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Advances in Multi-Variate Analysis Methods for New Physics Searches at the Large Hadron Collider
/ Stakia, Anna (Democritos Nucl. Res. Ctr. ; CERN) ; Dorigo, Tommaso (INFN, Padua) ; Banelli, Giovanni (Munich, Tech. U.) ; Bortoletto, Daniela (Oxford U.) ; Casa, Alessandro (University Coll., Dublin ; U. Padua (main)) ; de Castro, Pablo (INFN, Padua ; Padua U.) ; Delaere, Christophe (Louvain U., CP3) ; Donini, Julien (Clermont-Ferrand U.) ; Finos, Livio (U. Padua (main)) ; Gallinaro, Michele (LIP, Lisbon) et al.
Between the years 2015 and 2019, members of the Horizon 2020-funded Innovative Training Network named "AMVA4NewPhysics" studied the customization and application of advanced multivariate analysis methods and statistical learning tools to high-energy physics problems, as well as developed entirely new ones. Many of those methods were successfully used to improve the sensitivity of data analyses performed by the ATLAS and CMS experiments at the CERN Large Hadron Collider; several others, still in the testing phase, promise to further improve the precision of measurements of fundamental physics parameters and the reach of searches for new phenomena. [...]
arXiv:2105.07530.-
2021-12 - 36 p.
- Published in : Rev. Phys. 7 (2021) 100063
Fulltext: 2105.07530 - PDF; 1-s2.0-S2405428321000095-main - PDF;
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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.
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Beyond the Standard Model in Vector Boson Scattering Signatures
/ Gallinaro, Michele (LIP, Lisbon) ; Long, Kenneth (CERN) ; Reuter, Jurgen (DESY) ; Ruiz, Richard (Louvain U., CP3) ; Bachas, Dinos (Aristotle U., Thessaloniki) ; Barak, Liron (Tel Aviv U.) ; Bishara, Fady (DESY) ; Brivio, Ilaria (U. Heidelberg, ITP) ; Buarque Franzosi, Diogo (Chalmers U. Tech.) ; Cacciapaglia, Giacomo (IP2I, Lyon ; Lyon U.) et al.
The high-energy scattering of massive electroweak bosons, known as vector boson scattering (VBS), is a sensitive probe of new physics. [...]
arXiv:2005.09889 ; DESY-PROC-2020-002 ; ISBN 978-3-945931-33-2 ; ISSN 1435-8077, CP3-20-17 ; VBSCAN-PUB-04-20.
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16 p.
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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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Interpreting top-quark LHC measurements in the standard-model effective field theory
/ Aguilar-Saavedra, Juan Antonio (ed.) (Granada U., Theor. Phys. Astrophys.) ; Degrande, C. (ed.) (CERN) ; Durieux, G. (ed.) (DESY) ; Maltoni, F. (ed.) (Louvain U., CP3) ; Vryonidou, E. (ed.) (CERN) ; Zhang, C. (ed.) (Beijing, Inst. High Energy Phys.) ; Barducci, D. (INFN, Trieste ; SISSA, Trieste) ; Brivio, I. (Bohr Inst.) ; Cirigliano, V. (Los Alamos) ; Dekens, W. (Los Alamos ; Cray Research, Los Alamos) et al.
This note proposes common standards and prescriptions for the effective-field-theory interpretation of top-quark measurements at the LHC..
arXiv:1802.07237 ; CERN-LPCC-2018-01.
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2018. - 50 p.
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Toward the end-to-end optimization of particle physics instruments with differentiable programming
/ MODE Collaboration
The full optimization of the design and operation of instruments whose functioning relies on the interaction of radiation with matter is a super-human task, given the large dimensionality of the space of possible choices for geometry, detection technology, materials, data-acquisition, and information-extraction techniques, and the interdependence of the related parameters. On the other hand, massive potential gains in performance over standard, "experience-driven" layouts are in principle within our reach if an objective function fully aligned with the final goals of the instrument is maximized by means of a systematic search of the configuration space. [...]
arXiv:2203.13818.-
2023-05-25 - 56 p.
- Published in : Rev. Phys. 10 (2023) 100085
Fulltext: 2203.13818 - PDF; Publication - PDF;
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An analytic solution for the equal-mass banana graph
/ Broedel, Johannes (Humboldt U., Berlin) ; Duhr, Claude (CERN ; Louvain U., CP3) ; Dulat, Falko (SLAC) ; Marzucca, Robin (Louvain U., CP3) ; Penante, Brenda (CERN) ; Tancredi, Lorenzo (CERN)
We present fully analytic results for all master integrals for the three-loop banana graph with four equal and non-zero masses. The results are remarkably simple and all integrals are expressed as linear combinations of iterated integrals of modular forms of uniform weight for the same congruence subgroup as for the two-loop equal-mass sunrise graph. [...]
arXiv:1907.03787; CP3-19-34; CERN-TH-2019-105; HU-Mathematik-2019-04; HU-EP-19/20, SLAC-PUB-17453; HU-EP-19/20,
SLAC-PUB-17453.-
2019-09-16 - 36 p.
- Published in : JHEP 1909 (2019) 112
Article from SCOAP3: PDF; Fulltext: PDF;
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New physics searches with heavy-ion collisions at the LHC
/ Bruce, Roderik (CERN) ; d'Enterria, David (CERN) ; de Roeck, Albert (CERN) ; Drewes, Marco (Louvain U., CP3) ; Farrar, Glennys R. (New York U., CCPP) ; Giammanco, Andrea (Louvain U., CP3) ; Gould, Oliver (Helsinki U.) ; Hajer, Jan (Louvain U., CP3) ; Harland-Lang, Lucian (Oxford U.) ; Heisig, Jan (Louvain U., CP3) et al.
This document summarises proposed searches for new physics accessible in the heavy-ion mode at the CERN Large Hadron Collider (LHC), both through hadronic and ultraperipheral $\gamma\gamma$ interactions, and that have a competitive or, even, unique discovery potential compared to standard proton-proton collision studies. Illustrative examples include searches for new particles -- such as axion-like pseudoscalars, radions, magnetic monopoles, new long-lived particles, dark photons, and sexaquarks as dark matter candidates -- as well as new interactions, such as non-linear or non-commutative QED extensions. [...]
arXiv:1812.07688.-
2020-05-19 - 20 p.
- Published in : J. Phys. G 47 (2020) 060501
Fulltext: fulltext1709994 - PDF; 1812.07688 - PDF; Fulltext from publisher: PDF;
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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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