Flavour violating squark and gluino decays

Flavour violating squark and gluino decays
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风味违反夸克和谷诺衰变

DOI:
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发表时间:
2009
期刊:
影响因子:
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通讯作者:
W. Porod
W. Porod
中科院分区:
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文献类型:
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作者:
T. Hurth;W. Porod

文献摘要

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我们考虑了在夸克质量矩阵中具有大的违反味道的条目的情景,重点关注第二代和第三代夸克之间的混合。这些条目控制着两者,一方面违反了低能观测到的味道,另一方面违反了夸克和胶子衰变。我们首先讨论了B工厂和Tevatron最近关于B介子的数据对参数空间的限制。然后,我们考虑了违反风味的夸克和胶子衰变,并表明,尽管受到低能量数据的严格限制,它们通常仍然可以达到10%的数量级。最后,我们简要地评论了未来对撞机实验中搜索和参数确定的影响,例如即将到来的大型强子对撞机或未来的国际直线对撞机。
We consider scenarios with large flavour violating entries in the squark mass matrices focusing on the mixing between second and third generation squarks. These entries govern both, flavour violating low energy observables on the one hand and squark and gluino decays on the other hand. We first discuss the constraints on the parameter space due to the recent data on B mesons from the B factories and Tevatron. We then consider flavour violating squark and gluino decays and show that they can still be typically of order 10% despite the stringent constraints from low energy data. Finally we briefly comment on the impact for searches and parameter determinations at future collider experiments such as the upcoming LHC or a future International Linear Collider.