Limites nos parâmetros do modelo de oscilação com decaimento de neutrinos usando os dados do experimento MINOS

Submitted by JÚLIO HEBER SILVA (julioheber@yahoo.com.br) on 2017-06-23T17:07:23Z No. of bitstreams: 2 Dissertação - Abner Leonel Gadelha Gomes - 2013.pdf: 12566466 bytes, checksum: de6788671342c72dc83a388cf0a1f093 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) === Appro...

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Bibliographic Details
Main Author: Gomes, Abner Leonel Gadelha
Other Authors: Gomes, Ricardo Avelino
Format: Others
Language:Portuguese
Published: Universidade Federal de Goiás 2017
Subjects:
Online Access:http://repositorio.bc.ufg.br/tede/handle/tede/7509
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Summary:Submitted by JÚLIO HEBER SILVA (julioheber@yahoo.com.br) on 2017-06-23T17:07:23Z No. of bitstreams: 2 Dissertação - Abner Leonel Gadelha Gomes - 2013.pdf: 12566466 bytes, checksum: de6788671342c72dc83a388cf0a1f093 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) === Approved for entry into archive by Cláudia Bueno (claudiamoura18@gmail.com) on 2017-07-07T20:24:16Z (GMT) No. of bitstreams: 2 Dissertação - Abner Leonel Gadelha Gomes - 2013.pdf: 12566466 bytes, checksum: de6788671342c72dc83a388cf0a1f093 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) === Made available in DSpace on 2017-07-07T20:24:16Z (GMT). No. of bitstreams: 2 Dissertação - Abner Leonel Gadelha Gomes - 2013.pdf: 12566466 bytes, checksum: de6788671342c72dc83a388cf0a1f093 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2014-03-13 === Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES === We use the and produced from MINOS beam line that recently reported a disappearence analysis using their full data and combining the beam line and atmospheric neutrinos and antineutrinos events. We used their beam data analysis to constrain the neutrino lifetime under the oscillation plus decay framework. Our analysis reports 3 < 1:4 10􀀀3 GeV=s, which corresponds to a decay lifetime 3=m3 > 2:4 10􀀀12 s=eV , improving a previous MINOS measurement who is 3=m3 > 2:1 10􀀀12 s=eV . === Usamos dados de e produzidos da linha de feixe do experimento MINOS publicados recentemente em uma análise de desaparecimento de neutrinos muônicos utilizando dados completos de neutrinos e antineutrinos da linha de feixe e atmosféricos. Estabelecemos limites sobre a razão tempo de vida por massa do neutrino para o modelo de oscilação com decaimento. Obtivemos da análise um limite superior de 3 < 1;4 10􀀀3 GeV=s, que corresponde a um tempo de vida de 3=m3 > 2;4 10􀀀12 s=eV no limite inferior, melhorando a medida anterior do MINOS que era de 3=m3 > 2;1 10􀀀12 s=eV .