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A new limit on the CP violating decay $K_{S}\rightarrow 3\pi ^{0}$ with the KLOE experiment

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A new limit on the CP violating decay $K_{S}\rightarrow 3\pi ^{0}$ with the KLOE experiment

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dc.contributor.author Babusci, D. pl
dc.contributor.author Badoni, D. pl
dc.contributor.author Pytko, Izabela [USOS61605] pl
dc.contributor.author Bencivenni, G. pl
dc.contributor.author Bloise, C. pl
dc.contributor.author Bossi, F. pl
dc.contributor.author Branchini, P. pl
dc.contributor.author Budano, A. pl
dc.contributor.author Capon, G. pl
dc.contributor.author Ceradini, F. pl
dc.contributor.author Curciarello, F. pl
dc.contributor.author Czerwiński, Eryk [SAP13037062] pl
dc.contributor.author Dane, E. pl
dc.contributor.author De Lucia, E. pl
dc.contributor.author De Robertis, G. pl
dc.contributor.author De Santis, A. pl
dc.contributor.author DiDomenico, A. pl
dc.contributor.author Di Donato, C. pl
dc.contributor.author Di Salvo, R. pl
dc.contributor.author Domenici, D. pl
dc.contributor.author Fanizzi, G. pl
dc.contributor.author Fantini, A. pl
dc.contributor.author Felici, G. pl
dc.contributor.author Fiore, S. pl
dc.contributor.author Franzini, P. pl
dc.contributor.author Gauzzi, P. pl
dc.contributor.author Giardina, G. pl
dc.contributor.author Giovannella, S. pl
dc.contributor.author Graziani, E. pl
dc.contributor.author Happacher, F. pl
dc.contributor.author Heijkenskjöld, L. pl
dc.contributor.author Höistad, B. pl
dc.contributor.author Iafolla, L. pl
dc.contributor.author Jacewicz, M. pl
dc.contributor.author Johansson, T. pl
dc.contributor.author Kupść, A. pl
dc.contributor.author Lee-Franzini, J. pl
dc.contributor.author Leverington, B. pl
dc.contributor.author Loffredo, S. pl
dc.contributor.author Mandaglio, G. pl
dc.contributor.author Martemianov, M. pl
dc.contributor.author Mascolo, M. pl
dc.contributor.author Messi, R. pl
dc.contributor.author Miscetti, S. pl
dc.contributor.author Morello,G. pl
dc.contributor.author Moricciahi, D. pl
dc.contributor.author Moskal, Paweł [SAP11015350] pl
dc.contributor.author Nguyen, F. pl
dc.contributor.author Passeriu, A. pl
dc.contributor.author Longhi, I. Prado pl
dc.contributor.author Ranieri, A. pl
dc.contributor.author Redmer, C. F. pl
dc.contributor.author Sarra, I. pl
dc.contributor.author Schioppa, M. pl
dc.contributor.author Sciascia, B. pl
dc.contributor.author Taccini, C. pl
dc.contributor.author Tortora, L. pl
dc.contributor.author Venanzoni, G. pl
dc.contributor.author Wolke, M. pl
dc.contributor.author Zdebik, Jarosław [USOS2045] pl
dc.contributor.author Bini, C. pl
dc.contributor.author Ciambrone, P. pl
dc.contributor.author De Leo, V. pl
dc.contributor.author Erriquez, O. pl
dc.contributor.author Gonnella, F. pl
dc.contributor.author Kacprzak, K. pl
dc.contributor.author Loddo, F. pl
dc.contributor.author Martini, M. pl
dc.contributor.author Patera, V. pl
dc.contributor.author Santangelo, P. pl
dc.contributor.author Silarski, Michał [SAP13036814] pl
dc.contributor.author Wiślicki, Wojciech pl
dc.contributor.author Caldeira Balkeståhl, L. pl
dc.date.accessioned 2015-05-26T10:13:25Z
dc.date.available 2015-05-26T10:13:25Z
dc.date.issued 2013 pl
dc.identifier.issn 0370-2693 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/8097
dc.language eng pl
dc.rights Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa *
dc.rights.uri http://creativecommons.org/licenses/by/4.0/pl/legalcode *
dc.title A new limit on the CP violating decay $K_{S}\rightarrow 3\pi ^{0}$ with the KLOE experiment pl
dc.type JournalArticle pl
dc.description.physical 54-60 pl
dc.description.additional Autorka Izabela Pytko podpisana jako: Izabela Balwierz-Pytko.
dc.abstract.en We have carried out a new direct search for the CP violating decay $K_{S}\rightarrow 3\pi ^{0}$ 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 $5.9 \times 10^{8} K_{S}K_{L}$ 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 $K_{S}\rightarrow 2\pi ^{0}$ events in the same sample, we set the upper limit on $BR\left ( K_{S}\rightarrow 3\pi^{0} \right )\leqslant 2.6 \times 10^{-8}$ at 90% C.L., five times lower than the previous limit. We also set the upper limit on the $\eta _{000}$ parameter, $\mid \eta _{000}\mid\leqslant 0.0088$ at 90% C.L., improving by a factor two the latest direct measurement. pl
dc.subject.en $e^{+}e^{-}$ collisions pl
dc.subject.en DA$\Phi$NE pl
dc.subject.en KLOE pl
dc.subject.en rare $K_{S}$ decays pl
dc.subject.en CP pl
dc.subject.en CPT pl
dc.description.volume 723 pl
dc.description.number 1-3 pl
dc.description.publication 0,5 pl
dc.identifier.doi 10.1016/j.physletb.2013.05.008 pl
dc.identifier.eissn 1873-2445 pl
dc.title.journal Physics Letters. B pl
dc.contributor.institution The KLOE-2 Collaboration pl
dc.language.container eng pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego pl
dc.subtype Article pl
dc.rights.original CC-BY; otwarte czasopismo; ostateczna wersja wydawcy; w momencie opublikowania; 0; pl
dc.identifier.project ROD UJ / P pl
.pointsMNiSW [2013 A]: 40


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Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa