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Latest results on rare kaon decays from the NA48/2 experiment @CERN
The NA48/2 experiment at CERN reports the first observation of the $K^± → π^±π^0e^+e^−$ decay from an exposure of $1.7 × 10^{11}$ charged kaon decays recorded in 2003–2004. A sample of 4919 candidates with 4.9% background contamination allows the determination of the branching ratio in the full kine...
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| Lenguaje: | eng |
| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1142/S0217751X20440194 http://cds.cern.ch/record/2799796 |
| _version_ | 1780972577284423680 |
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| author | Molokanova, N Anzivino, G Arcidiacono, R Baldini, W Balev, S Batley, J R Behler, M Bifani, S Biino, C Bizzeti, A Bloch-Devaux, B Bocquet, G Cabibbo, N Calvetti, M Cartiglia, N Ceccucci, A Celeghini, E Cenci, P Cerri, C Cheshkov, C B Chèze, J Clemencic, M Collazuol, G Costantini, F Cotta Ramusino, A Coward, D Cundy, D Dabrowski, A Dalpiaz, P Damiani, C De Beer, M Derre, J Dibon, H Di Lella, L Doble, N Eppard, K Falaleev, V Fantechi, R Fidecaro, M Fiorini, L Fiorini, M Fonseca Martin, T Frabetti, P L Gatignon, L Gersabeck, E Gianoli, A Giudici, S Gonidec, A Goudzovski, E Lopez, S Goy Hita-Hochgesand, M Holder, M Hristov, P Iacopini, E Imbergamo, E Jeitler, M Kalmus, G Kekelidze, V Kleinknecht, K Kozhuharov, V Kubischta, W Lamanna, G Lazzeroni, C Lenti, M Litov, L Madigozhin, D Maier, A Mannelli, I Marchetto, F Marel, G Markytan, M Marouelli, P Martini, M Masetti, L Mazzucato, E Michetti, A Mikulec, I Misheva, M Monnier, E Moosbrugger, U Morales Morales, C Munday, D J Nappi, A Neuhofer, G Norton, A Patel, M Pepe, M Peters, A Petrucci, F Petrucci, M C Peyaud, B Piccini, M Pierazzini, G Polenkevich, I Potrebenikov, Yu Raggi, M Renk, B Rubin, P Ruggiero, G Savrie, M Scarpa, M Shieh, M Shkarovskiy, S Slater, M W Sozzi, M Stoynev, S Swa-low, E Szleper, M Valdata-Nappi, M Vallage, B Velasco, M Veltri, M Venditti, S Wache, M Wahl, H Walker, A Wanke, R Widhalm, L Winhart, A Winston, R Wood, M D Wotton, S A Zinchenko, A Ziolkowski, M |
| author_facet | Molokanova, N Anzivino, G Arcidiacono, R Baldini, W Balev, S Batley, J R Behler, M Bifani, S Biino, C Bizzeti, A Bloch-Devaux, B Bocquet, G Cabibbo, N Calvetti, M Cartiglia, N Ceccucci, A Celeghini, E Cenci, P Cerri, C Cheshkov, C B Chèze, J Clemencic, M Collazuol, G Costantini, F Cotta Ramusino, A Coward, D Cundy, D Dabrowski, A Dalpiaz, P Damiani, C De Beer, M Derre, J Dibon, H Di Lella, L Doble, N Eppard, K Falaleev, V Fantechi, R Fidecaro, M Fiorini, L Fiorini, M Fonseca Martin, T Frabetti, P L Gatignon, L Gersabeck, E Gianoli, A Giudici, S Gonidec, A Goudzovski, E Lopez, S Goy Hita-Hochgesand, M Holder, M Hristov, P Iacopini, E Imbergamo, E Jeitler, M Kalmus, G Kekelidze, V Kleinknecht, K Kozhuharov, V Kubischta, W Lamanna, G Lazzeroni, C Lenti, M Litov, L Madigozhin, D Maier, A Mannelli, I Marchetto, F Marel, G Markytan, M