Results 101 to 110 of about 51,008 (236)

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

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

The decays of $$\bar{B}^0$$ B¯0 , $$\bar{B}^0_s$$ B¯s0 and $$B^-$$ B- into $$\eta _c$$ ηc plus a scalar or vector meson

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We investigate the decays of $$\bar{B}^0_s$$ B¯s0 , $$\bar{B}^0$$ B¯0 and $$B^-$$ B- into $$\eta _c$$ ηc plus a scalar or vector meson in a theoretical framework by taking into account the dominant process for the weak decay of $$\bar{B}$$ B¯ meson into $
Ju-Jun Xie, Gang Li
doaj   +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

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

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

Exploring solutions to the muon g-2 anomaly in a 3-3-1 model under flavor constraints

open access: yesEuropean Physical Journal C: Particles and Fields
The magnetic moment of the muon can receive significant two-loop contributions from a light pseudoscalar. Notably, the spectrum of scalars of 3-3-1 models includes one pseudoscalar.
A. Doff   +2 more
doaj   +1 more source

Charge form factors of pseudoscalar mesons [PDF]

open access: yesPhysical Review D, 1994
18 pages, ReVTeX, 6 figures included, SLAC-PUB ...
openaire   +3 more sources

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