CPLEAR results on the CP parameters of neutral kaons decaying to pi(+)pi(-)pi(0) (Journal article)

Adler, R./ Angelopoulos, A./ Apostolakis, A./ Aslanides, E./ Backenstoss, G./ Bargassa, P./ Bee, C. P./ Behnke, O./ Benelli, A./ Bertin, V./ Blanc, F./ Bloch, P./ Carlson, P./ Carroll, M./ Carvalho, J./ Cawley, E./ Charalambous, S./ Chardin, G./ Chertok, M. B./ Cody, A./ Danielsson, M./ Dejardin, M./ Derre, J./ Ealet, A./ Eckart, B./ Eleftheriadis, C./ Evangelou, I./ Faravel, L./ Fassnacht, P./ Felder, C./ FerreiraMarques, R./ Fetscher, W./ Fidecaro, M./ Filipcic, A./ Francis, D./ Fry, J./ Gabathuler, E./ Gamet, R./ Garreta, D./ Gerber, H. J./ Go, A./ Guyot, C./ Haselden, A./ Hayman, P. J./ HenryCouannier, F./ Hollander, R. W./ Hubert, E./ JonAnd, K./ Kettle, P. R./ Kochowski, C./ Kokkas, P./ Kreuger, R./ LeGac, R./ Leimgruber, F./ Liolios, A./ Machado, E./ Mandic, I./ Manthos, N./ Marel, G./ Mikuz, M./ Miller, J./ Montanet, F./ Muller, A./ Nakada, T./ Pagels, B./ Papadopoulos, I./ Pavlopoulos, P./ daCunha, J. P./ Policarpo, A./ Polivka, G./ Rickenbach, R./ Roberts, B. L./ Ruf, T./ Sakeliou, L./ Sanders, P./ Santoni, C./ Schafer, M./ Schaller, L. A./ Schietinger, T./ Schopper, A./ Schune, P./ Soares, A./ Tauscher, L./ Thibault, C./ Touchard, F./ Touramanis, C./ Triantis, F./ VanBeveren, E./ VanEijk, C. W. E./ Vlachos, S./ Weber, P./ Wigger, O./ Wolter, M./ Yeche, C./ Zavrtanik, D./ Zimmerman, D.


The CPLEAR experiment measured time-dependent decay-rate asymmetries of K-0 and (K) over bar(0) decaying to pi(+)pi(-)pi(0) in order to study the interference between the decay amplitudes of K-S(0) - either CP-violating or CP-conserving - and the CP-conserving K-L(0) decay amplitude. From the analysis of the complete data set we find for the CP-violating parameter eta(+-0), Re((+-0)) = (-2 +/- 7 stat. (+4)(-1) syst.) x 10(-3), Im(eta(+-0)) = (-2 +/- 9 stat. (+2)(-1) syst.) x 10(-3) and for the CP-conserving parameter lambda, Re(lambda) = (+28 +/- 7 stat. +/-3 syst.) x 10(-3), Im(lambda) = (-10 +/- 8 stat. +/- 2 syst.) x 10(-3). From the latter, the branching ratio of the CP-conserving (KS)-S-0 --> pi(+)pi(-)pi(0) decay is deduced to be B = (2.5(-1.0)(+1.3) stat. (+0.5)(-0.6) systs.) x 10(-7). (C) 1997 Elsevier Science B.V.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών
URI: http://olympias.lib.uoi.gr/jspui/handle/123456789/16421
ISSN: 0370-2693
Item type: journalArticle
Link: <Go to ISI>://WOS:A1997XP97100016
http://ac.els-cdn.com/S0370269397007570/1-s2.0-S0370269397007570-main.pdf?_tid=2433dfe81a67bc83085ceb487fa3638b&acdnat=1334228373_b54524a386334f923236ae9e33e2ffa1
Item access scheme: campus
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών
Publication date: 1997
Abstract: The CPLEAR experiment measured time-dependent decay-rate asymmetries of K-0 and (K) over bar(0) decaying to pi(+)pi(-)pi(0) in order to study the interference between the decay amplitudes of K-S(0) - either CP-violating or CP-conserving - and the CP-conserving K-L(0) decay amplitude. From the analysis of the complete data set we find for the CP-violating parameter eta(+-0), Re((+-0)) = (-2 +/- 7 stat. (+4)(-1) syst.) x 10(-3), Im(eta(+-0)) = (-2 +/- 9 stat. (+2)(-1) syst.) x 10(-3) and for the CP-conserving parameter lambda, Re(lambda) = (+28 +/- 7 stat. +/-3 syst.) x 10(-3), Im(lambda) = (-10 +/- 8 stat. +/- 2 syst.) x 10(-3). From the latter, the branching ratio of the CP-conserving (KS)-S-0 --> pi(+)pi(-)pi(0) decay is deduced to be B = (2.5(-1.0)(+1.3) stat. (+0.5)(-0.6) systs.) x 10(-7). (C) 1997 Elsevier Science B.V.
Journal name: Physics Letters B
Journal type: peer reviewed
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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