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arXiv 1012.2748hep-phhep-ex
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Tevatron上超对称Higgs扇区的约束条件

Revisiting the constraints on the Supersymmetric Higgs sector at the Tevatron

Julien Baglio, Abdelhak Djouadi

摘要:

我们分析了标准模型的最小超对称扩展在费米实验室Tevatron对撞机上的中性Higgs粒子的产生。我们考虑两个主要的生产和检测渠道:胶子-胶子和底夸克融合导致希格斯玻色子,随后衰变成τ轻子,$gg, b\bar b \to {\rm Higgs} \to τ^+τ^-$。我们更新的生产截面和衰变分支比,并获得生产率显着小于在高质量的CDF和D 0实验中使用的搜索。然后,我们评估的各种理论的不确定性,影响这些利率,不确定性,没有被认为是在实验分析,结果是相当大的。包括这两种效应将大大放松在Tevatron上对超对称希格斯扇区的约束。

英文摘要:

We analyze the production of the neutral Higgs particles of the Minimal Supersymmetric extension of the Standard Model at the Fermilab Tevatron collider. We consider the two main production and detection channels: gluon--gluon and bottom quark fusion leading to Higgs bosons which subsequently decay into tau leptons, $gg, b\bar b \to {\rm Higgs} \to τ^+τ^-$. We update the production cross sections and the decay branching ratios and obtain production rates that are significantly smaller at high masses than the ones used by the CDF and D0 experiments in their search. We then evaluate the various theoretical uncertainties that affect these rates, uncertainties that have not been been considered in the experimental analyses and which turn out to be rather large. Including these two effects will significantly loosen the constraints obtained on the supersymmetric Higgs sector at the Tevatron.

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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