Effective field theory analysis of Higgs naturalness
نویسندگان
چکیده
منابع مشابه
Bounding the Higgs Width Using Effective Field Theory ∗
An interesting question is how present and future experiments will be able to probe the couplings of the Higgs boson and its intrinsic width at a high level of precision. There is a wide variety of beyond the Standard Model (BSM) theories where the Higgs couplings differ from the Standard Model (SM) ones by less that 10%. We take the SM as the theory of “light” degrees of freedom, i.e. d = 4 op...
متن کاملOn the exotic Higgs decays in effective field theory
We discuss exotic Higgs decays in an effective field theory where the Standard Model is extended by dimension-6 operators. We review and update the status of two-body lepton- and quark-flavor-violating decays involving the Higgs boson. We also comment on the possibility of observing three-body flavor-violating Higgs decays in this context.
متن کاملNaturalness of Asymptotically Safe Higgs
We extend the list of theories featuring a rigorous interacting ultraviolet fixed point by constructing the first theory featuring a Higgs-like scalar with gauge, Yukawa and quartic interactions. We show that the theory enters a perturbative asymptotically safe regime at energies above a physical scale 3. We determine the salient properties of the theory and use it as a concrete example to test...
متن کاملImplications of naturalness in effective field theory on the masses of resonances.
Many years ago Weinberg formulated a definition of “naturalness” for effective theories: if an effective theory is to make sense, coefficients must not change too much when the cutoff scale is changed by a factor of order 1. As an example, we consider simple field theories in which an O(N) symmetry spontaneously breaks to O(N − 1). We show that in these theories Weinberg’s criterion for a natur...
متن کاملImproved Higgs Naturalness with Supersymmetry
We present a supersymmetric model of electroweak symmetry-breaking exhibiting improved naturalness, wherein the stop mass can be pushed beyond the reach of the Large Hadron Collider without unnatural fine tuning. This implies that supersymmetry may still solve the hierarchy problem, even if it eludes detection at the LHC. CONSTRAINTS ON THE SCALE OF NEW PHYSICS The standard model (SM) of partic...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2015
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.92.015018