| dc.creator | Dova, María Teresa | |
| dc.creator | L3 Collaboration | |
| dc.date | 1992-01-23 | |
| dc.date | 2019-04-09T13:51:44Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/74004 | |
| dc.identifier | issn:0370-2693 | |
| dc.description | The L3 detector at LEP has been used to determine the number of light neutrino families by measuring the cross section of single photon even in e+e - collisions at energies near the Z° resonance. We have observed 61 single photon candidates with more than 1.5 GeV of deposited energy in the barrel electromagnetic calorimeter, for a total integrated luminosity of 3.0 pb-1. From a likelihood fit to the single photon cross sections, we determine Nv = 3.24 ± 0.46 (statistical) _+ 0.22 (systematic). | |
| dc.description | Facultad de Ciencias Exactas | |
| dc.format | application/pdf | |
| dc.format | 209-221 | |
| 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 | L3 detector | |
| dc.subject | LEP | |
| dc.subject | neutrino families | |
| dc.title | A direct determination of the number of light neutrino families from e<SUP>+</SUP> e<SUP>-</SUP> → vvγ at LEP | |
| dc.type | Articulo | |
| dc.type | Articulo | |
