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Dr. Stefan Sint

Associate Professor (Pure & Applied Mathematics)
LLOYD INSTITUTE


  Mathematical Physics   Nuclear Physics   Numerical Analysis   Particle Physics   Physics   Quantum Mechanics   Quantum Physics   Theoretical Physics   Thermodynamics
 A strongly interacting electroweak symmetry breaking sector
 Unveiling physics beyond the Standard Model of elementary particle physics

Language Skill Reading Skill Writing Skill Speaking
English Fluent Fluent Fluent
French Fluent Fluent Fluent
German Fluent Fluent Fluent
Italian Medium Medium Medium
Russian Basic Basic Basic
Spanish Fluent Medium Fluent
Dalla Brida, M. and Fritzsch, P. and Korzec, T. and Ramos, A. and Sint, S. and Sommer, R., A non-perturbative exploration of the high energy regime in Nf= 3 QCD: ALPHA Collaboration, European Physical Journal C, 78, (5), 2018, Notes: [cited By 0], Journal Article, PUBLISHED  TARA - Full Text  DOI
Sint, S., Probing QCD perturbation theory at high energies with continuum extrapolated lattice data, EPJ Web of Conferences, XIIth Quark Confinement and the Hadron Spectrum , 137, (08014), 2017, 08014-, Notes: [cited By 0], Conference Paper, PUBLISHED  TARA - Full Text  DOI
Bruno, M. and Brida, M.D. and Fritzsch, P. and Korzec, T. and Ramos, A. and Schaefer, S. and Simma, H. and Sint, S. and Sommer, R., QCD Coupling from a Nonperturbative Determination of the Three-Flavor Î Parameter, Physical Review Letters, 119, (10), 2017, Notes: [cited By 3], Journal Article, PUBLISHED  DOI
Bruno, M. and Dalla Brida, M. and Fritzsch, P. and Korzec, T. and Ramos, A. and Schaefer, S. and Simma, H. and Sint, S. and Sommer, R., The determination of αsby the ALPHA collaboration, Nuclear and Particle Physics Proceedings, 285-286, 2017, p132-138 , Notes: [cited By 2], Journal Article, PUBLISHED  DOI
Dalla Brida, M. and Fritzsch, P. and Korzec, T. and Ramos, A. and Sint, S. and Sommer, R., Slow running of the gradient flow coupling from 200 MeV to 4 GeV inNf=3QCD, Physical Review D, 95, (1), 2017, Notes: [cited By 9], Journal Article, PUBLISHED  TARA - Full Text  DOI
Rubeo, A. and Sint, S., Perturbative O(a2) effects in gradient flow couplings with SF and SF-open boundary conditions, Part F128557, 2016, Notes: [cited By 0], Conference Paper, PUBLISHED
Bruno, M. and Dalla Brida, M. and Fritzsch, P. and Korzec, T. and Ramos, A. and Schaefer, S. and Simma, H. and Sint, S. and Sommer, R., The Π-parameter in 3-flavour QCD and αs(mZ) by the ALPHA collaboration, Part F128557, 2016, Notes: [cited By 0], Conference Paper, PUBLISHED
Dalla Brida M, Fritzsch P, Korzec T, Ramos A, Sint S, Sommer R, Determination of the QCD Î Parameter and the Accuracy of Perturbation Theory at High Energies, Physical Review Letters, 117, (18), 2016, p182001-, Notes: [Export Date: 6 January 2017], Journal Article, PUBLISHED  TARA - Full Text  DOI  URL
Brida M., Sint S., Vilaseca P., The chirally rotated Schrödinger functional: theoretical expectations and perturbative tests, Journal of High Energy Physics, 2016, (8), 2016, p102-, Journal Article, PUBLISHED  TARA - Full Text  DOI
Alberto Ramos, Stefan Sint, Symanzik Iimprovement of the gradient flow in lattice gauge theories, European Physical Journal C, 76, 2015, p15-, Journal Article, PUBLISHED  TARA - Full Text
  

