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1.
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Progress in generating gauge ensembles with Stabilized Wilson Fermions
/ Francis, Anthony (NYCU, Hsinchu) ; Cuteri, Francesca (Frankfurt U.) ; Fritzsch, Patrick (TCD, Dublin) ; Pederiva, Giovanni (Julich, Forschungszentrum) ; Rago, Antonio (Odense U. ; CERN) ; Shindler, Andrea (RWTH Aachen U.) ; Walker-Loud, Andre (LBNL, Berkeley) ; Zafeiropoulos, Savvas (Marseille, CPT)
The continued generation of $N_f=2+1$ quark flavor gauge configurations using stabilized Wilson fermions by the open lattice initiative (OpenLat) is reported. We present the status of our ongoing production and show updates on increasing statistics at the four lattice spacings $a=0.12, 0.094, 0.077$ and $0.064$ fm. [...]
arXiv:2312.11298.-
2023-12-27 - 9 p.
- Published in : PoS: LATTICE2023 (2024) , pp. 048
Fulltext: document - PDF; 2312.11298 - PDF;
In : 40th International Symposium on Lattice Field Theory (Lattice 2023), Fermilab, Batavia, IL, United States, 30 Jul - 5 Aug 2023, pp.048
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2.
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Shapes and sizes of diquarks in lattice QCD
/ Francis, Anthony (NYCU, Hsinchu) ; de Forcrand, Philippe (CERN) ; Lewis, Randy (York U., Toronto (main)) ; Maltman, Kim (York U., Toronto (main) ; Adelaide U., Sch. Chem. Phys.)
The idea of diquarks as effective degrees of freedom in QCD has been a successful concept in explaining observed hadron spectra. Recently they have also played an important role in studying doubly heavy tetraquarks in phenomenology and on the lattice. [...]
2022 - 6 p.
- Published in : PoS: ICHEP2022, pp. 795
Fulltext: PDF;
In : 41st International Conference on High Energy Physics (ICHEP 2022), Bologna, Italy, 6 - 13 Jul 2022, pp.795
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3.
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Hadronic observables from master-field simulations
/ Cè, Marco (Bern U.) ; Bruno, Mattia (Milan Bicocca U. ; INFN, Milan Bicocca) ; Bulava, John (DESY, Zeuthen) ; Francis, Anthony (NYCU, Hsinchu) ; Fritzsch, Patrick (Trinity Coll., Dublin ; Hamilton Math. Inst., Dublin) ; Green, Jeremy R. (DESY, Zeuthen) ; Hansen, Maxwell T. (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Rago, Antonio (Southern Denmark U., CP3-Origins ; CERN)
Substantial progress has been made recently in the generation of master-field ensembles. This has to be paired with efficient techniques to compute observables on gauge field configurations with a large volume. [...]
arXiv:2301.05156; DESY-22-207; CERN-TH-2022-215.-
2023-01-27 - 10 p.
- Published in : PoS LATTICE2022 (2023) 052
Fulltext: document - PDF; 2301.05156 - PDF;
In : 39th International Symposium on Lattice Field Theory (Lattice 2022), Bonn, Germany, 8 - 13 Aug 2022, pp.052
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4.
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Lattice Evidence for Bound Heavy Tetraquarks
/ Francis, Anthony (CERN) ; Hudspith, Renwick J (York U., Canada) ; Lewis, Randy (York U., Canada) ; Maltman, Kim (York U., Canada ; Adelaide U., Sch. Chem. Phys.)
We investigate the possibility of $qq'\bar{Q}\bar{Q}'$ tetraquark bound states using $n_f = 2 + 1$ lattice QCD with pion masses $\simeq 164, 299$ and 415 MeV. Two types of lattice interpolating operator are chosen, reflecting first diquarkantidiquark and second meson-meson structure. [...]
2019 - 6 p.
- Published in : EPJ Web Conf. 202 (2019) 06013
Fulltext: PDF;
In : The 9th International Workshop on Charm Physics (CHARM 2018), Novosibirsk, Russian Federation, 21 - 25 May 2018, pp.06013
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5.
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Ruling out some predictions of deeply-bound light-heavy tetraquarks using lattice QCD
/ Colquhoun, Brian (York U., Canada) ; Francis, Anthony (U. Bern, AEC ; CERN ; NYCU, Hsinchu) ; Hudspith, Renwick (Mainz U., Inst. Kernphys. ; U. Mainz, PRISMA) ; Lewis, Randy (York U., Canada) ; Maltman, Kim (York U., Toronto (main) ; Adelaide U., Sch. Chem. Phys.)
We discuss our lattice QCD calculations of a number of tetraquark channels with at least one heavy quark where some phenomenological models, already fully constrained by fits to the ordinary meson and baryon spectrum, predict deep binding. We find no evidence of deeply-bound tetraquarks, except in previously established strong-interaction stable $I=0$, $J^P=1^+$, $ud\bar{b}\bar{b}$ and $I=1/2$, $J^P=1^+$ $\ell s\bar{b}\bar{b}$ (where $\ell=u/d$) channels, allowing us to rule out models predicting deep binding. [...]
2022 - 5 p.
- Published in : Rev. Mex. Fis. Suppl. 3 (2022) 0308044
Fulltext: PDF;
In : XIX International Conference on Hadron Spectroscopy and Structure (Hadron 2021), Mexico City, Mexico, 26 Jul - 1 Aug 2021, pp.0308044
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6.
