scholarly journals Dirac's Magnetic Monopoles (Again)

2004 ◽  
Vol 19 (supp01) ◽  
pp. 137-143 ◽  
Author(s):  
Roman W. Jackiw
Keyword(s):  
Vector Potential ◽  
Magnetic Monopole ◽  
Magnetic Monopoles

Dirac's quantization of magnetic monopole strength is derived without reference to a (singular, patched) vector potential.

Measurement of Neutrino's Magnetic Monopole Charge, Aether, Dark Energy and Cause of Quantum Mechanical Uncertainty

2020 ◽  
Author(s):  
Eue Jin Jeong ◽  
Dennis Edmondson
Keyword(s):  
Particle Physics ◽  
Magnetic Monopole ◽  
High Strength ◽  
Weak Decay ◽  
Magnetic Monopoles ◽  
Electron Neutrino ◽  
Logistic Distribution ◽  
Quantum Mechanical ◽  
Elementary Particle Physics ◽  
The Universe

Abstract Charge conservation in the theory of elementary particle physics is one of the best-established principles in physics. As such, if there are magnetic monopoles in the universe, the magnetic charge will most likely be a conserved quantity like electric charges. If neutrinos are magnetic monopoles, as physicists have speculated the possibility, then neutrons must also have a magnetic monopole charge, and the Earth should show signs of having a magnetic monopole charge on a macroscopic scale. To test this hypothesis, experiments were performed to detect the magnetic monopole's effect near the equator by measuring the Earth's radial magnetic force using two balanced high strength neodymium rods magnets that successfully identified the magnetic monopole charge. From this observation, we conclude that at least the electron neutrino which is a byproduct of weak decay of the neutron must be magnetic monopole. We present mathematical expressions for the vacuum electric field based on the findings and discuss various physical consequences related to the symmetry in Maxwell's equations, the origin of quantum mechanical uncertainty, the medium for electromagnetic wave propagation in space, and the logistic distribution of the massive number of magnetic monopoles in the universe. We elaborate on how these seemingly unrelated mysteries in physics are intimately intertwined together around magnetic monopoles.

The theoretical behaviour of a magnetic monopole in a wilson cloud chamber

1951 ◽  
Vol 47 (1) ◽  
pp. 196-206 ◽  
Author(s):  
H. J. D. Cole
Keyword(s):  
Electric Charge ◽  
Sharp Increase ◽  
Magnetic Monopole ◽  
Ion Pairs ◽  
Magnetic Monopoles ◽  
Cloud Chamber ◽  
Heavy Particles ◽  
Α Particles

AbstractDirac has suggested that the quantization of electric charge could be explained by the existence of magnetic monopoles. In view of this hypothesis, this paper investigates what theoretically would be the behaviour of such monopoles in a Wilson cloud chamber. The treatment, which for simplicity is basically classical, closely follows Bohr's work on the decrease of velocity and ionization properties of α- and β-particles, and expressions are derived for the rate of decrease of energy and the number of ion-pairs produced per centimetre by a monopole passing through a gas. These expressions are then discussed with particular reference to the case of heavy particles, and the main differences between them and the corresponding expressions for α-particles both as to range and ionization are indicated; these differences can be summarized by saying that monopoles have much shorter paths, but create many more ion-pairs per centimetre than α-particles. Also, the very sharp increase in the ionization at the end of the path of an electric particle is missing, the ionization for the monopole decreasing to a small amount near the end of the path.

scholarly journals Can Magnetic Monopoles and Massive Photons Coexist in the Framework of the Same Classical Theory?

2007 ◽  
Vol 2007 ◽  
pp. 1-14
Author(s):  
C. Cafaro ◽  
S. Capozziello ◽  
Ch. Corda ◽  
S. A. Ali
Keyword(s):  
Field Theory ◽  
Classical Theory ◽  
Magnetic Monopole ◽  
Electromagnetic Interaction ◽  
Magnetic Monopoles ◽  
Quantum Field ◽  
Finite Range ◽  
Electromagnetic Interactions ◽  
Self Consistent ◽  
Massive Photons

It is well known that one cannot construct a self-consistent quantum field theory describing the nonrelativistic electromagnetic interaction mediated by massive photons between a point-like electric charge and a magnetic monopole. We show that, indeed, this inconsistency arises in the classical theory itself. No semiclassic approximation or limiting procedure forℏ→0is used. As a result, the string attached to the monopole emerges as visible also if finite-range electromagnetic interactions are considered in classical framework.

scholarly journals Measurement of Neutrino's Magnetic Monopole Charge, Vacuum Energy and Cause of Quantum Mechanical Uncertainty

