Probir Roy

Probir Roy (born 4 October 1942) is an Indian particle physicist and a former professor at Tata Institute of Fundamental Research.

[1][note 1] Born on 4 October 1942 into a Bengali Kayastha family at Calcutta in the Bengal state of British India to Kiran Lal Roy-Sujata Sikdar couple, Probir Roy graduated in physics with honours from Presidency College under Calcutta University in 1962 before moving to Cambridge University to obtain an MA (Cantab) from King's College, Cambridge in 1965.

[2] Subsequently, he joined Stanford University for his doctoral studies and secured a PhD, mentored by S. M. Berman, for his thesis in Kaon physics, in 1968.

[9] Later, he worked on scale invariance and deep inelastic scattering while at CERN, Geneva and his research thereafter has covered several aspects of high energy physics.

[12][13] Later, shifting his focus to supersymmetry and supergravity, he suggested new τ -number violating signals for R-parity breaking and estimated an upper bound on the gaugino-gravitino mass ratio.

Theory of Lepton-Hadron Processes at High Energies: Partons, Scale Invariance and Light-Cone Physics,[18] Supersymmetry and Supergravity Nonperturbative QCD[19] Phenomenology of the standard model and beyond,[20] and Theory and Phenomenology of Sparticles: An Account of Four-Dimensional N=1 Supersymmetry in High Energy Physics.

Bose National Centre for Basic Sciences in 2004,[25] Measuring the deviation from maximal mixing of atmospheric neutrinos at INO, at PANIC 05 in Santa Fe, New Mexico,[26] Event-shape of dileptons plus missing energy at a linear collider as a SUSY/ADD discriminant at Indian Institute of Science in 2006,[27] Symmetries of nonhierarchical neutrinos from high to low scales at IWTHEP-2007,[28] and Dark Energy of the Universe at Indian Institute of Science Education and Research, Pune in 2015.

[29] Roy is one among the Indian participants in the Oxford-India Network in Theoretical Physical Sciences, an initiative promoted by the John Fell Fund.