Search for heavy neutrinos in K+→μ+ν decays

Evgueni Goudzovski; Cristina Lazzeroni; Nicolas Lurkin; Francis Newson; Angela Romano

doi:10.1016/j.physletb.2017.07.055

Search for heavy neutrinos in K+→μ+ν decays

Evgueni Goudzovski, Cristina Lazzeroni, Nicolas Lurkin, Francis Newson, Angela Romano

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

The NA62 experiment recorded a large sample of K+→μ+νμ decays in 2007. A peak search has been performed in the reconstructed missing mass spectrum. In the absence of a signal, limits in the range 2×10−6 to 10−5 have been set on the squared mixing matrix element |Uμ4|2 between muon and heavy neutrino states, for heavy neutrino masses in the range 300–375 MeV/c2. The result extends the range of masses for which upper limits have been set on the value of |Uμ4|2 in previous production search experiments.

Original language	English
Pages (from-to)	712–718
Journal	Physics Letters B
Volume	772
Early online date	27 Jul 2017
DOIs	https://doi.org/10.1016/j.physletb.2017.07.055
Publication status	Published - 2017

Keywords

Kaon decays
Heavy neutrinos

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10.1016/j.physletb.2017.07.055Licence: Creative Commons: Attribution (CC BY)

Ernest Rutherford Fellowship : Dr Antonio Sergi - Development of the NA62 Detector and Search for New Physics with Kaon Decays
Sergi, A.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
25/03/13 → 24/03/18
Project: Research Councils
NA62 Common Fund
Lazzeroni, C.
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
6/02/13 → 5/02/16
Project: Research Councils

Cite this

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title = "Search for heavy neutrinos in K+→μ+ν decays",

abstract = "The NA62 experiment recorded a large sample of K+→μ+νμ decays in 2007. A peak search has been performed in the reconstructed missing mass spectrum. In the absence of a signal, limits in the range 2×10−6 to 10−5 have been set on the squared mixing matrix element |Uμ4|2 between muon and heavy neutrino states, for heavy neutrino masses in the range 300–375 MeV/c2. The result extends the range of masses for which upper limits have been set on the value of |Uμ4|2 in previous production search experiments.",

keywords = "Kaon decays, Heavy neutrinos",

author = "Evgueni Goudzovski and Cristina Lazzeroni and Nicolas Lurkin and Francis Newson and Angela Romano",

year = "2017",

doi = "10.1016/j.physletb.2017.07.055",

language = "English",

volume = "772",

pages = "712–718",

journal = "Physics Letters B",

issn = "0370-2693",

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TY - JOUR

T1 - Search for heavy neutrinos in K+→μ+ν decays

AU - Goudzovski, Evgueni

AU - Lazzeroni, Cristina

AU - Lurkin, Nicolas

AU - Newson, Francis

AU - Romano, Angela

PY - 2017

Y1 - 2017

N2 - The NA62 experiment recorded a large sample of K+→μ+νμ decays in 2007. A peak search has been performed in the reconstructed missing mass spectrum. In the absence of a signal, limits in the range 2×10−6 to 10−5 have been set on the squared mixing matrix element |Uμ4|2 between muon and heavy neutrino states, for heavy neutrino masses in the range 300–375 MeV/c2. The result extends the range of masses for which upper limits have been set on the value of |Uμ4|2 in previous production search experiments.

AB - The NA62 experiment recorded a large sample of K+→μ+νμ decays in 2007. A peak search has been performed in the reconstructed missing mass spectrum. In the absence of a signal, limits in the range 2×10−6 to 10−5 have been set on the squared mixing matrix element |Uμ4|2 between muon and heavy neutrino states, for heavy neutrino masses in the range 300–375 MeV/c2. The result extends the range of masses for which upper limits have been set on the value of |Uμ4|2 in previous production search experiments.

KW - Kaon decays

KW - Heavy neutrinos

UR - http://www.sciencedirect.com/science/article/pii/S0370269317306111

U2 - 10.1016/j.physletb.2017.07.055

DO - 10.1016/j.physletb.2017.07.055

M3 - Article

SN - 0370-2693

VL - 772

SP - 712

EP - 718

JO - Physics Letters B

JF - Physics Letters B

ER -

Search for heavy neutrinos in K+→μ+ν decays

Abstract

Keywords

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Projects

Ernest Rutherford Fellowship : Dr Antonio Sergi - Development of the NA62 Detector and Search for New Physics with Kaon Decays

NA62 Common Fund

Cite this