arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0906.1652hep-ph
收藏

荷电希格斯玻色子耦合在LHC和B工厂的普适性检验

Universality test of the charged Higgs boson couplings at the LHC and at B factories

Alan S. Cornell, Aldo Deandrea, Naveen Gaur, Hideo Itoh, Michael Klasen, Yasuhiro Okada

摘要:

粒子物理学的标准模型的许多扩展都预言了带电的希格斯玻色子玻色子的存在,它们与标准模型粒子有很强的耦合,这使得它们可以在大型强子对撞机上直接观测到,也可以在B工厂上间接观测到。例如,在两个II型希格斯偶态模型中,带电的希格斯玻色子玻色子与费米子的耦合与两个希格斯偶态真空期望值(tan(beta))和费米子质量因子的比值成比例,因此在大tan(beta)和/或重费米子中可能是实质性的。在这项工作中,我们进行了一个独立的模型研究的收费希格斯玻色子耦合在大型强子对撞机和B-工厂的大值tan(β)。我们已经证明,在高光度下,测量带电的希格斯玻色子玻色子与第三代夸克的耦合是可能的,精确度可达10%。我们进一步认为,通过结合LHC和B工厂的可能测量,有可能对带电希格斯玻色子与夸克的耦合进行普适性检验。

英文摘要:

Many extensions of the Standard Model (SM) of particle physics predict the existence of charged Higgs bosons with substantial couplings to SM particles, which would render them observable both directly at the LHC and indirectly at B-factories. For example, the charged Higgs boson couplings to fermions in two doublet Higgs models of type II, are proportional to the ratio of the two Higgs doublet vacuum expectation values (tan(beta)) and fermionic mass factors and could thus be substantial at large tan(beta) and/or for heavy fermions. In this work we perform a model-independent study of the charged Higgs boson couplings at the LHC and at B-factories for large values of tan(beta). We have shown that at high luminosity it is possible to measure the couplings of a charged Higgs boson to the third generation of quarks up to an accuracy of 10%. We further argue that by combining the possible measurements of the LHC and the B-factories, it is possible to perform a universality test of charged Higgs boson couplings to quarks.

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。

↑