Marouelli, P Martini, M Masetti, L Mazzucato, E Michetti, A Mikulec, I Misheva, M Monnier, E Moosbrugger, U Morales Morales, C Munday, D J Nappi, A Neuhofer, G Norton, A Patel, M Pepe, M Peters, A Petrucci, F Petrucci, M C Peyaud, B Piccini, M Pierazzini, G Polenkevich, I Potrebenikov, Yu Raggi, M Renk, B Rubin, P Ruggiero, G Savrie, M Scarpa, M Shieh, M Shkarovskiy, S Slater, M W Sozzi, M Stoynev, S Swa-low, E Szleper, M Valdata-Nappi, M Vallage, B Velasco, M Veltri, M Venditti, S Wache, M Wahl, H Walker, A Wanke, R Widhalm, L Winhart, A Winston, R Wood, M D Wotton, S A Zinchenko, A Ziolkowski, M |
| author_sort | Molokanova, N |
| collection | CERN |
| description | The NA48/2 experiment at CERN reports the first observation of the $K^± → π^±π^0e^+e^−$ decay from an exposure of $1.7 × 10^{11}$ charged kaon decays recorded in 2003–2004. A sample of 4919 candidates with 4.9% background contamination allows the determination of the branching ratio in the full kinematic region. The study of the kinematic space shows evidence for a structure-dependent contribution in agreement with predictions based on chiral perturbation theory. Several $P-$ and $CP-$violating asymmetries are also evaluated. The most precise measurement of the charged kaon semi-leptonic form factors obtained by NA48/2 with 4.4 million $Ke_3$ and 2.3 million $K_{μ3}$ events collected in 2004 will also be presented. |
| id | cern-2799796 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2020 |
| record_format | invenio |
| spelling | cern-27997962022-11-17T14:32:34Zdoi:10.1142/S0217751X20440194http://cds.cern.ch/record/2799796engMolokanova, NAnzivino, GArcidiacono, RBaldini, WBalev, SBatley, J RBehler, MBifani, SBiino, CBizzeti, ABloch-Devaux, BBocquet, GCabibbo, NCalvetti, MCartiglia, NCeccucci, ACeleghini, ECenci, PCerri, CCheshkov, CB Chèze, JClemencic, MCollazuol, GCostantini, FCotta Ramusino, ACoward, DCundy, DDabrowski, ADalpiaz, PDamiani, CDe Beer, MDerre, JDibon, HDi Lella, LDoble, NEppard, KFalaleev, VFantechi, RFidecaro, MFiorini, LFiorini, MFonseca Martin, TFrabetti, P LGatignon, LGersabeck, EGianoli, AGiudici, SGonidec, AGoudzovski, ELopez, S GoyHita-Hochgesand, MHolder, MHristov, PIacopini, EImbergamo, EJeitler, MKalmus, GKekelidze, VKleinknecht, KKozhuharov, VKubischta, WLamanna, GLazzeroni, CLenti, MLitov, LMadigozhin, DMaier, AMannelli, IMarchetto, FMarel, GMarkytan, MMarouelli, PMartini, MMasetti, LMazzucato, EMichetti, AMikulec, IMisheva, MMonnier, EMoosbrugger, UMorales Morales, CMunday, D JNappi, ANeuhofer, GNorton, APatel, MPepe, MPeters, APetrucci, FPetrucci, M CPeyaud, BPiccini, MPierazzini, GPolenkevich, IPotrebenikov, YuRaggi, MRenk, BRubin, PRuggiero, GSavrie, MScarpa, MShieh, MShkarovskiy, SSlater, M WSozzi, MStoynev, SSwa-low, ESzleper, MValdata-Nappi, MVallage, BVelasco, MVeltri, MVenditti, SWache, MWahl, HWalker, AWanke, RWidhalm, LWinhart, AWinston, RWood, M DWotton, S AZinchenko, AZiolkowski, MLatest results on rare kaon decays from the NA48/2 experiment @CERNNuclear