All Questions
Tagged with higgs fine-tuning
25
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The origin of the Hierarchy Problem
In the answer to this question on the origin of the hierarchy problem, it is stated that:
The low-energy parameters such as the LHC-measured Higgs mass 125 GeV are complicated functions of the more ...
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Perturbative calculation of hierarchy problem
I've been trying to understand the origin of the hierarchy problem for the Higgs mass but I've tied myself into some pretty nasty knots and I'm hoping someone can shed some light on this.
So as I see ...
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Is the Higgs VEV unnatural?
Is there some way to argue that the Higgs VEV is unnatural, without even bringing up the Higgs boson mass? For example, can one show that the Higgs vev receives large corrections from new physics? The ...
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The "survival hypothesis" and supersymmetry
Tidying up my old papers I came across my supersymmetry notes from the late 80s. I thought I'd reread them. They may be out of date now. I find the mathematics somewhat comprehensible but not the ...
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Can the low Higgs mass solve the problem of fine tuning of the Fermi constant?
The Standard Model indicates that quantum corrections to the Fermi constant make its value surprisingly large, and that its value could be closer to the Newtonian constant of gravitation unless there ...
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Yet another 'dimensional regularization vs. the Hierarchy Problem' one
My current point of view regarding the Hierarchy Problem is of agreement with Michael's answer in this question. Or, in the words of Manohar in his Introduction to EFT notes, using a cutoff regulator ...
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Is the hierarchy problem definitely a "problem"?
There have been a bunch of questions related to the hierarchy problem, but I still can't help but feel that an assumption is being made that is not backed by any example of correctness and is thus ...
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How SUSY solves the hierarchy problem?
I am struggling to understand the argument for why the introduction of a stop in SUSY can solve the hierarchy problem. The quadratic divergence from the top loop in the higgs mass calculation gives a ...
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Does Supersymmetry really assures that the Higgs self-energy contributions cancel out?
The well-known "Supersymmetry Primer" from Stephen Martin explains in his introduction that for the cancellation of the Higgs self-energy diagrams (Fig. 1.1 a + b)
generated by fermions and their ...
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How Supersymmetry solves the hierarchy problem
The fermion contribution to the Higgs mass is
$$\Delta m^2_{H}=-\frac{|\lambda_{f}|^2}{8\pi^2}\Lambda^2_{UV}+\dots$$
And the scalar contribution is:
$$\Delta m^2_{H}=\frac{\lambda_{s}}{16\pi^2}\...
- 1,571
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Why is the smallness of Higgs mass not technically natural?
Technical naturalness
The smallness of a parameter $\theta$ in the Lagrangian of a quantum field theory is said to be technically natural, if in the limit of vanishing $\theta$, the theory has some ...
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Hierarchy problems: calculating the mass of the Higgs vs. other SM particles
While reading up on hierarchy problems in particle physics (wikipedia), I stumbled onto the statement that in the Standard Model, there is no hierarchy problem (or at least it cannot be formulated) ...
- 708
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What happens to the massive gauge bosons in a simple Little Higgs model?
I'm trying to understand a simple Little Higgs (toy) model where the Higgs doublet is made of pseudo Nambu-Goldstone Bosons generated by breaking the symmetry from $SU(3)_L\times U(1)_Y$ to $SU(2)_L\...
- 1,373
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Hierarchy problem and loop quantum gravity
According to https://en.wikipedia.org/wiki/Hierarchy_problem#Finite_Groups.
Hierarchy problem can be theoretically solved using symmetry of certain bosonic string theory on the Leech lattice (though ...
- 3,043
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Would the existence of leptoquarks solve the hierarchy problem of the Higgs-boson?
Would the existence of leptoquarks solve the hierarchy problem of the Higgs-boson ? According to wikipedia these are assumed to be bosons which could contribute to the cancellation of the vacuum ...
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