4 papers
Irreducible Gravitational Wave Background as a Particle Detector
Anish Ghoshal, Angus Spalding, Graham White
We show that spectral features of primordial gravitational-wave backgrounds (GWB) can directly reconstruct \textit{Lagrangian} parameters of beyond-the-Standard-Model (BSM) particl…
Cosmic Strings Gravitational Wave Probe of Leptogenesis: Thermal, Non-thermal, Near-resonant and Flavourful
Anish Ghoshal, Angus Spalding, Graham White
Breaking a global or local symmetry at high scales simultaneously generates Majorana masses for heavy right-handed neutrinos and produces a network of cosmic strin…
Gravitational Wave Spectral Shapes as a probe of Long Lived Right-handed Neutrinos, Leptogenesis and Dark Matter: Global versus Local B-L Cosmic Strings
Satyabrata Datta, Anish Ghoshal, Angus Spalding +1
The scale of the seesaw mechanism is typically much larger than the electroweak scale. This hierarchy can be naturally explained by symmetry, which after spontaneous s…
Complementarity between Cosmic String Gravitational Waves and long-lived particle searches in a laboratory
Satyabrata Datta, Ambar Ghosal, Anish Ghoshal +1
Cosmic strings are powerful witnesses to cosmic events including any period of early matter domination. If such a period of matter domination was catalysed by metastable, long-live…