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Searches for lepton number violation and resonances in $K^{\pm} \rightarrow \pi\mu\mu$ decays
The NA48/2 experiment at CERN collected a large sample of charged kaon decays to final states with multiple charged particles in 2003–2004. A new upper limit on the rate of the lepton number violating decay K±→π∓μ±μ± is reported: B(K±→π∓μ±μ±)<8.6×10−11 at 90% CL. Searches for two-body resonances...
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Lenguaje: | eng |
Publicado: |
2016
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1016/j.physletb.2017.03.029 http://cds.cern.ch/record/2239327 |
_version_ | 1780952968447655936 |
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author | Batley, J.R. Kalmus, G. Lazzeroni, C. Munday, D.J. Slater, M.W. Wotton, S.A. Arcidiacono, R. Bocquet, G. Cabibbo, N. Ceccucci, A. Cundy, D. Falaleev, V. Fidecaro, M. Gatignon, L. Gonidec, A. Kubischta, W. Maier, A. Massri, K. Norton, A. Patel, M. Peters, A. Balev, S. Frabetti, P.L. Gersabeck, E. Goudzovski, E. Hristov, P. Kekelidze, V. Kozhuharov, V. Litov, L. Madigozhin, D. Molokanova, N. Polenkevich, I. Potrebenikov, Yu. Stoynev, S. Zinchenko, A. Monnier, E. Swallow, E. Winston, R. Rubin, P. Walker, A. Baldini, W. Cotta Ramusino, A. Dalpiaz, P. Damiani, C. Fiorini, M. Gianoli, A. Martini, M. Petrucci, F. Savrié, M. Scarpa, M. Wahl, H. Bizzeti, A. Lenti, M. Veltri, M. Calvetti, M. Celeghini, E. Iacopini, E. Ruggiero, G. Behler, M. Eppard, K. Kleinknecht, K. Marouelli, P. Masetti, L. Moosbrugger, U. Morales Morales, C. Renk, B. Wache, M. Wanke, R. Winhart, A. Coward, D. Dabrowski, A. Fonseca Martin, T. Shieh, M. Szleper, M. Velasco, M. Wood, M.D. Cenci, P. Pepe, M. Petrucci, M.C. Anzivino, G. Imbergamo, E. Nappi, A. Piccini, M. Raggi, M. Valdata-Nappi, M. Cerri, C. Fantechi, R. Collazuol, G. DiLella, L. Lamanna, G. Mannelli, I. Michetti, A. Costantini, F. Doble, N. Fiorini, L. Giudici, S. Pierazzini, G. Sozzi, M. Venditti, S. Bloch-Devaux, B. Cheshkov, C. Chèze, J.B. De Beer, M. Derré, J. Marel, G. Mazzucato, E. Peyaud, B. Vallage, B. Holder, M. Ziolkowski, M. Biino, C. Cartiglia, N. Marchetto, F. Bifani, S. Clemencic, M. Goy Lopez, S. Dibon, H. Jeitler, M. Markytan, M. Mikulec, I. Neuhofer, G. Widhalm, L. |
author_facet | Batley, J.R. Kalmus, G. Lazzeroni, C. Munday, D.J. Slater, M.W. Wotton, S.A. Arcidiacono, R. Bocquet, G. Cabibbo, N. Ceccucci, A. Cundy, D. Falaleev, V. Fidecaro, M. Gatignon, L. Gonidec, A. Kubischta, W. Maier, A. Massri, K. Norton, A. Patel, M. Peters, A. Balev, S. Frabetti, P.L. Gersabeck, E. Goudzovski, E. Hristov, P. Kekelidze, V. Kozhuharov, V. Litov, L. Madigozhin, D. Molokanova, N. Polenkevich, I. Potrebenikov, Yu. Stoynev, S. Zinchenko, A. Monnier, E. Swallow, E. Winston, R. Rubin, P. Walker, A. Baldini, W. Cotta Ramusino, A. Dalpiaz, P. Damiani, C. Fiorini, M. Gianoli, A. Martini, M. Petrucci, F. Savrié, M. Scarpa, M. Wahl, H. Bizzeti, A. Lenti, M. Veltri, M. Calvetti, M. Celeghini, E. Iacopini, E. Ruggiero, G. Behler, M. Eppard, K. Kleinknecht, K. Marouelli, P. Masetti, L. Moosbrugger, U. Morales Morales, C. Renk, B. Wache, M. Wanke, R. Winhart, A. Coward, D. Dabrowski, A. Fonseca Martin, T. Shieh, M. Szleper, M. Velasco, M. Wood, M.D. Cenci, P. Pepe, M. Petrucci, M.C. Anzivino, G. Imbergamo, E. Nappi, A. Piccini, M. Raggi, M. Valdata-Nappi, M. Cerri, C. Fantechi, R. Collazuol, G. DiLella, L. Lamanna, G. Mannelli, I. Michetti, A. Costantini, F. Doble, N. Fiorini, L. Giudici, S. Pierazzini, G. Sozzi, M. Venditti, S. Bloch-Devaux, B. Cheshkov, C. Chèze, J.B. De Beer, M. Derré, J. Marel, G. Mazzucato, E. Peyaud, B. Vallage, B. Holder, M. Ziolkowski, M. Biino, C. Cartiglia, N. Marchetto, F. Bifani, S. Clemencic, M. Goy Lopez, S. Dibon, H. Jeitler, M. Markytan, M. Mikulec, I. Neuhofer, G. Widhalm, L. |
