arXiv subjects

Heui-Seol Roh

Publications and source records attributed to Heui-Seol Roh.

11 recordsLinked to original sources

arXiv2002

Quantum Weakdynamics as an SU(3)_I Gauge Theory: Grand Unification of Strong and Electroweak Interactions

Quantum weakdynamics (QWD) as an SU(3)_I gauge theory with the Theta vacuum term is considered to be the unification of the electroweak interaction as an SU(2)_L x U(1)_Y gauge theory. The grand unification of SU(3)_I x SU(3)_C beyond the standard model SU(3)_C x SU(2)_L x U(1)_Y is established by the group SU(3)_I. The grand unified interactions break down to weak and strong interactions at a new grand unification scale 10^{3} GeV, through dynamical spontaneous symmetry breaking (DSSB); the weak and strong coupling constants are the same, alpha_i = alpha_s ~ 0.12, at this scale. DSSB is realized by the condensation of scalar fields, postulated to be spatially longitudinal components of gauge bosons, instead of Higgs particles. Quark and lepton family generation, the Weinberg angle sin^2 theta_W = 1/4, and the Cabbibo angle sin theta_C = 1/4 are predicted. The electroweak coupling constants are alpha_z = alpha_i/3, alpha_w = alpha_i/4, alpha_y = alpha_i/12, and alpha_e = alpha_i/16 = 1/137; there are symmetric isospin interactions.

hep-ph↗

arXiv2001

Matter Mass Generation and Theta Vacuum: Dynamical Spontaneous Symmetry Breaking

This work proposes a stringent concept of matter mass generation and Theta vacuum in the context of local gauge theory for the strong force under the constraint of the flat universe. The matter mass is generated as the consequence of dynamical spontaneous symmetry breaking (DSSB) of gauge symmetry and discrete symmetries, which is motivated by the parameter Theta representing the surface term. Matter mass generation introduces the typical features of constituent particle mass, dual Meissner effect, and hyperfine structure. The Theta term plays important roles on the DSSB of the gauge group and on the quantization of the matter and vacuum space. The Theta vacuum exhibits the intrinsic principal number and intrinsic angular momentum for intrinsic space quantization in analogy with the extrinsic principal number and extrinsic angular momentum for extrinsic space quantization.

hep-ph↗

arXiv2001

Fundamental Forces as Gauge Theories

This study proposes that all the known fundamental forces including gravity may be described by local gauge theories. Gravitational, electroweak, and strong interactions on length scales from 10^{-33} cm to 10^{28} cm are systematically discussed from the unified gauge theory point of view toward a ultimate theory for fundamental forces. New concepts such as dynamical spontaneous symmetry breaking, gauge group hierarchy, coupling constant hierarchy, effective coupling constant hierarchy, cosmological constant, massive gauge bosons, massless gauge bosons, quantum weakdynamics, analogy between quantum weakdynamics and quantum chromodynamics, a possible gauge theory for the universe expansion, the relation between time and gauge boson mass, other quantum tests, etc. are briefly reported based on experiments.

hep-ph↗

arXiv2001

Fundamental Constants and Conservation Laws

This work describes underlying features of the universe such as fundamental constants and cosmological parameters, conservation laws, baryon and lepton asymmetries, etc. in the context of local gauge theories for fundamental forces under the constraint of the flat universe. Conservation laws for fundamental forces are related to gauge theories for fundamental forces, their resulting fundamental constants are quantitatively analyzed, and their possible violations at different energy scales are proposed based on experimental evidences.

hep-ph↗

arXiv2001

Dynamical Spontaneous Symmetry Breaking in Quantum Chromodynamics

This study proposes that the longstanding problems of quantum chromodynamics (QCD) as an SU(3)_C gauge theory, the confinement mechanism and Θvacuum, can be resolved by dynamical spontaneous symmetry breaking (DSSB) through the condensation of singlet gluons and quantum nucleardynamics (QND) as an SU(2)_N \times U(1)_Z gauge theory is produced. The confinement mechanism is the result of massive gluons and the Yukawa potential provides hadron formation. The evidences for the breaking of discrete symmetries (C, P, T, CP) during DSSB appear explicitly: baryons and mesons without their parity partners, the conservation of vector current and the partial conservation of the axial vector current, the baryon asymmetry δ_B \simeq 10^{-10}, and the neutron electric dipole moment Θ< 10^{-9}.

hep-ph↗

arXiv2001

Quantum Nucleardynamics as an SU(2)_N \times U(1)_Z Gauge Theory

It is shown that quantum nucleardynamics (QND) as an SU(2)_N \times U(1)_Z gauge theory, which is generated from quantum chromodynamics (QCD) as an SU(3)_C gauge theory through dynamical spontaneous symmetry breaking, successfully describes nuclear phenomena at low energies. The proton and neutron assigned as a strong isospin doublet are identified as a colorspin plus weak isospin doublet. Massive gluon mediates strong interactions with the effective coupling constant G_R/\sqrt{2}= g_n^2/8 M_G^2 \approx 10 GeV^{-2} just like Fermi weak constant G_F/\sqrt{2} = g_w^2/8 M_W^2 \approx 10^{-5} GeV^{-2} in the Glashow-Weinberg-Salam model where g_n and g_w are the coupling constants and M_G and M_W are the gauge boson masses. Explicit evidences such as lifetimes and cross sections of nuclear scattering and reaction, nuclear matter and charge densities, nucleon-nucleon scattering, magnetic dipole moment, gamma decay, etc. are shown in support of QND. The baryon number conservation is the consequence of the U(1)_Z gauge theory and the proton number conservation is the consequence of the U(1)_f gauge theory.

