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arXiv 1208.6002hep-phhep-ex
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通往“希格斯”自旋和宇称的快车道

A Fast Track towards the `Higgs' Spin and Parity

John Ellis, Dae Sung Hwang, Veronica Sanz, Tevong You

摘要:

大型强子对撞机实验ATLAS和CMS发现了一种新的玻色子,它类似于长期寻找的希格斯玻色子:它不能有自旋1,并且与其他粒子的耦合随着它们的质量增加而增加,但自旋和宇称仍有待确定。我们在这里表明,在Tevatron或LHC的'Higgs'-strahlung事件中,'Higgs' +规范玻色子不变质量分布在J^P = 0+,0-和2+假设下将非常不同,并且可以提供'Higgs'自旋和宇称的快速跟踪指标。我们的分析是基于模拟的实验事件的选择和削减使用PYTHIA和Delphes,并纳入统计样本的“玩具”实验。

英文摘要:

The LHC experiments ATLAS and CMS have discovered a new boson that resembles the long-sought Higgs boson: it cannot have spin one, and has couplings to other particles that increase with their masses, but the spin and parity remain to be determined. We show here that the `Higgs' + gauge boson invariant-mass distribution in `Higgs'-strahlung events at the Tevatron or the LHC would be very different under the J^P = 0+, 0- and 2+ hypotheses, and could provide a fast-track indicator of the `Higgs' spin and parity. Our analysis is based on simulations of the experimental event selections and cuts using PYTHIA and Delphes, and incorporates statistical samples of `toy' experiments.

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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