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Particle Physics

Group “Fundamental Interactions”

The particle physics team studies the basic constituents of matter and their fundamental interactions. Its members seek to understand the extent to which the so-called Standard Model of particle physics describes observation and explore theoretical scenarios for what may lie beyond. The main goal is to help uncover new fundamental particles and interactions. This work concerns processes observed in experiments, such the Large Hadron Collider (LHC) in Geneva, as well as the search for the Universe’s dark matter in experiments deep underground. Also concerned are properties of elementary particles, such as the anomalous magnetic moment of the muon, which are measured to very high precision. In complementary work, the team is interested in understanding how the strong interaction assembles quarks and gluons into hadrons, such as the proton and neutron, and how it determines these composite particles’ properties, decays and interactions. Besides explaining and predicting fundamental properties of matter, this work is also necessary for many of the searches for new fundamental physics described previously. In its work, the team develops and uses different theoretical approaches to describe particle interactions, for instance of quarks and gluons in quantum chromodynamics’ (QCD) highly non-linear regime, of hadrons at low energy or of non-relativistic dark matter particles. These approaches include a variety effective field theories and massively-parallel numerical simulations on supercomputers in lattice QCD.

The particle physics team is comprised of four permanent members, an emeritus and a comparable number of Ph.D. students and postdoctoral fellows. It also regularly welcomes visiting scientists from around the world.

Directory of Members

Bharucha Aoife Researcher
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Charles Jérôme Researcher
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Chiappetta Pierre University faculty
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De Rafael Eduardo Emeritus
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Knecht Marc Researcher
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Lellouch Laurent Researcher
Chef de l’équipe « Physique des particules »
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Parato Letizia PhD candidate

List of Publications

83 results
Journal article
Jérôme Charles, O. Deschamps, Sebastien Descotes-Genon, Valentin Niess
Isospin analysis of charmless B-meson decays
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2017, 77, pp.574. ⟨10.1140/epjc/s10052-017-5126-9⟩
Conference paper
L. Varnhorst, S. Durr, Z. Fodor, C. Hoelbling, S. Krieg, L. Lellouch, A. Portelli, A. Sastre, K. K. Szabo
Up and down quark masses and corrections to Dashen's theorem from lattice QCD and quenched QED
34th annual International Symposium on Lattice Field Theory, Jul 2017, Southampton, United Kingdom
Conference paper
Kohtaroh Miura, Szabolcs Borsanyi, Zoltan Fodor, Taichi Kawanai, Stefan Krieg, Laurent Lellouch, Rehan Malak, Kalman Szabo, Christian Torrero, B. C. Toth
Moments of the quark electromagnetic-current two-point function at the physical point: connected contributions
34th annual International Symposium on Lattice Field Theory (Lattice 2016), Jul 2017, Southampton, United Kingdom. pp.174 - 174
Journal article
Eduardo de Rafael
Hadronic vacuum polarization in QCD and its evaluation in Euclidean spacetime
Physical Review D, American Physical Society, 2017, 96 (1), pp.014510 ⟨10.1103/PhysRevD.96.014510⟩
Journal article
Nicolas Bizot, Michele Frigerio, Marc Knecht, Jean-Loïc Kneur
Non-perturbative analysis of the spectrum of meson resonances in an ultraviolet-complete composite-Higgs model
Physical Review D, American Physical Society, 2017, 95, pp.075006. ⟨10.1103/PhysRevD.95.075006 ⟩
Journal article
Jérôme Charles, Sebastien Descotes-Genon, Valentin Niess, Luiz Vale Silva
Modeling theoretical uncertainties in phenomenological analyses for particle physics
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2017, 77 (4), pp.214. ⟨10.1140/epjc/s10052-017-4767-z⟩
Journal article
Jérôme Charles, Sébastien Descotes-Genon, José Ocariz, Alejandro Pérez Pérez
Disentangling weak and strong interactions in B→K∗(→Kπ)π Dalitz-plot analyses
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2017, 77 (8), pp.561. ⟨10.1140/epjc/s10052-017-5133-x⟩
Journal article
Stephan Dürr, Zoltán Fodor, Christian Hoelbling, Stefan Krieg, Laurent Lellouch, Thomas Lippert, Thomas Rae, Andreas Schäfer, Enno E. Scholz, Kálmán K. Szabó, Lukas Varnhorst
Leptonic decay-constant ratio $f_K/f_\pi$ from lattice QCD using 2+1 clover-improved fermion flavors with 2-HEX smearing
Physical Review D, American Physical Society, 2017, 95 (5), pp.054513. ⟨10.1103/PhysRevD.95.054513⟩
Journal article
S. Aoki, Y. Aoki, D. Becirevic, C. Bernard, T. Blum, G. Colangelo, M. Della Morte, P. Dimopoulos, S. Dürr, H. Fukaya, M. Golterman, Steven Gottlieb, S. Hashimoto, U. M. Heller, R. Horsley, A. Jüttner, T. Kaneko, L. Lellouch, H. Leutwyler, C. -J. D. Lin, V. Lubicz, E. Lunghi, R. Mawhinney, T. Onogi, C. Pena, C. T. Sachrajda, S. R. Sharpe, S. Simula, R. Sommer, A. Vladikas, U. Wenger, H. Wittig
Review of lattice results concerning low-energy particle physics
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2017, 77 (2), pp.112. ⟨10.1140/epjc/s10052-016-4509-7⟩
Journal article
M. Beneke, Aoife Bharucha, Andrzej Hryczuk, S. Recksiegel, P. Ruiz Femenia
The last refuge of mixed wino-Higgsino dark matter
Journal of High Energy Physics, Springer Verlag (Germany), 2017, 2017 (1), pp.2. ⟨10.1007/JHEP01(2017)002⟩
83 results