Test of lepton flavour universality in K+→ℓ+ν decays

C. Lazzeroni; A. Romano; A. Ceccucci; H. Danielsson; V. Falaleev; L. Gatignon; S. Goy Lopez; B. Hallgren; A. Maier; A. Peters; M. Piccini; P. Riedler; M. Dyulendarova; P. L. Frabetti; V. Kekelidze; D. Madigozhin; E. Marinova; N. Molokanova; S. Movchan; Y. Potrebenikov; S. Shkarovskiy; A. Zinchenko; P. Rubin; W. Baldini; A. Cotta Ramusino; P. Dalpiaz; M. Fiorini; A. Gianoli; A. Norton; F. Petrucci; M. Savrié; H. Wahl; A. Bizzeti; F. Bucci; E. Iacopini; M. Lenti; M. Veltri; A. Antonelli; M. Moulson; M. Raggi; T. Spadaro; K. Eppard; M. Hita-Hochgesand; K. Kleinknecht; B. Renk; R. Wanke; A. Winhart; R. Winston; V. Bolotov; V. Duk; E. Gushchin; F. Ambrosino; D. Di Filippo; P. Massarotti; M. Napolitano; V. Palladino; G. Saracino; G. Anzivino; E. Imbergamo; R. Piandani; A. Sergi; P. Cenci; M. Pepe; F. Costantini; N. Doble; S. Giudici; G. Pierazzini; M. Sozzi; S. Venditti; S. Balev; G. Collazuol; L. DiLella; S. Gallorini; E. Goudzovski; G. Lamanna; I. Mannelli; G. Ruggiero; C. Cerri; R. Fantechi; V. Kurshetsov; V. Obraztsov; I. Popov; V. Semenov; O. Yushchenko; G. D'Agostini; E. Leonardi; M. Serra; P. Valente; A. Fucci; A. Salamon; B. Bloch-Devaux; B. Peyaud; J. Engelfried; D. Coward; V. Kozhuharov; L. Litov; R. Arcidiacono; S. Bifani; C. Biino; G. Dellacasa; F. Marchetto; T. Numao; F. Retiere

doi:10.1016/j.physletb.2011.02.064

Test of lepton flavour universality in K⁺→ℓ⁺ν decays

C. Lazzeroni
, A. Romano
, A. Ceccucci
, H. Danielsson
, V. Falaleev
, L. Gatignon
, S. Goy Lopez
, B. Hallgren
, A. Maier
, A. Peters
, M. Piccini
, P. Riedler
, M. Dyulendarova
, P. L. Frabetti
, V. Kekelidze
, D. Madigozhin
, E. Marinova
, N. Molokanova
, S. Movchan
, Y. Potrebenikov

S. Shkarovskiy, A. Zinchenko, P. Rubin, W. Baldini, A. Cotta Ramusino, P. Dalpiaz, M. Fiorini, A. Gianoli, A. Norton, F. Petrucci, M. Savrié, H. Wahl, A. Bizzeti, F. Bucci, E. Iacopini, M. Lenti, M. Veltri, A. Antonelli, M. Moulson, M. Raggi, T. Spadaro, K. Eppard, M. Hita-Hochgesand, K. Kleinknecht, B. Renk, R. Wanke, A. Winhart, R. Winston, V. Bolotov, V. Duk, E. Gushchin, F. Ambrosino, D. Di Filippo, P. Massarotti, M. Napolitano, V. Palladino, G. Saracino, G. Anzivino, E. Imbergamo, R. Piandani, A. Sergi, P. Cenci, M. Pepe, F. Costantini, N. Doble, S. Giudici, G. Pierazzini, M. Sozzi, S. Venditti, S. Balev, G. Collazuol, L. DiLella, S. Gallorini, E. Goudzovski, G. Lamanna, I. Mannelli, G. Ruggiero, C. Cerri, R. Fantechi, V. Kurshetsov, V. Obraztsov, I. Popov, V. Semenov, O. Yushchenko, G. D'Agostini, E. Leonardi, M. Serra, P. Valente, A. Fucci, A. Salamon, B. Bloch-Devaux, B. Peyaud, J. Engelfried, D. Coward, V. Kozhuharov, L. Litov, R. Arcidiacono, S. Bifani, C. Biino, G. Dellacasa, F. Marchetto, T. Numao, F. Retiere

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

Abstract

A precision test of lepton flavour universality has been performed by measuring the ratio R_K of kaon leptonic decay rates K⁺→e⁺ν and K⁺→μ⁺νin a sample of 59813 reconstructed K+→ℓ+ν candidates with (8.71±0.24)% background contamination. The result R_K=(2.487±0.013)×10^-5 is in agreement with the Standard Model expectation.

