Built on

E. Farhi, A QCD Test for Jets , Phys. Rev. Lett. 39
1977
Earlier work this paper cites.
S. Catani, B. R. Webber and G. Marchesini, QCD coherent branching and semiinclusive processes at large x , Nucl. Phys. B349
1991
Earlier work this paper cites.
M. H. Seymour, Matrix element corrections to parton shower algorithms , Comput. Phys. Commun. 90
1995
Earlier work this paper cites.
S. Catani and M. H. Seymour, A General algorithm for calculating jet cross-sections in NLO QCD , Nucl. Phys. B485
1997
Earlier work this paper cites.
S. Badger, B. Biedermann, P. Uwer and V. Yundin, Numerical evaluation of virtual corrections to multi-jet production in massless QCD , Comput. Phys. Commun. 184
Original
1998
Earlier work this paper cites.
S. Catani, F. Krauss, R. Kuhn and B. R. Webber, QCD matrix elements + parton showers , JHEP 11
2001
Earlier work this paper cites.
M. Dobbs and J. B. Hansen, The HepMC C++ Monte Carlo event record for High Energy Physics , Comput. Phys. Commun. 134
2001
Earlier work this paper cites.
F. Krauss, Matrix elements and parton showers in hadronic interactions , JHEP 08
2002
Earlier work this paper cites.
S. Frixione and B. R. Webber, Matching NLO QCD computations and parton shower simulations , JHEP 06
2002
Earlier work this paper cites.
S. Catani, S. Dittmaier, M. H. Seymour and Z. Trocsanyi, The Dipole formalism for next-to-leading order QCD calculations with massive partons , Nucl. Phys. B627
2002
Earlier work this paper cites.
F. Krauss, R. Kuhn and G. Soff, AMEGIC++ 1.0: A Matrix element generator in C++ , JHEP 02
2002
Earlier work this paper cites.
T. Gleisberg, S. Höche, F. Krauss, A. Schälicke, S. Schumann and J.-C. Winter, SHERPA 1. alpha: A Proof of concept version , JHEP 02
2004
Earlier work this paper cites.
P. Nason, A New method for combining NLO QCD with shower Monte Carlo algorithms , JHEP 11
2004
Earlier work this paper cites.
S. Gieseke, Uncertainties of Sudakov form-factors , JHEP 01
2005
Earlier work this paper cites.
A. Schälicke and F. Krauss, Implementing the ME+PS merging algorithm , JHEP 07
2005
Earlier work this paper cites.
hep-ph/0508110
M. R. Whalley, D. Bourilkov and R. C. Group, The Les Houches accord PDFs (LHAPDF) and LHAGLUE , in HERA and the LHC: A Workshop on the implications of HERA for LHC physics. Proceedings, Part B , 2005 · 2005
Earlier work this paper cites.
T. Sjöstrand, S. Mrenna and P. Z. Skands, PYTHIA 6.4 Physics and Manual , JHEP 05
2006
Earlier work this paper cites.
hep-ph/0609285
T. Kluge, K. Rabbertz and M. Wobisch, FastNLO: Fast pQCD calculations for PDF fits , in Deep inelastic scattering. Proceedings, 14th International Workshop, DIS 2006, Tsukuba, Japan, April 20-24, 2006 , pp. 483–486, 2006 · 2006
Earlier work this paper cites.
M. Bähr et al., Herwig++ Physics and Manual , Eur. Phys. J. C58
Original
2008
Earlier work this paper cites.
S. Schumann and F. Krauss, A Parton shower algorithm based on Catani-Seymour dipole factorisation , JHEP 03
Original
2008
Earlier work this paper cites.
T. Gleisberg and S. Höche, Comix, a new matrix element generator , JHEP 12
Original
2008
Earlier work this paper cites.
T. Gleisberg and F. Krauss, Automating dipole subtraction for QCD NLO calculations , Eur. Phys. J. C53
Original
2008
Earlier work this paper cites.
C. F. Berger, Z. Bern, L. J. Dixon, F. Febres Cordero, D. Forde, H. Ita et al., An Automated Implementation of On-Shell Methods for One-Loop Amplitudes , Phys. Rev. D78
Original
2008
Earlier work this paper cites.

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Original
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Later among the works it cites.
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2016

Reweighting QCD matrix-element and parton-shower calculations

Bothmann, Enrico, Schönherr, Marek, Schumann, Steffen

Understand

We present the implementation and validation of the techniques used to efficiently evaluate parametric and perturbative theoretical uncertainties in matrix-element plus parton-shower simulations within the Sherpa event-generator framework.

