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CP-even scalar boson production via gluon fusion at the LHC
/ Anastasiou, Charalampos (Zurich, ETH) ; Duhr, Claude (CERN ; Louvain U., CP3) ; Dulat, Falko (Zurich, ETH) ; Furlan, Elisabetta (Zurich, ETH ; Santa Barbara, KITP) ; Gehrmann, Thomas (Zurich U.) ; Herzog, Franz (NIKHEF, Amsterdam) ; Lazopoulos, Achilleas (Zurich, ETH) ; Mistlberger, Bernhard (CERN)
In view of the searches at the LHC for scalar particle resonances in addition to the 125 GeV Higgs boson, we present the cross section for a CP-even scalar produced via gluon fusion at N3LO in perturbative QCD assuming that it couples directly to gluons in an effective theory approach. We refine our prediction by taking into account the possibility that the scalar couples to the top-quark and computing the corresponding contributions through NLO in perturbative QCD. [...]
arXiv:1605.05761; CP3-16-12; ZU-TH-11/16; NIKHEF 2016-013; CERN-TH-2016-085; NSF-KITP-16-039.-
2016-09-07 - 33 p.
- Published in : JHEP 09 (2016) 037
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Springer Open Access article: PDF;
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High precision determination of the gluon fusion Higgs boson cross-section at the LHC
/ Anastasiou, Charalampos (Zurich, ETH) ; Duhr, Claude (CERN ; Louvain U., CP3) ; Dulat, Falko (Zurich, ETH) ; Furlan, Elisabetta (Zurich, ETH) ; Gehrmann, Thomas (Zurich U.) ; Herzog, Franz (NIKHEF, Amsterdam) ; Lazopoulos, Achilleas (Zurich, ETH) ; Mistlberger, Bernhard (CERN)
We present the most precise value for the Higgs boson cross-section in the gluon-fusion production mode at the LHC. Our result is based on a perturbative expansion through N$^3$LO in QCD, in an effective theory where the top-quark is assumed to be infinitely heavy, while all other Standard Model quarks are massless [...]
arXiv:1602.00695; CP3-16-01; ZU-TH-27-15; NIKHEF-2016-004; CERN-TH-2016-006; CP3-16-01; ZU-TH 27-15; NIKHEF 2016-004; CERN-TH-2016-006.-
Geneva : CERN, 2016-05-10 - 114 p.
- Published in : JHEP 05 (2016) 058
Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF;
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Soft Expansion of Double-Real-Virtual Corrections to Higgs Production at N$^3$LO
/ Anastasiou, Charalampos (Zurich, ETH) ; Duhr, Claude (CERN ; Louvain U., CP3) ; Dulat, Falko (Zurich, ETH) ; Furlan, Elisabetta (Fermilab) ; Herzog, Franz (NIKHEF, Amsterdam) ; Mistlberger, Bernhard (Zurich, ETH)
We present methods to compute higher orders in the threshold expansion for the one-loop production of a Higgs boson in association with two partons at hadron colliders. This process contributes to the N$^3$LO Higgs production cross section beyond the soft-virtual approximation. [...]
arXiv:1505.04110; CERN-PH-TH-2015-092; CP3-15-11; FERMILAB-PUB-15-089-T; NIKHEF-2015-016; CERN-PH-TH-2015-092; CP3-15-11; FERMILAB-PUB-15-089-T; NIKHEF-2015-016.-
Geneva : CERN, 2015-08-12 - 30 p.
- Published in : JHEP 08 (2015) 051
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; Springer Open Access article: PDF; External link: Fermilab Library Server (fulltext available)
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Higgs boson gluon-fusion production in N3LO QCD
/ Anastasiou, Charalampos (Zurich, ETH) ; Duhr, Claude (CERN ; Louvain U., CP3) ; Dulat, Falko (Zurich, ETH) ; Herzog, Franz (NIKHEF, Amsterdam) ; Mistlberger, Bernhard (Zurich, ETH)
We present the cross-section for the production of a Higgs boson at hadron-colliders at next-to- next-to-next-to-leading order (N3LO) in perturbative QCD. The calculation is based on a method to perform a series expansion of the partonic cross-section around the threshold limit to an arbitrary order. [...]
arXiv:1503.06056; CERN-PH-TH-2015-055; CP3-15-07.-
Geneva : CERN, 2015 - 5 p.
