Particle physics at the TeV scale and beyond: models and interpretations

• Grant number: 14/21477-2
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: April 01, 2015
• End date: October 01, 2020
• Field of knowledge: Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
• Principal Investigator: Rogério Rosenfeld
• Grantee: Sylvain Pierre Joseph Fichet
• Host Institution: Instituto de Física Teórica (IFT). Universidade Estadual Paulista (UNESP). Campus de São Paulo. São Paulo , SP, Brazil
• Associated research grant: 16/01343-7 - ICTP South American Institute for Fundamental Research: a regional center for theoretical physics, AP.ESP
• Associated scholarship(s): 18/11721-4 - Particle physics and Gravity Beyond the Standard Model: Warped structures, Chameleons and Holography, BE.EP.PD

Abstract

This research project lies in the area of particle physics. The primordial purpose of particle physics is to probe and understand matter and spacetime at distances as small as possible, i.e. at very high energies. Up to now, Nature is well described by the Standard Model of Particle Physics, up to an energy scale of about 1 TeV (1018 m). However, many enigmas accompany the Standard Model, so that it seems unavoidable that new and more fundamental physics near the TeV-scale still remains to be discovered.My research project aims at contributing significantly to our understanding of Physics Beyond the Standard Model, both on the theory and the phenomenology sides. My line of formal research includes the study of higher-spin theories, renormalization flow in compact extra-dimensions, and the building of realistic theories extending the Standard Model. For the latter, I am interested in all existing ideas including supersymmetry, Grand Unification, extra-dimensions and branes, as well as in new ideas like graded gauge theories. Closer to LHC physics, I work on confronting models against the existing data, in particular by using effective Lagrangians. I am particularly focused on simulations of light-by-light scattering for the upgraded LHC, that we found to be sensitive to phenomena like a strongly-interacting dilaton, magnetic monopoles and warped KK gravitons. Finally, I also work on developing new statistical methods and tools, as I believe such tools are crucial for the upcoming LHC analysis, including Higgs precision physics. (AU)

Scientific publications

(39)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

FICHET, SYLVAIN; TONERO, ALBERTO; TELES, PATRICIA REBELLO. Sharpening the shape analysis for higher-dimensional operator searches. Physical Review D, v. 96, n. 3, AUG 3 2017. (11/11973-4, 14/21477-2)

FICHET, SYLVAIN; VON GERSDORFF, GERO; PONTON, EDUARDO; ROSENFELD, ROGERIO. The excitation of the global symmetry-breaking vacuum in composite Higgs models. Journal of High Energy Physics, n. 9, SEP 27 2016. (14/21477-2)

BRAX, PHILIPPE; FICHET, SYLVAIN; PIGNOL, GUILLAUME. Bounding quantum dark forces. Physical Review D, v. 97, n. 11, JUN 20 2018. (14/21477-2)

BUCKLEY, ANDY; CITRON, MATTHEW; FICHET, SYLVAIN; KRAML, SABINE; WALTENBERGER, WOLFGANG; WARDLE, NICHOLAS. The simplified likelihood framework. Journal of High Energy Physics, n. 4, APR 8 2019. (18/11721-4, 14/21477-2)

FICHET, SYLVAIN. Shining light on polarizable dark particles. Journal of High Energy Physics, n. 4, APR 14 2017. (14/21477-2)

FICHE, SYLVAIN. Opacity and effective field theory in anti-de Sitter backgrounds. Physical Review D, v. 100, n. 9, NOV 4 2019. (18/11721-4, 14/21477-2)

FICHET, SYLVAIN. Quantum Forces from Dark Matter and Where to Find Them. Physical Review Letters, v. 120, n. 13, MAR 27 2018. (14/21477-2)

FICHET, SYLVAIN. On holography in general background and the boundary effective action from AdS to dS. Journal of High Energy Physics, v. N/A, n. 7, p. 80-pg., 2022-07-19. (18/11721-4, 14/21477-2)

