Results 31 to 40 of about 1,542 (161)
Threshold corrections to baryon number violating operators in supersymmetric SU(5) GUTs
The nucleon decay is a significant phenomenon to verify grand unified theories (GUTs). For the precise prediction of the nucleon lifetime induced by the gauge bosons associated with the unified gauge group, it is important to include the renormalization ...
Junji Hisano +2 more
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The algebra of grand unified theories [PDF]
The Standard Model of particle physics may seem complicated and arbitrary, but it has hidden patterns that are revealed by the relationship between three "grand unified theories": theories that unify forces and particles by extending the Standard Model symmetry group U(1) x SU(2) x SU(3) to a larger group.
Baez, John, Huerta, John
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Grand-Unified-Theory Baryogenesis after Preheating [PDF]
At the end of inflation the Universe is frozen in a near zero-entropy state with energy density in a coherent scalar field and must be ``defrosted'' to produce the observed entropy and baryon number. We propose that the baryon asymmetry is generated by the decay of supermassive grand-unified-theory (GUT) bosons produced nonthermally in a preheating ...
, Kolb, , Linde, , Riotto
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Resurrection of Grand Unified Theory Baryogenesis [PDF]
A `new' scenario is proposed for baryogenesis. We show that delayed decay of coloured Higgs particles in grand unified theories may generate excess baryon number of the empirically desired amount, if the mass of the heaviest neutrino is in the range $0.02 {\rm eV}
Fukugita, M., Yanagida, T.
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The author Wan-Chung Hu(born1973) is a MD (National Taiwan University) and PhD (Johns Hopkins University). This book contains theories in physics, chemistry, biology, geosciences, and mathematics. Spinity is a force to drag spacetime to rotate around central mass.
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With the grand desert hypothesis, we have proposed to probe the supersymmetric Grand Unified Theories (GUTs) at the future proton–proton (pp) colliders and Hyper-Kamiokande experiment previously.
Waqas Ahmed, Tianjun Li, Shabbar Raza
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Grand unified theory with a stable proton [PDF]
We demonstrate that a phenomenologically viable four-dimensional grand unified theory with no proton decay can be constructed. This is done in the framework of the minimal nonsupersymmetric SU(5) GUT by introducing new representations and separating the physical quark and lepton fields into different multiplets.
Fornal, Bartosz, Grinstein, Benjamín
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If the past exists only in its retelling, I’ll tell you that I picture her with a Greek hook to her nose. She’s maybe a little astigmatic, fond of her library and matters of state. She’s more charming than most but no more murder-prone than her forbears or than having a brother-husband might make anyone.
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On the origin of Poincaré gauge gravity
We argue that the origin of Poincaré gauge gravity (PGG) may be related to spontaneous violation of underlying spacetime symmetries involved and appearance of gauge fields as vector Goldstone bosons.
J.L. Chkareuli
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Confronting SO(10) GUTs with proton decay and gravitational waves
Grand Unified Theories (GUT) predict proton decay as well as the formation of cosmic strings which can generate gravitational waves. We determine which non-supersymmetric SO(10) breaking chains provide gauge unification in addition to a gravitational ...
Stephen F. King +3 more
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