# DPF 2011

8-13 August 2011
Rhode Island Convention Center
US/Eastern timezone

## The Rapidity Renormalization Group

9 Aug 2011, 15:10
20m
551 A (Rhode Island Convention Center)

### 551 A

#### Rhode Island Convention Center

Parallel contribution Perturbative and non-Perturbative QCD

### Speaker

Dr Jui-Yu Chiu (Carnegie Mellon University)

### Description

We introduce a systematic approach for the resummation of perturbative series which involve large logarithms not only due to large invariant mass ratios but large rapidities as well. Series of this form can appear in a variety of gauge theory observables. The formalism is utilized to calculate the jet broadening event shape and and transverse momentum ($p_T$) distributions in a systematic fashion to next to leading logarithmic order. An operator definition of the factorized cross section as well as a closed form of the next-to leading log cross section are presented.

### Primary authors

Dr Ambar Jain (Carnegie Mellon University) Mr Duff Neill (Carnegie Mellon University) Prof. Ira Rothstein (Carnegie Mellon University) Dr Jui-Yu Chiu (Carnegie Mellon University)

 Slides