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1.
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openQ*D code: a versatile tool for QCD+QED simulations
/ Campos, Isabel (Cantabria Inst. of Phys.) ; Fritzsch, Patrick (CERN) ; Hansen, Martin (INFN, Rome) ; Marinkovic, Marina Krstic (TCD, Dublin) ; Patella, Agostino (Humboldt U., Berlin) ; Ramos, Alberto (TCD, Dublin) ; Tantalo, Nazario (Rome U., Tor Vergata ; INFN, Rome)
/RC* Collaboration
We present the open-source package openQ*D-1.0, which has been primarily, but not uniquely, designed to perform lattice simulations of QCD+QED and QCD, with and without C* boundary conditions, and O(a) improved Wilson fermions. The use of C* boundary conditions in the spatial direction allows for a local and gauge-invariant formulation of QCD+QED in finite volume, and provides a theoretically clean setup to calculate isospin-breaking and radiative corrections to hadronic observables from first principles. [...]
arXiv:1908.11673; CERN-TH-2019-136.-
2020-03-03 - 41 p.
- Published in : Eur. Phys. J. C 80 (2020) 195
Article from SCOAP3: 88551ccc8063f247b799c8063ae2ca02 - PDFPDFA; scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF; External link: Article from SCOAP3
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2.
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Gauge invariant determination of charged hadron masses
/ Hansen, Martin (Southern Denmark U., CP3-Origins) ; Lucini, Biagio (Swansea U. (main)) ; Patella, Agostino (CERN ; Plymouth U.) ; Tantalo, Nazario (U. Rome 2, Tor Vergata (main) ; INFN, Rome2)
In this paper we show, for the first time, that charged-hadron masses can be calculated on the lattice without relying on gauge fixing at any stage of the calculations. In our simulations we follow a recent proposal and formulate full QCD+QED on a finite volume, without spoiling locality, by imposing C-periodic boundary conditions in the spatial directions. [...]
arXiv:1802.05474; CP3-Origins-2018-006; CERN-TH-2018-033; CP3-ORIGINS-2018-006.-
2018-05-23 - 17 p.
- Published in : JHEP 05 (2018) 146
Article from SCOAP3: scoap3-fulltext - PDF; scoap - PDF; Fulltext: PDF;
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3.
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openQ*D simulation code for QCD+QED
/ Campos, Isabel (Madrid, IFT ; Cantabria Inst. of Phys.) ; Fritzsch, Patrick (CERN) ; Hansen, Martin (Southern Denmark U., CP3-Origins) ; Marinković, Marina Krstić (CERN ; Trinity Coll., Dublin) ; Patella, Agostino (CERN ; Plymouth U., Math. Stat. Dept.) ; Ramos, Alberto (CERN) ; Tantalo, Nazario (Rome U., Tor Vergata ; INFN, Rome2)
The openQ*D code for the simulation of QCD+QED with C$^\star$ boundary conditions is presented. This code is based on openQCD-1.6, from which it inherits the core features that ensure its efficiency: the locally-deflated SAP-preconditioned GCR solver, the twisted-mass frequency splitting of the fermion action, the multilevel integrator, the 4th order OMF integrator, the SSE/AVX intrinsics, etc. [...]
arXiv:1710.08839; CERN-TH-2017-217.-
2018 - 16 p.
- Published in : EPJ Web Conf. 175 (2018) 09005
Fulltext: arXiv:1710.08839 - PDF; epjconf_lattice2018_09005 - PDF;
In : 35th International Symposium on Lattice Field Theory, Granada, Spain, 18 - 24 Jun 2017, pp.09005
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4.
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Simulations of QCD and QED with C* boundary conditions
/ Hansen, Martin (Southern Denmark U., CP3-Origins) ; Lucini, Biagio (Swansea U.) ; Patella, Agostino (CERN ; Plymouth U., Math. Stat. Dept. ; Pisa, Scuola Normale Superiore) ; Tantalo, Nazario (Rome U., Tor Vergata ; INFN, Rome2)
We present exploratory results from dynamical simulations of QCD in isolation, as well as QCD coupled to QED, with C* boundary conditions. In finite volume, the use of C* boundary conditions allows for a gauge invariant and local formulation of QED without zero modes. [...]
arXiv:1710.08838; CP3-ORIGINS-2017-046; CERN-TH-2017-214.-
2018 - 8 p.
