Questions tagged [mssm]
MSSM stands for the Minimal Supersymmetric Standard Model.
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F-theory questions on MSSM vs. SM compatibility and on de Sitter vacua
Having read https://arxiv.org/abs/2112.03947, https://arxiv.org/abs/1903.00009 and https://arxiv.org/abs/1903.00009, I noted the use of MSSM (Minimal Supersymmetric Standard Model) as if equivalent to ...
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Why are explicit mass terms allowed for sfermions like higgsinos and gauginos in the MSSM Lagranian if explicit fermionic mass terms are prohibited?
In Martin's SUSY Primer, he claims:
For the higgsinos and gauginos, [the ability to have a mass term]
follows from the fact that they are fermions in a real representation
of the gauge group.
As I ...
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Electron as Superpartner of Higgs!
Can we identify Higgs as a superpartner of the electron in a massless case? We know, superpartners have the same mass so of course, we can't and one argument we can make there are two Higgs doublets ...
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Degrees of freedom in the early universe with MSSM?
As nicely summarized on P4 in On effective degrees of freedom in the early universe here; at high temperatures where all the particles of the Standard Model are present, we have 28 bosonic and 90 ...
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How does SUSY differ from just having standard model (SM) particles in new Lorentz Group representations?
Under the standard model (SM), it is the irreducible representations of the Lorentz group which allows us to classify particles according to their spin. We can then further label particles using the ...
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Why is there no $H_1H_1\bar{e}^c$ term in the most general renormalisable superpotential?
I am these notes by Jeff Asaf Dror on Supersymmetry. In the section on the MSSM, it is stated that the most general renormalisable superpotential is given by
$$W=y_1QH_2\bar{u}^c+y_2QH_1\bar{d}^c+...
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Why are the particles identified that way in the MSSM?
In the MSSM the known fermions are the h=1/2 part of a h=0, h=1/2 multiplet. The gauge bosons are the h=1 part of a h=1, h=1/2 multiplet.
Why is it this way round? Why are the fermions not part ...
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How does the MSSM pseudo-scalar heavy Higgs undergo the decay process A -> Z h?
As A is a pseudo-scalar, Z an axial vector and h being a scalar, it looks like the spins are not balanced on both sides. Is it related to the longitudinal mode of Z boson?
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Running chargino/neutralino masses in MSSM
Consider the plot below, showing the running of different masses due to renormalization for a certain point of the (c)MSSM. I am able to exactly reproduce the plot, including the running of M1, M2, M3....
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Minimal supersymmetric Standard Model Supersymmetry Breaking
I'm working through Srednicki's QFT book.
I'm at Chapter 96 where he covers the Minimal Supersymmetric Standard Model.
I understand that supersymmetry is not an exact symmetry and I understand that ...
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What is the difference between supersymmetry and MSSM?
What is the difference between supersymmetry and MSSM? Please explain in a simple language i am just a beginner of supersymmetry
