Articles written in Pramana – Journal of Physics
Volume 60 Issue 2 February 2003 pp 383-394
Working group report: Collider and B physics
Amitava Datta K Sridhar K Abe K Agashe R Aleksan B C Allanach S Chakraborti D Choudhury Asesh Krishna Datta Anindya Datta D Ghosh R M Godbole M Guchait K Huitu P Konar A Kundu S Moretti B Mukhopadhyaya S Moretti D P Roy
The activities of the working group including some of the seminars are summarized. The written reports received are included.
Volume 60 Issue 2 February 2003 pp 395-399
Working group report: Beyond the standard model
B Mukhopadhyaya S Raychudhuri K Agashe B Allanach D Bailin B Brahmachari U Chattopadhyay D Choudhury P Das Amitava Datta Anindya Datta A Djouadi A Giri K Huitu A Kundu U Mahanta S Moretti B Mukhopadhyaya J C Pati A K Ray A Raychaudhuri S Raychaudhuri P Roy N Singh R Vaidya
Volume 60 Issue 2 February 2003 pp 401-404
Working group report: Quantum chromodynamics (QCD) and hadronic structure
Rahul Basu V Ravindran D Choudhury R Gavai S Gupta J P Singh Swapan K Majhi B P Mahapatra Prakash Mathews Rajarshi Ray D Chakrabarti Pijush Bhattacharjee
We discuss potential problems in hadronic physics. Recent developments are reviewed and possible future studies in some interesting areas which are underway are highlighted.
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 84 Issue 6 June 2015 pp 987-997
Site-specific doping, tunable dielectric properties and intrinsic paramagnetism in Mn-doped SrTiO3
Mn doping in SrTiO3 leads to the emergence of qualitatively distinct and novel physical properties. We show that Mn ions can be controllably doped at either of the perovskite 𝐴(Sr) or 𝐵(Ti) site as well as at both sites simultaneously and the resultant physical properties depend intimately on the particular dopant site. We critically review the recent literature on various Mn-doped SrTiO3 systems, which includes reports of dielectric glass, spin-glass and ferromagnetism and by combining experiments with first-principles calculations, we demonstrate that depending on the particular dopant site for Mn ions, the dielectric properties can be widely tuned from a quantum paraelectric to a dielectric glass. However, the intrinsic magnetism in all these cases remains essentially paramagnetic for phase-pure systems.
Volume 97, 2023
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