| dc.creator | Dova, María Teresa | |
| dc.creator | L3 Collaboration | |
| dc.date | 1997-09-04 | |
| dc.date | 2019-09-04T15:22:29Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/80450 | |
| dc.identifier | issn:0370-2693 | |
| dc.description | We report on the measurement of W-boson pair-production with the L3 detector at LEP at an average centre-of-mass energy of 172.13 GeV. In a data sample corresponding to a total luminosity of 10.25 pb<sup>−1</sup> we select 110 four-fermion events with pairs of hadronic jets or leptons with high invariant masses. Branching fractions of W decays into different fermion-antifermion pairs are determined with and without the assumption of charged-current lepton universality. The branching fraction for hadronic W decays is measured to be: B(W → hadrons) = 64.2<sup>+3.7</sup><sub>−3.8</sub> (stat.) ± 0.5 (syst.) %. Combining all final states the total cross section for W-pair production is measured to be: σ<sub>WW</sub> = 12.27<sup>+1.41</sup><sub>−1.32</sub> (stat.) ± 0.23 (syst.) pb. The results are in good agreement with the Standard Model. | |
| dc.description | Facultad de Ciencias Exactas | |
| dc.format | application/pdf | |
| dc.format | 419-431 | |
| dc.language | en | |
| dc.rights | http://creativecommons.org/licenses/by-nc-sa/4.0/ | |
| dc.rights | Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) | |
| dc.subject | Ciencias Exactas | |
| dc.subject | Física | |
| dc.subject | w boson | |
| dc.subject | L3 detector | |
| dc.subject | la̵rge hadron collider | |
| dc.title | Measurement of W-pair cross sections in e+e− interactions at √s = 172 GeV and W-decay branching fractions | |
| dc.type | Articulo | |
| dc.type | Articulo | |