2020 ◽  
Author(s):  
Eue Jin Jeong ◽  
Dennis Edmondson
Keyword(s):  
Particle Physics ◽  
Magnetic Monopole ◽  
High Strength ◽  
Weak Decay ◽  
Magnetic Monopoles ◽  
Electron Neutrino ◽  
Logistic Distribution ◽  
Quantum Mechanical ◽  
Elementary Particle Physics ◽  
The Universe

Abstract Charge conservation in the theory of elementary particle physics is one of the best-established principles in physics. As such, if there are magnetic monopoles in the universe, the magnetic charge will most likely be a conserved quantity like electric charges. If neutrinos are magnetic monopoles, as physicists have speculated the possibility, then neutrons must also have a magnetic monopole charge, and the Earth should show signs of having a magnetic monopole charge on a macroscopic scale. To test this hypothesis, experiments were performed to detect the magnetic monopole's effect near the equator by measuring the Earth's radial magnetic force using two balanced high strength neodymium rods magnets that successfully identified the magnetic monopole charge. From this observation, we conclude that at least the electron neutrino which is a byproduct of weak decay of the neutron must be magnetic monopole. We present mathematical expressions for the vacuum electric field based on the findings and discuss various physical consequences related to the symmetry in Maxwell's equations, the origin of quantum mechanical uncertainty, the medium for electromagnetic wave propagation in space, and the logistic distribution of the massive number of magnetic monopoles in the universe. We elaborate on how these seemingly unrelated mysteries in physics are intimately intertwined together around magnetic monopoles.

scholarly journals The MoEDAL Experiment at the LHC - Searching for Physics Beyond the Standard Model

2018 ◽  
Vol 182 ◽  
pp. 02096
Author(s):  
James Pinfold
Keyword(s):  
Standard Model ◽  
Magnetic Monopole ◽  
Magnetic Charge ◽  
New Physics ◽  
Magnetic Monopoles ◽  
Beyond The Standard Model ◽  
Centre Of Mass ◽  
Mass Energy ◽  
Physics Program ◽  
The Standard Model

MoEDAL is a pioneering experiment designed to search for highly ionizing messengers of new physics such as magnetic monopoles or massive (pseudo-)stable charged particles, that are predicted to exist in a plethora of models beyond the Standard Model. It started data taking at the LHC at a centre-of-mass energy of 13 TeV, in 2015. MoEDAL’s ground breaking physics program defines a number of scenarios that yield potentially revolutionary insights into such foundational questions as: are there extra dimensions or new symmetries; what is the mechanism for the generation of mass; does magnetic charge exist; and what is the nature of dark matter. MoEDAL’s purpose is to meet such far-reaching challenges at the frontier of the field. We will present an overview of the MoEDAL detector, including the planned MAPP subdetector, as well as MoEDAL’s physics program. The concluding section highlights our first physics results on Magnetic Monopole production, that are the world’s best for Monopoles with multiple magnetic charge.

scholarly journals THE FIELD EQUATION FROM NEWTON'S LAW OF MOTION AND THE ABSENCE OF MAGNETIC MONOPOLE

2001 ◽  
Vol 16 (07) ◽  
pp. 1237-1247 ◽  
Author(s):  
PARAMPREET SINGH ◽  
NARESH DADHICH
Keyword(s):  
Field Equation ◽  
Differential Operator ◽  
Magnetic Monopole ◽  
Linear Differential Operator ◽  
Magnetic Monopoles ◽  
Classical Electrodynamics ◽  
Newton's Law ◽  
Newton’S Law ◽  
Newton’S Law Of Motion ◽  
Linear Differential

By requiring the linear differential operator in Newton's law of motion to be self adjoint, we obtain the field equation for the linear theory, which is the classical electrodynamics. In the process, we are also led to a fundamental universal chiral relation between electric and magnetic monopoles which implies that the two are related. Thus there could just exist only one kind of charge which is conventionally called electric.

scholarly journals Searches for magnetic monopoles with IceCube

2018 ◽  
Vol 168 ◽  
pp. 04010 ◽  
Author(s):  
Anna Pollmann
Keyword(s):  
Particle Physics ◽  
Large Scale ◽  
Magnetic Monopole ◽  
High Energy ◽  
Magnetic Monopoles ◽  
Cherenkov Light ◽  
Beyond The Standard Model ◽  
Baryon Decay ◽  
Icecube Detector ◽  
Pass Through

Particles that carry a magnetic monopole charge are proposed by various theories which go beyond the Standard Model of particle physics. The expected mass of magnetic monopoles varies depending on the theory describing its origin, generally the monopole mass far exceeds those which can be created at accelerators. Magnetic monopoles gain kinetic energy in large scale galactic magnetic fields and, depending on their mass, can obtain relativistic velocities. IceCube is a high energy neutrino detector using the clear ice at the South Pole as a detection medium. As monopoles pass through this ice they produce optical light by a variety of mechanisms. With increasing velocity, they produce light by catalysis of baryon decay, luminescence in the ice associated with electronic excitations, indirect and direct Cherenkov light from the monopole track, and Cherenkov light from cascades induced by pair creation and photonuclear reactions. By searching for this light, current best limits for the monopole flux over a broad range of velocities was achieved using the IceCube detector. A review of these magnetic monopole searches is presented.

