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Renard, F.M.
Montpellier-2 Univ., 34 (France). Dept. de Physique Mathematique1976
Montpellier-2 Univ., 34 (France). Dept. de Physique Mathematique1976
AbstractAbstract
[en] The problem of lepton production in hadronic collisions is reviewed. The following subjects are developed: the Drell-Yan model for continuous l+l- production, vector mesons and clusters, and other sources of direct leptons
[fr]
On a passe en revue le probleme de la production de leptons dans les collisions hadroniques. Les points suivants sont developpes: le modele de Drell-Yan pour la production continue de l+l-, mesons vectoriels et amas, et autres sources de leptons directsPrimary Subject
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Jun 1976; 39 p; 7. International seminar on theoretical physics; Gerona, Spain; 7 Jun 1976
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BOSONS, COMPOSITE MODELS, ELEMENTARY PARTICLES, FERMIONS, HADRONS, INELASTIC SCATTERING, INTERACTIONS, LEPTON-BARYON INTERACTIONS, LEPTON-HADRON INTERACTIONS, LEPTON-NUCLEON INTERACTIONS, MATHEMATICAL MODELS, MESON RESONANCES, MESONS, PARTICLE INTERACTIONS, PARTICLE MODELS, POSTULATED PARTICLES, RESONANCE PARTICLES, SCATTERING
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Renard, F.M.
Stanford Linear Accelerator Center, CA (USA)1983
Stanford Linear Accelerator Center, CA (USA)1983
AbstractAbstract
[en] The processes γγ → hadrons can be depicted as follows. One photon creates a q anti q pair which starts to evolve; the other photon can either (A) make its own q anti q pair and the (q anti q q anti q) system continue to evolve or (B) interact with the quarks of the first pair and lead to a modified (q anti q) system in interaction with C = +1 quantum numbers. A review of the recent theoretical activity concerning resonance production and related problems is given under the following headings: hadronic C = +1 spectroscopy (q anti q, qq anti q anti q, q anti q g, gg, ggg bound states and mixing effects); exclusive γγ processes (generalities, unitarized Born method, VDM and QCD); total cross section (soft and hard contributions); q2 dependence of soft processes (soft/hard separation, 1/sup +- +/ resonances); and polarization effects
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Apr 1983; 25 p; 5. international workshop on photon-photon collisions; Aachen (Germany, F.R.); 13-16 Apr 1983; CONF-8304110--2; Available from NTIS, PC A02/MF A01 as DE83016444
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[en] This paper recalls the general properties of polarized e+e- cross-sections. The author underlines two rules which control the behavior of the transverse and longitudinal asymmetries as a consequence of chiral properties and spin structures. How they can be used for the search of new particles and interactions beyond the standard model is shown. Illustrations for supersymmetric particles composite particles, and substructure effects are given
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Lynn, B.W.; Verzegnassi, C; 461 p; ISBN 9971-50-300-X; 
; 1986; p. 333-352; World Scientific Pub. Co; Teaneck, NJ (USA); Workshop on tests of electroweak theories, polarized processes and other phenomena; Trieste (Italy); 10-12 Jun 1985; CONF-8506204--; World Scientific Pub. Co., 687 Hartwell Street, Teaneck, NJ 07666 (USA)
; 1986; p. 333-352; World Scientific Pub. Co; Teaneck, NJ (USA); Workshop on tests of electroweak theories, polarized processes and other phenomena; Trieste (Italy); 10-12 Jun 1985; CONF-8506204--; World Scientific Pub. Co., 687 Hartwell Street, Teaneck, NJ 07666 (USA)
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BEAMS, BOSONS, ELEMENTARY PARTICLES, FERMIONS, FIELD THEORIES, FUNCTIONS, GRAND UNIFIED THEORY, HADRONS, INTERACTIONS, LEPTON-LEPTON INTERACTIONS, MATHEMATICAL MODELS, MESONS, PARTICLE INTERACTIONS, PARTICLE MODELS, POSTULATED PARTICLES, PSEUDOSCALAR MESONS, QUANTUM FIELD THEORY, SYMMETRY, UNIFIED GAUGE MODELS
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AbstractAbstract
