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arXiv 1301.4690hep-ex
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来自CMS的重口味结果

Heavy-Flavor Results from CMS

Keith Ulmer

摘要:

重口味物理学提供了通过精确测量对标准模型之外的物理学进行间接测试的机会,以及通过粒子产生研究对量子色动力学(QCD)进行间接测试的机会。罕见的衰变B0 s,B0和D0的dimuon的最终状态是很好的测试的味道部门的标准模型,是敏感的新物理。我们报道了这些衰变的研究,并首次观测到了激发态b重子Xib*0在强衰变到Xib和a带电π介子中的存在,两种Bc介子衰变模式的观测以及λ_b重子的产生特性,所有这些都是在sqrt(s)= 7TeV的pp碰撞中用CMS实验完成的。

英文摘要:

Heavy-flavor physics offers the opportunity to make indirect tests of physics beyond the Standard Model through precision measurements, and of quantum chromodynamics (QCD) through particle production studies. The rare decays B0s, B0 and D0 to dimuon final states are excellent tests of the flavor sector of the Standard Model and are sensitive to new physics. We report on studies of these decays and present the first observation of the excited b baryon Xib*0 in strong decays to Xib and a charged pion, the observation of two Bc meson decay modes and production properties of the Lambda_b baryon, all performed with the CMS experiment in pp collisions at sqrt(s) = 7 TeV.

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