Measurement of ratio R =BR(D~0→πππ)/BR(D~0→Kπ) in π~?-Nucleus interactions at 500 GeV/c

机译：比率R = Br（D〜0→ππππ）/ Br（d〜0→kπ）在500 gev / c中的π〜nucleus相互作用

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We report a very preliminary result on the measurement of the ratio of branching ratios, for two decays D0 meson, R ==BR(D~0→πππ)/BR(D~0→Kπ) , using data from the E791 experiment. We find R = 1.96±0.0286 (stat)±0.06 (sys). This is in agreement with and of similar precision to the current PDG average value 1.97±0.09.

机译：我们在分支比率的测量上报告了一个非常初步的结果，对于两种衰减d0 meson，r == br（d〜0→πππ）/ br（d〜0→kπ），使用来自E791实验的数据。我们发现r = 1.96±0.0286（stat）±0.06（SYS）。这与当前PDG平均值为1.97±0.09的相似性和相似的精度。

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来源
《Latin American Symposium on Nuclear Physics and Applications》|2007年||共2页
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C. J. Solano Salinas; C. Paucarchuco; A. Fernandez; M. Sheaff;
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原文格式 PDF
正文语种
中图分类 O57-532;
关键词
charm mesons; detectors; hadro-production;

机译：魅力蒙塞森;探测器;Hadro-生产;

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2. Dilepton measurements in nucleon-nucleon and nucleus-nucleus interactions from E_beam = 1 to 5 GeV [J] . W.K.Wilson Acta Physica Polonica. B . 1998,第11期

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3. A Measurement of the psi ' to J/psi production ratio in 920 GeV proton-nucleus interactions [J] . Abt I, Adams M, Agari M, The European physical journal, C. Particles and fields . 2007,第2期

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4. Measurement of ratio R =BR(D~0→πππ)/BR(D~0→Kπ) in π~?-Nucleus interactions at 500 GeV/c [C] . C. J. Solano Salinas, C. Paucarchuco, A. Fernandez, Latin American Symposium on Nuclear Physics and Applications . 2007

机译：比率R = Br（D〜0→ππππ）/ Br（d〜0→kπ）在500 gev / c中的π〜nucleus相互作用
5. A Measurement of the Relative Branching Ratio BR(Bminus going to D0Kminus)/BR(B minus going to D0piminus) in Three D0 Decay Modes [D] . Fang, Hung-Chung 2011

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7. Hyperon production asymmetries in 500 GeV/c pion nucleus interactions [O] . Solano, J M, Magnin, J, Simão, F R A 1997

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Measurement of ratio R =BR(D~0→πππ)/BR(D~0→Kπ) in π~?-Nucleus interactions at 500 GeV/c

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