Exploring CP-violating heavy neutrino oscillations in rare tau decays at Belle II

In this work, we study the lepton number violating tau decays via two intermediate on-shell Majorana neutrinos Nj into two charged pions and a charged lepton τ±→π±Nj→π±π±ℓ∓. We consider the scenario where the heavy neutrino masses are within 0.5 GeV≤MN≤1.5 GeV. We evaluated the possibility to measur...

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Main Authors: Sebastian Tapia, Jilberto Zamora-Saá
Format: Article
Language:English
Published: Elsevier 2020-03-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321320300225
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spelling doaj-f6f14f38d96c4341a05eda239cb903fc2020-11-25T02:11:24ZengElsevierNuclear Physics B0550-32132020-03-01952Exploring CP-violating heavy neutrino oscillations in rare tau decays at Belle IISebastian Tapia0Jilberto Zamora-Saá1Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USADepartamento de Ciencias Físicas, Universidad Andres Bello, Sazié 2212, Piso 7, Santiago, Chile; Corresponding author.In this work, we study the lepton number violating tau decays via two intermediate on-shell Majorana neutrinos Nj into two charged pions and a charged lepton τ±→π±Nj→π±π±ℓ∓. We consider the scenario where the heavy neutrino masses are within 0.5 GeV≤MN≤1.5 GeV. We evaluated the possibility to measure the modulation of the decay width along the detector length for these processes at tau factories, such as Belle II. We study some realistic conditions which could lead to the observation of this phenomenon at futures τ factories.http://www.sciencedirect.com/science/article/pii/S0550321320300225
collection DOAJ
language English
format Article
sources DOAJ
author Sebastian Tapia
Jilberto Zamora-Saá
spellingShingle Sebastian Tapia
Jilberto Zamora-Saá
Exploring CP-violating heavy neutrino oscillations in rare tau decays at Belle II
Nuclear Physics B
author_facet Sebastian Tapia
Jilberto Zamora-Saá
author_sort Sebastian Tapia
title Exploring CP-violating heavy neutrino oscillations in rare tau decays at Belle II
title_short Exploring CP-violating heavy neutrino oscillations in rare tau decays at Belle II
title_full Exploring CP-violating heavy neutrino oscillations in rare tau decays at Belle II
title_fullStr Exploring CP-violating heavy neutrino oscillations in rare tau decays at Belle II
title_full_unstemmed Exploring CP-violating heavy neutrino oscillations in rare tau decays at Belle II
title_sort exploring cp-violating heavy neutrino oscillations in rare tau decays at belle ii
publisher Elsevier
series Nuclear Physics B
issn 0550-3213
publishDate 2020-03-01
description In this work, we study the lepton number violating tau decays via two intermediate on-shell Majorana neutrinos Nj into two charged pions and a charged lepton τ±→π±Nj→π±π±ℓ∓. We consider the scenario where the heavy neutrino masses are within 0.5 GeV≤MN≤1.5 GeV. We evaluated the possibility to measure the modulation of the decay width along the detector length for these processes at tau factories, such as Belle II. We study some realistic conditions which could lead to the observation of this phenomenon at futures τ factories.
url http://www.sciencedirect.com/science/article/pii/S0550321320300225
work_keys_str_mv AT sebastiantapia exploringcpviolatingheavyneutrinooscillationsinraretaudecaysatbelleii
AT jilbertozamorasaa exploringcpviolatingheavyneutrinooscillationsinraretaudecaysatbelleii
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