Measurements of Branching Fractions and Time-dependent CP Violating Asymmetries in $B^{0} \to D^{(*)\pm}D^{\mp}$ Decays
| العنوان: | Measurements of Branching Fractions and Time-dependent CP Violating Asymmetries in $B^{0} \to D^{(*)\pm}D^{\mp}$ Decays |
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| المؤلفون: | Collaboration, B, Röhrken, M, Adachi, I, Aihara, H, Asner, DM, Aulchenko, V, Aushev, T, Bakich, AM, Barrett, M, Belous, K, Bhardwaj, V, Bhuyan, B, Bischofberger, M, Bondar, A, Bonvicini, G, Bozek, A, Bračko, M, Brovchenko, O, Browder, TE, Chang, MC, Chen, A, Chen, P, Cheon, BG, Chilikin, K, Cho, IS, Cho, K, Choi, Y, Dalseno, J, Doležal, Z, Drásal, Z, Drutskoy, A, Eidelman, S, Fast, JE, Feindt, M, Gaur, V, Gabyshev, N, Garmash, A, Goh, YM, Haba, J, Hayashii, H, Horii, Y, Hoshi, Y, Hou, WS, Hsiung, YB, Hyun, HJ, Iijima, T, Ishikawa, A, Itoh, R, Iwabuchi, M, Iwasaki, Y, Julius, T, Kang, JH, Kawasaki, T, Kiesling, C, Kim, HJ, Kim, HO, Kim, JB, Kim, JH, Kim, KT, Kim, MJ, Kim, YJ, Kinoshita, K, Ko, BR, Koblitz, S, Kodyš, P, Korpar, S, Kouzes, RT, Križan, P, Krokovny, P, Kronenbitter, B, Kuhr, T, Kumita, T, Kwon, YJ, Lee, SH, Li, J, Li, Y, Libby, J, Liu, C, Liu, Y, Liu, ZQ, Liventsev, D, Louvot, R, Miyabayashi, K, Miyata, H, Mizuk, R, Mohanty, GB, Moll, A, Mori, T, Muramatsu, N, Nagasaka, Y, Nakano, E, Nakao, M, Natkaniec, Z, Nishida, S, Nitoh, O, Ogawa, S, Ohshima, T, Okuno, S, Olsen, SL, Ozaki, H, Pakhlova, G, Park, CW, Park, H, Park, HK, Park, KS, Pedlar, TK, Pestotnik, R, Petrič, M, Piilonen, LE, Poluektov, A, Prim, M, Prothmann, K, Ritter, M, Ryu, S, Sahoo, H, Sakai, Y, Sanuki, T, Sato, Y, Schneider, O, Schwanda, C, Schwartz, AJ, Senyo, K, Seon, O, Sevior, ME, Shapkin, M, Shen, CP, Shibata, TA, Shiu, JG, Shwartz, B, Sibidanov, A, Simon, F, Singh, JB, Smerkol, P, Sohn, YS, Sokolov, A, Solovieva, E, Stanič, S, Starič, M, Sumisawa, K, Sumiyoshi, T, Trabelsi, K, Uchida, M, Uehara, S, Unno, Y, Uno, S, Urquijo, P, Vanhoefer, P, Varner, G, Varvell, KE, Vorobyev, V, Wang, CH, Wang, MZ, Wang, P, Watanabe, M, Watanabe, Y, Williams, KM, Won, E, Yamamoto, H, Yamashita, Y, Zander, D, Zhang, ZP, Zhilich, V, Zhulanov, V, Zupanc, A |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, High Energy Physics - Experiment |
| الوصف: | We report measurements of branching fractions and time-dependent CP asymmetries in $B^{0} \to D^{+}D^{-}$ and $B^{0} \to D^{*\pm}D^{\mp}$ decays using a data sample that contains $(772 \pm 11)\times 10^6 B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We determine the branching fractions to be $\mathcal{B}(B^{0} \to D^{+}D^{-})=(2.12 \pm 0.16 \pm 0.18)\times 10^{-4}$ and $\mathcal{B}(B^{0} \to D^{*\pm}D^{\mp}=(6.14 \pm 0.29 \pm 0.50)\times 10^{-4}$. We measure CP asymmetry parameters $\mathcal{S}_{D^{+}D^{-}} = -1.06_{-0.14}^{+0.21} \pm 0.08$ and $\mathcal{C}_{D^{+}D^{-}} = -0.43 \pm 0.16 \pm 0.05$ in $B^{0} \to D^{+}D^{-}$ and $\mathcal{A}_{D^{*}D} = +0.06 \pm 0.05 \pm 0.02$, $\mathcal{S}_{D^{*}D} = -0.78 \pm 0.15 \pm 0.05$, $\mathcal{C}_{D^{*}D} = -0.01 \pm 0.11 \pm 0.04$, $\Delta\mathcal{S}_{D^{*}D} = -0.13 \pm 0.15 \pm 0.04$ and $\Delta\mathcal{C}_{D^{*}D} = +0.12 \pm 0.11 \pm 0.03$ in $B^{0} \to D^{*\pm}D^{\mp}$, where the first uncertainty is statistical and the second is systematic. We exclude the conservation of CP symmetry in both decays at equal to or greater than $4\sigma$ significance. Comment: 7 pages, 2 figures |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfe3ba888b8add659ee0f63330cd0ae3 http://arxiv.org/abs/1203.6647 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....bfe3ba888b8add659ee0f63330cd0ae3 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |