NPAC (Nuclear/Particle/Astro/Cosmo) Forums |
Organized by: Prof. Lu Lu
Events on Friday, April 25th, 2008
- Joint Pheno and NPAC Seminar
- Disentangling the Strong Interactions in Two-Jet Event Shapes
- Time: 2:30 pm - 3:30 pm
- Place: 5280 Chamberlin
- Speaker: Chris Lee, LBL
- Abstract: Event shapes characterize hadronic final states produced in e+ e- collisions. The two-jet kinematic endpoint of event shape distributions is particularly sensitive to the nonperturbative effects of hadronization. Soft-collinear effective theory provides the tools to factorize event shape distributions in the two-jet region into perturbatively-calculable and nonperturbative contributions. From the resulting factorization theorem we can deduce the extent to which these nonperturbative contributions are universal across different event shapes.