Details

Autor(en) / Beteiligte

• Aubert, B.
• Barate, R.
• Boutigny, D.
• Couderc, F.
• Gaillard, J.M.
• Karyotakis, Y.
• Lees, J.P.
• Poireau, V.
• 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.
• Kukartsev, G.
• Lynch, G.
• Mir, L.M.
• Oddone, P.J.
• Orimoto, T.J.
• Pripstein, M.
• Roe, N.A.
• Ronan, M.T.
• Shelkov, V.G.
• Wenzel, W.A.
• Barrett, M.
• Ford, K.E.
• Harrison, T.J.
• Hart, A.J.
• Hawkes, C.M.
• Morgan, S.E.
• Watson, A.T.
• Fritsch, M.
• Goetzen, K.
• Held, T.
• Koch, H.
• Lewandowski, B.
• Pelizaeus, M.
• Steinke, M.
• Boyd, J.T.
• Chevalier, N.
• Cottingham, W.N.
• Kelly, M.P.
• Latham, T.E.
• Wilson, F.F.
• Cuhadar-Donszelmann, T.
• Hearty, C.
• Knecht, N.S.
• Mattison, T.S.
• Mckenna, J.A.
• Thiessen, D.
• Khan, A.
• Kyberd, P.
• Teodorescu, L.
• Blinov, A.E.
• Blinov, V.E.
• Druzhinin, V.P.
• 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.
• Eschrich, I.
• Kirkby, D.
• Lankford, A.J.
• Mandelkern, M.
• Mommsen, R.K.
• Roethel, W.
• Stoker, D.P.
• Buchanan, C.
• Hartfiel, B.L.
• Foulkes, S.D.
• Gary, J.W.

Titel

Improved Measurement of CP Asymmetries in $B^0 \to (c\bar{c})K^{0()}$ Decays

Ist Teil von

• Physical review letters, 2005, Vol.94

Ort / Verlag

American Physical Society

Erscheinungsjahr

2005

Quelle

APS - PROLA

Beschreibungen/Notizen

• We present results on time-dependent $CP$ asymmetries in neutral $B$ decays to several $CP$ eigenstates. The measurements use a data sample of about 227 million $\Upsilon$(4S) $\rightarrow B\overline{B}$ decays collected by the BABAR detector at the PEP-II asymmetric-energy $B$ Factory at SLAC. The amplitude of the CP asymmetry, sin2$\Beta$ in the Standard Model, is derived from decay-time distributions from events in which one neutral $B$ meson is fully reconstructed in a final state containing a charmonium meson and the other $B$ meson is determined to be either a $B^0$ or $\overline{B}^0$ from its decay products. We measure sin2$\Beta$ = 0.722 $\pm$ 0.040 (stat.) $\pm$ 0.23 (syst.) in agreement with the Standard Model expectation.