Details

Autor(en) / Beteiligte

• Aubert, B.
• Bona, M.
• Boutigny, D.
• Karyotakis, Y.
• Lees, J.P.
• Poireau, V.
• Prudent, X.
• Tisserand, V.
• Zghiche, A.
• Grauges, E.
• Palano, A.
• Chen, J.C.
• Qi, N.D.
• Rong, G.
• Wang, P.
• Zhu, Y.S.
• Eigen, G.
• Ofte, I.
• Stugu, B.
• Abrams, G.S.
• Battaglia, M.
• Button-Shafer, J.
• Cahn, R.N.
• Groysman, Y.
• Jacobsen, R.G.
• Kadyk, J.A.
• Kerth, L.T.
• Kolomensky, Yu. G.
• Kukartsev, G.
• Lopes Pegna, D.
• Lynch, G.
• Mir, L.M.
• Orimoto, T.J.
• Pripstein, M.
• Roe, N.A.
• Ronan, M.T.
• Tackmann, K.
• Wenzel, W.A.
• del Amo Sanchez, P.
• Barrett, M.
• Harrison, T.J.
• Hart, A.J.
• Hawkes, C.M.
• Watson, A.T.
• Held, T.
• Koch, H.
• Lewandowski, B.
• Pelizaeus, M.
• Peters, K.
• Schroeder, T.
• Steinke, M.
• Boyd, J.T.
• Burke, J.P.
• Cottingham, W.N.
• Walker, D.
• Asgeirsson, D.J.
• Cuhadar-Donszelmann, T.
• Fulsom, B.G.
• Hearty, C.
• Knecht, N.S.
• Mattison, T.S.
• Mckenna, J.A.
• Khan, A.
• Kyberd, P.
• Saleem, M.
• Sherwood, D.J.
• Teodorescu, L.
• Blinov, V.E.
• Bukin, A.D.
• Druzhinin, V.P.
• Golubev, V.B.
• Onuchin, A.P.
• Serednyakov, S.I.
• Skovpen, Yu. I.
• Solodov, E.P.
• Todyshev, K. Yu
• Bondioli, M.
• Bruinsma, M.
• Chao, M.
• Curry, S.
• Eschrich, I.
• Kirkby, D.
• Lankford, A.J.
• Lund, P.
• Mandelkern, M.
• Martin, E.C.
• Stoker, D.P.
• Abachi, S.
• Buchanan, C.
• Foulkes, S.D.
• Gary, J.W.
• Liu, F.
• Long, O.
• Shen, B.C.
• Zhang, L.
• Hill, E.J.
• Paar, H.P.
• Rahatlou, S.
• Sharma, V.
• Berryhill, J.W.

Titel

Measurements of CP-Violating Asymmetries in $B^0 \to a^\{pm}_1(1260) \pi^{\mp}$ Decays

Ist Teil von

• Physical review letters, 2007, Vol.98

Ort / Verlag

American Physical Society

Erscheinungsjahr

2007

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• We present measurements of CP-violating asymmetries in the decay B0 -> a_1(1260)^{+-} pi^{-+} with a_1(1260)^{+-} -> pi^{-+} pi^{+-} pi^{+-}. The data sample corresponds to 384 million B B-bar pairs collected with the BaBar detector at the PEP-II asymmetric B-factory at SLAC. We measure the CP-violating asymmetry A^{a_1 \pi}_{CP}=-0.07+-0.07+-0.02, the mixing-induced CP violation parameter S_{a_1 \pi}= 0.37 +-0.21+-0.07, the direct CP violation parameter C_{a_1 \pi}=-0.10+-0.15+-0.09, and the parameters \Delta C_{a_1 \pi}=0.26+-0.15+-0.07 and \Delta S_{a_1\pi}=-0.14+-0.21+-0.06. From these measured quantities we determine the angle \alpha_{\rm eff}= 78.6^{\circ} +- 7.3^{\circ}.