First direct observation of time-reversal non-invariance in the neutral-kaon system

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dc.contributor.authorAngelopoulos, A.en
dc.contributor.authorApostolakis, A.en
dc.contributor.authorAslanides, E.en
dc.contributor.authorBackenstoss, G.en
dc.contributor.authorBargassa, P.en
dc.contributor.authorBehnke, O.en
dc.contributor.authorBenelli, A.en
dc.contributor.authorBertin, V.en
dc.contributor.authorBlanc, F.en
dc.contributor.authorBloch, P.en
dc.contributor.authorCarlson, P.en
dc.contributor.authorCarroll, M.en
dc.contributor.authorCawley, E.en
dc.contributor.authorCharalambous, S.en
dc.contributor.authorChertok, M. B.en
dc.contributor.authorDanielsson, M.en
dc.contributor.authorDejardin, M.en
dc.contributor.authorDerre, J.en
dc.contributor.authorEalet, A.en
dc.contributor.authorEleftheriadis, C.en
dc.contributor.authorFaravel, L.en
dc.contributor.authorFetscher, W.en
dc.contributor.authorFidecaro, M.en
dc.contributor.authorFilipcic, A.en
dc.contributor.authorFrancis, D.en
dc.contributor.authorFry, J.en
dc.contributor.authorGabathuler, E.en
dc.contributor.authorGamet, R.en
dc.contributor.authorGerber, H. J.en
dc.contributor.authorGo, A.en
dc.contributor.authorHaselden, A.en
dc.contributor.authorHayman, P. J.en
dc.contributor.authorHenry-Couannier, F.en
dc.contributor.authorHollander, R. W.en
dc.contributor.authorJon-And, K.en
dc.contributor.authorKettle, P. R.en
dc.contributor.authorKokkas, P.en
dc.contributor.authorKreuger, R.en
dc.contributor.authorLe Gac, R.en
dc.contributor.authorLeimgruber, F.en
dc.contributor.authorMandic, I.en
dc.contributor.authorManthos, N.en
dc.contributor.authorMarel, G.en
dc.contributor.authorMikuz, M.en
dc.contributor.authorMiller, J.en
dc.contributor.authorMontanet, F.en
dc.contributor.authorMuller, A.en
dc.contributor.authorNakada, T.en
dc.contributor.authorPagels, B.en
dc.contributor.authorPapadopoulos, I.en
dc.contributor.authorPavlopoulos, P.en
dc.contributor.authorPolicarpo, A.en
dc.contributor.authorPolivka, G.en
dc.contributor.authorRickenbach, R.en
dc.contributor.authorRoberts, B. L.en
dc.contributor.authorRuf, T.en
dc.contributor.authorSantoni, C.en
dc.contributor.authorSchafer, M.en
dc.contributor.authorSchaller, L. A.en
dc.contributor.authorSchietinger, T.en
dc.contributor.authorSchopper, A.en
dc.contributor.authorTauscher, L.en
dc.contributor.authorThibault, C.en
dc.contributor.authorTouchard, F.en
dc.contributor.authorTouramanis, C.en
dc.contributor.authorVan Eijk, C. W. E.en
dc.contributor.authorVlachos, S.en
dc.contributor.authorWeber, P.en
dc.contributor.authorWigger, O.en
dc.contributor.authorWolter, M.en
dc.contributor.authorZavrtanik, D.en
dc.contributor.authorZimmerman, D.en
dc.contributor.authorCplear Collaborationen
dc.date.accessioned2015-11-24T18:28:21Z
dc.date.available2015-11-24T18:28:21Z
dc.identifier.issn0370-2693-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/16138
dc.rightsDefault Licence-
dc.titleFirst direct observation of time-reversal non-invariance in the neutral-kaon systemen
heal.abstractWe report on the first observation of time-reversal symmetry violation through a comparison of the probabilities of (K) over bar(0) transforming into K-0 and K-0 into (K) over bar(0) as a function of the neutral-kaon eigentime t. The comparison is based on the analysis of the neutral-kaon semileptonic decays recorded in the CPLEAR experiment. There, the strangeness of the neutral kaon at time t = 0 was tagged by the kaon charge in the reaction <p(p)over bar> --> K (+/-) pi (+/-) K-0 ((K) over bar(0)) at rest, whereas the strangeness of the kaon at the decay time t = tau was tagged by the lepton charge in the final state. An average decay-rate asymmetry [R((K) over bar<INF>t=0</INF><SUP>0</SUP> --> e<SUP>+</SUP>pi<SUP>-</SUP>nu<INF>t=tau</INF>) - R(K<INF>t=0</INF><SUP>0</SUP> --> e<SUP>-</SUP>pi<SUP>+</SUP><(nu)over bar><INF>t=tau</INF>)/R((K) over bar<INF>t=0</INF><SUP>0</SUP> --> e<SUP>+</SUP>pi<SUP>-</SUP>nu<INF>t=tau</INF>) + R(K<INF>t=0</INF><SUP>0</SUP> --> e<SUP>-</SUP>pi<SUP>+</SUP><(nu)over bar><INF>t=tau</INF>)] = (6.6 +/- 1.3<INF>stat</INF> +/- 1.0<INF>syst</INF>) X 10<SUP>-3 </SUP>was measured over the interval 1 tau(S) < tau < 20 tau(S), thus leading to evidence for time-reversal non-invariance. (C) 1998 Elsevier Science B.V. All righs reserved.en
heal.accesscampus-
heal.fullTextAvailabilityTRUE-
heal.identifier.primary10.1016/s0370-2693(98)01356-2-
heal.identifier.secondary<Go to ISI>://WOS:000077887700008-
heal.identifier.secondaryhttp://ac.els-cdn.com/S0370269398013562/1-s2.0-S0370269398013562-main.pdf?_tid=4e171cc0a0fe4874af763fbf85e4cdf0&acdnat=1334228409_c4ab5676b67b6202cb0b5bccae4c8334-
heal.journalNamePhysics Letters Ben
heal.journalTypepeer reviewed-
heal.publicationDate1998-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιώνel
heal.typejournalArticle-
heal.type.elΆρθρο Περιοδικούel
heal.type.enJournal articleen

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