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arXiv 1107.0621hep-ph
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味物理、超对称性和大统一

Flavour physics, supersymmetry and grand unification

Ulrich Nierste

摘要:

夸克味物理数据的整体拟合不支持标准模型,标准偏差为3.6,并指出介子-反介子混合振幅中新的CP破坏物理。Tevatron数据要求一个新的Bs-Bs-bar混合阶段,Bd-Bd-bar混合中的新物理学阐明了由B(B-> tau nu)驱动的幺正三角形上的张力。在超对称GUT模型中,大的大气中微子混合角会影响b -> s跃迁.我提出了一个SO(10)GUT模型,它容纳了大的Bs-Bs-bar混合相,同时遵守所有其他的实验约束的最新分析结果。

英文摘要:

A global fit to quark flavour-physics data disfavours the Standard Model with 3.6 standard deviations and points towards new CP-violating physics in meson-antimeson mixing amplitudes. Tevatron data call for a new Bs-Bs-bar mixing phase and new physics in Bd-Bd-bar mixing alleviates the tension on the unitarity triangle driven by B(B-> tau nu). In supersymmetric GUT models the large atmospheric neutrino mixing angle can influence b -> s transitions. I present the results of a recent analysis in an SO(10) GUT model which accomodates the large Bs-Bs-bar mixing phase while simultaneously obeying all other experimental constraints.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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