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Constraints from the CHARM experiment on heavy neutral leptons with tau mixing

Constraints from the CHARM experiment on heavy neutral leptons with tau mixing

Authors :
Boiarska, Iryna
Boyarsky, Alexey
Mikulenko, Oleksii
Ovchynnikov, Maksym
Boiarska, Iryna
Boyarsky, Alexey
Mikulenko, Oleksii
Ovchynnikov, Maksym
Source :
Boiarska , I , Boyarsky , A , Mikulenko , O & Ovchynnikov , M 2021 , ' Constraints from the CHARM experiment on heavy neutral leptons with tau mixing ' , Physical Review D , vol. 104 , no. 9 , 095019 .
Publication Year :
2021

Abstract

We reanalyze the results of the searches for Heavy Neutral Leptons (HNLs) by the CHARM experiment. We study HNL decay channel N -> e(+) e(-)nu/mu(+) mu(-)nu and show that, in addition to the constraints on the HNL's mixings with nu e or nu(mu), the same data also implies limits on the HNLs that mix only with nu(tau) and have masses in the range 290 MeV < m(N) less than or similar to 1.6 GeV: the region in the parameter space that was considered in the literature as a target for HNLs searches.

Details

Database :
OAIster
Journal :
Boiarska , I , Boyarsky , A , Mikulenko , O & Ovchynnikov , M 2021 , ' Constraints from the CHARM experiment on heavy neutral leptons with tau mixing ' , Physical Review D , vol. 104 , no. 9 , 095019 .
Notes :
application/pdf, English
Publication Type :
Electronic Resource
Accession number :
edsoai.on1322770160
Document Type :
Electronic Resource