CINECA IRIS Institutional Research Information System

A measurement of the direct CP violating charge asymmetries of the Dalitz plot linear slopes Ag = (g(+) - g(-))/(g(+) + g(-)) in K-+/- -> pi(+/-) pi(+) pi(-) and K-+/- -> pi(+/-) pi(0) pi(0) decays by the NA48/2 experiment at CERN SPS is presented. A new technique of asymmetry measurement involving simultaneous K+ and K- beams and a large data sample collected allowed a result of an unprecedented precision. The charge asymmetries were measured to be A(g)(c) = (-1.5 +/- 2.2) x 10(-4) with 3.11 x 10(9) K-+/- -> pi(+/-) pi(+) pi(-) decays, and A(g)(n) = (1.8 +/- 1.8) x 10(-4) with 9.13 x 10(7) K-+/- -> pi(+/-) pi(0) pi(0) decays. The precision of the results is limited mainly by the size of the data sample.

Search for direct CP violating charge asymmetries in K-+/- -> pi(+/-)pi(+)pi(-) and K-+/- -> pi(+/-)pi(0)pi(0) decays.

COSTANTINI, FLAVIO;GIUDICI, SERGIO;LAMANNA, GIANLUCA;SOZZI, MARCO STANISLAO;
2007-01-01

Abstract

A measurement of the direct CP violating charge asymmetries of the Dalitz plot linear slopes Ag = (g(+) - g(-))/(g(+) + g(-)) in K-+/- -> pi(+/-) pi(+) pi(-) and K-+/- -> pi(+/-) pi(0) pi(0) decays by the NA48/2 experiment at CERN SPS is presented. A new technique of asymmetry measurement involving simultaneous K+ and K- beams and a large data sample collected allowed a result of an unprecedented precision. The charge asymmetries were measured to be A(g)(c) = (-1.5 +/- 2.2) x 10(-4) with 3.11 x 10(9) K-+/- -> pi(+/-) pi(+) pi(-) decays, and A(g)(n) = (1.8 +/- 1.8) x 10(-4) with 9.13 x 10(7) K-+/- -> pi(+/-) pi(0) pi(0) decays. The precision of the results is limited mainly by the size of the data sample.
2007
Batley, Jr; Culling, Aj; Kalmus, G; Lazzeroni, C; Munday, Dj; Slater, Mw; Wotton, Sa; Arcidiacono, R; Bocquet, G; Cabibbo, N; Ceccucci, A; Cundy, D; Falaleev, V; Fidecaro, M; Gatignon, L; Gonidec, A; Kubischta, W; Norton, A; Maier, A; Patel, M; Peters, A; Balev, S; Frabetti, Pl; Goudzovski, E; Hristov, P; Kekelidze, V; Kozhuharov, V; Litov, L; Madigozhin, D; Marinova, E; Molokanova, N; Polenkevich, I; Potrebenikov, Y; Stoynev, S; Zinchenko, A; Monnier, E; Swallow, E; Rubin, P; Walker, A; Baldini, W; Ramusino, Ac; Dalpiaz, P; Damiani, C; Fiorini, M; Gianoli, A; Martini, M; Petrucci, F; Savrie, M; Scarpa, M; Wahl, 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, Cm; Renk, B; Wache, M; Wanke, R; Winhart, A; Coward, D; Dabrowski, A; Martin, Tf; Shieh, M; Szleper, M; Velasco, M; Wood, Md; Anzivino, G; Cenci, P; Imbergamo, E; Nappi, A; Pepe, M; Petrucci, Mc; Piccini, M; Raggi, M; Valdata Nappi, M; Cerri, C; Collazuol, G; Costantini, Flavio; Dilella, L; Doble, N; Fantechi, R; Fiorini, L; Giudici, Sergio; Lamanna, Gianluca; Mannelli, I; Michetti, A; Pierazzini, G; Sozzi, MARCO STANISLAO; Bloch Devaux, B; Cheshkov, C; Cheze, Jb; De Beer, M; Derre, J; Marel, G; Mazzucato, E; Peyaud, B; Vallage, B; Holder, M; Ziolkowski, M; Bifani, S; Biino, C; Cartiglia, N; Clemencic, M; Lopez, Sg; Marchetto, F; Dibon, H; Jeitler, M; Markytan, M; Mikulec, I; Neuhofer, G; Widhalm, L.
1.1 Articolo in rivista
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/180344
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 166
  • ???jsp.display-item.citation.isi??? 93
social impact