中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Higgs decay to goldstini and its observability at the LHC

文献类型:期刊论文

作者Yang, JM
刊名PHYSICS LETTERS B
出版日期2013
卷号726期号:1-3页码:228-233
关键词BOSON COLLISIONS GRAVITINO PHOTON MASS
ISSN号0370-2693
通讯作者Yang, JM (reprint author), Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
英文摘要If supersymmetry is broken independently in multiple sectors with different scales, a number of goldstinos will be generated. One linear combination of these goldstinos is massless and eaten by the gravitino, while the orthogonal combinations acquire a tree-level mass and become the physical states named goldstini (G'). Compared to the gravitino, such goldstini could couple more strongly to the visible fields and lead to some exotic phenomenology. In this note we first check the goldstini couplings in some GMSB models and find that the goldstini-photon-neutralino interaction may be very small while the goldstini-Z-neutralino and goldstini-Higgs-neutralino interactions may be sizable. This can induce a new decay mode for the Higgs boson: h -> G' + chi -> Z + 2G'. Then in an effective model with conservative fixed parameters we study the observability of this decay channel at the LHC and find that it is not accessible at the finished 8 TeV run (25 fb(-1)) or 14 TeV run with 100 fb(-1), but might be observed at the high luminosity LHC (14 TeV, 1000-3000 fb(-1)) if the systematics of the backgrounds can be well understood. (C) 2013 Elsevier B.V. All rights reserved.
学科主题Physics
收录类别SCI
资助信息DFG [SFB/TR 9]; National Natural Science Foundation of China [11275245, 10821504, 11135003]
原文出处http://dx.doi.org/10.1016/j.physletb.2013.08.001
语种英语
WOS记录号WOS:000326482200027
公开日期2014-04-25
源URL[http://ir.itp.ac.cn/handle/311006/15270]  
专题理论物理研究所_理论物理所1978-2010年知识产出
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GB/T 7714
Yang, JM. Higgs decay to goldstini and its observability at the LHC[J]. PHYSICS LETTERS B,2013,726(1-3):228-233.
APA Yang, JM.(2013).Higgs decay to goldstini and its observability at the LHC.PHYSICS LETTERS B,726(1-3),228-233.
MLA Yang, JM."Higgs decay to goldstini and its observability at the LHC".PHYSICS LETTERS B 726.1-3(2013):228-233.

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来源:理论物理研究所

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