Expansion by regions with pySecDec

Heinrich, G.; Jahn, S.; Jones, S.P.; Kerner, M.; Langer, F.; Magerya, V.; Põldaru, A.; Schlenk, J.; Villa, E.

doi:10.1016/j.cpc.2021.108267

All Outputs (6)

Exclusive J/ψ and ϒ production in high-energy pp and p-Pb collisions (2022)
Journal Article
Flett, C., Jones, S., Martin, A., Ryskin, M., & Teubner, T. (2022). Exclusive J/ψ and ϒ production in high-energy pp and p-Pb collisions. Physical Review D, 106(7), https://doi.org/10.1103/physrevd.106.074021

We present a formalism for determining the cross section for exclusive heavy vector meson production (J/ψ,Υ) as a function of rapidity, in both high-energy proton-proton and proton-heavy ion collisions, at next-to-leading order in QCD. We compare and... Read More about Exclusive J/ψ and ϒ production in high-energy pp and p-Pb collisions.

ZH production in gluon fusion at NLO in QCD (2022)
Journal Article
Chen, L., Davies, J., Heinrich, G., Jones, S. P., Kerner, M., Mishima, G., …Steinhauser, M. (2022). ZH production in gluon fusion at NLO in QCD. Journal of High Energy Physics, 2022(8), Article 56. https://doi.org/10.1007/jhep08%282022%29056

We present fully differential next-to-leading order results for Higgs production in association with a Z boson in gluon fusion. Our two-loop virtual contributions are evaluated numerically using sector decomposition, including full top-quark mass eff... Read More about ZH production in gluon fusion at NLO in QCD.

Targeting multi-loop integrals with neural networks (2022)
Journal Article
Winterhalder, R., Magerya, V., Villa, E., Jones, S., Kerner, M., Butter, A., …Plehn, T. (2022). Targeting multi-loop integrals with neural networks. SciPost Physics, 12(4), Article 129. https://doi.org/10.21468/scipostphys.12.4.129

Top-quark mass effects in H+jet and H+2 jets production (2022)
Journal Article
Chen, X., Huss, A., Jones, S., Kerner, M., Lang, J., Lindert, J., & Zhang, H. (2022). Top-quark mass effects in H+jet and H+2 jets production. Journal of High Energy Physics, 2022(3), Article 096. https://doi.org/10.1007/jhep03%282022%29096

We present calculations of Higgs boson production via gluon-gluon fusion in association with one or two additional jets at next-to-leading order in QCD. The calculation of H+jet is exact in the treatment of the top-quark mass, whereas for the H+2 jet... Read More about Top-quark mass effects in H+jet and H+2 jets production.

Predictions of exclusive ϒ photoproduction at the LHC and future colliders (2022)
Journal Article
Flett, C., Jones, S., Martin, A., Ryskin, M., & Teubner, T. (2022). Predictions of exclusive ϒ photoproduction at the LHC and future colliders. Physical Review D, 105(3), https://doi.org/10.1103/physrevd.105.034008

The cross section for exclusive ϒ ultraperipheral photoproduction at present and future colliders is determined using the low x gluon parton distribution function extracted from an analysis of exclusive J=ψ measurements performed at the Hadron-Electr... Read More about Predictions of exclusive ϒ photoproduction at the LHC and future colliders.

Expansion by regions with pySecDec (2022)
Journal Article
Heinrich, G., Jahn, S., Jones, S., Kerner, M., Langer, F., Magerya, V., …Villa, E. (2022). Expansion by regions with pySecDec. Computer Physics Communications, 273, Article 108267. https://doi.org/10.1016/j.cpc.2021.108267

We discuss the technique of expansion by regions from a geometric perspective, and its implementation within pySecDec, a toolbox for the evaluation of dimensionally regulated parameter integrals. The program offers an automated way to perform asympto... Read More about Expansion by regions with pySecDec.