blind to sub-MeV DM pa…
Probing the initial state of inflation: analytical structure of cosmological correlators
Diptimoy Ghosh, Amartya Harsh Singh, Farman Ullah
We study the analytic structure of in-in correlation functions in a deSitter background. The aim of this study is to probe the initial conditions for inflation through the features…