Collinearity approximations and kinematic shifts in partonic shower algorithms

Journal article

We study kinematic effects due to the approximation of on-shell, collinear partons in shower Monte Carlo event generators. We observe that the collinearity approximation, combined with the requirements of energy-momentum conservation, gives rise to a kinematic shift, event by event, in longitudinal momentum distributions. We present numerical results in the case of jet and heavy-flavor production processes measured at the LHC. © 2012 The Author(s).

Authors: Hautmann, F; Jung, H

• Publication status: Published
• Journal: EUROPEAN PHYSICAL JOURNAL C
• Volume: 72
• Issue: 12
• Pages: 1-4
• Publication date: 2012-12-01
• DOI: 10.1140/epjc/s10052-012-2254-0
• EISSN: 1434-6052
• ISSN: 1434-6044
• Language: English