Joint INFN-UNIMI-UNIMIB Pheno Seminars
Three loop QCD corrections to heavy quark form factors
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Europe/Zurich
Aula Caldirola (Dipartimento di Fisica, Università degli Studi di Milano)
Aula Caldirola
Dipartimento di Fisica, Università degli Studi di Milano
Via Giovanni Celoria, 16, 20133 Milano MI, Italia
Description
We present the three loop QCD corrections to the heavy quark form factors in the case of vector, axialvector, scalar and pseudoscalar currents. We evaluate the master integrals applying a new method based on differential equations for general bases, which is applicable for all first order factorizing systems. The analytic results are expressed in terms of harmonic polylogarithms and real-valued cyclotomic harmonic polylogarithms.