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在一代Technicolor(TCI)和带有一个无质量的标量二重态(TCⅡ)模型下,计算荷电的哥尔斯通粒子对衰变B_c→D_sγ的贡献,并把它们同标准模型的计算相比较,发现哥尔斯通粒子对电磁企鹅图的贡献很大(TCI下),在TCⅡ下贡献较小;而对弱湮没图的贡献可以忽略不计,还对同位旋三重态粒子π+p的质量进行了约束。预言将来在LHC上能对不同模型下的分支比Br(Bc→Dsγ)的差异进行研究,进而对不同的模型进行检验。
In a generation of Technicolor (TCI) and with a massless scalar doublet (TCII) model, the contribution of charged Goldstone particles to decay B_c → D_sγ is calculated and compared with the standard model calculations , We find that the contribution of the Goldstone particles to electromagnetic penguin maps is large (under TCI) and contribution to TCII is small, while the contribution to weak annihilation maps is negligible, and the mass of π + p isomorphic triplet particles constraint. It is predicted that in the future, the differences between the branching ratios Br (Bc → Dsγ) under different models will be studied on the LHC, and then different models will be tested.