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%。
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。
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。
Improvedvalues for the branching fractions of XcJ going to π+π-and K+K- are found to beB(Xc0→π+π-)=(4.
同时定出了ＸｃＪ（Ｊ＝０，２）到π＋π＝和Ｋ＋Ｋ－的衰变分支比。
27×106 produced (2S) events,we have set upper limits at 90% confidence level on the branching fractions into ρπof 3.
２７×１０６ψ（２Ｓ）事例研究了末态为矢量介子与赝标量分子的ψ（２Ｓ）两体衰变过程，ψ（２Ｓ）→ρπ及ＫＫ，得到它们的衰变分支比上限在９０％置信度下分别为３。
Ecological environment destruction and agricultural production decay in Shanxi in Qing dynasty;
清代陕西生态环境的破坏与农业生产的衰变
From the test,the performance decay law of the modified bitumen and its mechanism were obtained.
通过模拟SBS改性沥青在生产、运输和施工等情况下的高温储存状况,对成品改性沥青的针入度、软化点、延度和弹性恢复等主要性能指标进行了全面试验,获得了高温储存时改性沥青的性能衰变规律,并分析提出了其性能衰变机理。