Asymptotic safety in the conformal hidden sector?

作者：Wang Zhi Wei^*; Sage Frederick S; Steele T G; Mann R B

来源：Journal of Physics G: Nuclear and Particle Physics , 2018, 45(9): 095002.

DOI：10.1088/1361-6471/aad2c7

• asymptotic safety
• Coleman-Weinberg mechanism
• beyond the Standard model hidden sector
• U(1)' model

We combine the notion of asymptotic safety (AS) with conformal invariance in a hidden sector beyond the Standard Model. We use the renormalization group equations as a bridge to connect UV boundary conditions and EW/TeV scale physics and furnish a detailed example in the context of a leptophobic U(1)' model. A broad selection of UV boundary conditions are formulated corresponding to differing AS scenarios, and we find an AS scenario with very strong predictive power, allowing unique determination of most of the parameters in the model. We obtain the interrelationships among the couplings, the transition scale of the fixed point M-UV and the generations of quarks coupled to the Z', and especially the correlation between MUV and the top quark Yukawa coupling Y-t. Several phenomenological implications of our results are presented for selected Z' masses.

• 出版日期2018-9
• 单位Saskatchewan; Saskatoon