Results 151 to 160 of about 66,365 (303)

Spin 1/2 one‐ and two‐particle systems in physical space without eigen‐algebra or tensor product

open access: yesMathematical Methods in the Applied Sciences, Volume 47, Issue 3, Page 1457-1470, February 2024.
Under the spin–position decoupling approximation, a vector with a phase in 3D orientation space endowed with geometric algebra substitutes the vector–matrix spin model built on the Pauli spin operator. The standard quantum operator‐state spin formalism is replaced with vectors transforming by proper and improper rotations in the same 3D space ...
Sokol Andoni
wiley   +1 more source

Some recent results for SU(3) and octonions within the geometric algebra approach to the fundamental forces of nature

open access: yesMathematical Methods in the Applied Sciences, Volume 47, Issue 3, Page 1471-1491, February 2024.
Different ways of representing the group SU(3)$$ SU(3) $$ within a Geometric Algebra approach are explored. As part of this, we consider characteristic multivectors for SU(3)$$ SU(3) $$ and how these are linked with decomposition of generators into commuting bivectors. The setting for this work is within a 6d Euclidean Clifford Algebra.
Anthony Lasenby
wiley   +1 more source

Pseudoscalar condensation induced by chiral anomaly and vorticity for massive fermions [PDF]

open access: yes, 2016
We derive the pseudoscalar condensate induced by anomaly and vorticity from the Wigner function for massive fermions in homogeneous electromagnetic fields. It has an anomaly term and a force-vorticity coupling term.
Ren-Hong Fang   +3 more
semanticscholar   +1 more source

The a0(980) in the single Cabibbo-suppressed process Λc → π0ηp

open access: yesPhysics Letters B, 2023
In this work, we have investigated the Cabibbo-suppressed process Λc→π0ηp, by taking into account the intermediate scalar state a0(980), which could be dynamically generated from the S-wave pseudoscalar-pseudoscalar interaction within the chiral unitary ...
Xue-Chao Feng   +4 more
doaj  

Systematizing the effective theory of self-interacting dark matter

open access: yesJournal of High Energy Physics, 2020
If dark matter has strong self-interactions, future astrophysical and cosmological observations, together with a clearer understanding of baryonic feedback effects, might be used to extract the velocity dependence of the dark matter scattering rate.
Prateek Agrawal   +2 more
doaj   +1 more source

Exploration of Wire Array Metamaterials for the Plasma Axion Haloscope

open access: yesAnnalen der Physik, Volume 536, Issue 1, January 2024.
Wire array metamaterials have been proposed as ideal resonators for dark matter searches at the very high masses predicted for the post‐inflation axion, offering the prospect of making resonators simultaneously of very high frequency and very large volume. A detailed exploration of the properties of such wire array metamaterials provides strong support
Mackenzie Wooten   +5 more
wiley   +1 more source

Asymmetric dark matter and baryogenesis from pseudoscalar inflation [PDF]

open access: yes, 2016
We show that both the baryon asymmetry of the Universe and the dark matter abundance can be explained within a single framework that makes use of maximally helical hypermagnetic fields produced during pseudoscalar inflation and the chiral anomaly in the ...
Yann Cado, Eray Sabancilar
semanticscholar   +1 more source

Distinguishing scalar from pseudoscalar Higgs production at the LHC

open access: yes, 2002
In this letter we examine the production channels for the scalar or pseudoscalar Higgs plus two jets at the CERN Large Hadron Collider (LHC). We identify possible signals for distinguishing between a scalar and a pseudoscalar Higgs boson.Comment: 7 pages,
A. Djouadi   +24 more
core   +1 more source

Sensitivity of Resonant Axion Haloscopes to Quantum Electromagnetodynamics

open access: yesAnnalen der Physik, Volume 536, Issue 1, January 2024.
The axion is a well‐motivated particle, which can also explain the existence of dark matter. Furthermore, if magnetic monopoles exist, interactions of electromagnetic fields with axions will be expanded from one parameter to three. In this article, new ways to search for axions are determined and a possible indirect way to determine if magnetically ...
Michael E. Tobar   +5 more
wiley   +1 more source

Decay Constant of Pseudoscalar Meson in the Heavy Mass Limit [PDF]

open access: yesarXiv, 1999
The leptonic decay constant of the pseudoscalar mesons a calculated by use of the relativistic constituent quark model constructed on the point form of Poincare-covariant quantum mechanics. We discuss the role relativistic corrections for decay constants of pseudoscalar mesons with heavy quarks.
arxiv  

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