2 citations · 2 across the 1 of their papers we have counts for
4 papers
The evaluation of loop amplitudes via differential equations
U. Aglietti
The evaluation of loop amplitudes via differential equations and harmonic polylogarithms is discussed at an introductory level. The method is based on evolution equations in the ma…
A new sum rule to determine Vub/Vcb
U. Aglietti
We present a new sum rule which does not contain any Landau-pole effect and allows a determination of Vub/Vcb with a theoretical error of O(5%).
Resummed coefficient function for the shape function
U. Aglietti
We present a leading evaluation of the resummed coefficient function for the shape function. It is also shown that the coefficient function is short-distance-dominated. Our results…
A sum rule from the shape function
U. Aglietti
We present a sum rule relating the electron energy spectrum and the hadron mass distribution in semileptonic b -> u decays close to threshold. The relation found is free from non-p…