Physics - ExperimentThe NA48/2 experiment at CERN reports the first observation of the $K^± → π^±π^0e^+e^−$ decay from an exposure of $1.7 × 10^{11}$ charged kaon decays recorded in 2003–2004. A sample of 4919 candidates with 4.9% background contamination allows the determination of the branching ratio in the full kinematic region. The study of the kinematic space shows evidence for a structure-dependent contribution in agreement with predictions based on chiral perturbation theory. Several $P-$ and $CP-$violating asymmetries are also evaluated. The most precise measurement of the charged kaon semi-leptonic form factors obtained by NA48/2 with 4.4 million $Ke_3$ and 2.3 million $K_{μ3}$ events collected in 2004 will also be presented.oai:cds.cern.ch:27997962020 |
| spellingShingle | Nuclear Physics - Experiment Molokanova, N Anzivino, G Arcidiacono, R Baldini, W Balev, S Batley, J R Behler, M Bifani, S Biino, C Bizzeti, A Bloch-Devaux, B Bocquet, G Cabibbo, N Calvetti, M Cartiglia, N Ceccucci, A Celeghini, E Cenci, P Cerri, C Cheshkov, C B Chèze, J Clemencic, M Collazuol, G Costantini, F Cotta Ramusino, A Coward, D Cundy, D Dabrowski, A Dalpiaz, P Damiani, C De Beer, M Derre, J Dibon, H Di Lella, L Doble, N Eppard, K Falaleev, V Fantechi, R Fidecaro, M Fiorini, L Fiorini, M Fonseca Martin, T Frabetti, P L Gatignon, L Gersabeck, E Gianoli, A Giudici, S Gonidec, A Goudzovski, E Lopez, S Goy Hita-Hochgesand, M Holder, M Hristov, P Iacopini, E Imbergamo, E Jeitler, M Kalmus, G Kekelidze, V Kleinknecht, K Kozhuharov, V Kubischta, W Lamanna, G Lazzeroni, C Lenti, M Litov, L Madigozhin, D Maier, A Mannelli, I Marchetto, F Marel, G Markytan, M Marouelli, P Martini, M Masetti, L Mazzucato, E Michetti, A Mikulec, I Misheva, M Monnier, E Moosbrugger, U Morales Morales, C Munday, D J Nappi, A Neuhofer, G Norton, A Patel, M Pepe, M Peters, A Petrucci, F Petrucci, M C Peyaud, B Piccini, M Pierazzini, G Polenkevich, I Potrebenikov, Yu Raggi, M Renk, B Rubin, P Ruggiero, G Savrie, M Scarpa, M Shieh, M Shkarovskiy, S Slater, M W Sozzi, M Stoynev, S Swa-low, E Szleper, M Valdata-Nappi, M Vallage, B Velasco, M Veltri, M Venditti, S Wache, M Wahl, H Walker, A Wanke, R Widhalm, L Winhart, A Winston, R Wood, M D Wotton, S A Zinchenko, A Ziolkowski, M Latest results on rare kaon decays from the NA48/2 experiment @CERN |
| title | Latest results on rare kaon decays from the NA48/2 experiment @CERN |
| title_full | Latest results on rare kaon decays from the NA48/2 experiment @CERN |
| title_fullStr | Latest results on rare kaon decays from the NA48/2 experiment @CERN |
| title_full_unstemmed | Latest results on rare kaon decays from the NA48/2 experiment @CERN |
| title_short | Latest results on rare kaon decays from the NA48/2 experiment @CERN |
| title_sort | latest results on rare kaon decays from the na48/2 experiment @cern |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1142/S0217751X20440194 http://cds.cern.ch/record/2799796 |
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