Hadron magnetic moment in the spinor strong interaction model

1994 ◽  
Vol 33 (12) ◽  
pp. 2351-2363 ◽  
Author(s):  
F. C. Hoh
Keyword(s):  
Strong Interaction ◽  
Magnetic Moment ◽  
Interaction Model

Optimization design for mechanical seals in reactor coolant pumps based on a fluid–solid strong-interaction model

2011 ◽  
Vol 225 (8) ◽  
pp. 1851-1862 ◽  
Author(s):  
C-J Liao ◽  
W-F Huang ◽  
Y-M Wang ◽  
S-F Suo ◽  
X-F Liu
Keyword(s):  
Strong Interaction ◽  
Optimization Design ◽  
Power Plants ◽  
Interaction Model ◽  
Reactor Power ◽  
Mechanical Seals ◽  
Pressurized Water ◽  
Reactor Coolant ◽  
The Operating Mechanism ◽  
And Performance

The study on the mechanism and performance of the mechanical seals in reactor coolant pumps (RCPs) is very important for the safe operations of pressurized water reactor power plants. By exploring the operating mechanism of the first seal of the hydrostatic mechanical seal in RCPs, an analytical fluid–solid strong-interaction model of the seal is proposed in this article. The model holds that the mechanical deformations of the seal assembly are dominated by the deflections of the seal rings, and this idea is demonstrated by the numerical simulation result of a fluid–solid interaction (FSI) model. Using the analytical FSI model, the regularity that the leakage rate of the first seal varies with the differential pressure in a RCP is obtained, and compared with the operational data, which is used to verify the model. Based on the understanding of the reliability of the seal, a dimensionless parameter Λ that acts as an attribute to the reliability is proposed in this article. Using the analytical FSI model and Λ as the optimization algorithm and optimization object, respectively, the optimum designs about the seal faceplateconfigurations are performed. Also, the specific optimization conclusions are given simultaneously.

scholarly journals Experimental and theoretical premises of new stable hadron existence

2017 ◽  
Vol 32 (32) ◽  
pp. 1750188 ◽  
Author(s):  
Yu. N. Bazhutov ◽  
G. M. Vereshkov ◽  
V. I. Kuksa
Keyword(s):  
Cosmic Rays ◽  
Standard Model ◽  
Strong Interaction ◽  
Large Distance ◽  
Interaction Model ◽  
New Physics ◽  
Low Energy ◽  
Hadron Interaction ◽  
Energy Hadron

The hypothesis of the new stable heavy hadrons existence is proposed which follows from Cosmic rays physics indirect data. It is shown that the hypothesis does not contradict Cosmochemical data, Cosmological test and the restrictions on New Physics effects. The conclusion is based on the most important property of the new hadrons — repulsion strong interaction with nucleons at large distance asymptote. This effect is substantiated theoretically in the framework of the low-energy hadron interaction model. Some extensions of Standard Model is considered where new stable and metastable quarks appear.

Characterization of Metallo-porphine Monolayer and Bilayer on Ag(111): Screening of Substrate Effects

2014 ◽  
Vol 618 ◽  
pp. 225-232
Author(s):  
Yu Du ◽  
Xiao Qing Tian ◽  
Jian Bin Xu
Keyword(s):  
Magnetic Properties ◽  
Strong Interaction ◽  
Magnetic Moment ◽  
Adsorbed Molecule ◽  
Bottom Layer ◽  
First Principle ◽  
Substrate Effects ◽  
Substrate Interaction ◽  
Structural Distortions

The structures and magnetic properties of monolayer and bilayer of transitional metallo-porphine (MP) species (M = Mn, Fe, Co, Ni, Cu) on the Ag (111) substrate are investigated by DFT based first-principle method. The MP monolayer has a distortion about 10° towards the substrate due to strong interaction between adsorbed molecule and substrate. The molecule-substrate interaction could quench the magnetic moment of the adsorbed molecule. For MP bilayer adsorption on the Ag (111), the top layer remains its planar structure and magnetic moment due to the screening of substrate effects by bottom layer, meanwhile the bottom layer has strong structural distortions and obvious variations of magnetic moment.

