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The two-loop scalar and tensor pentabox graph with light-like legs
C. Anastasiou, E. W. N. Glover, C. Oleari
We study the scalar and tensor integrals associated with the pentabox topology: the class of two-loop box integrals with seven propagators - five in one loop and three in the other…
Results in next-to-leading-log prompt-photon hadroproduction
Carlo Oleari
We present some results on renormalization and factorization scale dependence of soft-gluon resummation, at the next-to-leading-logarithmic level, in the fixed-target hadro-product…
Application of the negative-dimension approach to massless scalar box integrals
C. Anastasiou, E. W. N. Glover, C. Oleari
We study massless one-loop box integrals by treating the number of space-time dimensions D as a negative integer. We consider integrals with up to three kinematic scales (s, t and…
Scalar One-Loop Integrals using the Negative-Dimension Approach
C. Anastasiou, E. W. N. Glover, C. Oleari
We study massive one-loop integrals by analytically continuing the Feynman integral to negative dimensions as advocated by Halliday and Ricotta and developed by Suzuki and Schmidt.…
On the extraction of non-perturbative effects in the fragmentation functions of heavy quarks in e+ e- annihilation
Carlo Oleari
In this talk, we consider the computation of D and B fragmentation functions in e+e- annihilation. We present an improved differential cross section that merges together the O(alph…
A Phenomenological Study of Heavy-Quark Fragmentation Functions in e+e- Annihilation
P. Nason, C. Oleari
We consider the computation of D and B fragmentation functions in e+e- annihilation. We compare the results of fitting present data using the next-to-leading-logarithmic resummed a…