ITP OpenIR  > 理论物理所科研产出  > SCI论文
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.
Higgs decay to goldstini and its observability at the LHC
Source PublicationPHYSICS LETTERS B
Language英语
KeywordBoson Collisions Gravitino Photon Mass
AbstractIf 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.
2013
ISSN0370-2693
Volume726Issue:1-3Pages:228-233
Subject AreaPhysics
Indexed BySCI
Funding OrganizationDFG [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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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15270
Collection理论物理所科研产出_SCI论文
Corresponding AuthorYang, JM (reprint author), Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
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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