hep-ph↗

arXiv2000

Toward Quantum Gravity I: Newton Gravitation Constant, Cosmological Constant, and Classical Tests

This study toward quantum gravity (QG) introduces an SU(N) gauge theory with the Θvacuum term as a trial theory. Newton gravitation constant G_N is realized as the effective coupling constant for a massive graviton, G_N /\sqrt{2} = g_f g_g^2/8 M_G^2 \simeq 10^{-38} GeV^{-2} with the gauge boson mass M_G = M_{Pl} \simeq 10^{19} GeV, the gravitational coupling constant g_g, and the gravitational factor g_f. This scheme postulates the effective cosmological constant as the effective vacuum energy represented by massive gauge bosons, Λ_e = 8 πG_N M_G^4, and provides a plausible explanation for the small cosmological constant at the present epoch Λ_0 \simeq 10^{-84} GeV^2 and the large value at the Planck epoch Λ_{Pl} \simeq 10^{38} GeV^2; the condensation of the singlet gauge field <ϕ> triggers the current anomaly and subtracts the gauge boson mass, M_G^2 = M_{Pl}^2 - g_f g_g^2 <ϕ>^2 = g_f g_g^2 (A_{0}^2 - <ϕ>^2), as the vacuum energy. Relations among QG, general relativity, and Newtonian mechanics are discussed.

gr-qc↗

arXiv2000

Toward Quantum Gravity II: Quantum Tests

This study toward quantum gravity (QG) introduces an SU(N) gauge theory with the Θvacuum term for gravitational interactions, which leads to a group SU(2)_L x U(1)_Y x SU(3)_C for weak and strong interactions through dynamical spontaneous symmetry breaking (DSSB). Newton gravitation constant G_N and the effective cosmological constant are realized as the effective coupling constant and the effective vacuum energy, respectively, due to massive gauge bosons. A gauge theory relevant for the non-zero gauge bosons, 10^{-12} GeV, and the massless gauge boson (photon) is predicted as a new dynamics for the universe expansion: this is supported by the repulsive force, indicated in BUMERANG-98 and MAXIMA-1 experiments, and cosmic microwave background radiation. Under the constraint of the flat universe, Ω= 1 - 10^{-61}, the large cosmological constant in the early universe becomes the source of the exponential expansion in 10^{30} order as expected in the inflation theory, nearly massless gauge bosons are regarded as strongly interacting mediators of dark matter, and the baryon asymmetry is related to the DSSB mechanism.

gr-qc↗

arXiv2000

Quantum Nucleardynamics as an SU(2)_N x U(1)_Z Gauge Theory

It is illustrated that quantum nucleardynamics (QND) as an SU(2)_N x U(1)_Z gauge theory, which is generated from quantum chromodynamics (QCD) as an SU(3)_C gauge theory through dynamical spontaneous symmetry breaking, successfully describes nuclear phenomena at low energies. The proton and neutron assigned as a strong isospin doublet are identified as a colorspin plus weak isospin doublet. Massive gluon mediates strong interactions with the effective coupling constant G_R/\sqrt{2} = g_n^2/8 M_G^2 \simeq 10 GeV^{-2} just like Fermi weak constant G_F/\sqrt{2} = g_w^2/8 M_W^2 \simeq 10^{-5} GeV^{-2} in the Glashow-Weinberg-Salam model where g_n and g_w are the coupling constants and M_G and M_W are the gauge boson masses. Several explicit evidences such as cross sections, lifetimes, nucleon-nucleon scattering, magnetic dipole moment, nuclear potential, gamma decay, etc. are shown in support of QND. The baryon number conservation is the consequence of the U(1)_Z gauge theory and the proton number conservation is the consequence of the U(1)_f gauge theory.

nucl-th↗

arXiv2000

QCD Confinement and Theta Vacuum: Dynamical Spontaneous Symmetry Breaking

This study proposes that the longstanding problems of quantum chromodynamics (QCD) as an SU(3)_C gauge theory, the confinement mechanism and Θvacuum, can be resolved by dynamical spontaneous symmetry breaking (DSSB) through the condensation of singlet gluons and quantum nucleardynamics (QND) as an SU(2)_N x U(1)_Z gauge theory is produced. The confinement mechanism is the result of massive gluons and the Yukawa potential provides hadron formation. The evidences for the breaking of discrete symmetries (C, P, T, CP) during DSSB appear explicitly: baryons and mesons without their parity partners, the conservation of vector current and the partial conservation of the axial vector current, the baryon asymmetry δ_B \simeq 10^{-10}, and the neutron electric dipole moment Θ< 10^{-9}. Hadron mass generation mechanism is suggested in terms of DSSB due to the Θvacuum.

hep-th↗

arXiv1996

Chiral Phase Transition at Finite Temperature in the Linear Sigma Model

We study the chiral phase transition at finite temperature in the linear sigma model by employing a self-consistent Hartree approximation. This approximation is introduced by imposing self-consistency conditions on the effective meson mass equations which are derived from the finite temperature one-loop effective potential. It is shown that in the limit of vanishing pion mass, namely when the chiral symmetry is exact, the phase transition becomes a weak first order accompanying a gap in the order parameter as a function of temperature. This is caused by the long range fluctuations of meson fields whose effective masses become small in the transition region. It is shown, however, that with an explicit chiral symmetry breaking term in the Lagrangian which generates the realistic finite pion mass the transition is smoothed out irrespective of the choice of coupling strength.

nucl-th↗