Dark matter, proton decay and other phenomenological constraints in F-SU(5)

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	Dark matter, proton decay and other phenomenological constraints in F-SU(5)
	Li, TJ
刊名	NUCLEAR PHYSICS B
	2011
卷号	848 期号:2 页码:314-331
关键词	PROBE WMAP OBSERVATIONS X U(1)(X) MODELS GRAND UNIFICATION F-THEORY BROKEN SUPERGRAVITY SYMMETRY-BREAKING FLIPPING SU(5) GENERIC MODEL RELIC DENSITY SEARCH
ISSN号	0550-3213
通讯作者	Maxin, JA (reprint author), Texas A&M Univ, George P & Cynthia W Mitchell Inst Fundamental Ph, College Stn, TX 77843 USA.
英文摘要	We study gravity mediated supersymmetry breaking in F-SU(5) and its low-energy supersymmetric phenomenology. The gaugino masses are not unified at the traditional grand unification scale, but we nonetheless have the same one-loop gaugino mass relation at the electroweak scale as minimal supergravity (mSUGRA). We introduce parameters testable at the colliders to measure the small second loop deviation from the mSUGRA gaugino mass relation at the electroweak scale. In the minimal SU(5) model with gravity mediated supersymmetry breaking, we show that the deviations from the mSUGRA gaugino mass relations are within 5%. However, in F-SU(5), we predict the deviations from the mSUGRA gaugino mass relations to be larger due to the presence of vector-like particles, which can be tested at the colliders. We determine the viable parameter space that satisfies all the latest experimental constraints and find it is consistent with the CDMS II experiment. Further, we compute the cross-sections of neutralino annihilations into gamma-rays and compare to the first published Fermi-LAT measurement. Finally, the corresponding range of proton lifetime predictions is calculated and found to be within reach of the future Hyper-Kamiokande and DUSEL experiments. (C) 2011 Elsevier B.V. All rights reserved.
学科主题	Physics
收录类别	SCI
资助信息	DOE [DE-FG03-95-Er-40917]; Natural Science Foundation of China [10821504]; Mitchell-Heep Chair in High Energy Physics
原文出处	http://dx.doi.org/10.1016/j.nuclphysb.2011.02.021
语种	英语
WOS记录号	WOS:000290423300005
公开日期	2013-05-17
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/14320]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Li, TJ. Dark matter, proton decay and other phenomenological constraints in F-SU(5)[J]. NUCLEAR PHYSICS B,2011,848(2):314-331.
APA	Li, TJ.(2011).Dark matter, proton decay and other phenomenological constraints in F-SU(5).NUCLEAR PHYSICS B,848(2),314-331.
MLA	Li, TJ."Dark matter, proton decay and other phenomenological constraints in F-SU(5)".NUCLEAR PHYSICS B 848.2(2011):314-331.