| Issue |
EPJ Web of Conferences
Volume 37, 2012
MESON 2012 – 12th International Workshop on Production, Properties and Interaction of MESONS
|
|
|---|---|---|
| Article Number | 09024 | |
| Number of page(s) | 3 | |
| Section | Posters | |
| DOI | https://doi.org/10.1051/epjconf/20123709024 | |
| Published online | 06 December 2012 | |
https://doi.org/10.1051/epjconf/20123709024
Radial and angular-momentum Regge trajectories: a systematic approach
1 Departamento de Física Teórica y del Cosmos and CAFPE, Universidad de Granada, E-18071 Granada, Spain
2 Departamento de Física Atómica, Molecular y Nuclear and Instituto Carlos I de Física Teórica y Computacional, Universidad de Granada, E-18071 Granada, Spain
3 The H. Niewodniczanski Institute of Nuclear Physics, PL-31342 Kraków, Poland
4 Institute of Physics, Jan Kochanowski University, PL-25406 Kielce, Poland
a e-mail: masjuan@ugr.es
We present the analysis of Ref. [1] of the radial (n) and angular-momentum (J) Regge trajectories for all light-quark meson states listed in the Particle Data Tables. The parameters of the trajectories are obtained with linear regression, with weight of each resonance inversely proportional to its half-width squared, (Γ/2)2. The joint analysis in the (n, J, M2) Regge plane indicates, at the 4.5 standard deviation level, that the slopes in n are larger from the slopes in J. Thus no strict universality of slopes occurs in the light non-strange meson sector. We also extend our analysis to the kaon sector.
Supported by MICINN of Spain (FPA2006-05294), CPAN (CSD2007- 00042), Junta de Andalucía (FQM 101, FQM 437, FQM 225, and FQM 022), by the Deutsche Forschungsgemeinschaft DFG through the Collaborative Research Center “The Low-Energy Frontier of the Standard Model” (SFB 1044), by Polish Ministry of Science and Higher Education, grant N N202 263438, and by National Science, grant DEC-2011/01/D/ST2/00772.
© Owned by the authors, published by EDP Sciences, 2012
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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