Results 41 to 50 of about 1,110 (184)

Veneziano's Model for Pseudoscalar-Pseudoscalar Scattering, Factorization and the Nonet Ansatz [PDF]

open access: yesProgress of Theoretical Physics, 1969
Crossing·symmetric, Regge behaved amplitudes of the Veneziano type are constructed for Ps-Ps scattering, where Ps denotes the pseudoscalar meson octet. Factorization of the parent and the first (odd) daughter Regge trajectories is investigated in detail.
openaire   +1 more source

Exact formula of the spectrum of the pseudoscalar octet

open access: yesPhysics Letters B, 2015
Non-perturbative proof is presented of a generalized version of Goldstone theorem, where the Lagrangian conserves an approximate SU(3) chiral symmetry, that both quark masses and electromagnetism make contributions to the masses of spinless particles of ...
R. Ling, B.L. Li, J.L. Ping
doaj   +1 more source

Geometric Stabilization of Biomolecular Chirality in Open Systems

open access: yesChirality, Volume 38, Issue 6, June 2026.
Entropic topology favors orientation‐preserving deformations in molecular configuration space, leading to a spontaneous statistical bias toward right‐handed α$$ \alpha $$‐helices. The figure illustrates how configurations with positive determinant (dextral) occupy a larger accessible volume of microstates, providing a purely geometric‐entropic ...
Vicente Domínguez‐Arca
wiley   +1 more source

Radiative Decay Widths of Ground and Excited States of Vector Charmonium and Bottomonium

open access: yesAdvances in High Energy Physics, 2017
We study the radiative decay widths of vector quarkonia for the process of J/ψ(nS)→ηc(nS)γ and Υ(nS)→ηb(nS)γ (for principal quantum numbers n=1,2,3) in the framework of Bethe-Salpeter equation under the covariant instantaneous ansatz using a 4×4 form of ...
Hluf Negash, Shashank Bhatnagar
doaj   +1 more source

Poincaré-covariant quark model of electroweak light mesons decays [PDF]

open access: yesEPJ Web of Conferences, 2019
The procedure for obtaining the radiative decay constants of pseudoscalar and vector unflavored mesons in point–form of Poincaré-invariant quantum mechanics is presented.
Andreev Viktor, Haurysh Vadzim
doaj   +1 more source

Pseudoscalar portal dark matter

open access: yesPhysical Review D, 2015
v2: added references, fermi dwarf constraints added to ...
Berlin, Asher   +3 more
openaire   +3 more sources

Photonics of Topological Magnetic Textures

open access: yesAdvanced Optical Materials, Volume 14, Issue 13, 3 April 2026.
Localized noncollinear magetic textures imprint their geometry and topology onto traversing photonic fields endowing them with orbital angular‐momentum, chirality, and magnetoelectric densities. Abstract Topological textures in magnetically ordered materials are an important case studies for fundamental research with promising applications in data ...
Vakhtang Jandieri   +6 more
wiley   +1 more source

On the Effective Hamiltonian for Pseudoscalar Meson with Pseudoscalar Coupling with Nucleon [PDF]

open access: yesProgress of Theoretical Physics, 1954
The method of canonical transformation is applied to the pseudo-scalar meson theory with pseudoscalar coupling. It will be shown that tbe Tanj1)-Foldy~) transformation results as the best one when regarded as a variational function among the similar family of transformation.
Akiba, Tomoya, Sawada, Katuro
openaire   +2 more sources

Quantum Chemistry Investigation of Linear and Nonlinear (chir)optical Properties of Oligoamide Foldamers

open access: yesChemistryEurope, Volume 4, Issue 4, April 2026.
The linear and nonlinear (chir)optical properties of four oligoamide foldamers with different donor groups are studied by means of time‐dependent density functional theory calculations. It is shown that stronger donors yield larger hyperpolarizabilities due to low‐lying charge–transfer states. The agreement with the experiments concerning the key bands
Komlanvi Sèvi Kaka   +5 more
wiley   +1 more source

Properties of flavour-singlet pseudoscalar mesons from lattice QCD

open access: yesEPJ Web of Conferences, 2017
We report on the status of the determination of properties of flavour-singlet pseudoscalar mesons using Wilson twisted mass lattice QCD at maximal twist.
Urbach Carsten
doaj   +1 more source

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