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Limits on $\nu_{\tau}$ mass by DELPHI
A limit on the tau neutrino mass is obtained using all the $Z^{0} \to \tau^{+} \tau^{-}$ data collected at LEP by the DELPHI detector between 1992 and 1995. In this analysis events in which one of the taus decays into one charged particle, while the second $\tau$ decays into f{}ive charged pions (1-...
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| Lenguaje: | eng |
| Publicado: |
2002
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| Acceso en línea: | https://dx.doi.org/10.1016/S0920-5632(03)02185-6 http://cds.cern.ch/record/582807 |
| _version_ | 1780899480240914432 |
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| author | Perego, Davide Luigi |
| author_facet | Perego, Davide Luigi |
| author_sort | Perego, Davide Luigi |
| collection | CERN |
| description | A limit on the tau neutrino mass is obtained using all the $Z^{0} \to \tau^{+} \tau^{-}$ data collected at LEP by the DELPHI detector between 1992 and 1995. In this analysis events in which one of the taus decays into one charged particle, while the second $\tau$ decays into f{}ive charged pions (1-5 topology) have been used. The neutrino mass is determined from a bidimensional \fit ~on the invariant mass $m^{*}_{5 \pi}$ and on the energy $E_{5 \pi}$ of the f{}ive $\pi^{\pm}$ system. The result found is $m_{\nu_{\tau}}<$ 48.0 MeV$\slash c^{2}$ at 95% conf{}idence level. |
| id | cern-582807 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2002 |
| record_format | invenio |
| spelling | cern-5828072023-03-14T18:47:26Zdoi:10.1016/S0920-5632(03)02185-6http://cds.cern.ch/record/582807engPerego, Davide LuigiLimits on $\nu_{\tau}$ mass by DELPHIParticle Physics - ExperimentA limit on the tau neutrino mass is obtained using all the $Z^{0} \to \tau^{+} \tau^{-}$ data collected at LEP by the DELPHI detector between 1992 and 1995. In this analysis events in which one of the taus decays into one charged particle, while the second $\tau$ decays into f{}ive charged pions (1-5 topology) have been used. The neutrino mass is determined from a bidimensional \fit ~on the invariant mass $m^{*}_{5 \pi}$ and on the energy $E_{5 \pi}$ of the f{}ive $\pi^{\pm}$ system. The result found is $m_{\nu_{\tau}}<$ 48.0 MeV$\slash c^{2}$ at 95% conf{}idence level.A limit on the tau neutrino mass is obtained using all the $Z^{0} \to \tau^{+} \tau^{-}$ data collected at LEP by the DELPHI detector between 1992 and 1995. In this analysis events in which one of the taus decays into one charged particle, while the second $\tau$ decays into f{}ive charged pions (1-5 topology) have been used. The neutrino mass is determined from a bidimensional \fit ~on the invariant mass $m^{*}_{5 \pi}$ and on the energy $E_{5 \pi}$ of the f{}ive $\pi^{\pm}$ system. The result found is $m_{\nu_{\tau}}<$ 48.0 MeV$\slash c^{2}$ at 95% conf{}idence level.A limit on the tau neutrino mass is obtained using all the $Z^{0} \to \tau^{+} \tau^{-}$ data collected at LEP by the DELPHI detector between 1992 and 1995. In this analysis events in which one of the taus decays into one charged particle, while the second $\tau$ decays into f{}ive charged pions (1-5 topology) have been used. The neutrino mass is determined from a bidimensional \fit ~on the invariant mass $m^{*}_{5 \pi}$ and on the energy $E_{5 \pi}$ of the f{}ive $\pi^{\pm}$ system. The result found is $m_{\nu_{\tau}}<$ 48.0 MeV$\slash c^{2}$ at 95% conf{}idence level.A limit on the tau neutrino mass is obtained using all the $Z^{0} \to \tau^{+} \tau^{-}$ data collected at LEP by the DELPHI detector between 1992 and 1995. In this analysis events in which one of the taus decays into one charged particle, while the second $\tau$ decays into f{}ive charged pions (1-5 topology) have been used. The neutrino mass is determined from a bidimensional \fit ~on the invariant mass $m^{*}_{5 \pi}$ and on the energy $E_{5 \pi}$ of the f{}ive $\pi^{\pm}$ system. The result found is $m_{\nu_{\tau}}<$ 48.0 MeV/$c^{2}$ at 95% conf{}idence level.hep-ex/0209067TAU-2002-TH01oai:cds.cern.ch:5828072002-09-25 |
| spellingShingle | Particle Physics - Experiment Perego, Davide Luigi Limits on $\nu_{\tau}$ mass by DELPHI |
| title | Limits on $\nu_{\tau}$ mass by DELPHI |
| title_full | Limits on $\nu_{\tau}$ mass by DELPHI |
| title_fullStr | Limits on $\nu_{\tau}$ mass by DELPHI |
| title_full_unstemmed | Limits on $\nu_{\tau}$ mass by DELPHI |
| title_short | Limits on $\nu_{\tau}$ mass by DELPHI |
| title_sort | limits on $\nu_{\tau}$ mass by delphi |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/S0920-5632(03)02185-6 http://cds.cern.ch/record/582807 |
| work_keys_str_mv | AT peregodavideluigi limitsonnutaumassbydelphi |