Search for heavy neutral lepton production in K+ decays

E. Cortina Gil; E. Minucci; S. Padolski; P. Petrov; B. Velghe; G. Georgiev; V. Kozhuharov; L. Litov; T. Numao; D. Bryman; J. Fu; T. Husek; K. Kampf; M. Zamkovsky; R. Aliberti; G. Khoriauli; J. Kunze; D. Lomidze; R. Marchevski; L. Peruzzo; M. Vormstein; R. Wanke; P. Dalpiaz; M. Fiorini; E. Gamberini; I. Neri; A. Norton; F. Petrucci; H. Wahl; A. Cotta Ramusino; A. Gianoli; E. Iacopini; G. Latino; M. Lenti; A. Bizzeti; F. Bucci; R. Volpe; A. Antonelli; F. Gonnella; G. Lamanna; G. Lanfranchi; G. Mannocchi; S. Martellotti; M. Moulson; M. Raggi; T. Spadaro; F. Ambrosino; H. Heath; R. Page; S. Trilov; The NA62 Collaboration

doi:10.1016/j.physletb.2018.01.031

Search for heavy neutral lepton production in K⁺ decays

E. Cortina Gil, E. Minucci, S. Padolski, P. Petrov, B. Velghe, G. Georgiev, V. Kozhuharov, L. Litov, T. Numao, D. Bryman, J. Fu, T. Husek, K. Kampf, M. Zamkovsky, R. Aliberti, G. Khoriauli, J. Kunze, D. Lomidze, R. Marchevski, L. PeruzzoM. Vormstein, R. Wanke, P. Dalpiaz, M. Fiorini, E. Gamberini, I. Neri, A. Norton, F. Petrucci, H. Wahl, A. Cotta Ramusino, A. Gianoli, E. Iacopini, G. Latino, M. Lenti, A. Bizzeti, F. Bucci, R. Volpe, A. Antonelli, F. Gonnella, G. Lamanna, G. Lanfranchi, G. Mannocchi, S. Martellotti, M. Moulson, M. Raggi, T. Spadaro, F. Ambrosino, H. Heath, R. Page, S. Trilov, The NA62 Collaboration

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Abstract

A search for heavy neutral lepton production in K⁺ decays using a data sample collected with a minimum bias trigger by the NA62 experiment at CERN in 2015 is reported. Upper limits at the 10⁻⁷ to 10⁻⁶ level are established on the elements of the extended neutrino mixing matrix |U_e4|² and |U_μ4|² for heavy neutral lepton mass in the ranges 170–448 MeV/c² and 250–373 MeV/c², respectively. This improves on the previous limits from HNL production searches over the whole mass range considered for |U_e4|², and above 300 MeV/c² for |U_μ4|².

Original language	English
Pages (from-to)	137-145
Number of pages	9
Journal	Physics Letters B
Volume	778
Early online date	28 Jan 2018
DOIs	https://doi.org/10.1016/j.physletb.2018.01.031
Publication status	Published - 10 Mar 2018

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Cortina Gil, E., Minucci, E., Padolski, S., Petrov, P., Velghe, B., Georgiev, G., Kozhuharov, V., Litov, L., Numao, T., Bryman, D., Fu, J., Husek, T., Kampf, K., Zamkovsky, M., Aliberti, R., Khoriauli, G., Kunze, J., Lomidze, D., Marchevski, R., ... The NA62 Collaboration (2018). Search for heavy neutral lepton production in K⁺ decays. Physics Letters B, 778, 137-145. https://doi.org/10.1016/j.physletb.2018.01.031

@article{634a4d55a5414bc482ccbf03dca2cee3,

title = "Search for heavy neutral lepton production in K+ decays",

abstract = "A search for heavy neutral lepton production in K+ decays using a data sample collected with a minimum bias trigger by the NA62 experiment at CERN in 2015 is reported. Upper limits at the 10−7 to 10−6 level are established on the elements of the extended neutrino mixing matrix |Ue4|2 and |Uμ4|2 for heavy neutral lepton mass in the ranges 170–448 MeV/c2 and 250–373 MeV/c2, respectively. This improves on the previous limits from HNL production searches over the whole mass range considered for |Ue4|2, and above 300 MeV/c2 for |Uμ4|2.",

author = "{Cortina Gil}, E. and E. Minucci and S. Padolski and P. Petrov and B. Velghe and G. Georgiev and V. Kozhuharov and L. Litov and T. Numao and D. Bryman and J. Fu and T. Husek and K. Kampf and M. Zamkovsky and R. Aliberti and G. Khoriauli and J. Kunze and D. Lomidze and R. Marchevski and L. Peruzzo and M. Vormstein and R. Wanke and P. Dalpiaz and M. Fiorini and E. Gamberini and I. Neri and A. Norton and F. Petrucci and H. Wahl and {Cotta Ramusino}, A. and A. Gianoli and E. Iacopini and G. Latino and M. Lenti and A. Bizzeti and F. Bucci and R. Volpe and A. Antonelli and F. Gonnella and G. Lamanna and G. Lanfranchi and G. Mannocchi and S. Martellotti and M. Moulson and M. Raggi and T. Spadaro and F. Ambrosino and H. Heath and R. Page and S. Trilov and {The NA62 Collaboration}",

year = "2018",

month = mar,

day = "10",

doi = "10.1016/j.physletb.2018.01.031",

language = "English",

volume = "778",

pages = "137--145",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "North-Holland Publishing Company",

