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1)  branching process
分支(衰变)过程
2)  decay processes
衰变过程
1.
In the framework of top-color assisted Technicolor(TC2) theory,we study the decay processes of neutral top-pion at the tree level π~0_t→b,t,t and the decay processes of neutral top-pion at the loop level π~0_t→gg,γγ,γz.
在顶色辅助的人工色(TC2)理论模型中,研究了树图下中性top-pion(πt0)的衰变过程π0t→b-b,t-t,t-c和圈图下中性top-pion(π0t)的衰变过程π0t→gg,γγ,γz,通过对这些衰变过程的衰变分支比的计算,可以得到πt0在树图下的主要衰变过程为π0t→t-t,t-c,在圈图下的主要衰变过程为π0t→gg。
3)  branching decay
分支衰变
4)  catastrophes branching processes
突变分支过程
1.
We study aspecial kind of Markov chain-the catastrophes branching processes by theory of operatorsemigroup.
本文着力于用分析的方法,以算子半群理论为工具,来研究一类特殊的Markov过程——突变分支过程。
5)  Branching ratio
衰变分支比
1.
By comparing with the average value of latest data from some B factories,we find the theoretical branching ratios in SM are too small,but the New Physics effects in TC2 model greatly enhance the branching ratios to improve the consistency of the theoretical predictions with the experimental data.
发现TC2模型下的新物理贡献对企鹅图修正非常明显,对衰变分支比的影响可以达到120%。
2.
The decay J/ψ→φπ0π0 is studied with 7.0 × 10~6 produced J/ψ events collected by the Bening Spectrometer(BES) with the tugger mode senseuve to both chmped and neutral final state at the Bening Electron-Positron Collider(BEPC), The evidences for the existence of fJ(1710) and E(2230) in this channel are presented, and the corresponding masses as wen asthe product branching ratios are obtained.
除了在π~0π~0不变质量谱中看到了众所周知的f_2(1270)外,还证实了f_J(1710)和ξ(2230)的存在,同时给出了它们的质量以及相应的衰变分支比。
6)  decay branching ratio
衰变分支比
1.
In the mean time,several other decay branching ratios are predicted and are in agreement with experiments.
同时,对其他几个衰变分支比进行了预言并发现f0(1370)中|N〉的成分较大,而f0(1500)和f0(1710)更接近于纯胶球态。
补充资料:分支衰变
分子式:
CAS号:

性质:一个放射性核素可以按两种或多种方式衰变的情况。如64Cu可按β-、β+、EC三种方式衰变,每一种衰变方式即为一个分支衰变。

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