论文标题
衰减$ h \ to z^\ ast(\toτ^+τ^ - )+z^\ ast(\toτ^+τ^ - )$中的相同粒子和Lepton质量效应
Identical particle and lepton mass effects in the decay $H\to Z^\ast(\toτ^+τ^-)+Z^\ast(\toτ^+τ^-)$
论文作者
论文摘要
我们考虑了级联衰变中的相同粒子和Lepton质量效应$ h \ to z^\ ast(\toτ^+τ^ - )+z^\ ast(\ totoτ^+τ^ - )$。 Since the scale of the problem is set by the off-shellness $p_a^2$ and $p_b^2$ of the respective gauge bosons in the limits ($4m_τ^2\le p_a^2,p_b^2\le (m_H-2m_τ)^2$) and not by $m_H^2$, lepton mass effects are nonnegligible in particular close to the threshold of the off-shell腐烂。我们计算速率和单角衰减分布,并将其与非相同粒子衰变的相应速率和单角衰减分布进行比较,$ h \ to z^\ ast(\ to e^+e^ - )+z^\ ast(\ tous^tous^tous^+us^+μ^ - )$涉及可忽略的Lepton Masses。
We consider identical particle and lepton mass effects in the cascade decay $H\to Z^\ast(\toτ^+τ^-)+Z^\ast(\toτ^+τ^-)$. Since the scale of the problem is set by the off-shellness $p_a^2$ and $p_b^2$ of the respective gauge bosons in the limits ($4m_τ^2\le p_a^2,p_b^2\le (m_H-2m_τ)^2$) and not by $m_H^2$, lepton mass effects are nonnegligible in particular close to the threshold of the off-shell decays. We calculate the rates and single angle decay distributions and compare them with the corresponding rates and single angle decay distributions for the nonidentical particle decays $H\to Z^\ast(\to e^+e^-)+Z^\ast(\toμ^+μ^-)$ involving negligible lepton masses.