Light-Front Spin-1 Model: Parameters Dependence
Clayton S. Mello (1,2), Anac\'e N. da Silva (1), J. P.B. C. de Melo, (1), T. Frederico (1) ((1) Laborat\'orio de F\'isica Te\'orica e, Computacional, Universidade Cruzeiro do Sul, S\~ao Paulo, Brazil, (2), Instituto Tecnol\'ogico de Aeron\'autica, S\~ao Jos\'e dos Campos, Brazil)
TL;DR
This paper develops a light-front model for the $ ho$-meson using constituent quarks, calculating electroweak properties without zero mode ambiguities, and compares results with existing models.
Contribution
It introduces a zero-mode free, covariant light-front model for the $ ho$-meson and provides detailed electroweak observable calculations.
Findings
Decay constant close to experimental value
Model parameters yield realistic charge radius
Electroweak moments consistent with literature
Abstract
We study the structure of the -meson within a light-front model with constituent quark degrees of freedom. We calculate electroweak static observables: magnetic and quadrupole moments, decay constant and charge radius. The prescription used to compute the electroweak quantities is free of zero modes, which makes the calculation implicitly covariant. We compare the results of our model with other ones found in the literature. Our model parameters give a decay constant close to the experimental one.
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