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A new measurement of direct CP violation in the neutral kaon system
A new measurement of the ratio of the CP-violating amplitudes for $K_{L} \to 2\pi^{0}$ and $K_{L} \to \pi^{+}\pi^{-}$ is reported. The measured value for $\Re = |\eta_{00} / \eta_{ +-}|^{2}$ is $0.9878 \pm 0.0026 \pm 0.0030$, where the first error is the statistical uncertainty and the second is the...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
1993
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(93)91599-I http://cds.cern.ch/record/253618 |
| _version_ | 1780885673930129408 |
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| author | Barr, Giles David Buchholz, P Carosi, R Coward, D H Cundy, Donald C Doble, Niels T Gatignon, L Gibson, V Grafström, P Hagelberg, R Van der Lans, J Nelson, H N Wahl, H Peach, Kenneth J Blümer, H Heinz, R Kleinknecht, K Mayer, P Panzer, B Renk, B Rohrer, H Sander, H G Wagner, A Augé, E Fournier, D Heusse, P Iconomidou-Fayard, L Harrus, I Perdereau, O Schaffer, A C Serin, L Bertanza, L Bigi, A Calafiura, P Calvetti, M Carrozza, M C Casali, R Cerri, C Fantechi, R Mannelli, I G Marzulli, V M Nappi, A Pierazzini, G M Holder, M Kreutz, A Quast, G Rost, M Werthenbach, R Zech, G |
| author_facet | Barr, Giles David Buchholz, P Carosi, R Coward, D H Cundy, Donald C Doble, Niels T Gatignon, L Gibson, V Grafström, P Hagelberg, R Van der Lans, J Nelson, H N Wahl, H Peach, Kenneth J Blümer, H Heinz, R Kleinknecht, K Mayer, P Panzer, B Renk, B Rohrer, H Sander, H G Wagner, A Augé, E Fournier, D Heusse, P Iconomidou-Fayard, L Harrus, I Perdereau, O Schaffer, A C Serin, L Bertanza, L Bigi, A Calafiura, P Calvetti, M Carrozza, M C Casali, R Cerri, C Fantechi, R Mannelli, I G Marzulli, V M Nappi, A Pierazzini, G M Holder, M Kreutz, A Quast, G Rost, M Werthenbach, R Zech, G |
| author_sort | Barr, Giles David |
| collection | CERN |
| description | A new measurement of the ratio of the CP-violating amplitudes for $K_{L} \to 2\pi^{0}$ and $K_{L} \to \pi^{+}\pi^{-}$ is reported. The measured value for $\Re = |\eta_{00} / \eta_{ +-}|^{2}$ is $0.9878 \pm 0.0026 \pm 0.0030$, where the first error is the statistical uncertainty and the second is the estimate of the systematic uncertainty. This gives a value for the parameter describing direct CP violation: $\Re$ $\epsilon'/\epsilon = (2.0 \pm 0.7) \times 10^{−3}$ . |
| id | cern-253618 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1993 |
| record_format | invenio |
| spelling | cern-2536182019-09-30T06:29:59Zdoi:10.1016/0370-2693(93)91599-Ihttp://cds.cern.ch/record/253618engBarr, Giles DavidBuchholz, PCarosi, RCoward, D HCundy, Donald CDoble, Niels TGatignon, LGibson, VGrafström, PHagelberg, RVan der Lans, JNelson, H NWahl, HPeach, Kenneth JBlümer, HHeinz, RKleinknecht, KMayer, PPanzer, BRenk, BRohrer, HSander, H GWagner, AAugé, EFournier, DHeusse, PIconomidou-Fayard, LHarrus, IPerdereau, OSchaffer, A CSerin, LBertanza, LBigi, ACalafiura, PCalvetti, MCarrozza, M CCasali, RCerri, CFantechi, RMannelli, I GMarzulli, V MNappi, APierazzini, G MHolder, MKreutz, AQuast, GRost, MWerthenbach, RZech, GA new measurement of direct CP violation in the neutral kaon systemParticle Physics - ExperimentA new measurement of the ratio of the CP-violating amplitudes for $K_{L} \to 2\pi^{0}$ and $K_{L} \to \pi^{+}\pi^{-}$ is reported. The measured value for $\Re = |\eta_{00} / \eta_{ +-}|^{2}$ is $0.9878 \pm 0.0026 \pm 0.0030$, where the first error is the statistical uncertainty and the second is the estimate of the systematic uncertainty. This gives a value for the parameter describing direct CP violation: $\Re$ $\epsilon'/\epsilon = (2.0 \pm 0.7) \times 10^{−3}$ .CERN-PPE-93-168oai:cds.cern.ch:2536181993-09-10 |
| spellingShingle | Particle Physics - Experiment Barr, Giles David Buchholz, P Carosi, R Coward, D H Cundy, Donald C Doble, Niels T Gatignon, L Gibson, V Grafström, P Hagelberg, R Van der Lans, J Nelson, H N Wahl, H Peach, Kenneth J Blümer, H Heinz, R Kleinknecht, K Mayer, P Panzer, B Renk, B Rohrer, H Sander, H G Wagner, A Augé, E Fournier, D Heusse, P Iconomidou-Fayard, L Harrus, I Perdereau, O Schaffer, A C Serin, L Bertanza, L Bigi, A Calafiura, P Calvetti, M Carrozza, M C Casali, R Cerri, C Fantechi, R Mannelli, I G Marzulli, V M Nappi, A Pierazzini, G M Holder, M Kreutz, A Quast, G Rost, M Werthenbach, R Zech, G A new measurement of direct CP violation in the neutral kaon system |
| title | A new measurement of direct CP violation in the neutral kaon system |
| title_full | A new measurement of direct CP violation in the neutral kaon system |
| title_fullStr | A new measurement of direct CP violation in the neutral kaon system |
| title_full_unstemmed | A new measurement of direct CP violation in the neutral kaon system |
| title_short | A new measurement of direct CP violation in the neutral kaon system |
| title_sort | new measurement of direct cp violation in the neutral kaon system |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/0370-2693(93)91599-I http://cds.cern.ch/record/253618 |
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