SANCnews: Sector f f b b

Abstract In this paper we describe the implementation of processes f_1over(f, ̄)_1Z Z → 0 and f_1over(f, ̄)_1H Z → 0 into the framework of SANC system. The f_1stands for a massless fermion f whose mass is kept non-zero only in arguments of ln functions and →0 means that all 4-momenta flow inwards. The derived scalar form factors can be used for any cross channel after an appropriate permutation of their arguments (s, t, u). We present the covariant and helicity amplitudes for these processes... Title of program: SANC Catalogue Id: ADXK_v1_1 Nature of problem Automatic calculation of pseudo- and realistic observables for various processes and decays in the Standard Model of Electroweak interactions, QCD and QED at one-loop precision level. Form factors and helicity amplitudes free of UV divergences are produced. For exclusion of IR singularities the soft photon emission is included. Versions of this program held in the CPC repository in Mendeley Data ADXK_v1_0; SANC; 10.1016/j.cpc.2005.12.006 ADXK_v1_1; SANC; 10.1016/j.cpc.2007.06.006 This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)