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Phase Transitions in Particle Physics - Results and Perspectives from Lattice Quantum Chromo-Dynamics
/ Aarts, Gert (Swansea U. ; ECT, Trento ; Fond. Bruno Kessler, Trento) ; Aichelin, Joerg (SUBATECH, Nantes) ; Allton, Chris (Swansea U.) ; Athenodorou, Andreas (INFN, Pisa ; Cyprus Inst.) ; Bachtis, Dimitrios (Swansea U., Math. Dept.) ; Bonanno, Claudio (INFN, Florence ; Madrid, IFT ; Madrid, Autonoma U.) ; Brambilla, Nora (Munich, Tech. U.) ; Bratkovskaya, Elena (Darmstadt, GSI ; Frankfurt U. ; Helmholtz Res. Acad. Hesse for FAIR) ; Bruno, Mattia (Milan Bicocca U. ; INFN, Milan Bicocca) ; Caselle, Michele (Turin U.) et al.
Phase transitions in a non-perturbative regime can be studied by ab initio Lattice Field Theory methods. The status and future research directions for LFT investigations of Quantum Chromo-Dynamics under extreme conditions are reviewed, including properties of hadrons and of the hypothesized QCD axion as inferred from QCD topology in different phases. [...]
arXiv:2301.04382.-
2023-07-20 - 94 p.
- Published in : Prog. Part. Nucl. Phys. 133 (2023) 104070
Fulltext: PDF;
In : Axions across boundaries between Particle Physics, Astrophysics, Cosmology and forefront Detection Technologies, Florence, Italy, 26 Apr - 9 Jun 2023
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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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Precision Tests and Fine Tuning in Twin Higgs Models
/ Contino, Roberto (Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Greco, Davide (ITPP, Lausanne) ; Mahbubani, Rakhi (CERN) ; Rattazzi, Riccardo (EPFL, Lausanne, LPTP) ; Torre, Riccardo (ITPP, Lausanne)
We analyze the parametric structure of Twin Higgs (TH) theories and assess the gain in fine tuning which they enable compared to extensions of the Standard Model with colored top partners. Estimates show that, at least in the simplest realizations of the TH idea, the separation between the mass of new colored particles and the electroweak scale is controlled by the coupling strength of the underlying UV theory, and that a parametric gain is achieved only for strongly-coupled dynamics. [...]
CERN-TH-2017-026; arXiv:1702.00797.-
2017-11-29 - 31 p.
- Published in : Phys. Rev. D 96 (2017) 095036
Fulltext: PDF; Preprint: PDF;
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On the Validity of the Effective Field Theory Approach to SM Precision Tests
/ Contino, Roberto (ITPP, Lausanne ; CERN) ; Falkowski, Adam (Orsay, LPT) ; Goertz, Florian (CERN) ; Grojean, Christophe (DESY) ; Riva, Francesco (CERN)
We discuss the conditions for an effective field theory (EFT) to give an adequate low-energy description of an underlying physics beyond the Standard Model (SM). Starting from the EFT where the SM is extended by dimension-6 operators, experimental data can be used without further assumptions to measure (or set limits on) the EFT parameters. [...]
arXiv:1604.06444; DESY-16-067; CERN-TH-2016-082; LPT-Orsay-16-32; CERN-TH-2016-082.-
Geneva Geneva : CERN, CERN, 2016-07-28 - 26 p.
- Published in : JHEP 07 (2016) 144
Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF;
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eHDECAY: an Implementation of the Higgs Effective Lagrangian into HDECAY
/ Contino, Roberto (IPT, Lausanne ; CERN) ; Ghezzi, Margherita (Turin U. ; INFN, Turin ; Rome U. ; INFN, Rome) ; Grojean, Christophe (Barcelona, IFAE) ; Mühlleitner, Margarete (KIT, Karlsruhe) ; Spira, Michael (PSI, Villigen)
We present eHDECAY, a modified version of the program HDECAY which includes the full list of leading bosonic operators of the Higgs effective Lagrangian with a linear or non-linear realization of the electroweak symmetry and implements two benchmark composite Higgs models..
arXiv:1403.3381; CERN-PH-TH-2013-316; KA-TP-03-2014; PSI-PR-13-20; CERN-PH-TH-2013-316; KA-TP-03-2014; PSI-PR-13-20.-
2014-06-09 - 12 p.
- Published in : Comput. Phys. Commun. 185 (2014) 3412-3423
Fulltext: PDF; External link: Preprint
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