Test of Lepton Flavour Universality in $K^{+} \to l^{+}\nu$ Decays

A precision test of lepton flavour universality has been performed by measuring the ratio RK of kaon leptonic decay rates K+ --> e+nu and K+ --> mu+nu in a sample of 59813 reconstructed K+ --> e+nu candidates with (8.71 +- 0.24)% background contamination. The result RK = (2.487 +- 0.013) *...

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Detalles Bibliográficos
Autores principales: Lazzeroni, C., Romano, A., Ceccucci, A., Danielsson, H., Falaleev, V., Gatignon, L., Goy Lopez, S., Hallgren, B., Maier, A., Peters, A., Piccini, M., Riedler, P., Dyulendarova, M., Frabetti, P.L., Kekelidze, V., Madigozhin, D., Marinova, E., Molokanova, N., Movchan, S., Potrebenikov, Yu., Shkarovskiy, S., Zinchenko, A., Rubin, P., Baldini, W., Cotta Ramusino, A., Dalpiaz, P., Fiorini, M., Gianoli, A., Norton, A., Petrucci, F., Savrie, M., Wahl, H., Bizzeti, A., Bucci, F., Iacopini, E., Lenti, M., Veltri, M., Antonelli, A., Moulson, M., Raggi, M., Spadaro, T., Eppard, K., Hita-Hochgesand, M., Kleinknecht, K., Renk, B., Wanke, R., Winhart, A., Winston, R., Bolotov, V., Duk, V., Gushchin, E., Ambrosino, F., Di Filippo, D., Massarotti, P., Napolitano, M., Palladino, V., Saracino, G., Anzivino, G., Imbergamo, E., Piandani, R., Sergi, A., Cenci, P., Pepe, M., Costantini, F., Doble, N., Giudici, S., Pierazzini, G., Sozzi, M., Venditti, S., Balev, S., Collazuol, G., DiLella, L., Gallorini, S., Goudzovski, E., Lamanna, G., Mannelli, I., Ruggiero, G., Cerri, C., Fantechi, R., Kurshetsov, V., Obraztsov, V., Popov, I., Semenov, V., Yushchenko, O., D'Agostini, G., Leonardi, E., Serra, M., Valente, P., Fucci, A., Salamon, A., Bloch-Devaux, B., Peyaud, B., Engelfried, J., Coward, D., Kozhuharov, V., Litov, L., Arcidiacono, R., Bifani, S., Biino, C., Dellacasa, G., Marchetto, F., Numao, T., Retiere, F.
Lenguaje:eng
Publicado: 2011
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2011.02.064
http://cds.cern.ch/record/1320930
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author Lazzeroni, C.
Romano, A.
Ceccucci, A.
Danielsson, H.
Falaleev, V.
Gatignon, L.
Goy Lopez, S.
Hallgren, B.
Maier, A.
Peters, A.
Piccini, M.
Riedler, P.
Dyulendarova, M.
Frabetti, P.L.
Kekelidze, V.
Madigozhin, D.
Marinova, E.
Molokanova, N.
Movchan, S.
Potrebenikov, Yu.
Shkarovskiy, S.
Zinchenko, A.
Rubin, P.
Baldini, W.
Cotta Ramusino, A.
Dalpiaz, P.
Fiorini, M.
Gianoli, A.
Norton, A.
Petrucci, F.
Savrie, M.
Wahl, H.
Bizzeti, A.
Bucci, F.
Iacopini, E.
Lenti, M.
Veltri, M.
Antonelli, A.
Moulson, M.
Raggi, M.
Spadaro, T.
Eppard, K.
Hita-Hochgesand, M.
Kleinknecht, K.
Renk, B.
Wanke, R.
Winhart, A.
Winston, R.
Bolotov, V.
Duk, V.
Gushchin, E.
Ambrosino, F.
Di Filippo, D.
Massarotti, P.
Napolitano, M.
Palladino, V.
Saracino, G.
Anzivino, G.
Imbergamo, E.
Piandani, R.
Sergi, A.
Cenci, P.
Pepe, M.
Costantini, F.
Doble, N.
Giudici, S.
Pierazzini, G.
Sozzi, M.
Venditti, S.
Balev, S.
Collazuol, G.
DiLella, L.
Gallorini, S.
Goudzovski, E.
Lamanna, G.
Mannelli, I.
Ruggiero, G.
Cerri, C.
Fantechi, R.
Kurshetsov, V.
Obraztsov, V.
Popov, I.
Semenov, V.
Yushchenko, O.
D'Agostini, G.
Leonardi, E.
Serra, M.
Valente, P.
Fucci, A.
Salamon, A.
Bloch-Devaux, B.
Peyaud, B.
Engelfried, J.
Coward, D.
Kozhuharov, V.
Litov, L.
Arcidiacono, R.