scholarly journals Ongoing magnetic monopole searches with IceCube

2018 ◽  
Vol 182 ◽  
pp. 02071
Author(s):  
Frederik Lauber
Keyword(s):  
Visible Light ◽  
Particle Physics ◽  
Magnetic Monopole ◽  
Magnetic Charge ◽  
Magnetic Monopoles ◽  
Cherenkov Light ◽  
Light Production ◽  
The Standard Model ◽  
Production Mechanisms ◽  
Luminescence Light

The IceCube collaboration has instrumented a cubic kilometer of ice with 5160 photo-multipliers. While mainly developed to detect Cherenkov light, any visible light can be used to detect particles within the ice. Magnetic monopoles are hypothetical particles predicted by many theories that extend the Standard model of Particle Physics. They are carriers of a single elementary magnetic charge. For this particle, different light production mechanisms dominate from direct Cherenkov light at highly relativistic velocities (> 0:76 c), indirect Cherenkov light at mildly relativistic velocities (> 0:5 c to 0:76 c), luminescence light at low relativistic velocities (≳ 0:1 c to 0:5 c), as well as catalysis of proton decay at non relativistic velocities (≲ 0:1 c). For each of this speed ranges, searches for magnetic monopoles at the IceCube experiment are either in progress or they have already set the worlds best limits on the flux of magnetic monopoles. A summary of these searches will be presented, outlining already existing results as well as methods used by the currently conducted searches.

scholarly journals Quantized gravito-magnetic charges from WIMT: cosmological consequences

2015 ◽  
Vol 93 (4) ◽  
pp. 445-448 ◽  
Author(s):  
Jesús Martín Romero ◽  
Mauricio Bellini
Keyword(s):  
Symmetry Breaking ◽  
Electric Charge ◽  
Magnetic Monopole ◽  
Magnetic Charge ◽  
Topological String ◽  
Magnetic Monopoles ◽  
Matter Theory ◽  
Expansion Of The Universe ◽  
Induced Matter ◽  
The Universe

Using the formalism of Weitzenböck induced matter theory (WIMT) we calculate the gravito-magnetic charge on a topological string, which is induced through a foliation on a five-dimensional (5D) gravito-electromagnetic vacuum defined on a 5D Ricci-flat metric, which produces symmetry breaking on an axis. We obtain the resonant result that the quantized charges are induced on the effective four-dimensional hypersurface. This quantization describes the behavior of a test gravito-electric charge in the vicinity of a point gravito-magnetic monopole, both geometrically induced from a 5D vacuum. We demonstrate how gravito-magnetic monopoles would decrease exponentially during the inflationary expansion of the universe.

scholarly journals Measurement of Neutrino's Magnetic Monopole Charge, Vacuum Energy and Cause of Quantum Mechanical Uncertainty

2020 ◽  
Author(s):  
Eue Jin Jeong ◽  
Dennis Edmondson
Keyword(s):  
Particle Physics ◽  
Magnetic Monopole ◽  
High Strength ◽  
Weak Decay ◽  
Magnetic Monopoles ◽  
Electron Neutrino ◽  
Logistic Distribution ◽  
Quantum Mechanical ◽  
Elementary Particle Physics ◽  
The Universe

Abstract Charge conservation in the theory of elementary particle physics is one of the best-established principles in physics. As such, if there are magnetic monopoles in the universe, the magnetic charge will most likely be a conserved quantity like electric charges. If neutrinos are magnetic monopoles, as physicists have speculated the possibility, then neutrons must also have a magnetic monopole charge, and the Earth should show signs of having a magnetic monopole charge on a macroscopic scale. To test this hypothesis, experiments were performed to detect the magnetic monopole's effect near the equator by measuring the Earth's radial magnetic force using two balanced high strength neodymium rods magnets that successfully identified the magnetic monopole charge. From this observation, we conclude that at least the electron neutrino which is a byproduct of weak decay of the neutron must be magnetic monopole. We present mathematical expressions for the vacuum electric field based on the findings and discuss various physical consequences related to the symmetry in Maxwell's equations, the origin of quantum mechanical uncertainty, the medium for electromagnetic wave propagation in space, and the logistic distribution of the massive number of magnetic monopoles in the universe. We elaborate on how these seemingly unrelated mysteries in physics are intimately intertwined together around magnetic monopoles.

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