rhad: a program for the evaluation of the hadronic R-ratio in the perturbative regime of QCD. This paper describes the fortran program rhad which performs a numerical evaluation of the photon-induced hadronic R-ratio, R(s), related to the cross section for electron–positron annihilation, for a given center-of-mass energy . In rhad the state-of-the-art perturbative corrections to R(s) are implemented and the running and decoupling of the strong coupling constant and the quark masses is automatically treated consistently. Several options allow for a flexible use of the program.
Keywords for this software
References in zbMATH (referenced in 3 articles )
Showing results 1 to 3 of 3.
- Calame, C.Carloni; Czyż, H.; Gluza, J.; Gunia, M.; Montagna, G.; Nicrosini, O.; Piccinini, F.; Riemann, T.; Worek, M.: NNLO leptonic and hadronic corrections to Bhabha scattering and luminosity monitoring at meson factories (2011)
- Hoang, André H.; Mateu, Vicent; Zebarjad, S.Mohammad: Heavy quark vacuum polarization function at $\cal O(\alpha_s^2)$ and $\cal O(\alpha_s^3)$ (2009)
- Bekavac, Stefan: Calculation of massless Feynman integrals using harmonic sums (2006)