By tracing the full $\alpha_s$ and PDF dependences, including the parton-shower component, as well as the fixed-order scale uncertainties, we compute variational event weights on-the-fly, thereby greatly reducing the computational costs to obtain theoretical-uncertainty estimates.

Built on

E. Farhi, A QCD Test for Jets , Phys. Rev. Lett. 39
1977
Earlier work this paper cites.
S. Catani, B. R. Webber and G. Marchesini, QCD coherent branching and semiinclusive processes at large x , Nucl. Phys. B349
1991
Earlier work this paper cites.
M. H. Seymour, Matrix element corrections to parton shower algorithms , Comput. Phys. Commun. 90
1995
Earlier work this paper cites.
S. Catani and M. H. Seymour, A General algorithm for calculating jet cross-sections in NLO QCD , Nucl. Phys. B485
1997
Earlier work this paper cites.
S. Badger, B. Biedermann, P. Uwer and V. Yundin, Numerical evaluation of virtual corrections to multi-jet production in massless QCD , Comput. Phys. Commun. 184
Original
1998
Earlier work this paper cites.
S. Catani, F. Krauss, R. Kuhn and B. R. Webber, QCD matrix elements + parton showers , JHEP 11
2001
Earlier work this paper cites.
M. Dobbs and J. B. Hansen, The HepMC C++ Monte Carlo event record for High Energy Physics , Comput. Phys. Commun. 134
2001
Earlier work this paper cites.
F. Krauss, Matrix elements and parton showers in hadronic interactions , JHEP 08
2002
Earlier work this paper cites.
S. Frixione and B. R. Webber, Matching NLO QCD computations and parton shower simulations , JHEP 06
2002
Earlier work this paper cites.
S. Catani, S. Dittmaier, M. H. Seymour and Z. Trocsanyi, The Dipole formalism for next-to-leading order QCD calculations with massive partons , Nucl. Phys. B627
2002
Earlier work this paper cites.
F. Krauss, R. Kuhn and G. Soff, AMEGIC++ 1.0: A Matrix element generator in C++ , JHEP 02
2002
Earlier work this paper cites.
T. Gleisberg, S. Höche, F. Krauss, A. Schälicke, S. Schumann and J.-C. Winter, SHERPA 1. alpha: A Proof of concept version , JHEP 02
2004
Earlier work this paper cites.
P. Nason, A New method for combining NLO QCD with shower Monte Carlo algorithms , JHEP 11
2004
Earlier work this paper cites.
S. Gieseke, Uncertainties of Sudakov form-factors , JHEP 01
2005
Earlier work this paper cites.
A. Schälicke and F. Krauss, Implementing the ME+PS merging algorithm , JHEP 07
2005
Earlier work this paper cites.
hep-ph/0508110
M. R. Whalley, D. Bourilkov and R. C. Group, The Les Houches accord PDFs (LHAPDF) and LHAGLUE , in HERA and the LHC: A Workshop on the implications of HERA for LHC physics. Proceedings, Part B , 2005 · 2005
Earlier work this paper cites.
T. Sjöstrand, S. Mrenna and P. Z. Skands, PYTHIA 6.4 Physics and Manual , JHEP 05
2006
Earlier work this paper cites.
hep-ph/0609285
T. Kluge, K. Rabbertz and M. Wobisch, FastNLO: Fast pQCD calculations for PDF fits , in Deep inelastic scattering. Proceedings, 14th International Workshop, DIS 2006, Tsukuba, Japan, April 20-24, 2006 , pp. 483–486, 2006 · 2006
Earlier work this paper cites.
M. Bähr et al., Herwig++ Physics and Manual , Eur. Phys. J. C58
Original
2008
Earlier work this paper cites.
S. Schumann and F. Krauss, A Parton shower algorithm based on Catani-Seymour dipole factorisation , JHEP 03
Original
2008
Earlier work this paper cites.
T. Gleisberg and S. Höche, Comix, a new matrix element generator , JHEP 12
Original
2008
Earlier work this paper cites.
T. Gleisberg and F. Krauss, Automating dipole subtraction for QCD NLO calculations , Eur. Phys. J. C53
Original
2008
Earlier work this paper cites.
C. F. Berger, Z. Bern, L. J. Dixon, F. Febres Cordero, D. Forde, H. Ita et al., An Automated Implementation of On-Shell Methods for One-Loop Amplitudes , Phys. Rev. D78
Original
2008
Earlier work this paper cites.