LHC signatures of warped-space vectorlike quarks

被引:41
|
作者
Gopalakrishna, Shrihari [1 ]
Mandal, Tanumoy [1 ]
Mitra, Subhadip [2 ]
Moreau, Gregory [2 ]
机构
[1] Inst Math Sci IMSc, Madras 600113, Tamil Nadu, India
[2] Univ Paris 11, CNRS, UMR 8627, Phys Theor Lab, F-91405 Orsay, France
来源
关键词
Phenomenology of Field Theories in Higher Dimensions; Hadronic Colliders; HIGGS PRODUCTION; HIERARCHY; FERMION; BOSONS; MODEL;
D O I
10.1007/JHEP08(2014)079
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We study the LHC signatures of TeV scale vectorlike quarks b', t' and chi with electromagnetic charges -1/3, 2/3 and 5/3 that appear in many beyond the standard model (BSM) extensions. We consider warped extra-dimensional models and analyze the phenomenology of such vectorlike quarks that are the custodial partners of third generation quarks. In addition to the usually studied pair-production channels which depend on the strong coupling, we put equal emphasis on single production channels that depend on electroweak couplings and on electroweak symmetry breaking induced mixing effects between the heavy vectorlike quarks and standard model quarks. We identify new promising gg-initiated pair and single production channels and find the luminosity required for discovering these states at the LHC. For these channels, we propose a cut that allows one to extract the relevant electroweak couplings. Although the motivation is from warped models, we present many of our results model-independently.
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收藏
页数:44
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