Vacuum current induced by an axial-vector condensate and electron anomalous magnetic moment in a magnetic field

2017 ◽  
Vol 96 (1) ◽  
Author(s):  
A. F. Bubnov ◽  
N. V. Gubina ◽  
V. Ch. Zhukovsky
Keyword(s):  
Magnetic Field ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Axial Vector

scholarly journals Neutron anomalous magnetic moment in dense magnetized systems

2018 ◽  
Vol 27 (02) ◽  
pp. 1850011
Author(s):  
Zeinab Rezaei
Keyword(s):  
Magnetic Field ◽  
Equation Of State ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Nuclear Potential ◽  
Order Constraint ◽  
The Magnetic Field

In this work, we calculate the neutron anomalous magnetic moment (AMM) supposing that this value can depend on the density and magnetic field of the system. We employ the lowest-order constraint variation (LOCV) method and [Formula: see text] nuclear potential to calculate the medium dependency of the neutron AMM. It is confirmed that the neutron AMM increases by increasing the density, while it decreases as the magnetic field grows. The energy and equation of state for the system have also been investigated.

Anomalous magnetic moment of the electron in a magnetic field

1976 ◽  
Vol 15 (5) ◽  
pp. 149-152 ◽  
Author(s):  
V. N. Baier ◽  
V. M. Katkov ◽  
V. M. Strakhovenko
Keyword(s):  
Magnetic Field ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment

scholarly journals Electroweak fermion triangle loop contributions to the muon anomalous magnetic moment revisited

2020 ◽  
Vol 2020 (9) ◽  
Author(s):  
Ken Sasaki
Keyword(s):  
Magnetic Moment ◽  
Top Quark ◽  
Anomalous Magnetic Moment ◽  
Ward Identity ◽  
Axial Vector ◽  
Goldstone Boson ◽  
Muon Anomalous Magnetic Moment ◽  
Feynman Gauge ◽  
Unitary Gauge ◽  
The One

Abstract The contribution to the muon anomalous magnetic moment from the fermion triangle loop diagrams connected to the muon line by a photon and a $Z$ boson is re-analyzed in both the unitary gauge and the ’t Hooft–Feynman gauge. With use of the anomalous axial-vector Ward identity, it is shown that the calculation in the unitary gauge exactly coincides with the one in the ’t Hooft–Feynman gauge. The part which arises from the ordinary axial-vector Ward identity corresponds to the contribution of the neutral Goldstone boson. For the top-quark contribution, the one-parameter integral form is obtained up to the order of $m_\mu^2/m_Z^2$. The results are compared with those obtained by the asymptotic expansion method.

scholarly journals The Electrodynamics of Neutrinos in Dispersive Media

1990 ◽  
Vol 142 ◽  
pp. 35-38
Author(s):  
V.N. Oraevsky ◽  
V.B. Semikoz
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Charge Distribution ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
Dispersive Media ◽  
Mean Square ◽  
Vector Bosons ◽  
Electromagnetic Characteristics ◽  
The Mean

Neutrinos interacting with the vacuum of vector bosons and leptons possess important vacuum electromagnetic characteristics: viz., the anomalous magnetic moment Δμvacν and the mean-square radius of charge distribution <r2>1/2. As a result, neutrinos, just like neutrons, may interact with an external magnetic field.

SELF-MAGNETIZATION IN ELECTROWEAK VACUUM AND IN VERY DENSE SYSTEMS

2011 ◽  
Vol 20 (supp02) ◽  
pp. 168-175
Author(s):  
HUGO PÉREZ ROJAS ◽  
ELIZABETH RODRÍGUEZ QUERTS
Keyword(s):  
Magnetic Field ◽  
High Temperature ◽  
External Field ◽  
Magnetic Moment ◽  
Anomalous Magnetic Moment ◽  
W Bosons ◽  
Large Density ◽  
Electron Positron ◽  
Vector Bosons ◽  
The Magnetic Field

For charged vector bosons (W bosons) of mass mw, magnetization diverges for B → Bcw, which suggests that if the magnetic field is large enough, it can be self-consistently maintained. For photons bearing an anomalous magnetic moment, having a sufficiently large density, their contribution to magnetization might become of the same order than the applied external field, leading also to self-magnetization. We discuss these models in connection to the case of radiation in equilibrium at high temperature (T ~ mc2) coexisting with hot magnetized electron-positron pairs.

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