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Substructure of Multiquark Hadrons (Snowmass 2021 White Paper)
/ Brambilla, Nora (Munich, Tech. U. ; TUM-IAS, Munich ; MCQST, Munich) ; Chen, Hua-Xing (Southeast U., Nanjing) ; Esposito, Angelo (Princeton, Inst. Advanced Study) ; Ferretti, Jacopo (Jyvaskyla U.) ; Francis, Anthony (Bern U. ; Taiwan, Natl. Chiao Tung U. ; CERN) ; Guo, Feng-Kun (Beijing, Inst. Theor. Phys. ; Beijing, GUCAS) ; Hanhart, Christoph (Julich, Forschungszentrum) ; Hosaka, Atsushi (Osaka U., Res. Ctr. Nucl. Phys.) ; Jaffe, Robert L. (MIT) ; Karliner, Marek (Tel Aviv U.) et al.
In recent years there has been a rapidly growing body of experimental evidence for existence of exotic, multiquark hadrons, i.e. [...]
arXiv:2203.16583.
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47 p.
eConf - Fulltext
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7.
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Quantum Computing for Data Analysis in High-Energy Physics
/ Delgado, Andrea (Oak Ridge) ; Hamilton, Kathleen E. (Oak Ridge) ; Date, Prasanna (Oak Ridge) ; Vlimant, Jean-Roch (Caltech) ; Magano, Duarte (Lisbon U.) ; Omar, Yasser (Lisbon U.) ; Bargassa, Pedrame (LIP, Lisbon) ; Francis, Anthony (NYCU, Hsinchu ; CERN) ; Gianelle, Alessio (INFN, Padua) ; Sestini, Lorenzo (INFN, Padua) et al.
Some of the biggest achievements of the modern era of particle physics, such as the discovery of the Higgs boson, have been made possible by the tremendous effort in building and operating large-scale experiments like the Large Hadron Collider or the Tevatron. [...]
arXiv:2203.08805.
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23.
eConf - Fulltext
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8.
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Hadron Spectroscopy with Lattice QCD
/ Bulava, John (DESY, Zeuthen) ; Briceño, Raúl (Jefferson Lab ; Old Dominion U.) ; Detmold, William (MIT, Cambridge, CTP ; IAIFI, Cambridge) ; Döring, Michael (George Washington U. ; Jefferson Lab) ; Edwards, Robert G. (Jefferson Lab) ; Francis, Anthony (Bern U. ; Taiwan, Natl. Chiao Tung U. ; CERN) ; Knechtli, Francesco (Wuppertal U.) ; Lewis, Randy (York U., Canada) ; Prelovsek, Sasa (Ljubljana U. ; Stefan Inst., Ljubljana) ; Ryan, Sinéad M. (TCD, Dublin) et al.
The status and prospects for investigations of exotic and conventional hadrons with lattice QCD are discussed. [...]
arXiv:2203.03230 ; FERMILAB-FN-1149-T.
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35 p.
Fermilab Library Server - eConf - Fulltext - Fulltext
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9.
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Properties, ensembles and hadron spectra with Stabilised Wilson Fermions
/ Francis, Anthony Sebastian (U. Bern, AEC ; NYCU, Hsinchu ; CERN) ; Cuteri, Francesca (Frankfurt U.) ; Fritzsch, Patrick (Trinity Coll., Dublin) ; Pederiva, Giovanni (Michigan State U.) ; Rago, Antonio (Plymouth U. ; CERN) ; Shindler, Andrea (Michigan State U.) ; Walker-Loud, Andre (LBNL, NSD) ; Zafeiropoulos, Savvas (Marseille, CPT)
In this joint contribution we announce the formation of the "OPEN LATtice initiative", https://openlat1.gitlab.io, to study Stabilised Wilson Fermions (SWF). They are a new avenue for QCD calculations with Wilson-type fermions and we report results on our continued study of this framework: Tuning the clover improvement coefficient, and extending the reach of lattice spacings to $a=0.12$ fm. [...]
arXiv:2201.03874.-
2022-05-16 - 18 p.
- Published in : PoS: LATTICE2021 (2022) , pp. 118
Fulltext: 2201.03874 - PDF; document - PDF;
In : 38th International Symposium on Lattice Field Theory, Online, 26 - 30 Jul 2021, pp.118
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10.
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Good and bad diquark properties and spatial correlations in lattice QCD
/ Francis, Anthony (Bern U. ; CERN ; Taiwan, Natl. Chiao Tung U.) ; de Forcrand, Ph. (CERN) ; Lewis, Randy (York U., Canada) ; Maltman, Kim (York U., Canada ; Adelaide U.)
We study good, bad and not-even-bad diquarks on the lattice in a gauge-invariant formalism in full QCD. We establish their spectral masses with short extrapolations to the physical point, observing agreement with phenomenological expectations. [...]
arXiv:2201.03332; CERN-TH-2021-223.-
2022-05-19 - 5 p.
- Published in : Rev. Mex. Fis. Suppl.: 3 (2022) , no. 3, pp. 0308082
Fulltext: document - PDF; 2201.03332 - PDF;
In : XIX International Conference on Hadron Spectroscopy and Structure (Hadron 2021), Mexico City, Mexico, 26 Jul - 1 Aug 2021, pp.0308082
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