PoS - Proceedings of Science
Volume 310 - XVII International Conference on Hadron Spectroscopy and Structure (Hadron2017) - Posters
A study of the excited radial vector meson $\rho$
M. Piotrowska* and F. Giacosa
Full text: pdf
Pre-published on: February 19, 2018
Published on: March 20, 2018
Abstract
We study the strong and radiative decays of the radial
excitation of the $\rho$ meson, with quantum numbers $n$ $^{2S+1}L_{J}=2$
$^{3}S_{1},$ $I=1$, and denoted as $\rho_{E}$, by making use of an effective
model. We test different masses: $1.45$ GeV, corresponding to well known
assignment $\rho_{E}\equiv\rho(1450)$ state; $1.25$ GeV for the assignment $\rho
_{E}\equiv\rho(1250)$ (a resonance whose existence has not yet been
confirmed), and $1.35$ GeV, which lies just in the middle between them in
order to study the dependence of the results on the mass. The decay widths for
different decay processes and two branching ratios of the radially excited
meson $\rho_{E}$ were determined and compared to the experimental data
reported in the Particle Data Group.
DOI: https://doi.org/10.22323/1.310.0237
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