Results 21 to 30 of about 119,582 (346)
Model building by coset space dimensional reduction scheme using eight-dimensional coset spaces
We investigate the twelve-dimensional gauge-Higgs unification models with an eight- dimensional coset space as the extra space. For each model, we apply the coset space dimensional reduction procedure and examine the particle contents of the resulting ...
Kento Asai +4 more
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The grand unified theory [PDF]
We provide a detailed account of the successful 5,000-year-old search for the superstring, basic constituent of matter, capped by its capture in 1997, and highlights what particle physics have accomplished as a vital link in the capture of the superstring.
openaire +1 more source
Mass-splitting between haves and have-nots — symmetry vs. Grand Unified Theory [PDF]
A bstractWe revisit the long-standing problem of supersymmetric grand unified theory (GUT), the doublet-triplet splitting problem. We discuss whether symmetry which controls the μ term in the minimal supersymmetric standard model is compatible with GUT ...
K. Harigaya, M. Ibe, Motoo Suzuki
semanticscholar +1 more source
Liberating methodological thinking in human sciences from grand theories
Many humanistic and social disciplines are naturally inclined to seek for human-, person-, self- centered focus, and develop a holistic theory of such. Such disciplines continually engage with philosophical, metaphysical and meta-theoretical perspectives.
Nikita A. Kharlamov +1 more
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331 models and grand unification: From minimal SU(5) to minimal SU(6)
We consider the possibility of grand unification of the SU(3)c⊗SU(3)L⊗U(1)X model in an SU(6) gauge unification group. Two possibilities arise. Unlike other conventional grand unified theories, in SU(6) one can embed the 331 model as a subgroup such that
Frank F. Deppisch +4 more
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GUT and Flavor Models for Neutrino Masses and Mixing
In the recent years neutrino experiments have studied in detail the phenomenon of neutrino oscillations and most of the oscillation parameters have been measured with a good accuracy.
Davide Meloni
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FINITE GRAND UNIFIED THEORIES AND INFLATION [PDF]
A class of finite GUT's in curved space–time is considered in connection with the cosmological inflation scenario. It is confirmed that the use of the running scalar-gravitational coupling constant in these models helps realizing a successful chaotic inflation. The analyses are made for some different sets of the models.
Mukaigawa, S. +2 more
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Dark monopoles in Grand Unified Theories [PDF]
AbstractWe consider a Yang-Mills-Higgs theory with gauge groupG= SU(n) broken toGv= [SU(p) × SU(n−p) × U(1)]/Zby a Higgs field in the adjoint representation. We obtain monopole solutions whose magnetic field is not in the Cartan Subalgebra. Since their magnetic field vanishes in the direction of the generator of the U(1)emelectromagnetic group, we call
Maria de Lourdes Z. P. Deglmann +1 more
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Gaugino mass nonuniversality in an SO(10) supersymmetric grand unified theory: Low-energy spectra and collider signals [PDF]
We derive the nonuniversal gaugino mass ratios in a supergravity (SUGRA) framework where the Higgs superfields belong to the nonsinglet representations 54 and 770 in an SO(10) grand unified theory (GUT).
S. Bhattacharya, J. Chakrabortty
semanticscholar +1 more source
Phases of confining SU(5) chiral gauge theory with three generations
We explore the possible low energy phases of the confining non-supersymmetric SU(5) chiral gauge theory with three generations of fermions in the (10+ 5 ¯ $$ \overline{5} $$ ) representations.
Yang Bai, Daniel Stolarski
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