Results 151 to 160 of about 1,684,231 (310)

Pion transition form factor in the Regge approach and incomplete vector-meson dominance [PDF]

open access: yes, 2010
The concept of incomplete vector-meson dominance and Regge models is applied to the transition form factor of the pion. First, we argue that variants of the chiral quark model fulfilling the chiral anomaly may violate the Terazawa-West unitarity bounds ...
E. Arriola, W. Broniowski
semanticscholar   +1 more source

Understory Plant Community Response to a Range of Restoration Scenarios in Northeast US Pitch Pine (Pinus rigida) Barrens

open access: yesApplied Vegetation Science, Volume 28, Issue 3, July/September 2025.
Understory plant communities in pitch pine (Pinus rigida) barrens show distinct species abundance and structural attributes associated with different restoration strategies. We investigated the impacts of four management approaches, along with untreated control sites across four states in the Northeast United States.
Kathleen A. Stutzman   +2 more
wiley   +1 more source

Zero temperature properties of mesons in a vector meson extended linear sigma model

open access: yesEPJ Web of Conferences, 2011
A three flavor linear sigma model with vector and axial-vector mesons is discussed. Preliminary results concerning on the symmetry breaking pattern, the question of parameterization, as well as the resulting meson masses are presented.
Giacosa F.   +3 more
doaj   +1 more source

Multi-Skyrmions with vector mesons [PDF]

open access: yesPhysical Review D, 2009
Version to appear in Phys.
openaire   +3 more sources

Vector meson dominance and polarization

open access: yesNuclear Physics B, 1968
Abstract The vector dominance model relates amplitudes for reactions induced by photons (e.g., ifπ-production from nucleons) to amplitudes for reactions induced by vector mesons. In the applications of such relations one conventionally assumes that the vector mesons have to be polarized transversely with respect to the c.m. system.
FRAAS, H, Schildknecht, Dieter
openaire   +3 more sources

Glueball enhancements in p(gamma,VV)p through vector meson dominance

open access: yes, 2004
Double vector meson photoproduction, p(gamma, G -> VV)p, mediated by a scalar glueball G is investigated. Using vector meson dominance (VMD) and Regge/pomeron phenomenology, a measureable glueball enhancement is predicted in the invariant VV = rho rho ...
B. Lucini   +9 more
core   +1 more source

Coupling vector and pseudoscalar mesons to study baryon resonances

open access: yes, 2011
A study of meson-baryon systems with total strangeness -1 is made within a framework based on the chiral and hidden local symmetries. These systems consist of octet baryons, pseudoscalar and vector mesons.
Hosaka, A.   +4 more
core   +1 more source

Light Vector Meson Spectroscopy [PDF]

open access: yes, 2001
The current situation for vector meson spectroscopy is outlined, and it is shown that the data are inconsistent with the generally-accepted model for meson decay. A possible resolution in terms of exotic (hybrid) mesons is given. Although this hypothesis
Donnachie, A
core   +1 more source

Vacuum Properties of Mesons in a Linear Sigma Model with Vector Mesons and Global Chiral Invariance

open access: yes, 2010
We present a two-flavour linear sigma model with global chiral symmetry and vector and axial-vector mesons. We calculate pion-pion scattering lengths and the decay widths of scalar, vector, and axial-vector mesons.
D. Lurie   +10 more
core   +1 more source

Recent ATLAS results in the field of meson physics

open access: yesEPJ Web of Conferences, 2014
Recent results on flavor physics are presented, using data from the ATLAS detector. The ϓ(nS) and charmonium inclusive production cross sections are discussed. J/ψ production associated with a W vector boson is presented.
Wang Rui
doaj   +1 more source

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