[en] We present the spectroscopy of new particles and new interactions assuming the case of leptons, quarks and W and Z bosons as formed of substructures. The experimental limits of the scale of the substructure and the couplings and the masses of these new particles are given. The possibilities of the futur e+e-, ep, pp and pantip colliders are reviewed
[fr]
Nous presentons la spectroscopie des nouvelles particules et des nouvelles interactions qui pourraient apparaitre dans le cas ou leptons, quarks et bosons W, Z seraient formes de sousconstituants. Nous donnons ensuite l'etat des limites experimentales sur l'echelle de la sous-structure et sur les couplages et les masses de ces nouvelles particules. Nous passons en revue les possibilites qu'offriront les futurs collisionneurs e+e-, ep, pp et pantipOriginal Title
Phenomenologie d'une sous-structure des leptons, des quarks et des bosons W+-, Z0
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Altarelli, G.; Aurenche, P.; Degrange, B.; Peccei, R.D.; Renard, F.M.; Perrottet, M.; Savoy, C. (eds); Institut National de Physique Nucleaire et de Physique des Particules, 75 - Paris (France); 374 p; 1987; p. 259-283; 17. Summer school on particle physics; Gif-sur-Yvette (France); 9-13 Sep 1985
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Renard, F.M.
Proceedings of the 17th international conference on high energy physics, London, July 19741974
Proceedings of the 17th international conference on high energy physics, London, July 19741974
AbstractAbstract
No abstract available
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Smith, J.R. (ed.); International Union of Pure and Applied Chemistry, Oxford (UK); Science Research Council, London (UK); p. IV-16-IV-19; 1974; Science Research Council, Rutherford Laboratory; Chilton, Didcot; 17. International conference on high energy physics; London, UK; 1 Jul 1974
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AbstractAbstract
[en] The particular possibilities of LEP 100 are related at the very high statistic that the Z peak has brought. It is precisely this aspect which will be developed in this report. This report is about precision tests. The bringing up of 106-107 Z disintegration events must allow the direct researches on the particles spectra. With a such statistic, it is possible to realise measurements with a precision inferior to 1% (In a few cases, with a precision of 10-4). So it is possible to do tests about the deep structure of electroweak interactions, and to verify the native of Z interactions (as with the photon). The tests program is drawn up. The possible quantitative answers are presented
[fr]
Les possibilites particulieres du LEP 100 sont liees entre autres a la tres haute statistique apportee par le pic du Z. C'est precisement cet aspect qui sera developpe dans ce cours consacre aux tests de precision. En effet l'apport de 106 a 107 evenements de desintegration du Z devrait permettre non seulement des recherches directes approfondies sur le spectre des particules existant dans ce domaine d'energie mais aussi d'ouvrir tout un nouveau champ d'etudes concernant les effets d'ordre superieurs. Avec une telle statistique il est possible de realiser des mesures avec une precision inferieure a 1% et atteignant meme dans certains cas une precision de 10-4. En rapprochant ces chiffres de l'ordre de grandeur des corrections radiatives electrofaibles (1%), on voit donc de suite la possibilite de faire des tests de la structure profonde des interactions electrofaibles, et de faire qualitativement une analogie avec les tests de QED et esperer verifier la nature des interactions du Z (description perturbative, renormalisabilite dans le cadre standard) comme on l'a fait pour le photon. Le programme de tests de precision est tres elabore et realisable grace au grand nombre d'observables independantes, au pic du Z, apres la determination (a 10-4) de la masse MZ, puis de la largeur du Z, les mesures des sections efficaces pour les diverses voies fermioniques et des asymetries avant-arrieres correspondantes devraient deja fournir plusieurs tests de base. La polarisation finale du τ devrait ensuite permettre de faire de nouveaux tests et de lever certaines ambiguites. Nous montrons les reponses quantitatives possibles aux diverses questions standards et non-standardsOriginal Title