- Published in : Phys. Rev. Lett. 114 (2015) 212001
APS Open Access article: PDF; Fulltext: PDF; External link: Preprint
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Higgs boson gluon-fusion production beyond threshold in N$^3$LO QCD
/ Anastasiou, Charalampos (Zurich, ETH) ; Duhr, Claude (Louvain U., CP3) ; Dulat, Falko (Zurich, ETH) ; Furlan, Elisabetta (Fermilab) ; Gehrmann, Thomas (Zurich U.) ; Herzog, Franz (NIKHEF, Amsterdam ; CERN) ; Mistlberger, Bernhard (Zurich, ETH)
In this article, we compute the gluon fusion Higgs boson cross-section at N3LO through the second term in the threshold expansion. This calculation constitutes a major milestone towards the full N3LO cross section. [...]
arXiv:1411.3584; FERMILAB-PUB-14-461-T.-
2015-03-18 - 25 p.
- Published in : JHEP 03 (2015) 091
Article from SCOAP3: PDF; Fulltext: fermilab-pub-14-461-t - PDF; arXiv:1411.3584 - PDF; Springer Open Access article: PDF; External link: Fermilab Library Server (fulltext available)
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Higgs boson gluon–fusion production at threshold in N$^3$LO QCD
/ Anastasiou, Charalampos (Zurich, ETH) ; Duhr, Claude (Durham U., IPPP) ; Dulat, Falko (Zurich, ETH) ; Furlan, Elisabetta (Fermilab) ; Gehrmann, Thomas (Zurich U.) ; Herzog, Franz (CERN) ; Mistlberger, Bernhard (Zurich, ETH)
We present the cross-section for the threshold production of the Higgs boson at hadron-colliders at next-to-next-to-next-to-leading order (N3LO) in perturbative QCD. We present an analytic expression for the partonic cross-section at threshold and the impact of these corrections on the numerical estimates for the hadronic cross-section at the LHC. [...]
arXiv:1403.4616; IPPP-14-17; DCPT-14-34; ZU-TH-07-14; CERN-PH-TH-2014-042; FERMILAB-PUB-14-052-T; IPPP-14-17; DCPT-14-34; ZU-TH 07-14; CERN-PH-TH-2014-042; FERMILAB-PUB-14-052-T.-
2014-10-07 - 4 p.
- Published in : Phys. Lett. B 737 (2014) 325-328
Article from SCOAP3: PDF; Elsevier Open Access article: PDF; Fulltext: PDF; External links: Fermilab Library Server (fulltext available); Fulltext
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Real-Virtual contributions to the inclusive Higgs cross-section at N3LO
/ Anastasiou, Charalampos (Zurich, ETH) ; Duhr, Claude (Durham U., IPPP) ; Dulat, Falko (Zurich, ETH) ; Herzog, Franz (CERN) ; Mistlberger, Bernhard (Zurich, ETH)
We compute the contributions to the N3LO inclusive Higgs boson cross-section from the square of one-loop amplitudes with a Higgs boson and three QCD partons as external states. Our result is a Taylor expansion in the dimensional regulator epsilon, where the coefficients of the expansion are analytic functions of the ratio of the Higgs boson mass and the partonic center of mass energy and they are valid for arbitrary values of this ratio. [...]
arXiv:1311.1425; IPPP-13-92; DCTP-13-184; CERN-PH-TH-2013-258; MCNET-13-18; IPPP-13-92; DCTP-13-184; CERN-PH-TH-2013-258; MCNET-13-18.-
2013 - 43 p.
- Published in : JHEP 12 (2013) 088
Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
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