The second Kaluza-Klein mode of CP-odd neutral Higgs boson in the minimal universal extra dimension model

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• 作者：Sanghyeon Chang ^{sang.chang@gmail.com} ; Kang Young Lee ; ^{kylee14214@gmail.com} ; Jeonghyeon Song ^{jhsong@konkuk.ac.kr}
• 刊名：Physics Letters B
• 出版年：2012
• 出版时间：14 February 2012
• 年：2012
• 卷：708
• 期：1-2
• 页码：144-149
• 全文大小：229 K

文摘

Loop-induced decays of a neutral standard model (SM) Higgs boson into a pair of gluons or photons are very suppressed if the Higgs boson is heavy (). In the minimal universal extra dimension model, these radiative decays can be significant for the second Kaluza-Klein (KK) mode of the CP-odd Higgs boson, . We find that the CP-even KK Higgs boson has vanishing decay rate of at one-loop level: the production at the LHC is very suppressed. On the contrary, the process in an optimal scenario can be observed with manageable SM backgrounds at the LHC.