Affiliations: Department of Biochemistry, Dr. B.C. Roy Post Graduate Institute of Basic medical Sciences & I.P.G.M.E.&R, 244B, Acharya Jagadish Chandra Bose Road, Kolkata700020, India (P. G., A. D. and S. K. B.), Department of Pharmacology, Dr. B.C. Roy Post Graduate Institute of Basic medical Sciences & I.P.G.M.E.&R, Kolkata-700 020 (R. S. and M. C.), Bio-Organic Division, Bhabha Atomic Resear...

A critical subject in fully differential QED calculations originates from numerical instabilities due to small fermion masses that act as regulators of collinear singularities. At next-to-next-to-leading order (NNLO) a major challenge is therefore find stable implementation numerically delicate real-virtual matrix elements. In the case Bhabha scattering this has so far prevented development fix...

Lokesh C. Tribedi,* P. Richard, Y. D. Wang, C. D. Lin, L. Gulyas, and M. E. Rudd Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400005, India J. R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, Kansas 66506-2601 Institute of Nuclear Research of the Hungarian Academy of Science (ATOMKI), P.O. Box 51, H-4001 Debrecen, Hungary Department...