A method to construct Monte Carlo event generators at arbitrarily nonleading order is explained for the case of a nongauge theory. A precise and correct treatment of parton kinematics is provided. Modifications of the conventional formalism are required: parton showering is not exactly the same as Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution, and the external line prescription for the hard scattering differs from the Lehmann-Symanzik-Zimmermann prescription. The prospects for extending the results to QCD are discussed.
|Number of pages
|Physical Review D - Particles, Fields, Gravitation and Cosmology
|Published - May 1 2002
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)