دورية أكاديمية
A new limit on the CP violating decay K-S -> 3 pi(0) with the KLOE experiment
| العنوان: | A new limit on the CP violating decay K-S -> 3 pi(0) with the KLOE experiment |
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| المؤلفون: | D. Babusci, D. Badoni, I. Balwierz Pytko, G. Bencivenni, C. Bloise, F. Bossi, P. Branchini, A. Budano, L. C. Balkestahl, G. Capon, F. Ceradini, R. Ciambrone, F. Curciarelloi, E. Czerwiriski, E. Dane, V. D. Leo, E. D. Lucia, G. D. Robertis, A. D. Santis, V. De Leo, E. De Lucia, G. De Robertis, A. De Santis, C. D. Donato, R. D. Salvo, C. Di Donato, R. Di Salvo, D. Domenici, O. Erriquez, G. Fanizzi, A. Fantini, G. Felici, G. Giardina, S. Giovannella, F. Gonnella, E. Graziani, F. Happacher, L. Heijkenskjold, B. Hoistad, L. Iafolla, M. Jacewicz, T. Johansson, K. Kacprzak, A. Kupsc, J. Lee Franzini, B. Leverington, F. Loddo, S. Loffredo, G. Mandaglio, M. Martemianov, M. Martini, M. Mascolo, R. Messi, S. Miscetti, G. Morello, D. Moricciahi, P. Moskal, F. Nguyen, A. Passeriu, I. P. Longhi, A. Ranieri, C. F. Redmer, P. Santangelo, I. Sarra, M. Schioppa, B. Sciascia, M. Silarski, C. Taccini, L. Tortora, G. Venanzoni, W. Wislicki, M. Wolke, J. Zdebik, BINI, Cesare, DI DOMENICO, Antonio, FIORE, SALVATORE, FRANZINI, Paolo, GAUZZI, Paolo, PATERA, Vincenzo |
| المساهمون: | D., Babusci, D., Badoni, I., Balwierz Pytko, G., Bencivenni, Bini, Cesare, C., Bloise, F., Bossi, P., Branchini, A., Budano, L. C., Balkestahl, G., Capon, F., Ceradini, R., Ciambrone, F., Curciarelloi, E., Czerwiriski, E., Dane, V. D., Leo, E. D., Lucia, G. D., Roberti, A. D., Santi, V., De Leo, E., De Lucia, G., De Roberti, A., De Santi, DI DOMENICO, Antonio, C. D., Donato, R. D., Salvo, C., Di Donato, R., Di Salvo, D., Domenici, O., Erriquez, G., Fanizzi, A., Fantini, G., Felici, Fiore, Salvatore, Franzini, Paolo, Gauzzi, Paolo, G., Giardina, S., Giovannella, F., Gonnella, E., Graziani, F., Happacher, L., Heijkenskjold, B., Hoistad, L., Iafolla, M., Jacewicz, T., Johansson, K., Kacprzak, A., Kupsc, J., Lee Franzini, B., Leverington, F., Loddo, S., Loffredo, G., Mandaglio, M., Martemianov, M., Martini, M., Mascolo, R., Messi, S., Miscetti, G., Morello, D., Moricciahi, P., Moskal, F., Nguyen, A., Passeriu, Patera, Vincenzo, I. P., Longhi, A., Ranieri, C. F., Redmer, P., Santangelo, I., Sarra, M., Schioppa, B., Sciascia, M., Silarski, C., Taccini, L., Tortora, G., Venanzoni, W., Wislicki, M., Wolke, J., Zdebik |
| بيانات النشر: | ELSEVIER SCIENCE BV |
| سنة النشر: | 2013 |
| المجموعة: | Sapienza Università di Roma: CINECA IRIS |
| مصطلحات موضوعية: | cp, cpt, da phi ne, e(+)e(-) collision, kloe, rare k-s decays |
| الوصف: | We have carried out a new direct search for the CP violating decay K-S -> 3 pi(0) with 1.7 fb(-1) of e(+)e(-) collisions collected by the KLOE detector at the Phi-factory DA Phi NE. We have searched for this decay in a sample of about 5.9 x 10(8) KSKL events tagging the K-S by means of the K-L interaction in the calorimeter and requiring six prompt photons. With respect to our previous search, the analysis has been improved by increasing of a factor four the tagged sample and by a more effective background rejection of fake K-S tags and spurious clusters. We find no candidates in data and simulated background samples, while we expect 0.12 standard model events. Normalizing to the number of K-S -> 2 pi(0) events in the same sample, we set the upper limit on BR(K-S -> 3 pi(0)) <= 2.6 x 10(-8) at 90% C.L., five times lower than the previous limit. We also set the upper limit on the eta(000) parameter, vertical bar eta(000)vertical bar <= 0.0088 at 90% C.L., improving by a factor two the latest direct measurement. (c) 2013 Elsevier B.V. All rights reserved. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/WOS:000320206500006; volume:723; issue:1-3; firstpage:54; lastpage:60; numberofpages:7; journal:PHYSICS LETTERS. SECTION B; http://hdl.handle.net/11573/529903Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84878191796; http://://WOS:000320206500006Test |
| DOI: | 10.1016/j.physletb.2013.05.008 |
| الإتاحة: | https://doi.org/10.1016/j.physletb.2013.05.008Test http://hdl.handle.net/11573/529903Test http:// |
| رقم الانضمام: | edsbas.5ED7C363 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.physletb.2013.05.008 |
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