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Limits on ντ mass by DELPHI

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Title: Limits on ντ mass by DELPHI
Authors: Perego, D.L.1 davide.perego@mib.infn.it
Source: Nuclear Physics B Proceedings Supplement. Jul2003, Vol. 123 Issue 1-3, p251. 9p.
Subjects: Neutrino mass, Radioactive decay, Nuclear physics
Abstract: A limit on the tau neutrino mass is obtained using all the Z0 → τ+τ− 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 τ decays into five charged pions (1–5 topology) have been used.The neutrino mass is determined from a bidimensional fit on the invariant mass m5π* and on the energy E5π of the five π± system. The result found is mντ < 48.0 MeV/c2 at 95% confidence level. [Copyright &y& Elsevier]
Copyright of Nuclear Physics B Proceedings Supplement is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: Limits on &lt;F&gt;ν&lt;subscript&gt;τ&lt;/subscript&gt;&lt;/F&gt; mass by DELPHI
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Perego%2C+D%2EL%2E%22&quot;&gt;Perego, D.L.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt;&lt;i&gt; davide.perego@mib.infn.it&lt;/i&gt;
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  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Neutrino+mass%22&quot;&gt;Neutrino mass&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Radioactive+decay%22&quot;&gt;Radioactive decay&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Nuclear+physics%22&quot;&gt;Nuclear physics&lt;/searchLink&gt;
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  Label: Abstract
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  Data: A limit on the tau neutrino mass is obtained using all the &lt;F&gt;Z0 → τ+τ−&lt;/F&gt; 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 τ decays into five charged pions (1–5 topology) have been used.The neutrino mass is determined from a bidimensional fit on the invariant mass &lt;F&gt;m5π&amp;ast;&lt;/F&gt; and on the energy &lt;F&gt;E5π&lt;/F&gt; of the five &lt;F&gt;π&#177;&lt;/F&gt; system. The result found is &lt;F&gt;mντ&lt;/F&gt; &lt; 48.0 MeV/c2 at 95% confidence level. [Copyright &amp;y&amp; Elsevier]
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  Data: &lt;i&gt;Copyright of Nuclear Physics B Proceedings Supplement is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder&#39;s express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.&lt;/i&gt; (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/S0920-5632(03)02185-6
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      – Code: eng
        Text: English
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        PageCount: 9
        StartPage: 251
    Subjects:
      – SubjectFull: Neutrino mass
        Type: general
      – SubjectFull: Radioactive decay
        Type: general
      – SubjectFull: Nuclear physics
        Type: general
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      – TitleFull: Limits on <F>ντ</F> mass by DELPHI
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              Text: Jul2003
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            – TitleFull: Nuclear Physics B Proceedings Supplement
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