Bifani, S.
Biino, C.
Dellacasa, G.
Marchetto, F.
Numao, T.
Retiere, F.
author_facet Lazzeroni, C.
Romano, A.
Ceccucci, A.
Danielsson, H.
Falaleev, V.
Gatignon, L.
Goy Lopez, S.
Hallgren, B.
Maier, A.
Peters, A.
Piccini, M.
Riedler, P.
Dyulendarova, M.
Frabetti, P.L.
Kekelidze, V.
Madigozhin, D.
Marinova, E.
Molokanova, N.
Movchan, S.
Potrebenikov, Yu.
Shkarovskiy, S.
Zinchenko, A.
Rubin, P.
Baldini, W.
Cotta Ramusino, A.
Dalpiaz, P.
Fiorini, M.
Gianoli, A.
Norton, A.
Petrucci, F.
Savrie, M.
Wahl, H.
Bizzeti, A.
Bucci, F.
Iacopini, E.
Lenti, M.
Veltri, M.
Antonelli, A.
Moulson, M.
Raggi, M.
Spadaro, T.
Eppard, K.
Hita-Hochgesand, M.
Kleinknecht, K.
Renk, B.
Wanke, R.
Winhart, A.
Winston, R.
Bolotov, V.
Duk, V.
Gushchin, E.
Ambrosino, F.
Di Filippo, D.
Massarotti, P.
Napolitano, M.
Palladino, V.
Saracino, G.
Anzivino, G.
Imbergamo, E.
Piandani, R.
Sergi, A.
Cenci, P.
Pepe, M.
Costantini, F.
Doble, N.
Giudici, S.
Pierazzini, G.
Sozzi, M.
Venditti, S.
Balev, S.
Collazuol, G.
DiLella, L.
Gallorini, S.
Goudzovski, E.
Lamanna, G.
Mannelli, I.
Ruggiero, G.
Cerri, C.
Fantechi, R.
Kurshetsov, V.
Obraztsov, V.
Popov, I.
Semenov, V.
Yushchenko, O.
D'Agostini, G.
Leonardi, E.
Serra, M.
Valente, P.
Fucci, A.
Salamon, A.
Bloch-Devaux, B.
Peyaud, B.
Engelfried, J.
Coward, D.
Kozhuharov, V.
Litov, L.
Arcidiacono, R.
Bifani, S.
Biino, C.
Dellacasa, G.
Marchetto, F.
Numao, T.
Retiere, F.
author_sort Lazzeroni, C.
collection CERN
description A precision test of lepton flavour universality has been performed by measuring the ratio RK of kaon leptonic decay rates K+ --> e+nu and K+ --> mu+nu in a sample of 59813 reconstructed K+ --> e+nu candidates with (8.71 +- 0.24)% background contamination. The result RK = (2.487 +- 0.013) * 10^{-5} is in agreement with the Standard Model expectation.
id cern-1320930
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
record_format invenio
spelling cern-13209302023-08-03T03:41:18Zdoi:10.1016/j.physletb.2011.02.064http://cds.cern.ch/record/1320930engLazzeroni, C.Romano, A.Ceccucci, A.Danielsson, H.Falaleev, V.Gatignon, L.Goy Lopez, S.Hallgren, B.Maier, A.Peters, A.Piccini, M.Riedler, P.Dyulendarova, M.Frabetti, P.L.Kekelidze, V.Madigozhin, D.Marinova, E.Molokanova, N.Movchan, S.Potrebenikov, Yu.Shkarovskiy, S.Zinchenko, A.Rubin, P.Baldini, W.Cotta Ramusino, A.Dalpiaz, P.Fiorini, M.Gianoli, A.Norton, A.Petrucci, F.Savrie, M.Wahl, H.Bizzeti, A.Bucci, F.Iacopini, E.Lenti, M.Veltri, M.Antonelli, A.Moulson, M.Raggi, M.Spadaro, T.Eppard, K.Hita-Hochgesand, M.Kleinknecht, K.Renk, B.Wanke, R.Winhart, A.Winston, R.Bolotov, V.Duk, V.Gushchin, E.Ambrosino, F.Di Filippo, D.Massarotti, P.Napolitano, M.Palladino, V.Saracino, G.Anzivino, G.Imbergamo, E.Piandani, R.Sergi, A.Cenci, P.Pepe, M.Costantini, F.Doble, N.Giudici, S.Pierazzini, G.Sozzi, M.Venditti, S.Balev, S.Collazuol, G.DiLella, L.Gallorini, S.Goudzovski, E.Lamanna, G.Mannelli, I.Ruggiero, G.Cerri, C.Fantechi, R.Kurshetsov, V.Obraztsov, V.Popov, I.Semenov, V.Yushchenko, O.D'Agostini, G.Leonardi, E.Serra, M.Valente, P.Fucci, A.Salamon, A.Bloch-Devaux, B.Peyaud, B.Engelfried, J.Coward, D.Kozhuharov, V.Litov, L.Arcidiacono, R.Bifani, S.Biino, C.Dellacasa, G.Marchetto, F.Numao, T.Retiere, F.Test of Lepton Flavour Universality in $K^{+} \to l^{+}\nu$ DecaysParticle Physics - ExperimentA precision test of lepton flavour universality has been performed by measuring the ratio RK of kaon leptonic decay rates K+ --> e+nu and K+ --> mu+nu in a sample of 59813 reconstructed K+ --> e+nu candidates with (8.71 +- 0.24)% background contamination. The result RK = (2.487 +- 0.013) * 10^{-5} is in agreement with the Standard Model expectation.A precision test of lepton flavour universality has been performed by measuring the ratio RK of kaon leptonic decay rates K+→e+ν and K+→μ+ν in a sample of 59 813 reconstructed K+→e+ν candidates with (8.71±0.24)% background contamination. The result RK=(2.487±0.013)×10−5 is in agreement with the Standard Model expectation.A precision test of lepton flavour universality has been performed by measuring the ratio RK of kaon leptonic decay rates K+ --> e+nu and K+ --> mu+nu in a sample of 59813 reconstructed K+ --> e+nu candidates with (8.71 +- 0.24)% background contamination. The result RK = (2.487 +- 0.013) * 10^{-5} is in agreement with the Standard Model expectation.arXiv:1101.4805CERN-PH-EP-2011-004CERN-PH-EP-2011-004oai:cds.cern.ch:13209302011-01-26
spellingShingle Particle Physics - Experiment
Lazzeroni, C.
Romano, A.
Ceccucci, A.
Danielsson, H.
Falaleev, V.
Gatignon, L.
Goy Lopez, S.
Hallgren, B.
Maier, A.
Peters, A.
Piccini, M.
Riedler, P.
Dyulendarova, M.
Frabetti, P.L.
Kekelidze, V.
Madigozhin, D.
Marinova, E.
Molokanova, N.
Movchan, S.
Potrebenikov, Yu.
Shkarovskiy, S.
Zinchenko, A.
Rubin, P.
Baldini, W.
Cotta Ramusino, A.
Dalpiaz, P.
Fiorini, M.
Gianoli, A.
Norton, A.
Petrucci, F.
Savrie, M.
Wahl, H.
Bizzeti, A.
Bucci, F.
Iacopini, E.
Lenti, M.
Veltri, M.
Antonelli, A.
Moulson, M.
Raggi, M.
Spadaro, T.
Eppard, K.
Hita-Hochgesand, M.
Kleinknecht, K.
Renk, B.
Wanke, R.
Winhart, A.
Winston, R.
Bolotov, V.
Duk, V.
Gushchin, E.
Ambrosino, F.
Di Filippo, D.
Massarotti, P.
Napolitano, M.
Palladino, V.
Saracino, G.
Anzivino, G.
Imbergamo, E.
Piandani, R.
Sergi, A.
Cenci, P.
Pepe, M.
Costantini, F.
Doble, N.
Giudici, S.
Pierazzini, G.
Sozzi, M.
Venditti, S.
Balev, S.
Collazuol, G.
DiLella, L.
Gallorini, S.
Goudzovski, E.
Lamanna, G.
Mannelli, I.
Ruggiero, G.
Cerri, C.
Fantechi, R.
Kurshetsov, V.
Obraztsov, V.
Popov, I.
Semenov, V.
Yushchenko, O.
D'Agostini, G.
Leonardi, E.
Serra, M.
Valente, P.
Fucci, A.
Salamon, A.
Bloch-Devaux, B.
Peyaud, B.
Engelfried, J.
Coward, D.
Kozhuharov, V.
Litov, L.
Arcidiacono, R.
Bifani, S.
Biino, C.
Dellacasa, G.
Marchetto, F.
Numao, T.
Retiere, F.
Test of Lepton Flavour Universality in $K^{+} \to l^{+}\nu$ Decays
title Test of Lepton Flavour Universality in $K^{+} \to l^{+}\nu$ Decays
title_full Test of Lepton Flavour Universality in $K^{+} \to l^{+}\nu$ Decays
title_fullStr Test of Lepton Flavour Universality in $K^{+} \to l^{+}\nu$ Decays
title_full_unstemmed Test of Lepton Flavour Universality in $K^{+} \to l^{+}\nu$ Decays
title_short Test of Lepton Flavour Universality in $K^{+} \to l^{+}\nu$ Decays
title_sort test of lepton flavour universality in $k^{+} \to l^{+}\nu$ decays
topic Particle Physics - Experiment
url https://dx.doi.org/10.1016/j.physletb.2011.02.064
http://cds.cern.ch/record/1320930
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