https://doi.org/10.1140/epjc/s2004-02084-y
theoretical physics
Transverse-momentum-ordered showers and interleaved multiple interactions
Department of Theoretical Physics, Lund University, Sölvegatan 14A, 223 62 , Lund, Sweden
* e-mail: torbjorn@thep.lu.se
We propose a sophisticated framework for high-energy hadronic collisions, wherein different QCD physics processes are interleaved in a common sequence of falling transverse-momentum values. Thereby phase-space competition is introduced between multiple parton-parton interactions and initial-state radiation. As a first step we develop new transverse-momentum-ordered showers for initial- and final-state radiation, which should be of use also beyond the scope of the current article. These showers are then applied in the context of multiple interactions, and a few tests of the new model are presented. The article concludes with an outlook on further aspects, such as the possibility of a shower branching giving partons participating in two different interactions.
© Springer-Verlag, 2005