Tests de precision a LEP
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Bouquet, A.; Haissinski, J.; Perrottet, M.; Renard, F.M.; Sadoulet, B.; Savoy, C.; Treille, D. (eds.); Institut National de Physique Nucleaire et de Physique des Particules (IN2P3), 75 - Paris (France); 364 p; 1990; p. 155-266; Summer School on Particle Physics; Ecole d'Ete de Physique des Particules; Annecy-le-Vieux (France); 18-22 Sep 1989
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BEAMS, BOSONS, CORRECTIONS, ELEMENTARY PARTICLES, FIELD THEORIES, GRAND UNIFIED THEORY, INTERACTIONS, INTERMEDIATE BOSONS, LEPTON-LEPTON INTERACTIONS, MATHEMATICAL MODELS, ORIENTATION, PARTICLE INTERACTIONS, PARTICLE MODELS, POSTULATED PARTICLES, QUANTUM FIELD THEORY, STORAGE RINGS, UNIFIED GAUGE MODELS
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[en] The properties of the ω' (1.78) particle discovered at Orsay are discussed and compared to the rho' (1.55) in the framework of the quark model and of the vector dominance model; predictions for a psi' are given
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Tran Thanh Van, J. (ed.); Paris-11 Univ., 91 - Orsay (France). Lab. de Physique Theorique et Particules Elementaires; v. 1 p. 21-26; nd; v. 1 p. 21-26; Universite de Paris-11. Laboratoire de Physique Theorique et Particules Elementaires; Orsay, France; 12. Rencontre de Moriond; Flaine, France; 6 - 18 Mar 1977; Available from Rencontre de Moriond, Bt. 211, Universite Paris-Sud, 91405 Orsay Cedex (France)
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[en] It is shown that 1sup(+-+) resonances can be observed at an appreciable rate in tagged e+e- experiments at low q2. The (qq-bar), (qqq-barq-bar), (qq-barg), (gg) and (ggg) spectroscopy are discussed and the corresponding γγsup(*) partial widths are computed
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Journal Article
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Nuovo Cimento. A; ISSN 0369-3546; ; v. 80(1); p. 1-11
; v. 80(1); p. 1-11
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[en] It is developed the phenomenology of excited quarks qsup(*). It is described the spectroscopy of new qq-barsup(*) mesonic states and calculated the cross-sections of various production mechanisms in e+e-, γγ, lepton-hadron and hadron-hadron collisions
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Nuovo Cimento. A; ISSN 0369-3546; ; v. 77(1); p. 1-20
; v. 77(1); p. 1-20
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[en] If the Z0 boson is made of colored subconstituents it can be produced in panti p (and pp) collisions through the subprocess gluon+gluon->Z0+gluon. The rate is estimated from the Z0-γ mixing parameter and found comparable to that of the Drell-Yan process. Events with a large psub(T) Z0 and a large psub(T) balancing gluon should be observed at the panti p collider. (orig.)
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CONTRACT DE-AC03-76SF00515; CODEN: PYLBA.
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Phys. Lett., B; ISSN 0370-2693; ; v. 132(4-6); p. 449-452
; v. 132(4-6); p. 449-452
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COMPOSITE MODELS, DIFFERENTIAL CROSS SECTIONS, DRELL MODEL, GEV RANGE 100-1000, GLUON MODEL, GLUONS, INCLUSIVE INTERACTIONS, INTERMEDIATE VECTOR BOSONS, LONGITUDINAL MOMENTUM, MIXING RATIO, NUCLEON-ANTINUCLEON INTERACTIO, PARTICLE PRODUCTION, PROTON-ANTIPROTON INTERACTIONS, STRONG INTERACTIONS, TRANSVERSE MOMENTUM, WEINBERG LEPTON MODEL
BARYON-BARYON INTERACTIONS, BASIC INTERACTIONS, BOSONS, CROSS SECTIONS, ELEMENTARY PARTICLES, ENERGY RANGE, FIELD THEORIES, GEV RANGE, HADRON-HADRON INTERACTIONS, INTERACTIONS, INTERMEDIATE BOSONS, LINEAR MOMENTUM, MATHEMATICAL MODELS, PARTICLE INTERACTIONS, PARTICLE MODELS, POSTULATED PARTICLES, QUANTUM FIELD THEORY, UNIFIED GAUGE MODELS
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