Szczegóły publikacji
Opis bibliograficzny
Measurements of the QED structure of the photon / G. Abbiendi [et al.], M. PRZYBYCIEŃ [et al.] // The European Physical Journal. C, Particles and Fields ; ISSN 1434-6044. — 1999 — vol. 11 iss. 3, s. 409–425. — Bibliogr. s. 425, Abstr. — Publikacja dostępna online od: 1999-09-28. — M. Przybycień - pierwsza afiliacja: CERN, European Organisation for Particle Physics, Geneva, Switzerland
Autorzy (320)
- AGHPrzybycień Mariusz
- Abbiendi Giovanni
Dane bibliometryczne
| ID BaDAP | 2751 |
|---|---|
| Data dodania do BaDAP | 2001-04-18 |
| Tekst źródłowy | URL |
| DOI | 10.1007/s100520050644 |
| Rok publikacji | 1999 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | European Physical Journal, C |
Abstract
The structure of both quasi-real and highly virtual photons is investigated using the reaction e(+)e(-) –> e(+)e(-) mu(+)mu(-), proceeding via the exchange of two photons. The results are based on the complete OPAL dataset taken at e(+)e(-) centre-of-mass energies close to the mass of the Z boson. The QED structure function F(2)(gamma) and the differential cross-section d sigma/dx for quasi-real photons are obtained as functions of the fractional momentum x from the muon momentum which is carried by the struck muon in the quasi-real photon for Values of Q(2) ranging from 1.5 to 400 GeV(2). The differential cross-section d sigma/dx for highly virtual photons is measured for 1.5 < Q(2) < 30 GeV(2) and 1.5 < P(2) < 20 GeV(2), where Q(2) and P(2) are the negative values of the four-momentum squared of the two photons such that Q(2) > P(2). Based on azimuthal correlations the QED structure functions F(A)(gamma) and F(B)(gamma) for quasi-real photons are determined for an average Q(2) of 5.4 GeV(2).
