Filters
Results 1 - 1 of 1
Results 1 - 1 of 1.
Search took: 0.018 seconds
AbstractAbstract
[en] One first shows interesting aspects specific of photon-photon collisions (γγ → X; leptonic or hadronic system C=+1, any Jsup(p) (a priori)). Then, one justifies the introduction, in experimental conditions at DCI, of a double Williams-Weiszacker approximation to compute ee → eeX reactions cross sections. This is made after a calculation developped in the frame of an 0(2,1) group's formalism. After, one presents to the important points of two photons experiments: essentially, necessity tagg electrons diffused at zero degree. The tagging system on DCI is then described: drift chambers of good spatial accuracy (0.2 mm), proximity of the beam are its main characteristics. One then estimates the background in detectors and the waited counting rates for ee→ee+(2γ) e+e-,μ+μ-, π+π-
[fr]
On expose d'abord les aspects interessants specifiques des collisions photon-photon (γγ → X; X systeme leptonique ou hadronique C=+1, Jsup(p) a priori quelconque). Puis on justifie l'introduction dans les conditions experimentales a DCI, d'une double approximation de Williams-Weiszacker pour le calcul de la section efficace de la reaction ee → eeX. Cela se fait a l'isue d'un calcul developpe dans le cadre d'un formalisme de groupe 0(2,1). On presente ensuite les points importants des experiences a deux photons: essentiellement la necessite d'etiqueter les electrons diffuses a zero degre. Le systeme d'etiquetage sur DCI est alors decrit: chambres a derive de bonne resolution spatiale (0,2mm); proximite du faisceau sont ses principales caracteristiques. On evalue alors le bruit de fond dans les detecteurs ainsi que les taux de comptage attendus pour ee → ee+(2γ) e+e-,μ+μ-, π+π-Original Title
Etude des reactions de collisions photon-photon aupres du D.C.I
Primary Subject
Secondary Subject
Source
1978; 94 p; These (3e Cycle).
Record Type
Miscellaneous
Literature Type
Thesis/Dissertation; Numerical Data
Report Number
Country of publication
ANGULAR MOMENTUM, BASIC INTERACTIONS, COHERENT SCATTERING, COINCIDENCE METHODS, COUNTING TECHNIQUES, DATA, DATA FORMS, DIFFRACTION, ELECTROMAGNETIC INTERACTIONS, INFORMATION, INTERACTIONS, MEASURING INSTRUMENTS, NOISE, NUMERICAL DATA, PARTICLE INTERACTIONS, PARTICLE PROPERTIES, PROPORTIONAL COUNTERS, RADIATION DETECTORS, SCATTERING, STORAGE RINGS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue