Summations of large logarithms by parton showers

Monday, 30 November 2020 at 11:15, in Y36 K08 - Campus Irchel

We propose a method to examine how a parton shower sums large logarithms. In this method, one works with an appropriate integral transform of the distribution for the observable of interest. Then, one reformulates the parton shower so as to obtain the transformed distribution as an exponential for which one can compute the terms in the perturbative expansion of the exponent. We apply this general method for the thrust distribution in electron-positron annihilation.