Hefty MSSM-like light Higgs in extended gauge models

被引：39
作者：
Hirsch, M. [1 ]
Malinsky, M. [1 ]
Porod, W. [1 ]
Reichert, L. [1 ,2 ]
Staub, F. [2 ,3 ]
机构：
[1] Univ Valencia, CSIC, Inst Fis Corpuscular, AHEP Grp, E-46071 Valencia, Spain
[2] Univ Wurzburg, Inst Theoret Phys & Astron, D-97074 Wurzburg, Germany
[3] Univ Bonn, Inst Phys, D-53115 Bonn, Germany
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2012年 / 02期
关键词：
Supersymmetry Phenomenology; BOSON MASSES; RADIATIVE-CORRECTIONS; NEUTRINO MASSES; RENORMALIZATION; PREDICTIONS; BREAKING; BARYON; LEP;
D O I：
10.1007/JHEP02(2012)084
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
It is well known that in the MSSM the lightest neutral Higgs h(0) must be, at the tree level, lighter than the Z boson and that the loop corrections shift this stringent upper bound up to about 130GeV. Extending the MSSM gauge group in a suitable way, the new Higgs sector dynamics can push the tree-level mass of h(0) well above the tree-level MSSM limit if it couples to the new gauge sector. This effect is further pronounced at the loop level and h(0) masses in the 140GeV ballpark can be reached easily. We exemplify this for a sample setting with a low-scale U(1)(R) x U(1)(B-L) gauge symmetry in which neutrino masses can be implemented via the inverse seesaw mechanism.
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页数：14
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