資料載入中.....
|
請使用永久網址來引用或連結此文件:
https://ir.lib.ncu.edu.tw/handle/987654321/105168
|
| 題名: | Measurement of branching fraction and first evidence of CP violation in B0→a1±(1260)π- Decays |
| 作者: | 陳鎰鋒;Adachi, I.;Asner, D. M.;Aushev, T.;Belous, K.;Bozek, A.;Bračko, M.;Brovchenko, O.;Browder, T. E.;Chekelian, V.;Chen, P.;Cheon, B. G.;Chistov, R.;Cho, K.;Choi, Y.;Doležal, Z.;Drásal, Z.;Fast, J. E.;Gaur, V.;Gabyshev, N.;Garmash, A.;Goh, Y. M.;Hayashii, H.;Horii, Y.;Hoshi, Y.;Hou, W.-S.;Iijima, T.;Inami, K.;Ishikawa, A.;Itoh, R.;Iwashita, T.;Julius, T.;Kang, J. H.;Kiesling, C.;Kim, H. O.;Kim, J. B.;Kim, Y. J.;Kinoshita, K.;Ko, B. R.;Kodyš, P.;Korpar, S.;Križan, P.;Krokovny, P.;Kumita, T.;Lee, S.-H.;Libby, J.;Matvienko, D.;Miyata, H.;Miyazaki, Y.;Mohanty, G. B.;Mohapatra, D.;Moll, A.;Nakao, M.;Natkaniec, Z.;Nedelkovska, E.;Ng, C.;Nishida, S.;Nishimura, K.;Ogawa, S.;Ohshima, T.;Okuno, S.;Pakhlov, P.;Pakhlova, G.;Park, C. W.;Park, H. K.;Pedlar, T. K.;Petrič, M.;Prim, M.;Prothmann, K.;Ritter, M.;Sakai, Y.;Sanuki, T.;Schneider, O.;Schwanda, C.;Schwartz, A. J.;Senyo, K.;Sevior, M. E.;Shapkin, M.;Shen, C. P.;Shibata, T.-A.;Shiu, J.-G.;Sibidanov, A.;Simon, F.;Smerkol, P.;Sohn, Y.-S.;Starič, M.;Sumihama, M.;Tatishvili, G.;Uchida, M.;Uehara, S.;Unno, Y.;Uno, S.;Vanhoefer, P.;Varner, G.;Wang, C. H.;Watanabe, M.;Williams, K. M.;Yabsley, B. D.;Yamashita, Y.;Zhilich, V.;Zupanc, A. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | ddc:530;FOS: Physical sciences;High Energy Physics - Experiment;High Energy Physics - Experiment (hep-ex);info:eu-repo/classification/ddc/530;Physics |
| 日期: | 2012-11-26 |
| 上傳時間: | 2026-04-23 12:09:18 (UTC+8) |
| 出版者: | American Physical Society;American Physical Society (APS) |
| 摘要: | 摘要： We present a measurement of the branching fraction and time-dependent CP violation parameters in B0 --> a_1^+-(1260) pi^-+ decays. The results are obtained from the final data sample containing 772x10^6 BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We also measure an upper limit on the product branching fraction for a possible decay with the same final state B0 --> a_2^+-(1320) pi^-+. In a time-dependent measurement to extract CP asymmetries, we find evidence of mixing-induced CP violation in B0 --> a_1^+-(1260) pi^-+ decays with a 3.1 sigma significance and the rate where the a_1^+-(1260) does not contain the spectator quark is found to dominate the rate where it does at the 4.1 sigma level. However, there is no evidence for either time and flavor integrated direct CP violation or flavor-dependent direct CP violation. 24 pages, 6 figures, Submitted to PRD
出版者： American Physical Society (APS)
出版日期： 2012-11-26
出處： Physical Review D, 2012-11, Vol.86 (9)
識別號： ISSN: 1550-7998
識別號： DOI: 10.1103/physrevd.86.092012
識別號： DOI: 10.48550/arxiv.1205.5957 |
| 顯示於類別: | [物理學系] 期刊論文
|
文件中的檔案:
| 檔案 |
描述 |
大小 | 格式 | 瀏覽次數 |
|---|
| index.html | | 0Kb | HTML | 19 | 檢視/開啟 |
|
在NCUIR中所有的資料項目都受到原著作權保護.
|
