5 papers
Distinguishing Higgs portal and neutralino dark matter via vector boson fusion
Amit Chakraborty, Tathagata Ghosh, Rafiqul Rahaman
Understanding the nature of dark matter (DM) is a fundamental challenge in particle physics. In this paper, we investigate the potential of vector boson fusion (VBF) processes at t…
Improved Binary Black Hole Search Discriminator from the Singular Value Decomposition of Non-Gaussian Noise Transients
Tathagata Ghosh, Sukanta Bose, Sanjeev Dhurandhar +1
The sensitivity of current gravitational wave (GW) detectors to transient GW signals is severely affected by a variety of non-Gaussian and non-stationary noise transients, such as…
Joint Inference of Population, Cosmology, and Neutron Star Equation of State from Gravitational Waves of Dark Binary Neutron Stars
Tathagata Ghosh, Bhaskar Biswas, Sukanta Bose +1
Gravitational waves (GWs) from binary neutron stars (BNSs) are expected to be accompanied by electromagnetic (EM) emissions, which help identify the host galaxy. Since GWs directly…
Constraining the Hubble Constant using Cross-Correlation of Gravitational Wave Events with Flux-Limited Galaxy Catalog
Tathagata Ghosh, Surhud More
Gravitational waves (GWs) from the compact binary coalescence provide direct measurement of the luminosity distance to the event. However, unlike binary neutron stars, redshift inf…
Bayesian framework to infer the Hubble constant from the cross-correlation of individual gravitational wave events with galaxies
Tathagata Ghosh, Surhud More, Sayantani Bera +1
Gravitational waves (GWs) from the inspiral of binary compact objects offer a one-step measurement of the luminosity distance to the event, which is essential for the measurement o…