Limits on the decay-rate difference of neutral B mesons and on CP, T, and CPT violation in $B^0Bbar^0$ oscillations

Limits on the decay-rate difference of neutral B mesons and on CP, T, and CPT violation in $B^0Bbar^0$ oscillations

Using events in which one of two neutral B mesons from the decay of an Y(4S) meson is fully reconstructed, we determine parameters governing decay (\Delta\Gamma_d/\Gamma_d), CP and T violation (|q/p|), and CP and CPT violation (Rez,Imz). The results, obtained from an analysis of 88 million Y(4S) dec...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Physical review letters 2004, Vol.92
Hauptverfasser: Aubert, B., Barate, R., Boutigny, D., Gaillard, J.M., Hicheur, A., Karyotakis, Y., Lees, J.P., Robbe, P., Tisserand, V., Zghiche, A., Palano, A., Pompili, A., Chen, J C., Qi, N D., Rong, G., Wang, P., Zhu, y S., Eigen, G., Ofte, I., Stugu, B., Abrams, G S., Borgland, a W., Breon, a B., Brown, D N., Button-Shafer, J., Cahn, R N., Charles, E., Day, C T., Gill, M S., Gritsan, a V., Groysman, Y., Jacobsen, R G., Kadel, R W., Kadyk, J., Kerth, L T., Kolomensky Yu, G., Kral, J F., Kukartsev, G., Le Clerc, C., Levi, M E., Lynch, G., Mir, L M., Oddone, P J., Orimoto, T J., Pripstein, M., Roe, N A., Romosan, A., Ronan, M T., Shelkov, V G., Telnov, a V., Wenzel, W A., Ford, K., Harrison, T J., Hawkes, C M., Knowles, D J., Morgan, S E., Penny, R C., Watson, a T., Watson, N K., Deppermann, T., Goetzen, K., Koch, H., Lewandowski, B., Pelizaeus, M., Peters, K., Schmuecker, H., Steinke, M., Barlow, N R., Boyd, J T., Chevalier, N., Cottingham, W N., Kelly, M P., Latham, T E., Mackay, C., Wilson, F F., Abe, K., Cuhadar-Doenszelmann, T., Hearty, C., Mattison, T S., Mckenna, J A., Thiessen, D., Kyberd, P., Mckemey, a K., Blinov, V E., Bukin, a D., Golubev, V B., Ivanchenko, V N., Kravchenko, E A., Onuchin, a P., Serednyakov, S I., Skovpen Yu, I., Solodov, E P., Yushkov, a N., Best, D., Bruinsma, M., Chao, M., Kirkby, D., Lankford, a J., Mandelkern, M., Mommsen, R K.
Format: Artikel
Sprache:eng
Schlagworte:
High Energy Physics - Experiment
Physics
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Using events in which one of two neutral B mesons from the decay of an Y(4S) meson is fully reconstructed, we determine parameters governing decay (\Delta\Gamma_d/\Gamma_d), CP and T violation (|q/p|), and CP and CPT violation (Rez,Imz). The results, obtained from an analysis of 88 million Y(4S) decays recorded by BABAR, are -- sgn(Re(lambdaCP))\Delta\Gamma_d/Gamma_d = -0.008 +- 0.037 +- 0.018 -0.084, 0.068 ] |q/p| = 1.029 +- 0.013 +- 0.011 [ 1.001, 1.057 ] Re(lambdaCP)/|lambdaCP| Rez = 0.014 +- 0.035 +- 0.034 [ -0.072, 0.101 ] Imz = 0.038 +- 0.029 +- 0.025 [ -0.028, 0.104 ]. -- The values inside square brackets indicate the 90% confidence-level intervals. These results are consistent with Standard Model expectations.
ISSN:0031-9007
1079-7114