Results 1 to 10 of about 102,001 (282)

Implications of a dark grand unification

Journal of High Energy Physics
Given that dark matter and normal matter are nontrivially unified in a grand unified theory, called dark grand unification, we derive novel residual theories at low energy explaining dark matter and neutrino mass.
Phung Van Dong, Do Thi Huong
doaj   +1 more source

Neutrino Mass and Grand Unification

, 2004
Seesaw mechanism appears to be the simplest and most appealing way to understand small neutrino masses observed in recent experiments. It introduces three right handed neutrinos with heavy masses to the standard model, with at least one mass required by ...
Altarelli G, Ambats I (NOvA Collaboration), Anderson K, Antusch S, Aulakh C S, Ayrea D, Bahcall J N, Bertolini S, Casas J, Conrad J, Dutta B, Dutta B, Dutta B, Frampton P, Fukuyama T, Fukuyama T, Gell-Mann M, Georgi H, Glashow S L, Goh H S, Gonzalez-Garcia, Grimus W, Itow Y (T2K collaboration), King S F, King S F, Maltoni M, Minakata H, Mohapatra R N, Mohapatra R N, Mohapatra R N, Mohapatra R N, Oshimo N, Pati J C, R N Mohapatra, Raidal M, Smirnov A, Yanagida T, Yang W M   +37 more
core   +1 more source

See-saw and grand unification

, 2005
I review the profound connection between the see-saw mechanism for neutrino masses and grand unification. This connection points naturally towards SO(10) grand unified theory.
Senjanovic, Goran
core   +1 more source

Asymptotic grand unification in SO(10) with one extra dimension

Journal of High Energy Physics
Asymptotic grand unification provides an alternative approach to gradually unify gauge couplings in the UV limit, where they reach a non-trivial UV fixed point.
Gao-Xiang Fang, Zhi-Wei Wang, Ye-Ling Zhou   +2 more
doaj   +1 more source

GRAND UNIFICATION

Le Journal de Physique Colloques, 1982
No abstract ...
openaire   +3 more sources

Perturbative SO(10) Grand Unification

, 2005
We consider a phenomenologically viable SO(10) grand unification model of the unification scale $M_G$ around $10^{16} $ GeV which reproduces the MSSM at low energy and allows perturbative calculations up to the Planck scale $M_P$ or the string scale $M_ ...
D. Emmanuel-Costa, Darwin Chang, M. Gell-Mann, M. Shiozawa, Nobuchika Okada, T. Yanagida, Takeshi Fukuyama, Tatsuru Kikuchi, Yong-Yeon Keum   +8 more
core   +1 more source

Five dimensional $$SU(5) \times U(1)_\textrm{PQ}$$ S U ( 5 ) × U ( 1 ) PQ grand unification

European Physical Journal C: Particles and Fields
We propose a grand unified model in five dimensions that addresses the strong CP problem. In this framework, the boundary conditions that break the unified gauge group into the Standard Model gauge group simultaneously explain the mass splitting of the ...
Norimi Yokozaki, Junhao Zhu
doaj   +1 more source

Solar neutrinos and grand unification

, 1997
We consider the Grand Unification (GU) scenario for neutrino masses which is based on the see-saw mechanism with the mass of the heaviest right handed (RH) neutrino at the GU-scale: $M_3 \sim \Lambda_{GU}$, and on the quark-lepton symmetry for fermions ...
A. Brignole, A. Yu. Smirnov, A. Yu. Smirnov, A. Yu. Smirnov, B. Faid, C. Athanassopoulos, E. Akhmedov, E. Akhmedov, F. Vissani, G. L. Fogli, H. Georgi, I. Pomeranchuk, J. N. Bahcall, K. S. Babu, K. S. Babu, K. S. Babu, K. S. Babu, L. Covi, L. Wolfenstein, M. Fukugita, M. Gell-Mann, M. S. Chanowitz, M. Tanimoto, N. Hata, P. I. Krastev, P. Langacker, Q. Y. Liu, Q. Y. Liu, R. Barbieri, R. N. Mohapatra, S. D. Ellis, S. Dimopoulos, S. P. Mikheyev, S. P. Mikheyev, S. Weinberg, W. Buchmüller   +35 more
core   +2 more sources

Yukawa unification with four Higgs doublets in supersymmetric GUT

Physics Letters B, 2019
We discuss the Yukawa coupling unification, which can emerge in the grand unified theory, in the context of scenarios with more than one pair of Higgs doublet since the current LHC constraint has become a problem for the Yukawa unification scenarios with
Bhaskar Dutta, Yukihiro Mimura
doaj   +1 more source

Small instantons and the post-inflationary QCD axion in a special product GUT

Journal of High Energy Physics
We present a new framework of grand unification that is equipped with an axion solution to the strong CP problem without a domain wall problem when the Peccei-Quinn (PQ) symmetry is spontaneously broken after inflation.
Shihwen Hor, Yuichiro Nakai, Motoo Suzuki, Junxuan Xu   +3 more
doaj   +1 more source