Subleading Corrections To Thrust Using Effective Field Theory

Understand

We calculate the subleading corrections to the thrust rate using Soft-Collinear Effective Theory to factorize the rate and match onto jet and soft operators that describe the degrees of freedom of the relevant scales.

• We work in the perturbative regime where all the scales are well above \Lambda_QCD.
• The thrust rate involves an incomplete sum over final states that is enforced by a measurement operator.
• Subleading corrections require matching onto not only the higher dimensional dijet operators, but also matching onto subleading measurement operators in the effective theory.