Measurements of the absolute branching fractions of b+ -> xc(c)over-bark(+) and b+ -> (d)over-bar((*)0)pi(+) at belle
文献类型：期刊论文
| 作者 | Kato, Y.53; Iijima, T.52,53; Adachi, I.11,15; Aihara, H.79; Al Said, S.35,72; Asner, D. M.63; Aulchenko, V.3,61; Aushev, T.51; Ayad, R.72; Babu, V.73 |
| 刊名 | Physical review d
 |
| 出版日期 | 2018-01-25 |
| 卷号 | 97期号:1页码:10 |
| ISSN号 | 2470-0010 |
| DOI | 10.1103/physrevd.97.012005 |
| 通讯作者 | Kato, y.() |
| 英文摘要 | We present the measurement of the absolute branching fractions of b+ -> xc (c) over bark+ and b+ -> (d) over bar ((*)0)pi(+) decays, using a data sample of 772 x 10(6) b (b) over bar pairs collected at the gamma(4s) resonance with the belle detector at the kekb asymmetric-energy e(+)e(-) collider. here, x-c (c) over bar denotes eta(c), j/psi, chi(c0), chi(c1), eta(c) (2s), psi(2s), psi(3770), x(3872), and x(3915). we do not observe significant signals for x(3872) or x(3915) and set the 90% confidence level upper limits at b(b+ -> x(3872)k+) < 2.6 x 10(-4) and b(b+ -> x(3915)k+) < 2.8 x 10(-4). these represent the most stringent upper limit for b(b+ -> x(3872)k+) to date and the first limit for b(b+ -> x(3915)k+). the measured branching fractions for eta(c) and eta(c)(2s) are the most precise to date, b(b+ -> eta k-c(+)) = (12.0 +/- 0.8 +/- 0.7) x 10(-4) and b(b+ -> eta(c)(2s)k+) = (4.8 +/- 1.1 +/- 0.3) x 10(-4), where the first and second uncertainties are statistical and systematic, respectively. |
| WOS关键词 | X(3872) ; SEARCH ; DECAY |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 语种 | 英语 |
| WOS记录号 | WOS:000423429400003 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178238 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Kato, Y. |
| 作者单位 | 1.Univ Basque Country, UPV EHU, Bilbao 48080, Spain 2.Beihang Univ, Beijing 100191, Peoples R China 3.SB RAS, Budker Inst Nucl Phys, Novosibirsk 630090, Russia 4.Charles Univ Prague, Fac Math & Phys, Prague 12116, Czech Republic 5.Chonnam Natl Univ, Kwangju 660701, South Korea 6.Univ Cincinnati, Cincinnati, OH 45221 USA 7.DESY, D-22607 Hamburg, Germany 8.Univ Florida, Gainesville, FL 32611 USA 9.Justus Liebig Univ Giessen, D-35392 Giessen, Germany 10.Gifu Univ, Gifu 5011193, Japan |
| 推荐引用方式 GB/T 7714 | Kato, Y.,Iijima, T.,Adachi, I.,et al. Measurements of the absolute branching fractions of b+ -> xc(c)over-bark(+) and b+ -> (d)over-bar((*)0)pi(+) at belle[J]. Physical review d,2018,97(1):10. |
| APA | Kato, Y..,Iijima, T..,Adachi, I..,Aihara, H..,Al Said, S..,...&Zupanc, A..(2018).Measurements of the absolute branching fractions of b+ -> xc(c)over-bark(+) and b+ -> (d)over-bar((*)0)pi(+) at belle.Physical review d,97(1),10. |
| MLA | Kato, Y.,et al."Measurements of the absolute branching fractions of b+ -> xc(c)over-bark(+) and b+ -> (d)over-bar((*)0)pi(+) at belle".Physical review d 97.1(2018):10. |
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