Subleading terms in asymptotic Passarino-Veltman functions

M. Beccaria (1, 2) , G. J. Gounaris , J. Layssac (3) , F. M. Renard (3)

1 INFN, Sezione di Lecce - Istituto Nazionale di Fisica Nucleare, Sezione di Lecce
2 Physics Department
3 LPTA - Laboratoire de Physique Théorique et Astroparticules

We write explicit and self-contained asymptotic expressions for the tensorial B, C and D Passarino-Veltman functions. These include quadratic and linear logarithmic terms, as well as subleading constant terms. Only mass-suppressed O(m^2/s) contributions are neglected. We discuss the usefulness of such expressions, particularly for studying one-loop effects in 2-to-2 body processes at high energy.

Mots clés: MSSM; perturbative theory; supersymmetry

Domaines: Physique des Hautes Energies - Phénoménologie [hep-ph]

M. Beccaria, G. J. Gounaris, J. Layssac, F. M. Renard. Subleading terms in asymptotic Passarino-Veltman functions. International Journal of Modern Physics A, 2008, 23/12, pp.1839-1862. ⟨10.1142/S0217751X08039839⟩. ⟨in2p3-00186368⟩