摘要
当一个轻黑格斯玻色子除外的所有超对称粒子的质量谱都超重而不可能在目前的强子对撞机上产生时,就需要寻求其他的途径来探索超对称信号的存在证据．黑格斯玻色子产生相关过程的超对称粒子虚修正效应提供了可能性．研究了强子对撞机上轻黑格斯玻色子和一个bottom夸克对末态产生过程的超对称QCD修正效应．结果发现,如果过程相关的超对称粒子胶微子和标夸克太重(大于TeV 标度)而不能直接产生,但是它们对此过程依然有显著的虚修正效应．尤其是对于大的tanβ值,这种残留效应可以为截面带来超过40％的修正．显然这样大的修正结果在将来的强子对撞机上是可观的．
If all the supersymmetry particles （sparticles） except a light Higgs boson are too heavy to be directly produced at the Large Hadron Collider （LHC）, a possible way to reveal evidence for supersymmetry is through their virtual effects in other processes. We examine such supersymmetric QCD effects in bottom pair production associated with a light Higgs boson at the LHC. We find that if the relevant sparticles （gluinos and squarks） are too heavy to be directly produced well above the TeV scale, they can still have sizable virtual effects in this process. For large tanβ, such residual effects can alter the production rate by over 40 percent, which should be observable in future measurements of this process at the LHC.
出处
《高能物理与核物理》
CSCD
北大核心
2006年第6期507-512,共6页
High Energy Physics and Nuclear Physics
关键词
超对称QCD
残留效应
截面
SUSY QCD, residual effects, cross section
