Details

Autor(en) / Beteiligte

• Horii, Y
• Trabelsi, K
• Aihara, H
• Arinstein, K
• Aulchenko, V
• Aushev, T
• Barberio, E
• Belous, K
• Bischofberger, M
• Bozek, A
• Browder, T E
• Chang, M-C
• Cheon, B G
• Chiang, C-C
• Cho, I-S
• Cho, K
• Choi, Y
• Doležal, Z
• Eidelman, S
• Feindt, M
• Gaur, V
• Garmash, A
• Golob, B
• Ha, H
• Haba, J
• Hayasaka, K
• Hoshi, Y
• Hyun, H J
• Iijima, T
• Ishikawa, A
• Iwabuchi, M
• Iwasaki, Y
• Iwashita, T
• Joshi, N J
• Julius, T
• Kawasaki, T
• Kiesling, C
• Kim, M J
• Kim, Y J
• Kinoshita, K
• Kobayashi, N
• Korpar, S
• Križan, P
• Kumar, R
• Kwon, Y -J
• Lee, M J
• Lee, S-H
• Li, J
• Liu, C
• McOnie, S
• Miyata, H
• Miyazaki, Y
• Mohanty, G B
• Moll, A
• Mori, T
• Muramatsu, N
• Nakano, E
• Nishida, S
• Nitoh, O
• Ohshima, T
• Pakhlova, G
• Park, C W
• Pestotnik, R
• Piilonen, L E
• Poluektov, A
• Prim, M
• Prothmann, K
• Röhrken, M
• Ryu, S
• Sakai, Y
• Schneider, O
• Schwartz, A J
• Senyo, K
• Sevior, M E
• Shapkin, M
• Shebalin, V
• Shen, C P
• Shibata, T-A
• Shiu, J-G
• Simon, F
• Smerkol, P
• Sohn, Y -S
• Stanič, S
• Starič, M
• Sumiyoshi, T
• Suzuki, S
• Tanaka, S
• Uchida, M
• Uehara, S
• Uglov, T
• Usov, Y
• Varner, G
• Vinokurova, A
• Vossen, A
• Wang, P
• Wicht, J
• Yamashita, Y
• Zander, D
• Zhang, Z P
• Zupanc, A

Titel

Evidence for the suppressed decay B(-)→DK(-), D→K(+)π(-)

Ist Teil von

• Physical review letters, 2011-06, Vol.106 (23), p.231803-231803

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2011

Link zum Volltext

Quelle

American Physical Society

Beschreibungen/Notizen

• The suppressed decay chain B(-)→DK(-), D→K(+)π(-), where D indicates a D(¯)(0) or D(0) state, provides important information on the CP-violating angle ϕ(3). We measure the ratio R(DK) of the decay rates to the favored mode B(-)→DK(-), D→K(-)π(+) to be R(DK)=[1.63(-0.41)(+0.44)(stat)(-0.13)(+0.07)(syst)]×10(-2), which indicates the first evidence of the signal with a significance of 4.1σ. We also measure the asymmetry A(DK) between the charge-conjugate decays to be A(DK)=-0.39(-0.28)(+0.26)(stat)(-0.03)(+0.04)(syst). The results are based on the full 772×10(6) BB(¯) pair data sample collected at the Υ(4S) resonance with the Belle detector.