author_sort | Batley, J.R. |
collection | CERN |
description | The NA48/2 experiment at CERN collected a large sample of charged kaon decays to final states with multiple charged particles in 2003–2004. A new upper limit on the rate of the lepton number violating decay K±→π∓μ±μ± is reported: B(K±→π∓μ±μ±)<8.6×10−11 at 90% CL. Searches for two-body resonances X in K±→πμμ decays (such as heavy neutral leptons N4 and inflatons χ ) are also presented. In the absence of signals, upper limits are set on the products of branching fractions B(K±→μ±N4)B(N4→πμ) and B(K±→π±X)B(X→μ+μ−) for ranges of assumed resonance masses and lifetimes. The limits are in the (10−11,10−9) range for resonance lifetimes below 100 ps. |
id | cern-2239327 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2016 |
record_format | invenio |
spelling | cern-22393272023-08-03T03:42:53Zdoi:10.1016/j.physletb.2017.03.029http://cds.cern.ch/record/2239327engBatley, J.R.Kalmus, G.Lazzeroni, C.Munday, D.J.Slater, M.W.Wotton, S.A.Arcidiacono, R.Bocquet, G.Cabibbo, N.Ceccucci, A.Cundy, D.Falaleev, V.Fidecaro, M.Gatignon, L.Gonidec, A.Kubischta, W.Maier, A.Massri, K.Norton, A.Patel, M.Peters, A.Balev, S.Frabetti, P.L.Gersabeck, E.Goudzovski, E.Hristov, P.Kekelidze, V.Kozhuharov, V.Litov, L.Madigozhin, D.Molokanova, N.Polenkevich, I.Potrebenikov, Yu.Stoynev, S.Zinchenko, A.Monnier, E.Swallow, E.Winston, R.Rubin, P.Walker, A.Baldini, W.Cotta Ramusino, A.Dalpiaz, P.Damiani, C.Fiorini, M.Gianoli, A.Martini, M.Petrucci, F.Savrié, M.Scarpa, M.Wahl, H.Bizzeti, A.Lenti, M.Veltri, M.Calvetti, M.Celeghini, E.Iacopini, E.Ruggiero, G.Behler, M.Eppard, K.Kleinknecht, K.Marouelli, P.Masetti, L.Moosbrugger, U.Morales Morales, C.Renk, B.Wache, M.Wanke, R.Winhart, A.Coward, D.Dabrowski, A.Fonseca Martin, T.Shieh, M.Szleper, M.Velasco, M.Wood, M.D.Cenci, P.Pepe, M.Petrucci, M.C.Anzivino, G.Imbergamo, E.Nappi, A.Piccini, M.Raggi, M.Valdata-Nappi, M.Cerri, C.Fantechi, R.Collazuol, G.DiLella, L.Lamanna, G.Mannelli, I.Michetti, A.Costantini, F.Doble, N.Fiorini, L.Giudici, S.Pierazzini, G.Sozzi, M.Venditti, S.Bloch-Devaux, B.Cheshkov, C.Chèze, J.B.De Beer, M.Derré, J.Marel, G.Mazzucato, E.Peyaud, B.Vallage, B.Holder, M.Ziolkowski, M.Biino, C.Cartiglia, N.Marchetto, F.Bifani, S.Clemencic, M.Goy Lopez, S.Dibon, H.Jeitler, M.Markytan, M.Mikulec, I.Neuhofer, G.Widhalm, L.Searches for lepton number violation and resonances in $K^{\pm} \rightarrow \pi\mu\mu$ decayshep-exParticle Physics - ExperimentThe NA48/2 experiment at CERN collected a large sample of charged kaon decays to final states with multiple charged particles in 2003–2004. A new upper limit on the rate of the lepton number violating decay K±→π∓μ±μ± is reported: B(K±→π∓μ±μ±)<8.6×10−11 at 90% CL. Searches for two-body resonances X in K±→πμμ decays (such as heavy neutral leptons N4 and inflatons χ ) are also presented. In the absence of signals, upper limits are set on the products of branching fractions B(K±→μ±N4)B(N4→πμ) and B(K±→π±X)B(X→μ+μ−) for ranges of assumed resonance masses and lifetimes. The limits are in the (10−11,10−9) range for resonance lifetimes