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19992026
most citedEstimate of BR(B -> X_s gamma) at O(alpha_s^2)

651 citations · 4.5k across the 80 of their papers we have counts for

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Showing 2009Show all

6 papers · 1 filter

hep-ph2009★ 356 cited

Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

S. Actis, A. Arbuzov, G. Balossini +53

We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low energy e+e- colliders in Beijing,…

hep-ph2009★ 45 cited

Threshold expansion at order alpha_s^4 for the t-tbar invariant mass distribution at hadron colliders

Valentin Ahrens, Andrea Ferroglia, Matthias Neubert +2

We calculate the leading O(alpha_s^4) contributions to the invariant mass distribution of top-quark pairs produced at the Tevatron and LHC, in the limit where the invariant mass of…

hep-ph2009★ 2 cited

Top Quark Production at Hadron Colliders: an Overview

R. Bonciani, A. Ferroglia

The study of the properties of the top quark is one of the main goals of the Large Hadron Collider (LHC) physics program. The experimental precision expected at the LHC requires th…

hep-ph2009★ 179 cited

Two-loop divergences of massive scattering amplitudes in non-abelian gauge theories

Andrea Ferroglia, Matthias Neubert, Ben D. Pecjak +1

The infrared divergences of QCD scattering amplitudes can be derived from an anomalous dimension Γ, which is a matrix in color space and depends on the momenta and masses of the ex…

hep-ph2009★ 164 cited

Two-loop divergences of scattering amplitudes with massive partons

Andrea Ferroglia, Matthias Neubert, Ben D. Pecjak +1

We complete the study of two-loop infrared singularities of scattering amplitudes with an arbitrary number of massive and massless partons in non-abelian gauge theories. To this en…

hep-ph2009★ 97 cited

Two-Loop Planar Corrections to Heavy-Quark Pair Production in the Quark-Antiquark Channel

R. Bonciani, A. Ferroglia, T. Gehrmann +1

We evaluate the planar two-loop QCD diagrams contributing to the leading color coefficient of the heavy-quark pair production cross section, in the quark-antiquark annihilation cha…