| Evidence for the eta(b)(2S) and Observation of h(b)(1P) -> eta(b)(1S)gamma and h(b)(2P) -> eta(b)(1S)gamma |
| Belle Collaboration
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| 2012
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发表期刊 | PHYSICAL REVIEW LETTERS
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卷号 | 109期号:23 |
通讯作者 | Mizuk, R (reprint author), Inst Theoret & Expt Phys, Moscow, Russia.
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摘要 | We report the first evidence for the eta(b)(2S) using the h(b)(2P) -> eta(b)(2S)gamma transition and the first observation of the h(b)(1P) -> eta(b)(1S)gamma and h(b)(2P) -> eta(b)(1S)gamma transitions. The mass and width of the eta(b)(1S) and eta(b)(2S) are measured to be m(eta b(1S)) = (9402.4 +/- 1.5 +/- 1.8) MeV/c(2), m eta(b(2S)) = (9999.0 +/- 3.5 +/- 2.8 -1.9) MeV/c(2), and Gamma(eta b)(1S) = (10.8(-3.7-2.0)(+4.0+4.5)) MeV. We also update the h(b)(1P) and h(b)(2P) mass measurements. We use a 133.4 fb(-1) data sample collected at energies near the d5S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. |
关键词 | HADRON DECAY PROCESSES
QUARK-MODEL
ANNIHILATION
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学科领域 | Physics
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DOI | 10.1103/PhysRevLett.109.232002
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收录类别 | SCI
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语种 | 英语
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WOS类目 | Physics, Multidisciplinary
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WOS记录号 | WOS:000312013300001
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引用统计 |
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文献类型 | 期刊论文
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条目标识符 | http://ir.ihep.ac.cn/handle/311005/213392
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专题 | 实验物理中心
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作者单位 | 中国科学院高能物理研究所
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推荐引用方式 GB/T 7714 |
Belle Collaboration. Evidence for the eta(b)(2S) and Observation of h(b)(1P) -> eta(b)(1S)gamma and h(b)(2P) -> eta(b)(1S)gamma[J]. PHYSICAL REVIEW LETTERS,2012,109(23).
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APA |
Belle Collaboration.(2012).Evidence for the eta(b)(2S) and Observation of h(b)(1P) -> eta(b)(1S)gamma and h(b)(2P) -> eta(b)(1S)gamma.PHYSICAL REVIEW LETTERS,109(23).
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MLA |
Belle Collaboration."Evidence for the eta(b)(2S) and Observation of h(b)(1P) -> eta(b)(1S)gamma and h(b)(2P) -> eta(b)(1S)gamma".PHYSICAL REVIEW LETTERS 109.23(2012).
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