Fermiophobia in a Higgs triplet model

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题名:	Fermiophobia in a Higgs triplet model
作者:	Akeroyd,AG;Diaz,MA;Rivera,MA;Maltrana,DR
贡献者:	物理學系
关键词:	DOUBLY-CHARGED HIGGS;NEUTRINO MASSES;LEPTON NUMBER;FERMILAB TEVATRON;BOSONS;SIGNATURES;VIOLATION;BREAKING;MIXINGS;DECAY
日期:	2011
上传时间:	2012-06-11 10:48:54 (UTC+8)
出版者:	國立中央大學
摘要:	A fermiophobic Higgs boson can arise in models with an extended Higgs sector, such as models with scalars in an isospin triplet representation. In a specific model with a scalar triplet and spontaneous violation of lepton number induced by a scalar singlet field, we show that fermiophobia is not a fine-tuned situation, unlike in two higgs doublet models. We study distinctive signals of fermiophobia which can be probed at the LHC. For the case of a small Higgs mass, a characteristic signal would be a moderate B(H -> gamma gamma) accompanied by a large B(H -> JJ) (where J is a Majoron), the latter being an invisible decay. For the case of a large Higgs mass there is the possibility of dominant H -> JJ, WW and suppressed H -> JJ decay modes. In this situation, B(H -> ZZ) is larger than B(H -> WW), which differs from the SM prediction.
關聯:	PHYSICAL REVIEW D
显示于类别:	[物理學系] 期刊論文

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