Original language	English
Pages (from-to)	105-114
Number of pages	10
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	698
Issue number	2
DOIs	https://doi.org/10.1016/j.physletb.2011.02.064
Publication status	Published - 4 Apr 2011
Externally published	Yes

Keywords

Lepton universality
Leptonic kaon decay

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10.1016/j.physletb.2011.02.064

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Lazzeroni, C., Romano, A., Ceccucci, A., Danielsson, H., Falaleev, V., Gatignon, L., Lopez, S. G., 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., ... Retiere, F. (2011). Test of lepton flavour universality in K⁺→ℓ⁺ν decays. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 698(2), 105-114. https://doi.org/10.1016/j.physletb.2011.02.064

@article{ac338e4c293e4ffb801905e3f9c53dae,

title = "Test of lepton flavour universality in K+→ℓ+ν decays",

abstract = "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+νin a sample of 59813 reconstructed K+→ℓ+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.",

keywords = "Lepton universality, Leptonic kaon decay",

author = "C. Lazzeroni and A. Romano and A. Ceccucci and H. Danielsson and V. Falaleev and L. Gatignon and Lopez, \{S. Goy\} and B. Hallgren and A. Maier and A. Peters and M. Piccini and P. Riedler and M. Dyulendarova and Frabetti, \{P. L.\} and V. Kekelidze and D. Madigozhin and E. Marinova and N. Molokanova and S. Movchan and Y. Potrebenikov and S. Shkarovskiy and A. Zinchenko and P. Rubin and W. Baldini and Ramusino, \{A. Cotta\} and P. Dalpiaz and M. Fiorini and A. Gianoli and A. Norton and F. Petrucci and M. Savri{\'e} and H. Wahl and A. Bizzeti and F. Bucci and E. Iacopini and M. Lenti and M. Veltri and A. Antonelli and M. Moulson and M. Raggi and T. Spadaro and K. Eppard and M. Hita-Hochgesand and K. Kleinknecht and B. Renk and R. Wanke and A. Winhart and R. Winston and V. Bolotov and V. Duk and E. Gushchin and F. Ambrosino and \{Di Filippo\}, D. and P. Massarotti and M. Napolitano and V. Palladino and G. Saracino and G. Anzivino and E. Imbergamo and R. Piandani and A. Sergi and P. Cenci and M. Pepe and F. Costantini and N. Doble and S. Giudici and G. Pierazzini and M. Sozzi and S. Venditti and S. Balev and G. Collazuol and L. DiLella and S. Gallorini and E. Goudzovski and G. Lamanna and I. Mannelli and G. Ruggiero and C. Cerri and R. Fantechi and V. Kurshetsov and V. Obraztsov and I. Popov and V. Semenov and O. Yushchenko and G. D'Agostini and E. Leonardi and M. Serra and P. Valente and A. Fucci and A. Salamon and B. Bloch-Devaux and B. Peyaud and J. Engelfried and D. Coward and V. Kozhuharov and L. Litov and R. Arcidiacono and S. Bifani and C. Biino and G. Dellacasa and F. Marchetto and T. Numao and F. Retiere",

note = "Funding Information: It is a pleasure to express our appreciation to the staff of the CERN laboratory and the technical staff of the participating laboratories and universities for their efforts in operation of the experiment and data processing. We gratefully acknowledge the excellent performance of the BlueBEAR computing facility at the University of Birmingham, where the simulations have been performed. The IHEP and INR groups have been supported in part by the RFBR grants N08-02-91016 and N10-02-00330 . We are grateful to Vincenzo Cirigliano, Gino Isidori and Paride Paradisi for valuable discussions. ",

year = "2011",

month = apr,

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doi = "10.1016/j.physletb.2011.02.064",

language = "English",

volume = "698",

pages = "105--114",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier BV",

number = "2",

}

Lazzeroni, C, Romano, A, Ceccucci, A, Danielsson, H, Falaleev, V, Gatignon, L, Lopez, SG, Hallgren, B, Maier, A, Peters, A, Piccini, M, Riedler, P, Dyulendarova, M, Frabetti, PL, Kekelidze, V, Madigozhin, D, Marinova, E, Molokanova, N, Movchan, S, Potrebenikov, Y, Shkarovskiy, S, Zinchenko, A, Rubin, P, Baldini, W, Ramusino, AC, Dalpiaz, P, Fiorini, M, Gianoli, A, Norton, A, Petrucci, F, Savrié, 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 2011, 'Test of lepton flavour universality in K⁺→ℓ⁺ν decays', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 698, no. 2, pp. 105-114. https://doi.org/10.1016/j.physletb.2011.02.064

TY - JOUR

T1 - Test of lepton flavour universality in K+→ℓ+ν decays

AU - Lazzeroni, C.

