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Search for CP violation in the decay of tagged $\overline{K}^0$ and $K^0$ to $\pi^{0}\pi^{0}\pi^{0}$
The CPLEAR experiment measured the eigentime-dependent asymmetry in the rates of initially tagged \kzerob\ and \kzero\ decaying to \threepizero\ in order to study the interference between the CP-violating \kshort\ and the CP-conserving \klong\ decay amplitudes. Without assuming CPT invariance, we ob...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
1998
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0370-2693(98)00256-1 http://cds.cern.ch/record/344288 |
| _version_ | 1780891717190287360 |
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| author | Angelopoulos, Angelos Apostolakis, Alcibiades J Aslanides, Elie Backenstoss, Gerhard Bargassa, P Behnke, O Benelli, A Bertin, V Blanc, F Bloch, P Carlson, P J Carroll, M Cawley, E Chertok, M B Danielsson, M Dejardin, M Derré, J Ealet, A Eleftheriadis, C Faravel, L Fetscher, W Fidecaro, Maria Filipcic, A Francis, D Fry, J Gabathuler, Erwin Gamet, R Gerber, H J Go, A Haselden, A Hayman, P J Henry-Coüannier, F Hollander, R W Jon-And, K Kettle, P R Kokkas, P Kreuger, R Le Gac, R Leimgruber, F Mandic, I Manthos, N Marel, Gérard Mikuz, M Miller, J Montanet, François Müller, A Nakada, Tatsuya Pagels, B Papadopoulos, I M Pavlopoulos, P Polivka, G Rickenbach, R Roberts, B L Ruf, T Schäfer, M Schaller, L A Schietinger, T Schopper, A Tauscher, Ludwig Thibault, C Touchard, F Touramanis, C van Eijk, C W E Vlachos, S Weber, P Wigger, I Wolter, M Zavrtanik, D Zimmerman, D |
| author_facet | Angelopoulos, Angelos Apostolakis, Alcibiades J Aslanides, Elie Backenstoss, Gerhard Bargassa, P Behnke, O Benelli, A Bertin, V Blanc, F Bloch, P Carlson, P J Carroll, M Cawley, E Chertok, M B Danielsson, M Dejardin, M Derré, J Ealet, A Eleftheriadis, C Faravel, L Fetscher, W Fidecaro, Maria Filipcic, A Francis, D Fry, J Gabathuler, Erwin Gamet, R Gerber, H J Go, A Haselden, A Hayman, P J Henry-Coüannier, F Hollander, R W Jon-And, K Kettle, P R Kokkas, P Kreuger, R Le Gac, R Leimgruber, F Mandic, I Manthos, N Marel, Gérard Mikuz, M Miller, J Montanet, François Müller, A Nakada, Tatsuya Pagels, B Papadopoulos, I M Pavlopoulos, P Polivka, G Rickenbach, R Roberts, B L Ruf, T Schäfer, M Schaller, L A Schietinger, T Schopper, A Tauscher, Ludwig Thibault, C Touchard, F Touramanis, C van Eijk, C W E Vlachos, S Weber, P Wigger, I Wolter, M Zavrtanik, D Zimmerman, D |
| author_sort | Angelopoulos, Angelos |
| collection | CERN |
| description | The CPLEAR experiment measured the eigentime-dependent asymmetry in the rates of initially tagged \kzerob\ and \kzero\ decaying to \threepizero\ in order to study the interference between the CP-violating \kshort\ and the CP-conserving \klong\ decay amplitudes. Without assuming CPT invariance, we obtain for the CP-violation parameter \etazero\ the values $\reetazero = 0.18 \pm 0.14_{\mbox{stat.}} \pm 0.06_{\mbox{syst.}} $ and $\imetazero = 0.15 \pm 0.20_{\mbox{stat.}} \pm 0.03_{\mbox{syst.}} .$ Requiring \reetazero\ to be equal to \ree\ we obtain $\imetazero = -0.05 \pm 0.12_{\mbox{stat.}} \pm 0.05_{\mbox{syst.}} .$ The corresponding upper limit for the branching ratio of the $\kshort \ra \threepizero$ decay is deduced to be $B_{\kshort\ra\threepizero} < 1.9 \times 10^{-5}$ at the 90\% confidence level. |
| id | cern-344288 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1998 |
| record_format | invenio |
