流出
发表于 2025-3-30 10:01:58
Phenomenology of Supersymmetric Models,there exists a successful (at low energies) model of electro-weak and strong interactions—the standard SU(2). × U(1). × SU(3). model. The recent discovery of .- and Z-bosons at the CERN . machine has proved the correctness of this theory. Also, everybody believes that there is more physics beyond th
nocturnal
发表于 2025-3-30 12:36:54
Supersymmetric Grand Unification,rand unification program. As has been emphasized in Chapter 5, the tree level parameters must be fine tuned to an accuracy of 10. or so, to generate the mass ratio ../.. ≃ 10. in the SU(5) model. In other models, due to the presence to intermediate mass scales, the problem of fine tuning is not as s
sundowning
发表于 2025-3-30 19:09:00
Local Supersymmetry (, = 1),, i.e., .). We know, from Chapter 1, that invariance under local symmetry requires new fields in the theory which have spin 1, and have the same number of components as the number of independent parameters in the group. In analogy, local supersymmetry will require the introduction of the spin 3/2 fi
小步舞
发表于 2025-3-30 23:55:03
Application of Supergravity (, = 1) to Particle Physics,discussion we note that the general action that couples supergravity (. = 1) to the Yang-Mills matter field system can be written as follows: . where . and . denote the matter and gauge fields, respectively, and . and . denote the generalized .- and .-terms invariant under local supersymmetry transf
黑豹
发表于 2025-3-31 02:56:32
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PSA-velocity
发表于 2025-3-31 05:23:46
Field Theories with Global Supersymmetry,ral, will) belong to some irreducible representations of compact internal symmetry groups (local or global). Before going on to the discussion of the most general case, we first consider the simple case of a matter field O and illustrate how we can write a general interacting field theory for this.
骗子
发表于 2025-3-31 13:15:54
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investigate
发表于 2025-3-31 15:52:17
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