ITP OpenIR  > 理论物理所2016年知识产出
Patterns of strong coupling for LHC searches
Liu, D; Pomarol, A; Rattazzi, R; Riva, F; Liu, D (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing, Peoples R China.; Liu, D (reprint author), Ecole Polytech Fed Lausanne, Inst Phys, Theoret Particle Phys Lab, CH-1015 Lausanne, Switzerland.
2016
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号11页码:141
文章类型Article
摘要Even though the Standard Model (SM) is weakly coupled at the Fermi scale, a new strong dynamics involving its degrees of freedom may conceivably lurk at slightly higher energies, in the multi TeV range. Approximate symmetries provide a structurally robust context where, within the low energy description, the dimensionless SM couplings are weak, while the new strong dynamics manifests itself exclusively through higher- derivative interactions. We present an exhaustive classification of such scenarios in the form of effective field theories, paying special attention to new classes of models where the strong dynamics involves, along with the Higgs boson, the SM gauge bosons and/or the fermions. The IR softness of the new dynamics suppresses its effects at LEP energies, but deviations are in principle detectable at the LHC, even at energies below the threshold for production of new states. We believe our construction provides the so far unique structurally robust context where to motivate several LHC searches in Higgs physics, diboson production, or W W scattering. Perhaps surprisingly, the interplay between weak coupling, strong coupling and derivatives, which is controlled by symmetries, can override the naive expansion in operator dimension, providing instances where dimension-8 dominates dimension-6, well within the domain of validity of the low energy effective theory. This result reveals the limitations of an analysis that is both ambitiously general and restricted to dimension-6 operators.
关键词Beyond Standard Model Effective Field Theories Global Symmetries Technicolor And Composite Models
学科领域Physics
DOIhttp://dx.doi.org/10.1007/JHEP11(2016)141
关键词[WOS]ELECTROWEAK SYMMETRY-BREAKING ; COMPOSITE HIGGS-MODEL ; PHENOMENOLOGICAL LAGRANGIANS ; VACUUM MISALIGNMENT ; FIELD-THEORIES ; SUPERSYMMETRY ; CONSTRAINT ; SECTOR ; FLAVOR ; QUARKS
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21478
专题理论物理所2016年知识产出
通讯作者Liu, D (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing, Peoples R China.; Liu, D (reprint author), Ecole Polytech Fed Lausanne, Inst Phys, Theoret Particle Phys Lab, CH-1015 Lausanne, Switzerland.
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Liu, D,Pomarol, A,Rattazzi, R,et al. Patterns of strong coupling for LHC searches[J]. JOURNAL OF HIGH ENERGY PHYSICS,2016(11):141.
APA Liu, D,Pomarol, A,Rattazzi, R,Riva, F,Liu, D ,&Liu, D .(2016).Patterns of strong coupling for LHC searches.JOURNAL OF HIGH ENERGY PHYSICS(11),141.
MLA Liu, D,et al."Patterns of strong coupling for LHC searches".JOURNAL OF HIGH ENERGY PHYSICS .11(2016):141.
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