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| 題名: | Measurements of B → D ¯ Ds0∗+ (2317) decay rates and a search for isospin partners of the Ds0∗+ (2317) |
| 作者: | 陳鎰鋒;Choi, S.-K.;Olsen, S. L.;Adachi, I.;Aihara, H.;Asner, D. M.;Aushev, T.;Babu, V.;Badhrees, I.;Bozek, A.;Browder, T. E.;Chen, A.;Chilikin, K.;Cho, K.;Chobanova, V.;Choi, Y.;Cinabro, D.;Dalseno, J.;Danilov, M.;Drásal, Z.;Drutskoy, A.;Dutta, D.;Farhat, H.;Fast, J. E.;Gaur, V.;Gabyshev, N.;Garmash, A.;Glattauer, R.;Goh, Y. M.;Golob, B.;He, X. H.;Hou, W.-S.;Iijima, T.;Inami, K.;Inguglia, G.;Ishikawa, A.;Julius, T.;Kato, E.;Katrenko, P.;Kawasaki, T.;Kim, B. H.;Kim, J. H.;Kim, S. H.;Ko, B. R.;Kodyš, P.;Krokovny, P.;Kwon, Y.-J.;Lange, J. S.;Lewis, P.;Li, H.;Libby, J.;Lukin, P.;Miyata, H.;Mizuk, R.;Mohanty, G. B.;Moll, A.;Moon, H. K.;Mori, T.;Nakano, E.;Natkaniec, Z.;Nayak, M.;Nisar, N. K.;Nishida, S.;Ogawa, S.;Pakhlov, P.;Pal, B.;Park, C. W.;Park, H.;Pesántez, L.;Pestotnik, R.;Petrič, M.;Ribežl, E.;Sakai, Y.;Sanuki, T.;Sato, Y.;Savinov, V.;Schwanda, C.;Senyo, K.;Sevior, M. E.;Shapkin, M.;Shibata, T.-A.;Shiu, J.-G.;Shwartz, B.;Sohn, Y.-S.;Solovieva, E.;Starič, M.;Tanaka, S.;Trusov, V.;Unno, Y.;Uno, S.;Usov, Y.;Vanhoefer, P.;Varner, G.;Vinokurova, A.;Wagner, M. N.;Wang, X. L.;Won, E.;Yashchenko, S.;Zhilich, V.;Zhulanov, V.;Zupanc, A. |
| 貢獻者: | 理學院物理學系 |
| 日期: | 2015-05-28 |
| 上傳時間: | 2026-04-23 12:26:28 (UTC+8) |
| 出版者: | American Physical Society;United States: American Physical Society (APS) |
| 摘要: | 摘要： In this work, we report improved measurements of the product branching fractions B ( B+ → D ¯ 0Ds0*+ ( 2317 ) ) × B ( Ds0*+ ( 2317 ) → Ds+π0 ) = ( 8.0-1.2+1.3±1.1±0.4 ) ×10-4 and B ( B0 → D-Ds0*+ ( 2317 ) ) × B ( Ds0*+ ( 2317 ) → Ds+π0 ) = ( 10.2-1.2+1.3±1.0±0.4 ) ×10-4 , where the first errors are statistical, the second are systematic and the third are from D and Ds+ branching fractions. In addition, we report negative results from a search for hypothesized neutral ( z 0 ) and doubly charged ( z ++ ) isospin partners of the Ds0*+ ( 2317 ) and provide upper limits on the product branching fractions B ( B0 → D0 z 0 ) × B ( z 0 → Ds+π- ) and B ( B+ → D- z ++ ) × B ( z ++ → Ds+π+ ) that are more than an order of magnitude smaller than theoretical expectations for the hypotheses that the Ds0*+ ( 2317 ) is a member of an isospin triplet. The analysis uses a 711fb-1 data sample containing 772 million B B ¯ -meson pairs collected at the Υ ( 4S ) resonance in the Belle detector at the KEKB collider.
出版者： United States: American Physical Society (APS)
出版日期： 2015-05-28
出處： Physical review. D, Particles, fields, gravitation, and cosmology, 2015-05, Vol.91 (9), Article 092011
識別號： ISSN: 1550-7998
識別號： EISSN: 1550-2368
識別號： DOI: 10.1103/PhysRevD.91.092011 |
| 顯示於類別: | [物理學系] 期刊論文
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