AU - Romano, A.

AU - Ceccucci, A.

AU - Danielsson, H.

AU - Falaleev, V.

AU - Gatignon, L.

AU - Lopez, S. Goy

AU - Hallgren, B.

AU - Maier, A.

AU - Peters, A.

AU - Piccini, M.

AU - Riedler, P.

AU - Dyulendarova, M.

AU - Frabetti, P. L.

AU - Kekelidze, V.

AU - Madigozhin, D.

AU - Marinova, E.

AU - Molokanova, N.

AU - Movchan, S.

AU - Potrebenikov, Y.

AU - Shkarovskiy, S.

AU - Zinchenko, A.

AU - Rubin, P.

AU - Baldini, W.

AU - Ramusino, A. Cotta

AU - Dalpiaz, P.

AU - Fiorini, M.

AU - Gianoli, A.

AU - Norton, A.

AU - Petrucci, F.

AU - Savrié, M.

AU - Wahl, H.

AU - Bizzeti, A.

AU - Bucci, F.

AU - Iacopini, E.

AU - Lenti, M.

AU - Veltri, M.

AU - Antonelli, A.

AU - Moulson, M.

AU - Raggi, M.

AU - Spadaro, T.

AU - Eppard, K.

AU - Hita-Hochgesand, M.

AU - Kleinknecht, K.

AU - Renk, B.

AU - Wanke, R.

AU - Winhart, A.

AU - Winston, R.

AU - Bolotov, V.

AU - Duk, V.

AU - Gushchin, E.

AU - Ambrosino, F.

AU - Di Filippo, D.

AU - Massarotti, P.

AU - Napolitano, M.

AU - Palladino, V.

AU - Saracino, G.

AU - Anzivino, G.

AU - Imbergamo, E.

AU - Piandani, R.

AU - Sergi, A.

AU - Cenci, P.

AU - Pepe, M.

AU - Costantini, F.

AU - Doble, N.

AU - Giudici, S.

AU - Pierazzini, G.

AU - Sozzi, M.

AU - Venditti, S.

AU - Balev, S.

AU - Collazuol, G.

AU - DiLella, L.

AU - Gallorini, S.

AU - Goudzovski, E.

AU - Lamanna, G.

AU - Mannelli, I.

AU - Ruggiero, G.

AU - Cerri, C.

AU - Fantechi, R.

AU - Kurshetsov, V.

AU - Obraztsov, V.

AU - Popov, I.

AU - Semenov, V.

AU - Yushchenko, O.

AU - D'Agostini, G.

AU - Leonardi, E.

AU - Serra, M.

AU - Valente, P.

AU - Fucci, A.

AU - Salamon, A.

AU - Bloch-Devaux, B.

AU - Peyaud, B.

AU - Engelfried, J.

AU - Coward, D.

AU - Kozhuharov, V.

AU - Litov, L.

AU - Arcidiacono, R.

AU - Bifani, S.

AU - Biino, C.

AU - Dellacasa, G.

AU - Marchetto, F.

AU - Numao, T.

AU - Retiere, F.

N1 - Funding Information: It is a pleasure to express our appreciation to the staff of the CERN laboratory and the technical staff of the participating laboratories and universities for their efforts in operation of the experiment and data processing. We gratefully acknowledge the excellent performance of the BlueBEAR computing facility at the University of Birmingham, where the simulations have been performed. The IHEP and INR groups have been supported in part by the RFBR grants N08-02-91016 and N10-02-00330 . We are grateful to Vincenzo Cirigliano, Gino Isidori and Paride Paradisi for valuable discussions.

PY - 2011/4/4

Y1 - 2011/4/4

N2 - 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+νin a sample of 59813 reconstructed K+→ℓ+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.

AB - 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+νin a sample of 59813 reconstructed K+→ℓ+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.

KW - Lepton universality

KW - Leptonic kaon decay

UR - https://www.scopus.com/pages/publications/79952775691

U2 - 10.1016/j.physletb.2011.02.064

DO - 10.1016/j.physletb.2011.02.064

M3 - Article

SN - 0370-2693

VL - 698

SP - 105

EP - 114

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 2

ER -

Test of lepton flavour universality in K⁺→ℓ⁺ν decays

Abstract

Keywords

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