Main Image

PoS(FPCP2017)004

NA48/62 latest results

R. Marchevski, on behalf of the NA62 Collaboration, F. Ambrosino, R. Aliberti, R. Ammendola, B. Angelucci, A. Antonelli, G. Anzivino, R. Arcidiacono, M. Barbanera, A. Biagioni, L. Bician, C. Biino, A. Bizzeti, T. Blazek, B. Bloch-Devaux, V. Bonaiuto, M. Boretto, M. Bragadireanu, D. Britton, F. Brizioli, M.B. Brunetti, D. Bryman, F. Bucci, T. Capussela, A. Ceccucci, P. Cenci, V. Cerny, C. Cerri, B. Checcucci, A. Conovaloff, P. Cooper, M. Corvino, F. Costantini, D. Coward, G. D'Agostini, J. Dainton, P. Dalpiaz, H. Danielsson, N. Doble, B. Dobrich, F. Duval, V. Duk, J. Engelfried, T. Enik, N. Estrada-Tristan, V. Falaleev, R. Fantechi, V. Fascianelli, L. Federici, S. Fedotov, A. Filippi, M. Fiorini, J. Fry, J. Fu, A. Fucci, L. Fulton, E. Gamberini, L. Gatignon, G. Georgiev, S. Ghinescu, A. Gianoli, M. Giorgi, S. Giudici, F. Gonnella, E. Goudzovski, C. Graham, R. Guida, E. Gushchin, F. Hahn, H. Heath, T. Husek, O. Hutanu, D. Hutchcroft, L. Iacobuzio, E. Iacopini, E. Imbergamo, B. Jenninger, K. Kampf, V. Kekelidze, S. Kholodenko, G. Khoriauli, A. Khotyantsev, A. Kleimenova, A. Korotkova, M. Koval, V. Kozhuharov, Z. Kucerova, Y.G. Kudenko, J. Kunze, V. Kurochka, G. Lanfranchi, G. Lamanna, G. Latino, P. Laycock, C. Lazzeroni, M. Lenti, E. Leonardi, P. Lichard, L. Litov, R. Lollini, D. Lomidze, A. Lonardo, P. Lubrano, M. Lupi, N. Lurkin, D. Madigozhin, I. Mannelli, G. Mannocchi, A. Mapelli, F. Marchetto, S. Martellotti, P. Massarotti, K. Massri, E. Maurice, M. Medvedeva, A. Mefodev, E. Menichetti, E. Migliore, E. Minucci, M. Mirra, M. Misheva, N. Molokanova, M. Moulson, S. Movchan, M. Napolitano, I. Neri, F. Newson, A. Norton, M. Noy, T. Numao, V. Obraztsov, A. Ostankov, S. Padolski, R.D. Page, V. Palladino, C. Parkinson, E. Pedreschi, M. Pepe, M. Perrin-Terrin, L. Peruzzo, P. Petrov, F. Petrucci, R. Piandani, M. Piccini, J. Pinzino, I. Polenkevich, L. Pontisso, Y. Potrebenikov, D. Protopopescu, M. Raggi, A. Romano, P. Rubin, G. Ruggiero, V. Ryjov, A. Salamon, C. Santoni, G. Saracino, F. Sargeni, V. Semenov, A. Sergi, A. Shaikhiev, S. Shkarovskiy, D. Soldi, V. Sougonyaev, M. Sozzi, T. Spadaro, F. Spinella, A. Sturgess, J. Swallow, S. Trilov, P. Valente, B. Velghe, S. Venditti, P. Vicini, R. Volpe, M. Vormstein, H. Wahl, R. Wanke, B. Wrona, O. Yushchenko, M. Zamkovsky, A. Zinchenko, G. Lehmann Miotto, V. Kurshetsov, L. Di Lella, D. Di Filippo, N. De Simone, A. Cotta Ramusino, E. Cortina Gil

in The 15th International Conference on Flavor Physics & CP Violation

Contribution: pdf

Abstract

The NA62 experiment at the CERN SPS recorded in 2007 a large sample of
$K^+ \rightarrow \mu^+ \nu_\mu $ decays. A peak search in the missing
mass spectrum of this decay is performed. In the absence of observed
signal, the limits obtained on $\mathcal{B}(K^+ \rightarrow \mu^+ \nu_h )$ and
on the mixing matrix element $|U_{\mu4}|$ are reported. The upgraded
NA62 experiment started data taking in 2015. About 5$\times 10^{11}
K^+$ decays have been recorded so far to measure the branching ratio
of the $K^+ \rightarrow \pi^+ \nu\overline{\nu}$ decay. Preliminary
results from the $K^+ \rightarrow \pi^+ \nu\overline{\nu}$ analysis
based on about 5$\%$ of the 2016 statistics are reported.