scholarly journals Strong interaction model in DFR noncommutative space–time

2017 ◽  
Vol 32 (17) ◽  
pp. 1750099 ◽  
Author(s):  
Everton M. C. Abreu ◽  
Mario Junior Neves
Keyword(s):  
Gauge Symmetry ◽  
Strong Interaction ◽  
Extra Dimension ◽  
Interaction Model ◽  
New Physics ◽  
Space Time ◽  
Noncommutative Space ◽  
Abelian Gauge ◽  
Canonical Momentum ◽  
Extended Space

The Doplicher–Fredenhagen–Roberts (DFR) framework for noncommutative (NC) space–times is considered as an alternative approach to describe the physics of quantum gravity, for instance. In this formalism, the NC parameter, i.e. [Formula: see text], is promoted to a coordinate of a new extended space–time. Consequently, we have field theory in a space–time with spatial extra-dimensions. This new coordinate has a canonical momentum associated, where the effects of a new physics can emerge in the fields propagation along the extra-dimension. In this paper, we introduce the gauge invariance in the DFR NC space–time by the composite symmetry [Formula: see text]. We present the non-Abelian gauge symmetry in DFR formalism and the consequences of this symmetry in the presence of such extra-dimension. The gauge symmetry in this DFR scenario can reveal new gauge fields attached to [Formula: see text]-extra-dimension. As application, we construct a unification of Strong Interaction with the electromagnetism and a Higgs model to give masses to the NC bosons. We estimate their masses by using some experimental constraints of QCD.

GAUGE INVARIANCE AND QUANTIZATION OF THE SPINOR STRONG INTERACTION MODEL

1994 ◽  
Vol 09 (03) ◽  
pp. 365-381 ◽  
Author(s):  
F.C. HOH
Keyword(s):  
Strong Interaction ◽  
Gauge Invariance ◽  
Rest Frame ◽  
Finite Size ◽  
Interaction Model ◽  
Relative Energy ◽  
Higgs Bosons ◽  
Pseudoscalar Mesons ◽  
Electroweak Model ◽  
External Gauge

The spinor strong interaction model recently proposed to account for the meson spectra is extended to include interaction with external gauge fields. An action integral is constructed and a restricted variational principle is employed to reproduce the earlier basic meson equations. In establishing U(1) gauge invariance, the so-called U(1) problem, the absence of pseudoscalar singlet mesons that do not decay strongly, is naturally resolved. SU(2)× U(1) or SO(3) gauge invariance leads to that pseudoscalar isodoublet or isotriplet mesons can generate masses of the gauge bosons without recourse to the unobserved Higgs bosons of the standard electroweak model. The gauge boson masses relate to the linear confinement potential constant of pseudoscalar mesons. The spinor strong interaction model is quantized in a macroscopic approximation due to the finite size of mesons. Commutation relations and the rest frame Hamiltonian are obtained. In this frame, the relative energy of the quark and antiquark is shown to vanish.

scholarly journals Half-Metallic Ferromagnetism in Chalcopyrite (AlGaMn)P2Alloys

2015 ◽  
Vol 2015 ◽  
pp. 1-7
Author(s):  
Byung-Sub Kang ◽  
Kwang-Pyo Chae ◽  
Haeng-Ki Lee
Keyword(s):  
Magnetic Properties ◽  
Strong Interaction ◽  
Magnetic Moment ◽  
First Principles ◽  
First Principles Calculations ◽  
Half Metallic ◽  
Spin Polarized ◽  
Mn Doped ◽  
Metallic Ferromagnetism ◽  
Half Metallic Ferromagnetism

We studied the electronic and magnetic properties of (Al1−yMny)GaP2(Ga-rich) and Al(Ga1−yMny)P2(Al-rich) withy = 0.03125, 0.0625, 0.09375, and 0.125 by using the first-principles calculations. The ferromagnetic Mn-doped AlGaP2chalcopyrite is the most energetically favorable one. The spin polarized Al(GaMn)P2state (Al-rich system) is more stable than spin polarized (AlMn)GaP2state (Ga-rich) with the magnetic moment of 3.8 μB/Mn. The Mn-doped AlGaP2yields strong half-metallic ground states. The states of host Al, Ga, or P atoms at the Fermi level are mainly a P-3pcharacter, which mediates a strong interaction between the Mn-3dand P-3pstates.

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