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Collinearity approximations and kinematic shifts in partonic shower algorithms

Abstract:
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).
Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Theoretical Physics
Role:
Author
Journal:
EUROPEAN PHYSICAL JOURNAL C More from this journal
Volume:
72
Issue:
12
Pages:
1-4
Publication date:
2012-12-01
DOI:
EISSN:
1434-6052
ISSN:
1434-6044
Language:
English
Pubs id:
pubs:368111
UUID:
uuid:a8792ff6-da94-48e3-8111-9d68f82ec1ed
Local pid:
pubs:368111
Source identifiers:
368111
Deposit date:
2013-11-17

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