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You searched for +publisher:"Université Catholique de Louvain" +contributor:("Favart, Laurent"). Showing records 1 – 3 of 3 total matches.

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Université Catholique de Louvain

1. Ovyn, Séverine. Photoproduction of top and higgs particles at the LHC.

Degree: 2010, Université Catholique de Louvain

Thanks to its high energy and luminosity, the Large Hadron Collider (LHC) at CERN can also be exploited as an high energy photon collider. In particular photoproduction offers interesting possibilities for the study of the electroweak sector up to TeV scale. After a brief presentation of cross sections for many photon-induced processes, prospects are discussed for the Higgs boson search as well as for the top quark physics. Although the studied final states possess striking characteristics, the separation of photon-induced processes from the overwhelming background of partonic interactions requires the use of advanced techniques. In this context, several tagging strategies are proposed, depending on the LHC luminosity. In order to realistically perform a simulation of the response of a multipurpose detector, a dedicated framework called DELPHES was designed. Using this fast simulation of a LHC-like detector, expected sensitivity on the tWb coupling measurement using several topologies resulting from the W associated single top photoproduction are presented. Finally, a more detailed estimate of the expected sensitivity of photoproduction for the most promising topology has been performed with the CMS simulation tools, which confirms the results obtained with DELPHES.

(PHYS 3)  – UCL, 2010

Advisors/Committee Members: UCL - SC - Sciences, Lemaître, Vincent, Piraux, Bernard, Arneodo, Michele, d’Enterria, David, Favart, Laurent, Maltoni, Fabio, Piotrzkowski, Krzysztof.

Subjects/Keywords: LHC; Delphes; Photon interactions; Top; Higgs; CERN

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Ovyn, S. (2010). Photoproduction of top and higgs particles at the LHC. (Thesis). Université Catholique de Louvain. Retrieved from http://hdl.handle.net/2078.1/32211

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Ovyn, Séverine. “Photoproduction of top and higgs particles at the LHC.” 2010. Thesis, Université Catholique de Louvain. Accessed October 14, 2019. http://hdl.handle.net/2078.1/32211.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Ovyn, Séverine. “Photoproduction of top and higgs particles at the LHC.” 2010. Web. 14 Oct 2019.

Vancouver:

Ovyn S. Photoproduction of top and higgs particles at the LHC. [Internet] [Thesis]. Université Catholique de Louvain; 2010. [cited 2019 Oct 14]. Available from: http://hdl.handle.net/2078.1/32211.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ovyn S. Photoproduction of top and higgs particles at the LHC. [Thesis]. Université Catholique de Louvain; 2010. Available from: http://hdl.handle.net/2078.1/32211

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


Université Catholique de Louvain

2. François, Brieuc. Search for resonant di-Higgs production in CMS and development of a model independent approach to look for new physics at the LHC.

Degree: 2017, Université Catholique de Louvain

Despite the numerous experimental confirmations of the Standard Model (SM), this framework is believed not to be the complete theory of fundamental interactions. Many scenarios of physics beyond the SM (BSM) are postulated to solve some of the SM deficiencies. In this thesis we perform searches for new physics exploiting 13 TeV proton-proton collisions provided by the Large Hadron Collider and recorded by the Compact Muon Solenoid detector. We present the very first search for resonant Higgs pair production, X → hh, where one of the h decays into a b-quark pair and the other into two leptons plus two neutrinos via vector bosons. This process is predicted in several BSM scenarios such as Warped Extra Dimension or Two Higgs Doublet Model. The observations are found to be compatible with the SM expectations and limits are set on the signal production cross section for resonance masses from mX = 260 GeV to 900 GeV, for both spin-0 and spin-2 particles. The second part of the thesis discusses the development of an innovative approach to search for new physics that allows to probe a large range of deviations from the SM predictions. While model independent searches probe in general the tails of various observables, this analysis is designed to be sensitive in phase space regions widely populated by SM processes. The final discriminant results from a recursive separation of the backgrounds based on the Matrix Element Method.

(SC - Sciences)  – UCL, 2017

Advisors/Committee Members: UCL - SST/IRMP - Institut de recherche en mathématique et physique, UCL - Faculté des Sciences, Favart, Laurent, Collard, Caroline, Giammanco, Andrea, Gérard, Jean-Marc, Lemaitre, Vincent.

