A new measurement of direct CP violation in two pion decays of the neutralkaon

Authors
Fanti, V Lai, A Marras, D Musa, L Bevan, AJ Gershon, TJ Hay, B Moore, RW Moore, KN Munday, DJ Needham, MD Parker, MA Takach, SF White, TO Wotton, SA Barr, G Blumer, H Bocquet, G Bremer, J Ceccucci, A Cogan, J Cundy, D Doble, N Funk, W Gatignon, L Gianoli, A Gonidec, A Govi, G Grafstrom, P Kesseler, G Kubischta, W Lacourt, A Luitz, S Matheys, JP Norton, A Palestini, S Panzer-Steindel, B Peyaud, B Schinzel, D Taureg, H Velasco, M Vossnack, O Wahl, H Wirrer, G Gaponenko, A Kekelidze, V Madigojine, D Mestvirishvili, A Potrebenikov, Y Tatishvili, G Tkatchev, A Zinchenko, A Bertolotto, L Boyle, O Knowles, IG Martin, VJ Parsons, HLC Peach, KJ Talamonti, C Contalbrigo, M Dalpiaz, P Duclos, J Formica, A Frabetti, PL Martini, M Petrucci, F Savrie, M Bizzeti, A Calvetti, M Collazuol, G Graziani, G Iacopini, E Lenti, M Michetti, A Becker, HG Buchholz, P Coward, D Ebersberger, C Fox, H Kalter, A Kleinknecht, K Koch, U Kopke, L Renk, B Scheidt, J Schmidt, J Schonharting, V Schue, Y Wilhelm, R Wittgen, M Chollet, JC Crepe, S Fayard, L Iconomidou-Fayard, L Ocariz, J Unal, G Vattolo, D Wingerter-Seez, I Anzivino, G Bordacchini, F Cenci, P Lubrano, P Nappi, A Pepe, M Punturo, M Bertanza, L Bigi, A Calafiura, P Carosi, R Casali, R Cerri, C Cirilli, M Costantini, F Fantechi, R Giudici, S Gorini, B Manelli, I Marzulli, V Pierazzini, G Raffaelli, F Sozzi, M Cheze, JB De Beer, M Debu, P de Cassagnac, RG Hristov, P Mazzucato, E Schanne, S Turlay, R Vallage, B Augustin, I Bender, M Holder, M Ziolkowski, M Arcidiacono, R Biino, C Cester, R Marchetto, F Menichetti, E Pastrone, N Nassalski, J Rondio, E Szleper, M Wislicki, W Wronka, S Dibon, H Fischer, G Jeitler, M Markytan, M Mikulec, I Neuhofer, G Pernicka, M Taurok, A
Citation
V. Fanti et al., A new measurement of direct CP violation in two pion decays of the neutralkaon, PHYS LETT B, 465(1-4), 1999, pp. 335-348
Citations number
25
Categorie Soggetti
Physics
Journal title
PHYSICS LETTERS B
ISSN journal
03702693 → ACNP
Volume
465
Issue
1-4
Year of publication
1999
Pages
335 - 348
Database
ISI
SICI code
0370-2693(19991021)465:1-4<335:ANMODC>2.0.ZU;2-C
Abstract
The NA48 experiment at CERN has performed a new measurement of direct CP vi olation, based on data taken in 1997 by simultaneously collecting K-L and K -S decays into pi(0)pi(0) and pi(+)pi(-). The result for the CP violating p arameter Re(epsilon'/epsilon) is (18.5 +/- 4.5(stat) +/- 5.8(syst)) X 10(-4 ). (C) 1999 Elsevier Science B.V. All rights reserved.