R. Lafaye

ORCID: 0000-0001-7848-6088
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About
Contact & Profiles
Research Areas
  • Particle physics theoretical and experimental studies
  • High-Energy Particle Collisions Research
  • Particle Detector Development and Performance
  • Quantum Chromodynamics and Particle Interactions
  • Dark Matter and Cosmic Phenomena
  • Cosmology and Gravitation Theories
  • Computational Physics and Python Applications
  • Neutrino Physics Research
  • Distributed and Parallel Computing Systems
  • Black Holes and Theoretical Physics
  • Radiation Detection and Scintillator Technologies
  • Astrophysics and Cosmic Phenomena
  • Particle Accelerators and Free-Electron Lasers
  • Superconducting Materials and Applications
  • Medical Imaging Techniques and Applications
  • Muon and positron interactions and applications
  • Particle accelerators and beam dynamics
  • advanced mathematical theories
  • Atomic and Subatomic Physics Research
  • Advanced Data Storage Technologies
  • Structural Analysis of Composite Materials
  • Digital Radiography and Breast Imaging
  • Nuclear reactor physics and engineering
  • Nuclear Physics and Applications
  • Photocathodes and Microchannel Plates

Laboratoire d’Annecy de Physique des Particules
2015-2024

Université Savoie Mont Blanc
2015-2024

Institut National de Physique Nucléaire et de Physique des Particules
2014-2023

Centre National de la Recherche Scientifique
2014-2023

Université Grenoble Alpes
2018-2022

The University of Adelaide
2013-2022

Istanbul Aydın University
2015-2020

Ludwig-Maximilians-Universität München
2019

Joint Institute for Nuclear Research
2019

Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
2014-2017

10.1140/epjc/s2005-02460-1 article EN The European Physical Journal C 2006-02-08

Following recent ATLAS and CMS publications we interpret the results of their Higgs searches in terms standard model operators. For a boson mass 125 GeV determine several couplings from published 2011 data extrapolate towards different scenarios LHC running. Even though our analysis is limited by low statistics already derive meaningful constraints on modified sectors.

10.1103/physrevlett.109.101801 article EN Physical Review Letters 2012-09-07

10.1088/1126-6708/2009/08/009 article EN Journal of High Energy Physics 2009-08-06

10.1140/epjc/s10052-008-0548-z article EN The European Physical Journal C 2008-02-28

Higgs couplings can be measured at a linear collider with high precision. We estimate the uncertainties of such measurements, including theoretical errors. Based on these results we show an extrapolation for combined analysis and high-luminosity LHC.

10.1209/0295-5075/101/51001 article EN EPL (Europhysics Letters) 2013-03-01

Recent measurements by Planck, LHC experiments, and Xenon100 have significant impact on supersymmetric models their parameters. We first illustrate the constraints in mSUGRA plane then perform a detailed analysis of general minimal Standard Model (MSSM) with 13 free Using SFitter, Bayesian profile likelihood approaches are applied results compared. The allowed structures parameter spaces largely defined different mechanisms dark matter annihilation combination light Higgs mass prediction. In...

10.1103/physrevd.89.055017 article EN Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology 2014-03-19

SFITTER is a new analysis tool to determine supersymmetric model parameters from collider measurements. Using the set of mass measurements at LC and LHC we show how both colliders probe different sectors MSSM Lagrangian. This observation strong motivation move parameter fit assuming certain unconstrained weak-scale We argue technical challenges can be dealt with in combined fit/grid approach full correlations.

10.48550/arxiv.hep-ph/0404282 preprint EN other-oa arXiv (Cornell University) 2004-01-01

10.1016/j.nima.2007.08.157 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2007-08-23

The work contained herein constitutes a report of the ``Beyond Standard Model'' working group for Workshop "Physics at TeV Colliders", Les Houches, France, 26 May--6 June, 2003. research presented is original, and was performed specifically workshop. Tools calculations in minimal supersymmetric standard model are presented, including comparison dark matter relic density predicted by public codes. Reconstruction particle masses LHC future linear collider facility examined. Less orthodox...

10.48550/arxiv.hep-ph/0402295 preprint EN other-oa arXiv (Cornell University) 2004-01-01

The Galactic Center excess of gamma ray photons can be naturally explained by light Majorana fermions in combination with a pseudoscalar mediator. next-to-minimal supersymmetric Standard Model (NMSSM) provides exactly these ingredients. We show that for neutralinos significant singlino component the linked to invisible decays Model--like Higgs at LHC. find predictions branching ratios 50%, easily accessible Constraining NMSSM through grand-unified-theory (GUT)-scale boundary conditions only...

10.1103/physrevd.93.015011 article EN Physical review. D/Physical review. D. 2016-01-20

10.1140/epjc/s10052-010-1520-2 article EN The European Physical Journal C 2011-01-01

The increase of the particle flux at HL-LHC with instantaneous luminosities up to L=7.5 × 10 34 cm −2 s −1 will have a severe impact on ATLAS detector reconstruction and trigger performance. end-cap forward region where liquid Argon calorimeter has coarser granularity inner tracker poorer momentum resolution be particularly affected. A High Granularity Timing Detector installed in front calorimeters help charged-particle luminosity measurement. This low angle is introduced augment new...

10.1016/j.nima.2022.166628 article EN cc-by Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2022-03-24

10.1016/j.nima.2005.05.041 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2005-07-02

This collection of studies on new physics at the LHC constitutes report supersymmetry working group Workshop `Physics TeV Colliders', Les Houches, France, 2007. They cover wide spectrum phenomenology in era, from alternative models and signatures to extraction relevant observables, study MSSM parameter space finally interplay observations with additional data expected a similar time scale. The special feature this is that while not each explicitely performed together by theoretical...

10.48550/arxiv.0802.3672 preprint EN other-oa arXiv (Cornell University) 2008-01-01
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