1ST DETERMINATION OF CP VIOLATION PARAMETERS FROM K(0)-(K)BAR-0 DECAY ASYMMETRY (Journal article)

Adler, R./ Alhalel, T./ Angelopoulos, A./ Apostolakis, A./ Aslanides, E./ Backenstoss, G./ Bee, C. P./ Bennet, J./ Bienlein, J. K./ Bloch, P./ Bula, C./ Burgun, G./ Carlson, P./ Carvalho, J./ Cawley, E./ Charalambous, S./ Chardalas, M./ Chardin, G./ Cobbaert, H./ Dedoussis, S./ Dejardin, M./ Derre, J./ Dodgson, M./ Dousse, J. C./ Duclos, J./ Ealet, A./ Eckart, B./ Faravel, L./ Fassnacht, P./ Faure, J. L./ Felder, C./ Ferreiramarques, R./ Fetscher, W./ Fidecaro, M./ Filipcic, A./ Francis, D./ Fry, J. R./ Fuglesang, C./ Gabathuler, E./ Gamet, R./ Garreta, D./ Geralis, T./ Gerber, H. J./ Go, A./ Gumplinger, P./ Guyot, C./ Harrison, P. F./ Hayman, P. J./ Heyes, W. G./ Hollander, R. W./ Jansson, K./ Johner, H. U./ Jonand, K./ Kerek, A./ Kern, J./ Kettle, P. R./ Kochowski, C./ Kokkas, P./ Kreuger, R./ Lawry, T./ Legac, R./ Machado, E./ Maley, P./ Manthos, N./ Marel, G./ Mikuz, M./ Miller, J. P./ Montanet, F./ Nakada, T./ Onofre, A./ Pagels, B./ Pavlopoulos, P./ Pelucchi, F./ Dacunha, J. P./ Policarpo, A./ Polivka, G./ Postma, H./ Rickenbach, R./ Roberts, B. L./ Rozaki, E./ Ruf, T./ Sacks, L./ Sakeliou, L./ Sanders, P./ Santoni, C./ Sarigiannis, K./ Schafer, M./ Schaller, L./ Schopper, A./ Schune, P./ Seljak, U./ Szilagyi, S./ Tauscher, L./ Thibault, C./ Touchard, F./ Touramanis, C./ Triantis, F./ Troester, D. A./ Vanbeveren, E./ Vandenputte, M./ Vaneijk, C. W. E./ Varner, G./ Vlachos, S./ Weber, P./ Witzig, C./ Yeche, C./ Zavrtanik, D./ Zimmerman, D.


We report the first determination of CP violation parameters from particle-antiparticle asymmetry in the decay of neutral kaons into two charged pions. Observation of such an asymmetry is direct proof of CP violation. A fit to the asymmetry enabled a determination of the parameter-eta+- to be made, yielding the result \eta+-\ = [2.32 +/- 0.14 (stat. ) +/- 0.03 (syst.)] X 10(-3) and phi+- = 42.3-degrees +/- 4.4-degrees (stat.) +/- 0.4-degrees (syst. ), with an additional uncertainty of +/-1.0-degrees due to the error on the present published value of DELTA-m, the K(L)0-K(S)0 mass difference. The magnitudes of both statistical and systematic errors will be significantly reduced in the future.
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/123456789/16841
ISSN: 0370-2693
Link: <Go to ISI>://WOS:A1992JG15900030
http://ac.els-cdn.com/0370269392901787/1-s2.0-0370269392901787-main.pdf?_tid=2467b58f6b1a2227e7ceba76889c9ec4&acdnat=1334228346_4084e2e9bf84e7e9bbe0fd3b1ae2d799
Appears in Collections:Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)

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