Details

Autor(en) / Beteiligte

• Yamamoto, H
• Aihara, H
• Al Said, A
• Asner, D. M
• Aulchenko, V
• Aushev, T
• Ayad, R
• Badhrees, I
• Bahinipati, S
• Bakich, A. M
• Biswal, J
• Bonvicini, G
• Bozek, A
• Cheon, B. G
• Chilikin, K
• Cho, K
• Choi, Y
• Cinabro, D
• Danilov, M
• Doležal, Z
• Ferber, T
• Fulsom, B. G
• Gaur, V
• Gillard, R
• Glattauer, R
• Goldenzweig, P
• Grzymkowska, O
• Haba, J
• Hara, T
• Hayasaka, K
• Hayashii, H
• He, X. H
• Inami, K
• Iwasaki, Y
• Jaegle, I
• Kiesling, C
• Kim, D. Y
• Kim, K. T
• Kim, M. J
• Kim, S. H
• Kim, Y. J
• Kinoshita, K
• Korpar, S
• Krokovny, P
• Kuzmin, A
• Lange, J. S
• Lee, I. S
• Li, Y
• LiGioi, L
• Libby, J
• Liventsev, D
• Lukin, P
• Miyata, H
• Mohanty, G.B
• Mussa, R
• Nakao, M
• Nanut, T
• Natkaniec, Z
• Nisar, N. K
• Ogawa, S
• Okuno, S
• Pakhlov, P
• Park, C.W
• Park, H
• Pesántez, L
• Piilonen, L. E
• Pulvermacher, C
• Ribežl, E
• Rostomyan, A
• Sandilya, S
• Sato, Y
• Schnell, G
• Schwanda, C
• Sevior, M. E
• Shen, C. P
• Shibata, T.-A
• Shiu, J.-G
• Simon, F
• Sohn, Y.-S
• Stanič, S
• Sumiyoshi, T
• Tamponi, U
• Uchida, M
• Uno, S
• Urquijo, P
• Van Hulse, C
• Vinokurova, A
• Wagner, M. N
• Wang, M.-Z
• Wang, P
• Wang, X. L
• Watanabe, M
• Won, E
• Yamaoka, J
• Yamashita, Y
• Yashchenko, S
• Yook, Y
• Yuan, C. Z
• Zhang, Z. P
• Zhulanov, V

Titel

First model-independent Dalitz analysis of B 0 → DK ∗ 0 , D → K S 0 π + π − decay

Ist Teil von

• Progress of theoretical and experimental physics, 2016-04, Vol.2016 (4)

Ort / Verlag

Oxford University Press

Erscheinungsjahr

2016

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• We report a measurement of the amplitude ratio $r_S$ of $B^0 \to D^0K^{\ast 0}$ and $B^0 \to \bar {D^0}K^{\ast 0}$ decays with a Dalitz analysis of $D\to K_S^0\pi ^+\pi ^-$ decays, for the first time using a model-independent method. We set an upper limit $r_S < 0.87$ at the 68% confidence level, using the full data sample of $711\,{\rm fb}^{-1}$ corresponding to $772\times 10^6$ $B\bar {B}$ pairs collected at the $\Upsilon (4S)$ resonance with the Belle detector at the KEKB $e^+e^-$ collider. This result is obtained from observables $x_- = +0.4 ^{+1.0 +0.0}_{-0.6 -0.1} \pm 0.0$ , $y_- = -0.6 ^{+0.8 +0.1}_{-1.0 -0.0} \pm 0.1$ , $x_+ = +0.1 ^{+0.7 +0.0}_{-0.4 -0.1} \pm 0.1$ , and $y_+ = +0.3 ^{+0.5 +0.0}_{-0.8 -0.1} \pm 0.1$ , where $x_\pm = r_S \cos (\delta _S \pm \phi _3)$ , $y_\pm = r_S \sin (\delta _S \pm \phi _3)$ , and $\phi _3\ (\delta _S)$ is the weak (strong) phase difference between $B^0 \to D^0K^{\ast 0}$ and $B^0 \to \bar {D^0}K^{\ast 0}$ .