Details

Autor(en) / Beteiligte

• Aubert, B.
• Barate, R.
• Boutigny, D.
• Couderc, F.
• Gaillard, J.M.
• Hicheur, A.
• Karyotakis, Y.
• Lees, J.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.
• Kukartsev, G.
• Le Clerc, C.
• Lynch, G.
• Merchant, A. M.
• Mir, L. M.
• Oddone, P. J.
• Orimoto, T.J.
• Pripstein, M.
• Roe, N.A.
• Ronan, M. T.
• Shelkov, V.G.
• Wenzel, W.A.
• Ford, K.
• Harrison, T.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.
• Çuhadar-Dönszelmann, T.
• Hearty, C.
• Knecht, N.S.
• Mattison, T.S.
• Mckenna, J.A.
• Thiessen, D.
• Khan, A.
• Kyberd, P.
• Teodorescu, L.
• Blinov, V.E.
• Bukin, A.D.
• 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.A.
• Mommsen, R.K.
• Röthel, W.
• Stoker, D.P.
• Buchanan, C.
• Hartfiel, B.L.
• Gary, J.W.
• Shen, B.C.

Titel

Search for $B^\pm \to (K^\mp \pi^\pm )(D) K^\pm$ and upper limit on the $b \to u$ amplitude in $B^\pm \to D K^\pm

Ist Teil von

• Physical review letters, 2004, Vol.93

Ort / Verlag

American Physical Society

Erscheinungsjahr

2004

Quelle

APS_美国物理学会过刊

Beschreibungen/Notizen

• We search for B+/- --> [K^-/+ pi+/-]_D K+/- decays, where [K-/+ pi+/-]_D indicates that the K-/+ pi+/- pair originates from the decay of a D0 or D0bar. Results are based on 120 million Upsilon(4S) --> B Bbar decays collected with the BaBar detector at SLAC. We set an upper limit on the ratio R_Kpi = {Gamma(B+ --> [K- pi+]_D K+) + Gamma(B- --> [K+ pi-]_D K-)}/ {Gamma(B+ --> [K+ pi-]_D K+) + Gamma(B- --> [K- pi+]_D K-)} < 0.026 (90% C.L.). This constrains the amplitude ratio r_B = |A(B- --> D0bar K-)/A(B- --> D0 K-)| < 0.22 (90% C.L.), consistent with expectations. The small value of r_B favored by our analysis suggests that the determination of the Cabibbo-Kobayashi-Maskawa phase gamma from B --> D K will be difficult.