D P Roy
Articles written in Pramana – Journal of Physics
Volume 45 Issue S1 October 1995 pp 293-312
I start with a brief introduction to the elementary particles and their interactions, Higgs mechanism and supersymmetry. The major physics objectives of the Tevatron and LHC colliders are identified. The status and prospects of the top quark, charged Higgs boson and superparticle searches are discussed in detail, while those of the neutral Higgs boson(s) are covered in a parallel talk by R.J.N. Phillips at this workshop.
Volume 51 Issue 1-2 July 1998 pp 7-26
I start with a brief introduction to Higgs mechanism and supersymmetry. Then I discuss the theoretical expectations, current limits and search strategies for Higgs boson(s) at LHC — first in the SM and then in the MSSM. Finally I discuss the signatures and search strategies for the superparticles.
Volume 51 Issue 1-2 July 1998 pp 287-295
Volume 51 Issue 1-2 July 1998 pp 305-311
Debajyoti Choudhury Saurabh D Rindani B Ananthanarayan K R S Balaji Debajyoti Choudhury Manuel Drees Shashikant Dugad Gautam Dutta Sukanta Dutta Naveen Gaur Ambar Ghosal Walter Grimus Ernest Ma Shubhendra Mohanty P N Pandita M K Parida Subhendu Rakshit Saurabh D Rindani D P Roy Probir Roy Sarira Sahu N N Singh Sudhir K Vempati Francesco Vissani
This report summarises the activities of the working group on ‘Physics beyond the Standard Model’. The results of investigations in incorporating
Volume 60 Issue 2 February 2003 pp 383-394
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 405-409
Raj Gandhi Kamales Kar S Uma Sankar Abhijit Bandyopadhyay Rahul Basu Pijushpani Bhattacharjee Biswajoy Brahmachari Debrupa Chakraborti M Chaudhury J Chaudhury Sandhya Choubey E J Chun Atri Desmukhya Anindya Datta Gautam Dutta Sukanta Dutta Anjan Giri Sourendu Gupta Srubabati Goswami Namit Mahajan H S Mani A Mukherjee Biswarup Mukhopadhyaya S N Nayak M Randhawa Subhendu Rakshit Asim K Ray Amitava Raychaudhuri D P Roy Probir Roy Suryadeep Roy Shiv Sethi G Sigl Arunansu Sil N Nimai Singh Mark Vagins Urjit Yagnik
This is the report of neutrino and astroparticle physics working group at WHEPP-7. Discussions and work on CP violation in long baseline neutrino experiments, ultra high energy neutrinos, supernova neutrinos and water Cerenkov detectors are discussed.
Volume 62 Issue 2 February 2004 pp 147-148
Volume 62 Issue 3 March 2004 pp 536a-536b
Volume 63 Issue 6 December 2004 pp 1331-1353
Naba K Mondal Saurabh D Rindani Kaustubh Agashe Pankaj Agrawal B Ananthanarayan Ketevi Assamagan Alfred Bartl Subhendu Chakrabarti Utpal Chattopadhyay Debajyoti Choudhury Eung-Jin Chun Prasanta K Das Siba P Das Amitava Datta Sukanta Dutta Jeff Forshaw Thomas Gajdosik Dilip K Ghosh Rohini M Godbole Monoranjan Guchait Partha Konar Sabine Kraml Manas Maity Kajari Mazumdar Naba K Mondai Biswarup Mukhopadhyaya Meenakshi Narain Santosh K Rai Sreerup Raychaudhuri Saurabh D Rindani D P Roy Seema Sharma Ritesh K Singh Rishikesh Vaidya
This is a summary of the projects undertaken by the working group I on high energy and collider 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 72 Issue 1 January 2009 pp 229-237
We report on a plan to establish a `Dictionary of LHC Signatures', an initiative that started at the WHEPP-X workshop in Chennai, January 2008. This study aims at the strategy of distinguishing 3 classes of dark matter motivated scenarios such as 𝑅-parity conserved supersymmetry, little Higgs models with 𝑇 -parity conservation and universal extra dimensions with KK-parity for generic cases of their realization in a wide range of the model space. Discriminating signatures are tabulated and will need a further detailed analysis.
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 76 Issue 5 May 2011 pp 741-756
I discuss LHC physics in the historical perspective of the progress in particle physics. After a recap of the Standard Model (SM) of particle physics, I discuss the high energy colliders leading up to LHC and their role in the discovery of these SM particles. Then I discuss the two main physics issues of LHC, i.e. Higgs mechanism and supersymmetry. I brieﬂy touch upon Higgs and SUSY searches at LHC along with their cosmological implications.
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