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标题：Branching Fractions and <svg style="vertical-align:-0.306pt;width:30.1875px;" id="M1" height="15.4625" version="1.1" viewBox="0 0 30.1875 15.4625" width="30.1875" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://www.w3.org/2000/svg"> <g transform="matrix(.022,-0,0,-.022,.062,15.013)"><path id="x1D436" d="M682 629q-1 -16 -1.5 -72t-2.5 -86l-31 -4q-5 92 -51 129t-139 37q-100 0 -177 -49t-116 -125t-39 -162q0 -122 66 -201t182 -79q83 0 137 42.5t112 128.5l26 -15q-12 -31 -42.5 -88t-45.5 -75q-139 -27 -199 -27q-148 0 -243 81.5t-95 226.5q0 173 129.5 274.5
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作者：Ying Li ; En-Lei Wang ; Hong-Yan Zhang 等
期刊名称：Advances in High Energy Physics
印刷版ISSN：1687-7357
电子版ISSN：1687-7365
出版年度：2013
卷号：2013
DOI：10.1155/2013/175287
出版社：Hindawi Publishing Corporation
摘要：Within the QCD factorization framework, we investigate the branching fractions and the direct asymmetries of decays and under two different scenarios in the standard model and the family nonuniversal model. We find that the annihilation terms play crucial roles in these decays and lead to the major uncertainties. For decays , the new boson could change the branching fractions remarkably. However, for other decays, its contribution might be clouded by large uncertainties from annihilations. Unfortunately, neither the standard model nor the model can reproduce all experimental data simultaneously under one certain scenario. We also noted that the direct asymmetries of could be used to identify the meson and search for the contribution of new boson.