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Article
Report number hep-ex/0606007
Title Search for direct CP-violation in $K^{\pm}\to \pi^{\pm}\pi^{0}\pi^{0}$ decays
Related titleCP VIOLATION
CHARGE PARITY
Author(s)

Batley, J.R. (Cambridge U.) ; Culling, A.J. (Cambridge U.) ; Kalmus, G. (Cambridge U.) ; Lazzeroni, C. (Cambridge U.) ; Munday, D.J. (Cambridge U.) ; Slater, M.W. (Cambridge U.) ; Arcidiacono, R. (CERN) ; Bocquet, G. (CERN) ; Cabibbo, N. (CERN) ; Ceccucci, A. (CERN) ; Cundy, D. (CERN) ; Falaleev, V. (CERN) ; Fidecaro, M. (CERN) ; Gatignon, L. (CERN) ; Gonidec, A. (CERN) ; Kubischta, W. (CERN) ; Norton, A. (CERN) ; Maier, A. (CERN) ; Patel, M. (CERN) ; Peters, A. (CERN) ; Balev, S. (Dubna, JINR) ; Frabetti, P.L. (Dubna, JINR) ; Goudzovski, E. (Dubna, JINR) ; Hristov, P. (Dubna, JINR) ; Kekelidze, V. (Dubna, JINR) ; Kozhuharov, V. (Dubna, JINR) ; Litov, L. (Dubna, JINR) ; Madigozhin, D. (Dubna, JINR) ; Marinova, E. (Dubna, JINR) ; Molokanova, N. (Dubna, JINR) ; Polenkevich, I. (Dubna, JINR) ; Potrebenikov, Yu. (Dubna, JINR) ; Stoynev, S. (Dubna, JINR) ; Zinchenko, A. (Dubna, JINR) ; Monnier, E. (Chicago U., EFI) ; Swallow, E. (Chicago U., EFI) ; Winston, R. (Chicago U., EFI) ; Rubin, P. (Edinburgh U., Inst. Astron.) ; Walker, A. (Edinburgh U., Inst. Astron.) ; Baldini, W. (Ferrara U. ; INFN, Ferrara) ; Cotta Ramusino, A. (Ferrara U. ; INFN, Ferrara) ; Dalpiaz, P. (Ferrara U. ; INFN, Ferrara) ; Damiani, C. (Ferrara U. ; INFN, Ferrara) ; Fiorini, M. (Ferrara U. ; INFN, Ferrara) ; Gianoli, A. (Ferrara U. ; INFN, Ferrara) ; Martini, M. (Ferrara U. ; INFN, Ferrara) ; Petrucci, F. (Ferrara U. ; INFN, Ferrara) ; Savrie, M. (Ferrara U. ; INFN, Ferrara) ; Scarpa, M. (Ferrara U. ; INFN, Ferrara) ; Wahl, H. (Ferrara U. ; INFN, Ferrara) ; Bizzeti, A. (Florence U. ; INFN, Florence) ; Calvetti, M. (Florence U. ; INFN, Florence) ; Celeghini, E. (Florence U. ; INFN, Florence) ; Iacopini, E. (Florence U. ; INFN, Florence) ; Lenti, M. (Florence U. ; INFN, Florence) ; Martelli, F. (Florence U. ; INFN, Florence) ; Ruggiero, G. (Florence U. ; INFN, Florence) ; Veltri, M. (Florence U. ; INFN, Florence) ; Behler, M. (Mainz U., Inst. Kernphys.) ; Eppard, K. (Mainz U., Inst. Kernphys.) ; Kleinknecht, K. (Mainz U., Inst. Kernphys.) ; Marouelli, P. (Mainz U., Inst. Kernphys.) ; Masetti, L. (Mainz U., Inst. Kernphys.) ; Moosbrugger, U. (Mainz U., Inst. Kernphys.) ; Morales Morales, C. (Mainz U., Inst. Kernphys.) ; Renk, B. (Mainz U., Inst. Kernphys.) ; Wache, M. (Mainz U., Inst. Kernphys.) ; Wanke, R. (Mainz U., Inst. Kernphys.) ; Winhart, A. (Mainz U., Inst. Kernphys.) ; Coward, D.H. (Northwestern U.) ; Dabrowski, A. (Northwestern U.) ; Fonseca Martin, T. (Northwestern U.) ; Shieh, M. (Northwestern U.) ; Szleper, M. (Northwestern U.) ; Velasco, M. (Northwestern U.) ; Wood, M.D. (Northwestern U.) ; Anzivino, G. (Perugia U. ; INFN, Perugia) ; Cenci, P. (Perugia U. ; INFN, Perugia) ; Imbergamo, E. (Perugia U. ; INFN, Perugia) ; Nappi, A. (Perugia U. ; INFN, Perugia) ; Pepe, M. (Perugia U. ; INFN, Perugia) ; Petrucci, M.C. (Perugia U. ; INFN, Perugia) ; Piccini, M. (Perugia U. ; INFN, Perugia) ; Raggi, M. (Perugia U. ; INFN, Perugia) ; Valdata-Nappi, M. (Perugia U. ; INFN, Perugia) ; Cerri, C. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Collazuol, G. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Costantini, F. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; DiLella, L. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Doble, N. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Fantechi, R. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Fiorini, L. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Giudici, S. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Lamanna, G. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Mannelli, I. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Michetti, A. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Pierazzini, G. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Sozzi, M. (Pisa U. ; Pisa, Scuola Normale Superiore ; INFN, Pisa) ; Bloch-Devaux, Brigitte (DAPNIA, Saclay) ; Cheshkov, C. (DAPNIA, Saclay) ; Cheze, J.B. (DAPNIA, Saclay) ; De Beer, M. (DAPNIA, Saclay) ; Derre, J. (DAPNIA, Saclay) ; Marel, G. (DAPNIA, Saclay) ; Mazzucato, E. (DAPNIA, Saclay) ; Peyaud, B. (DAPNIA, Saclay) ; Vallage, B. (DAPNIA, Saclay) ; Holder, M. (Siegen U.) ; Ziolkowski, M. (Siegen U.) ; Bifani, S. (Turin U. ; INFN, Turin) ; Biino, C. (Turin U. ; INFN, Turin) ; Cartiglia, N. (Turin U. ; INFN, Turin) ; Clemencic, M. (Turin U. ; INFN, Turin) ; Goy Lopez, S. (Turin U. ; INFN, Turin) ; Dibon, H. (Vienna, OAW) ; Jeitler, M. (Vienna, OAW) ; Markytan, M. (Vienna, OAW) ; Mikulec, I. (Vienna, OAW) ; Neuhofer, G. (Vienna, OAW) ; Widhalm, L. (Vienna, OAW)

Publication 2006
Imprint 2 Jun 2006
Number of pages 14
In: Phys. Lett. B 638 (2006) pp.22-29
DOI 10.1016/j.physletb.2006.05.008
10.1016/j.physletb.2006.08.001
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; NA48/2
Abstract A search for direct CP-violation in K+- --> pi+-pi0pi0 decays based on 47.14 million events has been performed by the NA48/2 experiment at the CERN SPS. The asymmetry in the Dalitz plot linear slopes A_g=(g^+ - g^-)/(g^+ + g^-) is measured to be A_g=(1.8 +- 2.6).10^{-4}. The design of the experiment and the method of analysis provide good control of instrumental charge asymmetries in this measurement. The precision of the result is limited by statistics and is almost one order of magnitude better than that of previous measurements by other experiments.
Copyright/License Elsevier B.V.

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 记录创建於2006-06-06,最後更新在2024-06-13


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