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Cortina Gil, E, Minucci, E, Padolski, S, Petrov, P, Velghe, B, Georgiev, G, Kozhuharov, V, Litov, L, Numao, T, Bryman, D, Fu, J, Husek, T, Kampf, K, Zamkovsky, M, Aliberti, R, Khoriauli, G, Kunze, J, Lomidze, D, Marchevski, R, Peruzzo, L, Vormstein, M, Wanke, R, Dalpiaz, P, Fiorini, M, Gamberini, E, Neri, I, Norton, A, Petrucci, F, Wahl, H, Cotta Ramusino, A, Gianoli, A, Iacopini, E, Latino, G, Lenti, M, Bizzeti, A, Bucci, F, Volpe, R, Antonelli, A, Gonnella, F, Lamanna, G, Lanfranchi, G, Mannocchi, G, Martellotti, S, Moulson, M, Raggi, M, Spadaro, T, Ambrosino, F, Heath, H, Page, R, Trilov, S & The NA62 Collaboration 2018, 'Search for heavy neutral lepton production in K⁺ decays', Physics Letters B, vol. 778, pp. 137-145. https://doi.org/10.1016/j.physletb.2018.01.031

TY - JOUR

T1 - Search for heavy neutral lepton production in K+ decays

AU - Cortina Gil, E.

AU - Minucci, E.

AU - Padolski, S.

AU - Petrov, P.

AU - Velghe, B.

AU - Georgiev, G.

AU - Kozhuharov, V.

AU - Litov, L.

AU - Numao, T.

AU - Bryman, D.

AU - Fu, J.

AU - Husek, T.

AU - Kampf, K.

AU - Zamkovsky, M.

AU - Aliberti, R.

AU - Khoriauli, G.

AU - Kunze, J.

AU - Lomidze, D.

AU - Marchevski, R.

AU - Peruzzo, L.

AU - Vormstein, M.

AU - Wanke, R.

AU - Dalpiaz, P.

AU - Fiorini, M.

AU - Gamberini, E.

AU - Neri, I.

AU - Norton, A.

AU - Petrucci, F.

AU - Wahl, H.

AU - Cotta Ramusino, A.

AU - Gianoli, A.

AU - Iacopini, E.

AU - Latino, G.

AU - Lenti, M.

AU - Bizzeti, A.

AU - Bucci, F.

AU - Volpe, R.

AU - Antonelli, A.

AU - Gonnella, F.

AU - Lamanna, G.

AU - Lanfranchi, G.

AU - Mannocchi, G.

AU - Martellotti, S.

AU - Moulson, M.

AU - Raggi, M.

AU - Spadaro, T.

AU - Ambrosino, F.

AU - Heath, H.

AU - Page, R.

AU - Trilov, S.

AU - The NA62 Collaboration

PY - 2018/3/10

Y1 - 2018/3/10

N2 - A search for heavy neutral lepton production in K+ decays using a data sample collected with a minimum bias trigger by the NA62 experiment at CERN in 2015 is reported. Upper limits at the 10−7 to 10−6 level are established on the elements of the extended neutrino mixing matrix |Ue4|2 and |Uμ4|2 for heavy neutral lepton mass in the ranges 170–448 MeV/c2 and 250–373 MeV/c2, respectively. This improves on the previous limits from HNL production searches over the whole mass range considered for |Ue4|2, and above 300 MeV/c2 for |Uμ4|2.

AB - A search for heavy neutral lepton production in K+ decays using a data sample collected with a minimum bias trigger by the NA62 experiment at CERN in 2015 is reported. Upper limits at the 10−7 to 10−6 level are established on the elements of the extended neutrino mixing matrix |Ue4|2 and |Uμ4|2 for heavy neutral lepton mass in the ranges 170–448 MeV/c2 and 250–373 MeV/c2, respectively. This improves on the previous limits from HNL production searches over the whole mass range considered for |Ue4|2, and above 300 MeV/c2 for |Uμ4|2.

UR - http://www.scopus.com/inward/record.url?scp=85043584982&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2018.01.031

DO - 10.1016/j.physletb.2018.01.031

M3 - Article (Academic Journal)

AN - SCOPUS:85043584982

SN - 0370-2693

VL - 778

SP - 137

EP - 145

JO - Physics Letters B

JF - Physics Letters B

ER -

Search for heavy neutral lepton production in K⁺ decays

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Bristol Consolidated Grant 2015-9

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Search for heavy neutral lepton production in K+ decays

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Search for heavy neutral lepton production in K⁺ decays