ITP OpenIR  > 理论物理所2013年知识产出
Higgs decay to goldstini and its observability at the LHC
Liu, T; Wang, L; Yang, JM; Yang, JM (reprint author), Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2013
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号726期号:1-3页码:228-233
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.
部门归属[Liu, Tao; Wang, Lin] Karlsruhe Inst Technol, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany; [Yang, Jin Min] Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
关键词Boson Collisions Gravitino Photon Mass
学科领域Physics
资助者DFG [SFB/TR 9]; National Natural Science Foundation of China [11275245, 10821504, 11135003] ; DFG [SFB/TR 9]; National Natural Science Foundation of China [11275245, 10821504, 11135003] ; DFG [SFB/TR 9]; National Natural Science Foundation of China [11275245, 10821504, 11135003] ; DFG [SFB/TR 9]; National Natural Science Foundation of China [11275245, 10821504, 11135003]
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收录类别SCI
语种英语
资助者DFG [SFB/TR 9]; National Natural Science Foundation of China [11275245, 10821504, 11135003] ; DFG [SFB/TR 9]; National Natural Science Foundation of China [11275245, 10821504, 11135003] ; DFG [SFB/TR 9]; National Natural Science Foundation of China [11275245, 10821504, 11135003] ; DFG [SFB/TR 9]; National Natural Science Foundation of China [11275245, 10821504, 11135003]
WOS记录号WOS:000326482200027
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被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15270
专题理论物理所2013年知识产出
通讯作者Yang, JM (reprint author), Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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GB/T 7714
Liu, T,Wang, L,Yang, JM,et al. Higgs decay to goldstini and its observability at the LHC[J]. PHYSICS LETTERS B,2013,726(1-3):228-233.
APA Liu, T,Wang, L,Yang, JM,&Yang, JM .(2013).Higgs decay to goldstini and its observability at the LHC.PHYSICS LETTERS B,726(1-3),228-233.
MLA Liu, T,et al."Higgs decay to goldstini and its observability at the LHC".PHYSICS LETTERS B 726.1-3(2013):228-233.
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