- Published in : EPJ Web Conf. 175 (2018) 09001
Fulltext: arXiv:1710.08838 - PDF; epjconf_lattice2018_09001 - PDF;
In : 35th International Symposium on Lattice Field Theory, Granada, Spain, 18 - 24 Jun 2017, pp.09001
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5.
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Composite Higgs Dynamics on the Lattice
/ Pica, Claudio (Southern Denmark U., CP3-Origins ; U. Southern Denmark, Odense, DIAS) ; Drach, Vincent (CERN) ; Hansen, Martin (U. Southern Denmark, Odense, DIAS ; Southern Denmark U., CP3-Origins) ; Sannino, Francesco (U. Southern Denmark, Odense, DIAS ; Southern Denmark U., CP3-Origins)
We investigate the spectrum of the SU(2) gauge theory with $N_f$ = 2 flavors of fermions in the fundamental representation, in the continuum, using lattice simulations. This model provides a minimal template which has been used for different strongly coupled extensions of the Standard Model ranging from composite (Goldstone) Higgs models to intriguing types of dark matter candidates, such as the SIMPs. [...]
arXiv:1612.09336; CP3-ORIGINS-2016-058.-
2017 - 11 p.
- Published in : EPJ Web Conf. 137 (2017) 10005
Fulltext: arXiv:1612.09336 - PDF; epjconf_conf2017_10005 - PDF;
In : 12th Conference on Quark Confinement and the Hadron Spectrum (Confinement XII), Thessaloniki, Greece, 29 Aug - 2 Sep 2016, pp.10005
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6.
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Full text - Full text
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7.
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A simple method to optimize HMC performance
/ Bussone, Andrea (Southern Denmark U., CP3-Origins) ; Della Morte, Michele (Southern Denmark U., CP3-Origins) ; Drach, Vincent (CERN) ; Hansen, Martin (Southern Denmark U., CP3-Origins) ; Hietanen, Ari (Southern Denmark U., CP3-Origins) ; Rantaharju, Jarno (Southern Denmark U., CP3-Origins) ; Pica, Claudio (Southern Denmark U., CP3-Origins)
We present a practical strategy to optimize a set of Hybrid Monte Carlo parameters in simulations of QCD and QCD-like theories. We specialize to the case of mass-preconditioning, with multiple time-step Omelyan integrators. [...]
arXiv:1610.02860; CP3-Origins-2016-038.-
SISSA, 2016-10-24 - 7 p.
- Published in : PoS LATTICE2016 (2016) 260
Fulltext: arXiv:1610.02860 - PDF; PoS(LATTICE2016)260 - PDF; External link: Preprint
In : 34th International Symposium on Lattice Field Theory, Southampton, UK, 24 - 30 Jul 2016, pp.260
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8.
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SU(2) Gauge Theory with Two Fundamental Flavours: a Minimal Template for Model Building
/ Arthur, Rudy (Southern Denmark U., CP3-Origins ; U. Southern Denmark, Odense, DIAS) ; Drach, Vincent (CERN) ; Hansen, Martin (Southern Denmark U., CP3-Origins ; U. Southern Denmark, Odense, DIAS) ; Hietanen, Ari (Southern Denmark U., CP3-Origins ; U. Southern Denmark, Odense, DIAS) ; Pica, Claudio (Southern Denmark U., CP3-Origins ; U. Southern Denmark, Odense, DIAS) ; Sannino, Francesco (Southern Denmark U., CP3-Origins ; U. Southern Denmark, Odense, DIAS)
We investigate the continuum spectrum of the SU(2) gauge theory with $N_f=2$ flavours of fermions in the fundamental representation. This model provides a minimal template which is ideal for a wide class of Standard Model extensions featuring novel strong dynamics that range from composite (Goldstone) Higgs theories to several intriguing types of dark matter candidates, such as the SIMPs. [...]
CP3-ORIGINS-2016-006; DIAS-2016-6; CERN-TH-2016-037; arXiv:1602.06559; CP3-ORIGINS-2016-006 DNRF90; DIAS-2016-6; CERN-TH-2016-037.-
Geneva : CERN, 2016-11-29 - 17 p.
- Published in : Phys. Rev. D 94 (2016) 094507
APS Open Access article: PDF; Fulltext: PDF; Preprint: PDF; External link: Preprint
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