Subjects/Keywords: HEP; CMS

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

François, B. (2017). Search for resonant di-Higgs production in CMS and development of a model independent approach to look for new physics at the LHC. (Thesis). Université Catholique de Louvain. Retrieved from http://hdl.handle.net/2078.1/191754

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

François, Brieuc. “Search for resonant di-Higgs production in CMS and development of a model independent approach to look for new physics at the LHC.” 2017. Thesis, Université Catholique de Louvain. Accessed October 14, 2019. http://hdl.handle.net/2078.1/191754.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

François, Brieuc. “Search for resonant di-Higgs production in CMS and development of a model independent approach to look for new physics at the LHC.” 2017. Web. 14 Oct 2019.

Vancouver:

François B. Search for resonant di-Higgs production in CMS and development of a model independent approach to look for new physics at the LHC. [Internet] [Thesis]. Université Catholique de Louvain; 2017. [cited 2019 Oct 14]. Available from: http://hdl.handle.net/2078.1/191754.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

François B. Search for resonant di-Higgs production in CMS and development of a model independent approach to look for new physics at the LHC. [Thesis]. Université Catholique de Louvain; 2017. Available from: http://hdl.handle.net/2078.1/191754

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


Université Catholique de Louvain

3. Forthomme, Laurent. Measurement of exclusive two-photon processes with dilepton final states in pp collisions at the LHC.

Degree: 2016, Université Catholique de Louvain

The unification of the electromagnetic and weak forces is a cornerstone of the standard theory of elementary particles and fundamental interactions. At the Large Hadron Collider the processes of pair production via fusion of two exchanged photons provide a unique laboratory both for testing the standard theory and for search of new phenomena in high-energy physics. In this thesis such a two-photon exclusive pair production in pp collisions has been studied experimentally, at two centre of mass energies using the data collected with the CMS experiment during LHC's Run-1.? Thanks to large, effective photon fluxes and the outstanding performance of the CMS apparatus clean two-photon signal samples could be extracted. The novel track-based exclusivity selection was instrumental for making successful measurements in an extremely demanding LHC environment. In particular, the "reference" two-photon production of lepton pairs has been measured and investigated in detail, including extended phenomenological studies. A new formalism has been implemented in Monte Carlo simulations using the so-called kT factorisation scheme ? Finally, the two-photon production of weak boson pairs has been studied through the analysis of the data collected with CMS at 7 and 8 TeV. Beside the first observation ever made experimentally of the ???WW process, the measured production rate has been used to extract the best world limits on anomalous behaviour of the ??WW as well as the ??ZZ quartic gauge boson couplings. In addition, the Precision Proton Spectrometer project has been also portrayed – the PPS detectors will allow to measure forward scattered protons, and hence to tag two-photon processes. In particular, one of the possible, ultrafast timing detectors to be installed in the spectrometer is characterised: the GasToF Cerenkov time of flight detector.

(SC - Sciences)  – UCL, 2016

Advisors/Committee Members: UCL - SST/IRMP - Institut de recherche en mathématique et physique, UCL - Faculté des Sciences, Piotrzkowski, Krzysztof, Lemaitre, Vincent, Giammanco, Andrea, Favart, Laurent, Varela, João.

Subjects/Keywords: Physique des particules; Détecteur Cerenkov; Interactions fondamentales; Couplages quartiques; CMS; CERN; LHC; GasToF; LHC

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Forthomme, L. (2016). Measurement of exclusive two-photon processes with dilepton final states in pp collisions at the LHC. (Thesis). Université Catholique de Louvain. Retrieved from http://hdl.handle.net/2078.1/174068

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Forthomme, Laurent. “Measurement of exclusive two-photon processes with dilepton final states in pp collisions at the LHC.” 2016. Thesis, Université Catholique de Louvain. Accessed October 14, 2019. http://hdl.handle.net/2078.1/174068.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Forthomme, Laurent. “Measurement of exclusive two-photon processes with dilepton final states in pp collisions at the LHC.” 2016. Web. 14 Oct 2019.

Vancouver:

Forthomme L. Measurement of exclusive two-photon processes with dilepton final states in pp collisions at the LHC. [Internet] [Thesis]. Université Catholique de Louvain; 2016. [cited 2019 Oct 14]. Available from: http://hdl.handle.net/2078.1/174068.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Forthomme L. Measurement of exclusive two-photon processes with dilepton final states in pp collisions at the LHC. [Thesis]. Université Catholique de Louvain; 2016. Available from: http://hdl.handle.net/2078.1/174068

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

.