Articles written in Pramana – Journal of Physics
Volume 63 Issue 6 December 2004 pp 1391-1405
Srubabati Goswami Raghavan Rangarajan K Agashe A Bandyopadhyay K Bhattacharya B Brahmachari C Burgess E J Chun D Choudhury P K Das A Dighe R Godbole S Goswami N Gupta M Kaplinghat D Indumathi J Forshaw Y Y Keum B Layek D Majumdar N Mahajan P Mehta R N Mohapatra N Mondai S More Y Nir S Pakvasa M K Parida M Ravikumar G Rajasekaran P Ramadevi R Rangarajan S D Rindani D P Roy P Roy N Sahu A Samanta Y Shadmi A M Srivastava S Uma Sankar R Vaidya U Yajnik
This is the report of neutrino and astroparticle physics working group at WHEPP-8. We present the discussions carried out during the workshop on selected topics in the above fields and also indicate progress made subsequently. The neutrino physics subgroup studied the possibilities of constraining neutrino masses, mixing and CPT violation in lepton sector from future experiments. Neutrino mass models in the context of Abelian horizontal symmetries, warped extra dimensions and in the presence of triplet Higgs were studied. Effect of threshold corrections on radiative magnification of mixing angles was investigated. The astroparticle physics subgroup focused on how various particle physics inputs affect the CMBR fluctuation spectrum, and on brane cosmology. This report also contains an introduction on how to use the publicly available code CMBFAST to calculate the CMBR fluctuations.
Volume 76 Issue 5 May 2011 pp 693-698
Raghavan Rangarajan Ajit Srivastava A Bandyopadhyay A Basak M Bastero-Gil A Berera J Bhatt K Bhattacharya S Chakraborty M Das S Das K Dutta D Ghosh S Goswami U Gupta P Jain Y-Y Keum E Masso D Majumdar A P Mishra S Mohanty R Mohapatra A Nautiyal T Prokopec S Rao D P Roy N Sahu A Sarkar P Saumia A Sen A Shivaji
This is the report of the cosmology and astroparticle physics working group at WHEPPXI. We present the discussions carried out during the workshop on selected topics in the above ﬁelds. The problems discussed concerned axions, infrared divergences in inﬂationary theories, supersonic bubbles in a ﬁrst-order electroweak phase transition, dark matter, MOND, interacting dark energy, composite Higgs models and statistical anisotropy of the Universe.
Volume 94, 2020
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