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Measurement of the Inclusive Electron Spectrum in Charmless Semileptonic B Decays near the Kinematic Endpoint and Determination of V(sub ub)

机译：运动终点附近无魅力semileptonic B衰变中包含电子能谱的测量及V（sub ub）的测定

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A preliminary result on the study of the inclusive electron spectrum in B(yields) X(sub u)e(nu) decays above the kinematic limit for the dominant B(yields) X(sub c)e(nu) transitions is presented. This study is performed at the PEP-II asymmetric B Factory, where B meson pairs are produced in the decay of the(Upsilon)(4S) resonance. For the electron momentum range of 2.3-2.6 GeV/c in the(Upsilon)(4S) rest frame, the partial branching ratio is measured to be(Delta)(Beta)(B(yields) X(sub u)e(nu))= (0.152(+-) 0.014(+-) 0.014)(center dot) 10(sup -3).

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作者
Skovpen, Y.;
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年度 2004
页码 p.1-26
总页数 26
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
B mesons; Electrons; Branching ratio; Resonance; Decay; Detector; Measurements;

机译：B介子;电子;分支比;共振;衰变;探测器;测量;

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专利

1. Determination of |V_(ub)| from Measurements of the Inclusive Charmless Semileptonic Partial Rates of B Mesons using Full Reconstruction Tags [J] . I. Bizjak, K. Abe, K. Abe, Physical review letters . 2005,第24期

机译：| V_（ub）|的确定使用完全重建标签测量B介子的包容性无魅力半轻子部分速率
2. Measurement of |V_(ub)| from Inclusive Charmless Semileptonic B Decays [J] . P. Urquijo, E. Barberio, I. Adachi, Physical review letters . 2010,第2期

机译：| V_（ub）|的测量来自包容的Charmless Semileptonic B衰变
3. Determination of ∣V_(ub)∣ from Measurements of the Electron and Neutrino Momenta in Inclusive Semileptonic B Decays [J] . B. Aubert, R. Barate, D. Boutigny, Physical review letters . 2005,第11期

机译：从包容性半轻子B衰变中电子和中微子蒙塔纳的测量确定∣V_（ub）∣
4. Improved measurement of V_(ub) with inclusive semileptonic B decays [C] . Stefan Anderson Lake Louise Winter Institute . 2003

机译：改进的测量 V_（UB）具有包容性半导体B衰变
5. Absolute branching fraction measurements and electron spectrum of inclusive charged and neutral D meson semileptonic decays. [D] . Redjimi, Radia. 2005

机译：包含绝对电荷和中性D介子半轻子衰变的绝对分支分数测量和电子光谱。
6. Measurement of masses in the ... formula ... system by kinematic endpoints in pp collisions at ... formula ... [O] . S. Chatrchyan, V. Khachatryan, A. M. Sirunyan, -1

机译：在方程式中pp碰撞中运动学终点通过方程式系统测量质量
7. Measurement of the inclusive electron spectrum in charmless semileptonic B decays near the kinematic endpoint and determination of V(ub) [O] . AUBERT B, N. CAVALLO, F. FABOZZI, 2006

机译：运动学终点附近无魅力半轻子B中包含电子谱的测量和V（ub）的确定

Measurement of the Inclusive Electron Spectrum in Charmless Semileptonic B Decays near the Kinematic Endpoint and Determination of V(sub ub)

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