COSTANTINO, ALEXANDRIA; FICHET, SYLVAIN; TANEDO, PHILIP. Effective field theory in AdS: Continuum regime, soft bombs, and IR emergence. PHYSICAL REVIEW D, v. 102, n. 11, p. 16-pg., 2020-12-29. (18/11721-4, 14/21477-2)

BRAX, PHILIPPE; FICHET, SYLVAIN; PIGNOL, GUILLAUME. Bounding quantum dark forces. PHYSICAL REVIEW D, v. 97, n. 11, p. 17-pg., 2018-06-20. (14/21477-2)

BALDENEGRO, C.; FICHET, S.; VON GERSDORFF, G.; ROYON, C.. Probing the anomalous gamma gamma gamma Z coupling at the LHC with proton tagging. Journal of High Energy Physics, v. N/A, n. 6, p. 19-pg., 2017-06-27. (14/21477-2)

BUCKLEY, ANDY; CITRON, MATTHEW; FICHET, SYLVAIN; KRAML, SABINE; WALTENBERGER, WOLFGANG; WARDLE, NICHOLAS. The simplified likelihood framework. Journal of High Energy Physics, v. N/A, n. 4, p. 27-pg., 2019-04-08. (18/11721-4, 14/21477-2)

FICHET, SYLVAIN; MEGIAS, EUGENIO; QUIROS, MARIANO. Continuum effective field theories, gravity, and holography. PHYSICAL REVIEW D, v. 107, n. 9, p. 27-pg., 2023-05-19. (18/11721-4, 16/01343-7, 14/21477-2)

FICHET, SYLVAIN; TONERO, ALBERTO; TELES, PATRICIA REBELLO. Sharpening the shape analysis for higher-dimensional operator searches. PHYSICAL REVIEW D, v. 96, n. 3, p. 13-pg., 2017-08-03. (11/11973-4, 14/21477-2)

FICHET, SYLVAIN. Braneworld effective field theories - holography, consistency and conformal effects. Journal of High Energy Physics, v. N/A, n. 4, p. 33-pg., 2020-04-03. (18/11721-4, 14/21477-2)

FICHE, SYLVAIN. Opacity and effective field theory in anti-de Sitter backgrounds. PHYSICAL REVIEW D, v. 100, n. 9, p. 17-pg., 2019-11-04. (18/11721-4, 14/21477-2)

FICHET, SYLVAIN; SARASWAT, PRASHANT. Approximate symmetries and gravity. Journal of High Energy Physics, v. N/A, n. 1, p. 44-pg., 2020-01-15. (18/11721-4, 14/21477-2)

FICHET, SYLVAIN; VON GERSDORFF, GERO; PONTON, EDUARDO; ROSENFELD, ROGERIO. The excitation of the global symmetry-breaking vacuum in composite Higgs models. Journal of High Energy Physics, v. N/A, n. 9, p. 29-pg., 2016-09-27. (14/21477-2)

BRAX, PHILIPPE; FICHET, SYLVAIN. Quantum chameleons. Physical Review D, v. 99, n. 10, MAY 20 2019. (18/11721-4, 14/21477-2)

FICHET, SYLVAIN; VON GERSDORFF, GERO; PONTON, EDUARDO; ROSENFELD, ROGERIO. The global Higgs as a signal for compositeness at the LHC. Journal of High Energy Physics, n. 1, JAN 3 2017. (14/21477-2)

ARBEY, ALEXANDRE; FICHET, SYLVAIN; MAHMOUDI, FARVAH; MOREAU, GREGORY. The correlation matrix of Higgs rates at the LHC. Journal of High Energy Physics, n. 11, NOV 17 2016. (14/21477-2)

BALDENEGRO, C.; FICHET, S.; VON GERSDORFF, G.; ROYON, C.. Searching for axion-like particles with proton tagging at the LHC. Journal of High Energy Physics, n. 6, JUN 25 2018. (14/21477-2)

BALDENEGRO, C.; FICHET, S.; VON GERSDORFF, G.; ROYON, C.. Probing the anomalous gamma gamma gamma Z coupling at the LHC with proton tagging. Journal of High Energy Physics, n. 6, JUN 27 2017. (14/21477-2)

