Szczegóły publikacji
Opis bibliograficzny
Z boson pair production in $e^{+}e^{-}$ collisions at $\sqrt{s}=183$ and 189 GeV / G. Abbiendi [et al.], M. PRZYBYCIEŃ [et al.] // Physics Letters. B, Nuclear Elementary Particle and High-Energy Physics ; ISSN 0370-2693. — 2000 — vol. 476 iss. 3–4, s. 256–272. — Bibliogr. s. 271–272, Abstr. — Publikacja dostępna online od: 2000-03-17. — M. Przybycień - pierwsza afiliacja: CERN, European Organisation for Particle Physics, Geneva, Switzerland
Autorzy (313)
- AGHPrzybycień Mariusz
- Abbiendi Giovanni
Dane bibliometryczne
| ID BaDAP | 10930 |
|---|---|
| Data dodania do BaDAP | 2002-11-22 |
| Tekst źródłowy | URL |
| DOI | 10.1016/S0370-2693(00)00197-0 |
| Rok publikacji | 2000 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Physics Letters, B |
Abstract
A study of Z boson pair production in e(+)e(-) annihilation at center-of-mass energies near 183 GeV and 189 GeV is reported. Final states containing only leptons, (l(+)l(-)l(+)l(-) and l(+)l(-) v (v) over bar), quark and lepton pairs, (q (q) over bar l(+)l(-), q (q) over bar v (v) over bar) and the all-hadronic final state (q (q) over bar q (q) over bar) are considered. In all states with at least one Z boson decaying hadronically, q (q) over bar and b (b) over bar final states are considered separately using lifetime and event-shape tags, thereby improving the cross-section measurement. At root s = 189 GeV the Z-pair cross section was measured to be 0.80(-0.13)(+0.14)(stat.)(-0.05)(+0.06)(syst.) pb, consistent with the Standard Model prediction. At root s = 183 GeV the 95% C.L. upper limit is 0.55 pb. Limits on anomalous ZZ gamma and ZZZ couplings are derived. (C) 2000 Published by Elsevier Science B.V. All rights reserved.
