Jets in Soft-Collinear Effective Theory
Author | : Andrew Hornig |
Publisher | : |
Total Pages | : 376 |
Release | : 2010 |
ISBN-10 | : OCLC:769458176 |
ISBN-13 | : |
Rating | : 4/5 ( Downloads) |
Download or read book Jets in Soft-Collinear Effective Theory written by Andrew Hornig and published by . This book was released on 2010 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Factorization is the central ingredient in any theoretical prediction for collider experiments. I introduce a factorization formalism that can be applied to any desired observable, like event shapes or jet observables, for any number of jets and a wide range of jet algorithms in leptonic or hadronic collisions. This is achieved by using soft-collinear effective theory to prove the formal factorization of a generic fully-differential cross section in terms of a hard coefficient, and generic jet and soft functions. The factorization formula for any such observable immediately follows from our general result, including the precise definition of the functions appropriate for the observable in question. As a first application, I present a new prediction of angularity distributions in e+e- annihilation. Angularities tau_a are an infinite class of event shapes which vary in their sensitivity to the substructure of jets in the final state, controlled by a continuous parameter a