Supersymmetric gauge theory: an application of group theory in high energy physics and starobinsky model of cosmological ination
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Date
2016Publisher
BRAC UniversityAuthor
Upoma, Ipshita BonhiMetadata
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This thesis discusses the general role of symmetry in high-energy physics. It concentrates
on the role of fermionic symmetry generators, which generate the symmetry known as
supersymmetry. An extensive discussion of spinors in D-dimensions is given and the
necessity of spinors is explained from a group theoretical point of view. The supersymmetric
transformation rules of the elds are explained and Lagrangians for simple theories are
explained. We generalize to SU(n) gauge theories and give a discussion of con nement
in supersymmetric gauge theories. We also apply supersymmetry in the Starobinsky model
of cosmological in
ation by constructing a NSWZ model equivalent to the R2 Starobinsky
model. A parametrically quadratic function, x(t) providing favourable conditions for in
ation
is found for eld, x in terms of a string modulus, t.