Wu, YL (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Kavli Inst Theoret Phys China, Inst Theoret Phys, Beijing 100190, Peoples R China.
Based on two postulations that (i) the Higgs boson has a large bare mass mH >> m(h) similar or equal to 125 GeV at the characteristic energy scale M-c which defines the Standard Model (SM) in the ultraviolet region, and (ii) quadratic contributions of Feynman loop diagrams in quantum field theories are physically meaningful, we show that the SM electroweak symmetry breaking is induced by the quadratic contributions from loop effects. As the quadratic running of Higgs mass parameter leads to an additive renormalization, which distinguishes from the logarithmic running with a multiplicative renormalization, the symmetry breaking occurs once the sliding energy scale mu moves from M-c down to a transition scale mu = Lambda(EW) at which the additive renormalized Higgs mass parameter m(H)(2)(M-c/mu) gets to change the sign. With the input of current experimental data, this symmetry breaking energy scale is found to be Lambda(EW) similar or equal to 760 GeV, which provides another basic energy scale for the SM besides Mc. Studying such a symmetry breaking mechanism could play an important role in understanding both the hierarchy problem and naturalness problem. It also provides a possible way to explore the experimental implications of the quadratic contributions as Lambda(EW) lies within the probing reach of the LHC and the future Great Collider. (C) 2015 The Authors. Published by Elsevier B.V.
National Natural Science Foundation of China (NSFC) [10975170, 10905084, 10821504]
; Project of Knowledge Innovation Program (PKIP) of the Chinese Academy of Science
; CAS Center for Excellence in Particle Physics (CCEPP)