Approximate NNLO Threshold Resummation in Heavy Flavour Decays

Abstract

We present an approximate NNLO evaluation of the QCD form factor resumming large logarithmic perturbative contributions in semi-inclusive heavy flavour decays.

16 pages, 3 figures, Latex; minor changes; 2 figures added

References in corpus (5)

• Next-to-next-to-leading logarithmic threshold resummation for deep-inelastic scattering and the Drell-Yan process
• Improved Approximations for the Three-Loop Splitting Functions in QCD
• Renormalon resummation and exponentiation of soft and collinear gluon radiation in the thrust distribution
• Resummed B -> X_u l nu Decay Distributions to Next-to-Leading Order
• Next-to-leading resummed coefficient function for the shape function

Cited by in corpus (16)

• QCD and strongly coupled gauge theories: challenges and perspectives
• The photon energy spectrum in B-> X_s + γin perturbative QCD through O(α_s^2)
• Soft-Gluon Resummation for Bottom Fragmentation in Top Quark Decay
• A model for next-to-leading order threshold resummed form factors
• Threshold Resummed Spectra in B -> Xu l nu Decays in NLO (I)
• A consistent resummation of mass and soft logarithms in processes with heavy flavours
• Taming the B --> X(s) gamma spectrum by Dressed Gluon Exponentiation
• Threshold resummed spectra in B ->Xu l nu decays in NLO (III)
• Modelling non-perturbative corrections to bottom-quark fragmentation
• Resummed Mass Distribution for Jets Initiated by Massive Quarks
• Semileptonic and leptonic $B$ decays, circa 2016
• Minimal prescription corrected spectra in heavy quark decays
• Determination of the CKM matrix elements |V(xb)|
• Brief review on semileptonic B decays
• Progress on semi-leptonic $B_{(s)}$ decays
• Status of $|V_{cb}|$ and $|V_{ub}|$ CKM matrix elements