Articles written in Pramana – Journal of Physics
Volume 51 Issue 1-2 July 1998 pp 1-4
Volume 62 Issue 3 March 2004 pp 643-646
Bi-large neutrino mixings by radiative magnification
R N Mohapatra M K Parida G Rajasekaran
Starting with the unification hypothesis of mixings of quarks and leptons and small quark-like mixings at the see-saw scale, we find that two large mixings for νe —ν
Volume 63 Issue 6 December 2004 pp 1391-1405
Working group report: Neutrino and astroparticle physics
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 72 Issue 1 January 2009 pp 269-275
Working group report: Neutrino physics
Sandhya Choubey D Indumathi S Agarwalla A Bandyopadhyay G Bhattacharyya E J Chun B Dasgupta A Dighe P Ghoshal A K Giri S Goswami M Hirsch T Kajita M Kaplinghat H S Mani R Mohanta M V N Murthy S Pakvasa M K Parida G Rajasekaran S Ray W Rodejohann P Roy S Uma Sankar T Schwetz N Sinha
This is the report of the neutrino physics working group at WHEPP-X. We summarize the problems selected and discussed at the workshop and the papers which have resulted subsequently.
Volume 82 Issue 3 March 2014 pp L609-L615 Rapid Communication
Anomalous Kolar events revisited: Dark matter?
The possibility of the unexplained Kolar events, recorded in the 1970s and 1980s, being due to the decays of dark matter particles of mass in the range of 5–10 GeV, is pointed out.
Volume 86 Issue 2 February 2016 pp 199-206 Special
Keynote address: High energy physics in 2014 and its future
After a brief history, we focus on the present status of HEP and its possible future. Ideas to ensure a healthy growth of HEP in India are discussed. This involves a few major experimental projects in fundamental physics. None of these projects can succeed unless the crucial problem of manpower is solved. A few suggestions are offered towards this aim.
Volume 86 Issue 2 February 2016 pp 363-367 Special: Cosmology
Was dark matter detected in India 40 years ago?
This paper is based on a paper written by M V N Murthy and G Rajasekaran,
Volume 97, 2023
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