Husek, T. et al. (2018) Search for heavy neutral lepton production in K+ decays. Physics Letters B, 778, pp. 137-145. (doi: 10.1016/j.physletb.2018.01.031)
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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 |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.
| Item Type: | Articles |
|---|---|
| Additional Information: | SCOAP3. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Angelucci, Dr Bruno and Protopopescu, Dr Dan and Britton, Professor David |
| Authors: | Husek, T., Kampf, K., Cotta Ramusino, A., Fiorini, M., Gamberini, E., Gianoli, A., Neri, I., Petrucci, F., Bizzeti, A., Bucci, F., Iacopini, E., Latino, G., Lenti, M., Volpe, R., antonelli, a., Lamanna, G., Lanfranchi, G., David Moulson, M., Raggi, M., Spadaro, T., Ambrosino, F., Di Filippo, D., Massarotti, P., Mirra, M., Napolitano, M., Saracino, G., Anzivino, G., Santoni, C., Barbanera, M., Cenci, P., Duk, V., Lupi, M., Pepe, M., Piccini, M., lubrano, p., Costantini, F., GIORGI, M., Giudici, S., Pinzino, J., Pontisso, L., Sozzi, M., mannelli, i., Fantechi, R., Spinella, F., Biagioni, A., D'Agostini, G., Leonardi, E., Lonardo, A., Valente, P., Vicini, P., Ammendola, R., Bonaiuto, V., Federici, L., Salamon, A., Sargeni, F., Arcidiacono, R., Biino, C., Bloch-Devaux, B., Filippi, A., Pietro Marchetto, F., Menichetti, E., Migliore, E., Soldi, D., Zinchenko, A., Gushchin, E., D'Albrich, B., Lurkin, N., Sergi, A., Heath, H., Fry, J., Massri, K., NA62 Collaboration, , Angelucci, B., Britton, D., and Protopopescu, D. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Physics Letters B |
| Publisher: | Elsevier |
| ISSN: | 0031-9163 |
| ISSN (Online): | 1873-2445 |
| Published Online: | 28 January 2018 |
| Copyright Holders: | Copyright © 2018 The Authors |
| First Published: | First published in Physics Letters B 778:137-145 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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