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Cline, JM; Huang, WC; Moore, GD
Challenges for models with composite states
Source PublicationPHYSICAL REVIEW D
AbstractComposite states of electrically charged and QCD-colored hyperquarks (HQs) in a confining SU(N-HC) hypercolor gauge sector are a plausible extension of the standard model at the TeV scale and have been widely considered as an explanation for the tentative LHC diphoton excess. Additional new physics is required to avoid a stable charged hyperbaryon in such theories. We classify renormalizable models allowing the decay of this unwanted relic directly into standard model states, showing that they are significantly restricted if the new scalar states needed for UV completion are at the TeV scale. Alternatively, if hyperbaryon number is conserved, the charged relic can decay into a neutral hyperbaryon. Such theories are strongly constrained by direct detection, if the neutral constituent hyperquark carries color or weak isospin, and by LHC searches for leptoquarks if it is a color singlet. We show that the neutral hyperbaryon can have the observed relic abundance if the confinement scale and the hyperquark mass are above TeV scale, even in the absence of any hyperbaryon asymmetry.
Subject AreaAstronomy & Astrophysics ; Physics
Indexed BySCI
Funding OrganizationNational Science Foundation [PHY-1066293] ; Postgraduate Scholarship Program of China Scholarship Council [201504910563] ; NSERC (Natural Sciences and Engineering Research Council of Canada) ; FRQNT (Fonds de recherche du Quebec-Nature et technologies) ; Land Hessen
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Document Type期刊论文
Affiliation1.McGill Univ, Dept Phys, 3600 Rue Univ, Montreal, PQ H3A 2T8, Canada
2.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China
3.Moore, Guy D.] Tech Univ Darmstadt, Inst Kernphys, Schlossgartenstr 2, D-64289 Darmstadt, Germany
Recommended Citation
GB/T 7714
Cline, JM,Huang, WC,Moore, GD. Challenges for models with composite states[J]. PHYSICAL REVIEW D,2016,94(5):55029.
APA Cline, JM,Huang, WC,&Moore, GD.(2016).Challenges for models with composite states.PHYSICAL REVIEW D,94(5),55029.
MLA Cline, JM,et al."Challenges for models with composite states".PHYSICAL REVIEW D 94.5(2016):55029.
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