Muon parity conservation and the universality principle

1971 ◽  
Vol 1 (17) ◽  
pp. 699-702
Author(s):  
S. Y. Tsai
Keyword(s):  
Parity Conservation

Particle and Astro-physics Challenge Kant’s Phenomenolism

1998 ◽  
pp. 323-333
Author(s):  
Lawrence H. Starkey
Keyword(s):  
General Relativity ◽  
Black Hole ◽  
Physical Basis ◽  
Primary Sources ◽  
One Dimension ◽  
Space Curves ◽  
Slowing Down ◽  
Parity Conservation ◽  
Charge Parity ◽  
Einstein’S General Relativity

For two centuries Kant's first Critique has nourished various turns against transcendent metaphysics and realism. Kant was scandalized by reason's impotence in confronting infinity (or finitude) as seen in the divisibility of particles and in spatial extension and time. Therefore, he had to regard the latter as subjective and reality as imponderable. In what follows, I review various efforts to rationalize Kant's antinomies-efforts that could only flounder before the rise of Einstein's general relativity and Hawking's blackhole cosmology. Both have undercut the entire Kantian tradition by spawning highly probable theories for suppressing infinities and actually resolving these perplexities on a purely physical basis by positing curvatures of space and even of time that make them reëntrant to themselves. Heavily documented from primary sources in physics, this paper displays time’s curvature as its slowing down near very massive bodies and even freezing in a black hole from which it can reëmerge on the far side, where a new universe can open up. I argue that space curves into a double Möbius strip until it loses one dimension in exchange for another in the twin universe. It shows how 10-dimensional GUTs and the triple Universe, time/charge/parity conservation, and strange and bottom particle families and antiparticle universes, all fit together.

scholarly journals Spurious poles in the scattering of electric and magnetic charges

2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
John Terning ◽  
Christopher B. Verhaaren
Keyword(s):  
Perturbation Theory ◽  
Scattering Amplitudes ◽  
Pair Production ◽  
Magnetic Particles ◽  
Single Photon ◽  
Low Energy ◽  
Magnetic Interactions ◽  
Parity Conservation ◽  
Non Local ◽  
The Way

Abstract Theories with both electric and magnetic charges (“mutually non-local” theories) have several major obstacles to calculating scattering amplitudes. Even when the interaction arises through the kinetic mixing of two, otherwise independent, U(1)’s, so that all low-energy interactions are perturbative, difficulties remain: using a self-dual, local formalism leads to spurious poles at any finite order in perturbation theory. Correct calculations must show how the spurious poles cancel in observable scattering amplitudes. Consistency requires that one type of charge is confined as a result of one of the U(1)’s being broken. Here we show how the constraints of confinement and parity conservation on observable processes manages to cancel the spurious poles in scattering and pair production amplitudes, paving the way for systematic studies of the experimental signatures of “dark” electric-magnetic processes. Along the way we demonstrate some novel effects in electric-magnetic interactions, including that the amplitude for single photon production of magnetic particles by electric particles vanishes.

Survey of the experimental situation in B -decay

1958 ◽  
Vol 246 (1247) ◽  
pp. 454-462
Keyword(s):  
Angular Correlation ◽  
Momentum Distribution ◽  
Experimental Situation ◽  
Coupling Constants ◽  
Electron Momentum ◽  
Electron Momentum Distribution ◽  
The Past ◽  
Parity Conservation

Until recently our knowledge of the B-decay coupling constants came principally from studies of the electron momentum distribution, the half-lives of B-emitters and the B-v angular correlation. With the discovery of the breakdown of parity conservation we have both an increase in the number of coupling constants and new tools for investigating B-decay. The great stimulus that this has given B-spectroscopists is evidenced by the profusion of papers and preprints which has appeared in the interval and which for a time caused frequent changes in the B-decay situation. In the past month or so since the Israel Conference this spate seems to have subsided somewhat and the situation seems now to be quasi-static.

scholarly journals KÄHLER STABILIZED, MODULAR INVARIANT HETEROTIC STRING MODELS

2007 ◽  
Vol 22 (08n09) ◽  
pp. 1451-1588 ◽  
Author(s):  
MARY K. GAILLARD ◽  
BRENT D. NELSON
Keyword(s):  
Heterotic String ◽  
Target Space ◽  
Modular Invariant ◽  
Heterotic String Theory ◽  
Effective Lagrangian ◽  
Parity Conservation ◽  
Weakly Coupled ◽  
String Models ◽  
Early Universe Cosmology

We review the theory and phenomenology of effective supergravity theories based on orbifold compactifications of the weakly-coupled heterotic string. In particular, we consider theories in which the four-dimensional theory displays target space modular invariance and where the dilatonic mode undergoes Kähler stabilization. A self-contained exposition of effective Lagrangian approaches to gaugino condensation and heterotic string theory is presented, leading to the development of the models of Binétruy, Gaillard and Wu. Various aspects of the phenomenology of this class of models are considered. These include issues of supersymmetry breaking and superpartner spectra, the role of anomalous U(1) factors, issues of flavor and R-parity conservation, collider signatures, axion physics, and early universe cosmology. For the vast majority of phenomenological considerations the theories reviewed here compare quite favorably to other string-derived models in the literature. Theoretical objections to the framework and directions for further research are identified and discussed.

Law of Parity Conservation and Other Symmetry Laws

Science ◽  
1958 ◽  
Vol 127 (3298) ◽  
pp. 565-569 ◽  
Author(s):  
C. N. Yang
Keyword(s):  
Parity Conservation

scholarly journals Revisiting on-shell renormalization conditions in theories with flavor mixing

2016 ◽  
Vol 31 (24) ◽  
pp. 1630038 ◽  
Author(s):  
W. Grimus ◽  
M. Löschner
Keyword(s):  
Canonical Form ◽  
Majorana Fermions ◽  
Pole Mass ◽  
Full Agreement ◽  
Parity Conservation ◽  
Flavor Mixing ◽  
Fermionic Fields

In this review, we present a derivation of the on-shell renormalization conditions for scalar and fermionic fields in theories with and without parity conservation. We also discuss the specifics of Majorana fermions. Our approach only assumes a canonical form for the renormalized propagators and exploits the fact that the inverse propagators are nonsingular in [Formula: see text], where [Formula: see text] is the external four-momentum and [Formula: see text] is a pole mass. In this way, we obtain full agreement with commonly used on-shell conditions. We also discuss how they are implemented in renormalization.

scholarly journals Resonant inelastic x-ray scattering on CO2 : Parity conservation in inversion-symmetric polyatomics

2020 ◽  
Vol 101 (6) ◽  
Author(s):  
Johan Söderström ◽  
Robert Stefanuik ◽  
Franz Hennies ◽  
Thorsten Schmitt ◽  
Vladimir N. Strocov ◽  
...  
Keyword(s):  
X Ray ◽  
X Ray Scattering ◽  
Parity Conservation ◽  
Ray Scattering
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