Results 91 to 100 of about 50,138 (237)

PSEUDOSCALAR MESONS IN NUCLEAR MEDIUM [PDF]

open access: yesNuclear Many-Body and Medium Effects in Nuclear Interactions and Reactions, 2003
Invited talk at the Workshop "MEDIUM02", Kyushu, Oct.25 - 26 ...
openaire   +4 more sources

Chiral Kirigami for Bend‐Tolerant Reconfigurable Hologram with Continuously Variable Chirality Measures

open access: yesAdvanced Materials, Volume 36, Issue 30, July 25, 2024.
This work demonstrates that chirality‐guided pixelation of plasmonic kirigami sheets allows tunable multiplexed holography at terahertz (THz) frequencies. The slanted Au strips enable light modulation and real‐time switching of complex grayscale 3D images.
Won Jin Choi   +3 more
wiley   +1 more source

QUARK STRUCTURE OF PSEUDOSCALAR MESONS [PDF]

open access: yesInternational Journal of Modern Physics A, 2000
I review to which extent the properties of pseudoscalar mesons can be understood in terms of the underlying quark (and eventually gluon) structure. Special emphasis is put on the progress in our understanding of η–η′ mixing. Process-independent mixing parameters are defined, and relations between different bases and conventions are studied.
openaire   +2 more sources

QED effects in the pseudoscalar meson sector [PDF]

open access: yesJournal of High Energy Physics, 2016
We present results on the pseudoscalar meson masses from a fully dynamical simulation of QCD+QED. We concentrate particularly on violations of isospin symmetry. We calculate the $ ^+$-$ ^0$ splitting and also look at other isospin violating mass differences. We have presented results for these isospin splittings in arXiv:1508.06401 [hep-lat]. In this
Horsley, R   +12 more
openaire   +8 more sources

Excited scalar and pseudoscalar mesons in the extended linear sigma model

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
We present an in-depth study of masses and decays of excited scalar and pseudoscalar $${\bar{q}}q$$ q ¯ q states in the Extended Linear Sigma Model (eLSM). The model also contains ground-state scalar, pseudoscalar, vector and axial-vector mesons.
Denis Parganlija, Francesco Giacosa
doaj   +1 more source

Graph‐theoretical chirality measure and chirality–property relations for chemical structures with multiscale mirror asymmetries

open access: yesChirality, Volume 36, Issue 6, June 2024.
Chirality measures can be exceptionally difficult to calculate and reveal weak, if any, correlations with physical, chemical, and biological properties of chemical structures. Applying the concept of torsion in the framework of discrete mathematics to graph representations of molecular and nanoscale helicoids, we show that graph‐theoretical chirality ...
Minjeong Cha   +4 more
wiley   +1 more source

Role of vector and pseudoscalar mesons in understanding $1/2^-$ $N^*$ and $\Delta$ resonances

open access: yes, 2013
A study of nonstrange meson-baryon systems has been made with the idea of understanding the properties of the low-lying $1/2^-$ $N^*$ and $\Delta$ resonances.
Hosaka, A.   +3 more
core   +1 more source

The Combination of the Azimuthally and Radially Polarized Beams: Helicity and Momentum Densities, Generation, and Optimal Chiral Light

open access: yesAdvanced Photonics Research, Volume 5, Issue 5, May 2024.
In this work, the properties of the azimuthally radially polarized beam (ARPB), a superposition of azimuthally and radially polarized beams, are explored. Their phase difference is tuned to achieve an ARPB with optimal chirality density, that stems from purely longitudinal fields on the beam axis.
Albert Herrero‐Parareda   +1 more
wiley   +1 more source

Trace and Axial Anomalies on Equal Footing

open access: yesAdvances in High Energy Physics, 2020
We discussed that for some particular nonsupersymmetric theories, a generalized symmetry that includes both the scale and axial transformations and leads to a single current may contain also a pseudoscalar term. The method, inspired by the superconformal
Renata Jora
doaj   +1 more source

Electromagnetic properties of ground and excited state pseudoscalar mesons

open access: yes, 2005
The axial-vector Ward-Takahashi identity places constraints on particular properties of every pseudoscalar meson. For example, in the chiral limit all pseudoscalar mesons, except the Goldstone mode, decouple from the axial-vector current.
A. Höll   +11 more
core   +1 more source

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