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arXiv 0907.1498hep-ph
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带电希格斯粒子搜索的截面和分支比

Cross-sections and branching ratios for charged Higgs searches

Andre Sopczak

摘要:

为了准备在大型强子对撞机上进行带电希格斯玻色子的实验研究,我们进行了详细的研究,以确定在sqrts = 14 TeV处预期的带电希格斯玻色子产生截面和衰变分支比。在t夸克质量以下的质量区域,利用PYTHIA和FeynHiggs程序包,基于t衰变到H^+b,讨论了预期的产生截面。对于更高质量的次领先级(NLO计算已被使用,并特别注意中等质量区域。用FeynHiggs和HDecay程序包研究了衰变分支比。MSSM中的高阶校正(Delta_b校正)始终被考虑在内。考虑了两种基准情景,其中之一是“mhmax”。

英文摘要:

For the preparation of the experimental search for charged Higgs bosons at the LHC detailed studies have been made to determine the expected charged Higgs boson production cross-sections and decay branching ratios at sqrts = 14 TeV. In the mass regime below the t-quark mass the expected production cross-sections are discussed using PYTHIA and FeynHiggs program packages based on the decay t to H^+b. For higher masses Next-to-Leading-Order (NLO calculations have been used, and particular attention has been given to the intermediate-mass region. The decay branching ratios have been studied with the program packages FeynHiggs and HDecay. Higher-order corrections (Delta_b corrections) in the MSSM are consistently taken into account. Two benchmark scenarios are considered, one of them the `mhmax'.

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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