Two loop soft function for secondary massive quarks

Author(s)

Simon Gritschacher, Andre H. Hoang, Ilaria Jemos, Piotr Pietrulewicz

Abstract

We present the calculation of the O(α2sCFTF) massive quark corrections to the soft function for the double hemisphere jet mass distribution in e+e− collisions, a necessary ingredient for the calculation of several event shape distributions at N3LL

order. The use of the mass as an infrared regulator allows us to derive

the momentum space results for the massless quark structures at O(α2sCFTFnf) and the gluonic structures at O(α2sCACF),

which have not been given so far in the literature. Furthermore, we

compute the corresponding corrections in the soft function for thrust,

the most prominent projection of the double hemisphere mass

distribution. Finally we give expressions for the corresponding

renormalon subtractions in the gap scheme.

Organisation(s)

Particle Physics

External organisation(s)

Ludwig-Maximilians-Universität München

Journal

Physical Review D

Volume

89

No. of pages

22

ISSN

1550-7998

Publication date

01-2014

Peer reviewed

Yes

Austrian Fields of Science 2012

103034 Particle physics

Keywords

ASJC Scopus subject areas

Nuclear and High Energy Physics, Physics and Astronomy (miscellaneous)

Portal url

https://ucrisportal.univie.ac.at/en/publications/two-loop-soft-function-for-secondary-massive-quarks(70c980ea-0c48-44b5-8f1c-675c69c95c57).html