FICHET, SYLVAIN; SARASWAT, PRASHANT. Approximate symmetries and gravity. Journal of High Energy Physics, n. 1, JAN 15 2020. (18/11721-4, 14/21477-2)

COSTANTINO, ALEXANDRIA; FICHET, SYLVAIN; TANEDO, PHILIP. Exotic spin-dependent forces from a hidden sector. Journal of High Energy Physics, n. 3, MAR 25 2020. (18/11721-4, 14/21477-2)

FICHET, SYLVAIN. Braneworld effective field theories - holography, consistency and conformal effects. Journal of High Energy Physics, n. 4, APR 3 2020. (18/11721-4, 14/21477-2)

COSTANTINO, ALEXANDRIA; FICHET, SYLVAIN; TANEDO, PHILIP. Effective field theory in AdS: Continuum regime, soft bombs, and IR emergence. Physical Review D, v. 102, n. 11, DEC 29 2020. (18/11721-4, 14/21477-2)

COSTANTINO, ALEXANDRIA; FICHET, SYLVAIN. Opacity from Loops in AdS. Journal of High Energy Physics, n. 2, FEB 10 2021. (18/11721-4, 14/21477-2)

BRAX, PHILIPPE; FICHET, SYLVAIN; TANEDO, PHILIP. The warped dark sector. Physics Letters B, v. 798, NOV 10 2019. (18/11721-4, 14/21477-2)

FERREIRA, FELIPE; FICHET, SYLVAIN; SANZ, VERONICA. On new physics searches with multidimensional differential shapes. Physics Letters B, v. 778, p. 35-42, MAR 10 2018. (14/21477-2)

FICHET, SYLVAIN. Taming systematic uncertainties at the LHC with the central limit theorem. Nuclear Physics B, v. 911, p. 623-637, OCT 2016. (14/21477-2)

COSTANTINO, ALEXANDRIA; FICHET, SYLVAIN; TANEDO, PHILIP. Exotic spin-dependent forces from a hidden sector. Journal of High Energy Physics, v. N/A, n. 3, p. 28-pg., 2020-03-25. (18/11721-4, 14/21477-2)

COSTANTINO, ALEXANDRIA; FICHET, SYLVAIN. The neutrino Casimir force. Journal of High Energy Physics, v. N/A, n. 9, p. 15-pg., 2020-09-18. (18/11721-4, 14/21477-2)

BALDENEGRO, C.; FICHET, S.; VON GERSDORFF, G.; ROYON, C.. Searching for axion-like particles with proton tagging at the LHC. Journal of High Energy Physics, v. N/A, n. 6, p. 19-pg., 2018-06-25. (14/21477-2)

BRAX, PHILIPPE; FICHET, SYLVAIN. Scalar-mediated quantum forces between macroscopic bodies and interferometry. PHYSICS OF THE DARK UNIVERSE, v. 42, p. 18-pg., 2023-12-01. (18/11721-4, 14/21477-2)

FICHET, SYLVAIN; VON GERSDORFF, GERO; PONTON, EDUARDO; ROSENFELD, ROGERIO. The global Higgs as a signal for compositeness at the LHC. Journal of High Energy Physics, v. N/A, n. 1, p. 28-pg., 2017-01-03. (14/21477-2)

ARBEY, ALEXANDRE; FICHET, SYLVAIN; MAHMOUDI, FARVAH; MOREAU, GREGORY. The correlation matrix of Higgs rates at the LHC. Journal of High Energy Physics, v. N/A, n. 11, p. 22-pg., 2016-11-17. (14/21477-2)

BRAX, PHILIPPE; FICHET, SYLVAIN. Quantum chameleons. Physical Review D, v. 99, n. 10, p. 12-pg., 2019-05-20. (18/11721-4, 14/21477-2)

FICHET, SYLVAIN. Shining light on polarizable dark particles. Journal of High Energy Physics, v. N/A, n. 4, p. 25-pg., 2017-04-14. (14/21477-2)