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Truncation, validity, uncertainties
/ Brivio, Ilaria (Heidelberg U. ; Zurich U.) ; Dawson, Sally (Brookhaven) ; de Blas, Jorge (CAFPE, Granada ; Granada U., Theor. Phys. Astrophys. ; CERN) ; Durieux, Gauthier (CERN) ; Petrucciani, Giovanni (CERN) ; Savard, Pierre (Toronto U.) ; Berger, Nicolas (Annecy, LAPP) ; Contino, Roberto (Rome U.) ; Degrande, Céline (Louvain U., CP3) ; Falkowski, Adam (IJCLab, Orsay) et al.
The truncation of the standard-model effective field theory, its validity and the associated uncertainties have been discussed in meetings of the LHC EFT WG. Proposals were made by participants to address these issues. [...]
CERN-LHCEFTWG-2021-002; CERN-LPCC-2022-01; arXiv:2201.04974.-
21 - 8 p.
Fulltext: PDF; v2 draft: PDF;
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2.
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3.
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Automated one-loop computations in the SMEFT
/ Degrande, Céline (Louvain U., CP3) ; Durieux, Gauthier (Technion) ; Maltoni, Fabio (Louvain U., CP3 ; INFN, Bologna ; U. Bologna, DIFA) ; Mimasu, Ken (Louvain U., CP3) ; Vryonidou, Eleni (CERN) ; Zhang, Cen (Beijing, GUCAS ; Peking U., CHEP)
We present the automation of one-loop computations in the standard-model effective field theory at dimension six. Our general implementation, dubbed SMEFT@NLO, covers all types of operators: bosonic, two- and four-fermion ones. [...]
arXiv:2008.11743; CERN-TH-2020-140; CP3-20-42.-
2021-05-25 - 9 p.
- Published in : Phys. Rev. D 103 (2021) 096024
Article from SCOAP3: PDF; Fulltext: PDF;
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4.
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Proposal for the validation of Monte Carlo implementations of the standard model effective field theory
/ Durieux, Gauthier (ed.) (Technion) ; Brivio, Ilaria (ed.) (Bohr Inst. ; Heidelberg U.) ; Maltoni, Fabio (Louvain U., CP3 ; INFN, Bologna ; U. Bologna, DIFA) ; Trott, Michael (Bohr Inst.) ; Alioli, Simone (INFN, Milan Bicocca ; Milan Bicocca U.) ; Buckley, Andy (Glasgow U.) ; Chiesa, Mauro (Wurzburg U.) ; de Blas, Jorge (U. Padua, Dept. Phys. Astron. ; INFN, Padua) ; Dedes, Athanasios (Ioannina U.) ; Degrande, Céline (Louvain U., CP3) et al.
We propose a procedure to cross-validate Monte Carlo implementations of the standard model effective field theory. [...]
arXiv:1906.12310 ; CERN-LPCC-2019-02.
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2019. - 10 p.
Fulltext
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5.
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CEPC Conceptual Design Report: Volume 2 - Physics & Detector
/ CEPC Study Group Collaboration
The Circular Electron Positron Collider (CEPC) is a large international scientific facility proposed by the Chinese particle physics community to explore the Higgs boson and provide critical tests of the underlying fundamental physics principles of the Standard Model that might reveal new physics. [...]
arXiv:1811.10545 ; IHEP-CEPC-DR-2018-02 ; IHEP-EP-2018-01 ; IHEP-TH-2018-01.
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2018 - 424.
Fulltext
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6.
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A Monte Carlo global analysis of the Standard Model Effective Field Theory: the top quark sector
/ Hartland, Nathan P. (Vrije U., Amsterdam ; Nikhef, Amsterdam) ; Maltoni, Fabio (Louvain U., CP3 ; INFN, Bologna ; U. Bologna, DIFA) ; Nocera, Emanuele R. (Nikhef, Amsterdam ; U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Rojo, Juan (Vrije U., Amsterdam ; Nikhef, Amsterdam) ; Slade, Emma (Oxford U., Theor. Phys. ; Oxford U.) ; Vryonidou, Eleni (CERN) ; Zhang, Cen (Beijing, Inst. High Energy Phys.)
We present a novel framework for carrying out global analyses of the Standard Model Effective Field Theory (SMEFT) at dimension-six: SMEFiT. This approach is based on the Monte Carlo replica method for deriving a faithful estimate of the experimental and theoretical uncertainties and enables one to construct the probability distribution in the space of the SMEFT degrees of freedom. [...]
arXiv:1901.05965; OUTP-18-07P; Nikhef-2018-058; CP3-19-02; CERN-TH-2018-274.-
2019-04-15 - 76 p.
- Published in : JHEP 04 (2019) 100
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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7.
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Probing top-quark couplings indirectly at Higgs factories
/ Durieux, Gauthier (DESY) ; Gu, Jiayin (U. Mainz, PRISMA) ; Vryonidou, Eleni (CERN) ; Zhang, Cen (Beijing, GUCAS ; Beijing, Inst. High Energy Phys.)
We perform a global effective-field-theory analysis to assess the combined precision on Higgs couplings, triple gauge-boson couplings, and top-quark couplings, at future circular $e^+e^-$ colliders, with a focus on runs below the $t\bar t$ production threshold. Deviations in the top-quark sector entering as one-loop corrections are consistently taken into account in Higgs and diboson processes. [...]
arXiv:1809.03520; DESY-18-142; DESY 18-142; CERN-TH-2018-193; MITP/18-081.-
2018-11-27 - 13 p.
- Published in : Chin. Phys. C 42 (2018) 123107
Article from SCOAP3: PDF;
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8.
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Dimension-six electroweak top-loop effects in Higgs production and decay
/ Vryonidou, Eleni (CERN) ; Zhang, Cen (Beijing, Inst. High Energy Phys.)
We study the next-to-leading order electroweak corrections to Higgs processes from dimension-six top-quark operators in the Standard Model Effective Field Theory approach. We consider the major production channels, including $WH$, $ZH$, and VBF production at the LHC, and $ZH$, VBF production at future lepton colliders, as well as the major decay channels including $H\to \gamma\gamma, \gamma Z, Wl\nu,Zll,b\bar b,\mu\mu,\tau\tau$. [...]
arXiv:1804.09766; CERN-TH-2018-097.-
2018-08-09 - 38 p.
- Published in : JHEP 08 (2018) 036
Article from SCOAP3: PDF; Fulltext: arXiv:1804.09766 - PDF; 1804.09766 - PDF;
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9.
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Single-top associated production with a $Z$ or $H$ boson at the LHC: the SMEFT interpretation
/ Degrande, Celine (CERN) ; Maltoni, Fabio (Louvain U., CP3) ; Mimasu, Ken (Louvain U., CP3) ; Vryonidou, Eleni (CERN) ; Zhang, Cen (Beijing, Inst. High Energy Phys.)
At the LHC, top quarks can be produced singly with a sizeable rate via electroweak interactions. This process probes a limited set of top-quark electroweak couplings, i.e. [...]
arXiv:1804.07773; CERN-TH-2018-092.-
2018-10-01 - 29 p.
- Published in : JHEP 10 (2018) 005
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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