Some new symmetric relations of quark masses and prediction of fourth-generation quark masses

D. Atwood, S. K. Gupta, and A. Soni, Detecting fourth generation quarks at Hadron Colliders, J. High Energy Phys. 1206, 105 (2012), arXiv: 1104.3874 [hep-ph]

B. Holdom, W. S. Hou, T. Hurth, M. L. Mangano, S. Sultansoy, and G. Unel, Four statements about the fourth generation, PMC Phys. A3, 4 (2009), arXiv: 0904.4698 [hep-ph]

D. Fargion, Yu. A. Golubkov, M. Yu. Khlopov, R. V. Konoplich, and R. Mignani, Possible effects of the existence of the 4th Generation Neutrino, Pisma Zh. Eksp. Teor. Fiz. 69, 402 (1999); JETP Lett. 69, 434 (1999), arXiv: astro-ph/9903086

Y. Koide, fermion-boson composite model of quarks and leptons, Phys. Lett. B 120(1-3), 161 (1983)

Y. Koide, A new view of quark and lepton mass hierarchy, Phys. Rev. D 28, 252 (1983); Erratum: Phys. Rev. D 29, 1544 (1984)

K.A. Olive et al. (Particle Data Group), Review of Particle Physics, Chin. Phys. C 38 (2014) 090001

R. Foot, A note on Koide’s lepton mass relation, arXiv: hep-ph/9402242 (1994)

M. S. Chanowitz, Electroweak constraints on the Fourth Generation at two loop order, Phys. Rev. D 88, 015012 (2013), arXiv: 1212.3209 [hep-ph] (and references therein)

Z. Chacko, R. Franceschini, and R. K. Mishra, Resonance at 125 GeV: Higgs or dilaton/radion? J. High Energy Phys. 04, 015 (2013), arXiv: 1209.3259 [hep-ph]

J. Bulava, K. Jansen, and A. Nagy, Constraining a fourth generation of quarks: Non-perturbative Higgs boson mass bounds, Phys. Lett. B 723(1–3), 95 (2013), arXiv: 1301.3416 [hep-lat]

X. G. He and G. Valencia, An extended scalar sector to address the tension between a fourth generation and Higgs searches at the LHC, Phys. Lett. B 707, 381 (2012), arXiv: 1108.0222

S. Matsuzaki and K. Yamawaki, Techni-dilaton at 125 GeV, Phys. Rev. D 85, 095020 (2012), arXiv: 1201.4722 [hep-ph]