below 100 ps.The NA48/2 experiment at CERN collected a large sample of charged kaon decays to final states with multiple charged particles in 2003--2004. A new upper limit on the rate of the lepton number violating decay $K^{\pm}\to\pi^{\mp}\mu^{\pm}\mu^{\pm}$ is reported: $\mathcal{B}(K^{\pm}\to\pi^{\mp}\mu^{\pm}\mu^{\pm})<8.6 \times 10^{-11}$ at 90% CL. Searches for two-body resonances $X$ in $K^{\pm}\to\pi\mu\mu$ decays (such as heavy neutral leptons $N_4$ and inflatons $\chi$) are also presented. In the absence of signals, upper limits are set on the products of branching fractions $\mathcal{B}(K^{\pm}\to\mu^{\pm}N_4)\mathcal{B}(N_4\to\pi\mu)$ and $\mathcal{B}(K^{\pm}\to\pi^{\pm}X)\mathcal{B}(X\to\mu^+\mu^-)$ for ranges of assumed resonance masses and lifetimes. The limits are in the $(10^{-11},10^{-9})$ range for resonance lifetimes below 100 ps.arXiv:1612.04723CERN-EP-2016-310oai:cds.cern.ch:22393272016-12-14 |
spellingShingle | hep-ex Particle Physics - Experiment Batley, J.R. Kalmus, G. Lazzeroni, C. Munday, D.J. Slater, M.W. Wotton, S.A. Arcidiacono, R. Bocquet, G. Cabibbo, N. Ceccucci, A. Cundy, D. Falaleev, V. Fidecaro, M. Gatignon, L. Gonidec, A. Kubischta, W. Maier, A. Massri, K. Norton, A. Patel, M. Peters, A. Balev, S. Frabetti, P.L. Gersabeck, E. Goudzovski, E. Hristov, P. Kekelidze, V. Kozhuharov, V. Litov, L. Madigozhin, D. Molokanova, N. Polenkevich, I. Potrebenikov, Yu. Stoynev, S. Zinchenko, A. Monnier, E. Swallow, E. Winston, R. Rubin, P. Walker, A. Baldini, W. Cotta Ramusino, A. Dalpiaz, P. Damiani, C. Fiorini, M. Gianoli, A. Martini, M. Petrucci, F. Savrié, M. Scarpa, M. Wahl, H. Bizzeti, A. Lenti, M. Veltri, M. Calvetti, M. Celeghini, E. Iacopini, E. Ruggiero, G. Behler, M. Eppard, K. Kleinknecht, K. Marouelli, P. Masetti, L. Moosbrugger, U. Morales Morales, C. Renk, B. Wache, M. Wanke, R. Winhart, A. Coward, D. Dabrowski, A. Fonseca Martin, T. Shieh, M. Szleper, M. Velasco, M. Wood, M.D. Cenci, P. Pepe, M. Petrucci, M.C. Anzivino, G. Imbergamo, E. Nappi, A. Piccini, M. Raggi, M. Valdata-Nappi, M. Cerri, C. Fantechi, R. Collazuol, G. DiLella, L. Lamanna, G. Mannelli, I. Michetti, A. Costantini, F. Doble, N. Fiorini, L. Giudici, S. Pierazzini, G. Sozzi, M. Venditti, S. Bloch-Devaux, B. Cheshkov, C. Chèze, J.B. De Beer, M. Derré, J. Marel, G. Mazzucato, E. Peyaud, B. Vallage, B. Holder, M. Ziolkowski, M. Biino, C. Cartiglia, N. Marchetto, F. Bifani, S. Clemencic, M. Goy Lopez, S. Dibon, H. Jeitler, M. Markytan, M. Mikulec, I. Neuhofer, G. Widhalm, L. Searches for lepton number violation and resonances in $K^{\pm} \rightarrow \pi\mu\mu$ decays |
title | Searches for lepton number violation and resonances in $K^{\pm} \rightarrow \pi\mu\mu$ decays |
title_full | Searches for lepton number violation and resonances in $K^{\pm} \rightarrow \pi\mu\mu$ decays |
title_fullStr | Searches for lepton number violation and resonances in $K^{\pm} \rightarrow \pi\mu\mu$ decays |
title_full_unstemmed | Searches for lepton number violation and resonances in $K^{\pm} \rightarrow \pi\mu\mu$ decays |
title_short | Searches for lepton number violation and resonances in $K^{\pm} \rightarrow \pi\mu\mu$ decays |
title_sort | searches for lepton number violation and resonances in $k^{\pm} \rightarrow \pi\mu\mu$ decays |
topic | hep-ex Particle Physics - Experiment |
url | https://dx.doi.org/10.1016/j.physletb.2017.03.029 http://cds.cern.ch/record/2239327 |
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