| spelling | cern-3442882019-09-30T06:29:59Zdoi:10.1016/S0370-2693(98)00256-1http://cds.cern.ch/record/344288engAngelopoulos, AngelosApostolakis, Alcibiades JAslanides, ElieBackenstoss, GerhardBargassa, PBehnke, OBenelli, ABertin, VBlanc, FBloch, PCarlson, P JCarroll, MCawley, EChertok, M BDanielsson, MDejardin, MDerré, JEalet, AEleftheriadis, CFaravel, LFetscher, WFidecaro, MariaFilipcic, AFrancis, DFry, JGabathuler, ErwinGamet, RGerber, H JGo, AHaselden, AHayman, P JHenry-Coüannier, FHollander, R WJon-And, KKettle, P RKokkas, PKreuger, RLe Gac, RLeimgruber, FMandic, IManthos, NMarel, GérardMikuz, MMiller, JMontanet, FrançoisMüller, ANakada, TatsuyaPagels, BPapadopoulos, I MPavlopoulos, PPolivka, GRickenbach, RRoberts, B LRuf, TSchäfer, MSchaller, L ASchietinger, TSchopper, ATauscher, LudwigThibault, CTouchard, FTouramanis, Cvan Eijk, C W EVlachos, SWeber, PWigger, IWolter, MZavrtanik, DZimmerman, DSearch for CP violation in the decay of tagged $\overline{K}^0$ and $K^0$ to $\pi^{0}\pi^{0}\pi^{0}$Particle Physics - ExperimentThe CPLEAR experiment measured the eigentime-dependent asymmetry in the rates of initially tagged \kzerob\ and \kzero\ decaying to \threepizero\ in order to study the interference between the CP-violating \kshort\ and the CP-conserving \klong\ decay amplitudes. Without assuming CPT invariance, we obtain for the CP-violation parameter \etazero\ the values $\reetazero = 0.18 \pm 0.14_{\mbox{stat.}} \pm 0.06_{\mbox{syst.}} $ and $\imetazero = 0.15 \pm 0.20_{\mbox{stat.}} \pm 0.03_{\mbox{syst.}} .$ Requiring \reetazero\ to be equal to \ree\ we obtain $\imetazero = -0.05 \pm 0.12_{\mbox{stat.}} \pm 0.05_{\mbox{syst.}} .$ The corresponding upper limit for the branching ratio of the $\kshort \ra \threepizero$ decay is deduced to be $B_{\kshort\ra\threepizero} < 1.9 \times 10^{-5}$ at the 90\% confidence level.CERN-EP-98-004oai:cds.cern.ch:3442881998-01-20 |
| spellingShingle | Particle Physics - Experiment Angelopoulos, Angelos Apostolakis, Alcibiades J Aslanides, Elie Backenstoss, Gerhard Bargassa, P Behnke, O Benelli, A Bertin, V Blanc, F Bloch, P Carlson, P J Carroll, M Cawley, E Chertok, M B Danielsson, M Dejardin, M Derré, J Ealet, A Eleftheriadis, C Faravel, L Fetscher, W Fidecaro, Maria Filipcic, A Francis, D Fry, J Gabathuler, Erwin Gamet, R Gerber, H J Go, A Haselden, A Hayman, P J Henry-Coüannier, F Hollander, R W Jon-And, K Kettle, P R Kokkas, P Kreuger, R Le Gac, R Leimgruber, F Mandic, I Manthos, N Marel, Gérard Mikuz, M Miller, J Montanet, François Müller, A Nakada, Tatsuya Pagels, B Papadopoulos, I M Pavlopoulos, P Polivka, G Rickenbach, R Roberts, B L Ruf, T Schäfer, M Schaller, L A Schietinger, T Schopper, A Tauscher, Ludwig Thibault, C Touchard, F Touramanis, C van Eijk, C W E Vlachos, S Weber, P Wigger, I Wolter, M Zavrtanik, D Zimmerman, D Search for CP violation in the decay of tagged $\overline{K}^0$ and $K^0$ to $\pi^{0}\pi^{0}\pi^{0}$ |
| title | Search for CP violation in the decay of tagged $\overline{K}^0$ and $K^0$ to $\pi^{0}\pi^{0}\pi^{0}$ |
| title_full | Search for CP violation in the decay of tagged $\overline{K}^0$ and $K^0$ to $\pi^{0}\pi^{0}\pi^{0}$ |
| title_fullStr | Search for CP violation in the decay of tagged $\overline{K}^0$ and $K^0$ to $\pi^{0}\pi^{0}\pi^{0}$ |
| title_full_unstemmed | Search for CP violation in the decay of tagged $\overline{K}^0$ and $K^0$ to $\pi^{0}\pi^{0}\pi^{0}$ |
| title_short | Search for CP violation in the decay of tagged $\overline{K}^0$ and $K^0$ to $\pi^{0}\pi^{0}\pi^{0}$ |
| title_sort | search for cp violation in the decay of tagged $\overline{k}^0$ and $k^0$ to $\pi^{0}\pi^{0}\pi^{0}$ |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.1016/S0370-2693(98)00256-1 http://cds.cern.ch/record/344288 |
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