TY - JOUR
T1 - Color-singlet production at NNLO in MCFM
AU - Boughezal, Radja
AU - Campbell, John M.
AU - Ellis, R. Keith
AU - Focke, Christfried
AU - Giele, Walter
AU - Liu, Xiaohui
AU - Petriello, Francis John
AU - Williams, Ciaran
N1 - Funding Information:
RKE would like to thank Robert Harlander for helpful discussions. R. B. is supported by the DOE contract DE-AC02-06CH11357. J. C. and W. G. are supported by the DOE contract DE-AC02-07CH11359. C. F. is supported by the NSF Grant PHY-1520916. X. L. is supported by the DOE Grant DE-FG02-93ER-40762. F. P. is supported by the DOE Grants DE-FG02-91ER40684 and DE-AC02-06CH11357. Support was provided by the Center for Computational Research at the University at Buffalo. R. B., W. G., X. L., and F. P. thank the Kavli Institute for Theoretical Physics at the University of California, Santa Barbara, which is supported by the U. S. National Science Foundation under Grant No. NSF PHY11-25915. C. W. is supported U. S. National Science Foundation under Grant No. NSF PHY-1619877
Publisher Copyright:
© 2016, The Author(s).
PY - 2017/1/1
Y1 - 2017/1/1
N2 - We present the implementation of several color-singlet final-state processes at Next-to-Next-to Leading Order (NNLO) accuracy in QCD to the publicly available parton-level Monte Carlo program MCFM. Specifically we discuss the processes pp→ H, pp→ Z, pp→ W, pp→ HZ, pp→ HW and pp→ γγ. Decays of the unstable bosons are fully included, resulting in a flexible fully differential Monte Carlo code. The NNLO corrections have been calculated using the non-local N-jettiness subtraction approach. Special attention is given to the numerical aspects of running MCFM for these processes at this order. We pay particular attention to the systematic uncertainties due to the power corrections induced by the N-jettiness regularization scheme and the evaluation time needed to run the hybrid openMP/MPI version of MCFM at NNLO on multi-processor systems.
AB - We present the implementation of several color-singlet final-state processes at Next-to-Next-to Leading Order (NNLO) accuracy in QCD to the publicly available parton-level Monte Carlo program MCFM. Specifically we discuss the processes pp→ H, pp→ Z, pp→ W, pp→ HZ, pp→ HW and pp→ γγ. Decays of the unstable bosons are fully included, resulting in a flexible fully differential Monte Carlo code. The NNLO corrections have been calculated using the non-local N-jettiness subtraction approach. Special attention is given to the numerical aspects of running MCFM for these processes at this order. We pay particular attention to the systematic uncertainties due to the power corrections induced by the N-jettiness regularization scheme and the evaluation time needed to run the hybrid openMP/MPI version of MCFM at NNLO on multi-processor systems.
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U2 - 10.1140/epjc/s10052-016-4558-y
DO - 10.1140/epjc/s10052-016-4558-y
M3 - Article
AN - SCOPUS:85007560408
VL - 77
JO - European Physical Journal C
JF - European Physical Journal C
SN - 1434-6044
IS - 1
M1 - 7
ER -