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Mattia Dalla Brida, Patrick Fritzsch, Tomasz Korzec, Alberto Ramos, Stefan Sint and Rainer Sommer, A status update on the determination of Λ(Nf=3, MSbar) by the ALPHA collaboration, Proceedings of Science, The 33rd International Symposium on Lattice Field Theory, Kobe International Conference Center, Kobe, Japan , July 14-18, 2015, , PoS(LATTICE 2015)248, 2015, pp1 - 7, Conference Paper, SUBMITTED
Anthony D. Kennedy, Stefan Sint, Renormalizability of the Schroedinger functional, Proceedings of Science, The 33rd International Symposium on Lattice Field Theory, Kobe International Conference Center, Kobe, Japan, July 14-18, 2015, 274, 2015, pp7 , Conference Paper, SUBMITTED
Alberto Ramos, Stefan Sint, On O(a, 2) effects in gradient flow observables, Proceedings of Science, 32nd International Symposium on Lattice Field Theory (Lattice 2014), Columbia University, New York, USA, June, 23-28, 2014, PoS(LATTICE2014)329, 2014, pp7 , Conference Paper, PUBLISHED
Stefan Sint, Pol Vilaseca, A perturbative study of the chirally rotated Schroedinger functional in QCD, Proceedings of Science, 32nd International Symposium on Lattice Field Theory (Lattice 2014), Columbia University, New York, USA, June 23-28, 2014, PoS(LATTICE2014)279, 2014, pp7 , Conference Paper, PUBLISHED
Mattia Dalla Brida, Stefan Sint, A dynamical study of the chirally rotated Schroedinger functional in QCD, Proceedings of Science, 32nd International Symposium on Lattice Field Theory (Lattice 2014), Columbia University, New York, USA, June 23-28, 2014, PoS(LATTICE2014)280, 2014, pp7 , Conference Paper, PUBLISHED
Mattia Dalla Brida, Patrick Fritzsch, Tomasz Korzec, Alberto Ramos, Stefan Sint and Rainer Sommer, Towards a new determination of the QCD Lambda parameter from running couplings in the three-flavour theory, Proceedings of Science, 32nd International Symposium on Lattice Field Theory (Lattice 2014), Columbia University, New York, USA, June 23-28, 2014, , PoS(LATTICE2014)291, 2014, pp7 , Conference Paper, PUBLISHED
Michele Brambilla, Mattia Dalla Brida, Francesco Di Renzo, Dirk Hesse, Stefan Sint, Numerical Stochastic Perturbation Theory in the Schroedinger Functional, Proceedings of Science (PoS), Lattice 2013, Mainz, Germany, 29 Jul - 03 Aug 2013, 2013, pp7 , Conference Paper, PUBLISHED
Stefan Sint, Pol Vilaseca, Lattice artefacts in the Schroedinger Functional coupling for strongly interacting theories, Proceedings of Science (PoS), Lattice 2012, Cairns, Australia, 24-29 Jun 2012, 2012, pp7 , Conference Paper, PUBLISHED
Stefan Sint, Pol Vilaseca, Perturbative lattice artefacts in the SF coupling for technicolor-inspired models , Proceedings of Science (PoS), Lattice 2011, Squaw Valley, Lake Tahoe, California, USA, 10-16 Jul 2011, edited by Pavlos Vranas , 2011, pp7 , Conference Paper, PUBLISHED
Bjorn Leder, Stefan Sint, Testing universality and automatic O(a) improvement in massless lattice QCD with Wilson quarks, Proceedings of Science, Lattice 2010, Villasimius, Italy, June 14-19, 2010, 265, 2010, pp7 , Notes: [order of authors is alphabetical], Conference Paper, PUBLISHED

  

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My basic research interests are in Elementary Particle Physics, lattice QCD and Statistical Mechanics. However, the techniques used include numerical simulations, high performance parallel computing, Markov Chain Monte Carlo, Molecular Dynamics and Hybrid Monte Carlo methods. There is a continued interest in improving the numerical tools needed, such as preconditioning methods for large sparse matrix inversions and variance reduction techniques.