| Article | |
| Report number | CERN-PH-EP-2006-006 |
| Title | Search for direct CP-violation in $K^{\pm} \to \pi^{\pm} \pi^{0} \pi^{0}$ decays |
| Author(s) |
Batley, J Richard ; Culling, A J ; Kalmus, George Ernest ; Lazzeroni, C ; Munday, D J ; Slater, M W ; Wotton, S A ; Arcidiacono, R ; Bocquet, G ; Cabibbo, Nicola ; Ceccucci, A ; Cundy, Donald C ; Falaleev, V ; Fidecaro, Maria (CERN) ; Gatignon, L ; Gonidec, A ; Kubischta, Werner ; Norton, A ; Maier, A ; Patel, M ; Peters, A ; Balev, S ; Frabetti, P L ; Goudzovski, E ; Khristov, P Z ; Kekelidze, V D ; Kozhuharov, V ; Litov, L ; Madigozhin, D T ; Marinova, E ; Molokanova, N A ; Polenkevich, I ; Potrebenikov, Yu K ; Stoynev, S ; Zinchenko, A I ; Monnier, E ; Swallow, E ; Winston, R ; Rubin, P ; Walker, A ; Baldini, W ; Cotta-Ramusino, A ; Dalpiaz, P ; Damiani, C ; Fiorini, M ; Gianoli, A ; Martini, M ; Petrucci, F ; Savrié, M ; Scarpa, M ; Wahle, H ; Bizzeti, A ; Calvetti, M ; Celeghini, E ; Iacopini, E ; Lenti, M ; Martelli, F ; Ruggiero, G ; Veltri, M ; Behler, M ; Eppard, K ; Kleinknecht, K ; Marouelli, P ; Masetti, L ; Moosbrugger, U ; Morales-Morales, C ; Renk, B ; Wache, M ; Wanke, R ; Winhart, A ; Coward, D ; Dabrowski, A ; Fonseca-Martin, T ; Shieh, M ; Szleper, M ; Velasco, M ; Wood, M D ; Anzivino, Giuseppina ; Cenci, P ; Imbergamo, E ; Nappi, A ; Pepé, M ; Petrucci, M C ; Piccini, M ; Raggi, M ; Valdata-Nappi, M ; Cerri, C ; Collazuol, G ; Costantini, F ; Di Lella, Luigi ; Doble, Niels T ; Fantechi, R ; Fiorini, L ; Giudici, Sergio ; Lamanna, G ; Mannelli, I ; Michetti, A ; Pierazzini, G M ; Sozzi1, M ; Bloch-Devaux, B ; Cheshkov, C ; Chèze, J B ; De Beer, M ; Derr, J ; Marel, Gérard ; Mazzucato, E ; Peyaud, B ; Vallage, B ; Holder, M ; Ziolkowski, M ; Bifani, S ; Biino, C ; Cartiglia, N ; Clemencic, M ; Goy-Lopez, S ; Marchetto, F ; Dibon, Heinz ; Jeitler, Manfred ; Markytan, Manfred ; Mikulec, I ; Neuhofer, G ; Widhalm, L |
| Affiliation | (Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE, UK1) ; (CERN) ; (JINR, Dubna, Russian Federation) ; (Enrico Fermi Institute, The University of Chicago, Chicago) ; (University of Edinburgh, Edinburgh) ; (Università e Sezione dell'INFN di Ferrara, Ferrara) ; (Università e Sezione dell'INFN di Firenze, Firenze) ; (Institut für Physik, Univ. Mainz, Mainz) ; (Northwestern University, Evanston) ; (Università e Sezione dell'INFN di Perugia, Perugia) ; (Università, Scuola Normale Superiore e Sezione dell'INFN di Pisa, Pisa) ; (DSM/DAPNIA-CEA Saclay, Gif-sur-Yvette) ; (Univ. Siegen, Siegen) ; (Università e Sezione dell'INFN di Torino, Torino) ; (Österreichische Akademie der Wissenschaften, Institut für Hochenergiephysik, Wien) |
| Publication | 2006 |
| Imprint | 03 Apr 2006 |
| Number of pages | 14 |
| In: | Phys. Lett. B 638, 1 (2006) pp.22-29 |
| Subject category | Particle Physics - Experiment |
| Accelerator/Facility, Experiment | CERN SPS ; NA48 |
| Abstract | A search for direct CP-violation in $K^{\pm}\rightarrow \pi^\pm \pi^0 \pi^0$ decay 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 $A_g = (1.8 \pm 2.6) \cdot10^{-4}$. 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. |
Corresponding record in: Inspire ; INSPIRE
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記錄創建於2006-05-29，最後更新在2017-12-08
