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.
机构:
Zewail City Sci & Technol, Ctr Fundamental Phys, 6 October City, Giza 6, Egypt
Uludag Univ, Dept Phys, TR-16059 Bursa, TurkeyAbdelmalek Essaadi Univ, Fac Sci & Tech, BP 416, Tangier, Morocco
机构:
Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
Univ Tokyo, Kavli Inst Phys & Math Universe Kavli IPMU, Chiba 2778583, JapanUniv Tokyo, Dept Phys, Tokyo 1130033, Japan
Endo, Motoi
Hamaguchi, Koichi
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机构:
Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
Univ Tokyo, Kavli Inst Phys & Math Universe Kavli IPMU, Chiba 2778583, JapanUniv Tokyo, Dept Phys, Tokyo 1130033, Japan
Hamaguchi, Koichi
Ishikawa, Kazuya
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机构:
Univ Tokyo, Dept Phys, Tokyo 1130033, JapanUniv Tokyo, Dept Phys, Tokyo 1130033, Japan
Ishikawa, Kazuya
Iwamoto, Sho
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机构:
Univ Tokyo, Dept Phys, Tokyo 1130033, JapanUniv Tokyo, Dept Phys, Tokyo 1130033, Japan
Iwamoto, Sho
Yokozaki, Norimi
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h-index: 0
机构:
Univ Tokyo, Kavli Inst Phys & Math Universe Kavli IPMU, Chiba 2778583, JapanUniv Tokyo, Dept Phys, Tokyo 1130033, Japan