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Rodas Bilbao, Arkaitz
(2016)
*Calculation of regge trajectories of strange resonances and identification of the k-0*(800) as a non-ordinary meson.*
Acta physica polonica B Proceedings supplement, 9
(3).
pp. 453-458.
ISSN 1899-2358

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Official URL: http://dx.doi.org/10.5506/APhysPolBSupp.9.453

## Abstract

We review how the Regge trajectory of an elastic resonance can be obtained just from its pole position and coupling, using a dispersive formalism. This allows us to deal correctly with the finite widths of resonances in Regge trajectories. In this way, we can calculate the Regge trajectories for the K* (892), K_1(1400) and K_(0)^(*)(1430), obtaining ordinary linear Regge trajectories, expected for qq resonances. In contrast, for the K_(0)^(*)(800) meson, the resulting Regge trajectory is non-linear and with much smaller slope, strongly supporting its non-ordinary nature.

Item Type: | Article |
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Additional Information: | © Polska Akademia Nauk, Instytut Fizyki. |

Uncontrolled Keywords: | Poles |

Subjects: | Sciences > Physics > Physics-Mathematical models Sciences > Physics > Mathematical physics |

ID Code: | 41876 |

Deposited On: | 27 Mar 2017 16:58 |

Last Modified: | 10 Dec 2018 15:09 |

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