Abstract
Sudakov-type distributions are at the heart of generating radiation in parton showers as well as contemporary NLO matching algorithms along the lines of the POWHEG algorithm. In this paper, the C++ library ExSample is introduced, which implements adaptive sampling of Sudakov-type distributions for splitting kernels which are in general only known numerically. Besides the evolution variable, the splitting kernels can depend on an arbitrary number of other degrees of freedom to be sampled, and any number of further parameters which are fixed on an event-by-event basis.
Article PDF
Similar content being viewed by others
References
M. Bähr et al., Eur. Phys. J. C 58, 639 (2008). 0803.0883
T. Sjöstrand, S. Mrenna, P. Skands, Comput. Phys. Commun. 178, 852 (2008). 0710.3820
T. Gleisberg et al., J. High Energy Phys. 02, 007 (2009). 0811.4622
M.H. Seymour, Comput. Phys. Commun. 90, 95 (1995). hep-ph/9410414
M. Bengtsson, T. Sjostrand, Phys. Lett. B 185, 435 (1987)
M. Bengtsson, T. Sjostrand, Nucl. Phys. B 289, 810 (1987)
E. Norrbin, T. Sjöstrand, Nucl. Phys. B 603, 297 (2001). hep-ph/0010012
G. Miu, T. Sjostrand, Phys. Lett. B 449, 313 (1999). hep-ph/9812455
P. Nason, J. High Energy Phys. 11, 040 (2004). hep-ph/0409146
G. Corcella et al., hep-ph/0210213 (2002)
T. Sjöstrand, S. Mrenna, P. Skands, J. High Energy Phys. 05, 026 (2006). hep-ph/0603175
A. Buckley et al., Phys. Rep. 504, 145 (2011). 1101.2599
S. Platzer, M. Sjodahl, Eur. Phys. J. Plus 127, 26 (2012)
L. Lönnblad, ACDC—The Auto Compensating Divide-and-Conquer Phase Space Generator
S. Jadach, Comput. Phys. Commun. 152, 55 (2003). physics/0203033
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
Open Access This article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
About this article
Cite this article
Plätzer, S. ExSample—a library for sampling Sudakov-type distributions. Eur. Phys. J. C 72, 1929 (2012). https://doi.org/10.1140/epjc/s10052-012-1929-x
Received:
Revised:
Published:
DOI: https://doi.org/10.1140/epjc/s10052-012-1929-x