Soft Pomeron in holographic QCD

• Tipo: Artigo em Revista Científica Internacional
• Data: 2016

Autores

Ballon Bayona, A (Autor) Outra; Quevedo, RC (Autor) Outra; Costa, MS (Autor) FCUP; Djuric, M (Autor) Outra

Revista

Título: Physical Review D

Vol. 93

ISSN: 2470-0010

Editora: American Physical Society

Indexação

ISI Web of Knowledge - 23 Citações

Scopus - 22 Citações

Outras Informações

ID Authenticus: P-00K-5J2

DOI: 10.1103/physrevd.93.035005

Abstract (EN): We study the graviton Regge trajectory in holographic QCD as a model for high energy scattering processes dominated by soft-Pomeron exchange. This is done by considering spin J fields from the closed string sector that are dual to glueball states of even spin and parity. In particular, we construct a model that governs the analytic continuation of the spin J field equation to the region of real J < 2, which includes the scattering domain of the negative Maldelstam variable t. The model leads to approximately linear Regge trajectories and is compatible with the measured values of 1.08 for the intercept and 0.25 GeV-2 for the slope of the soft Pomeron. The intercept of the secondary Pomeron trajectory is in the same region of the subleading trajectories, made of mesons, proposed by Donnachie and Landshoff, and should therefore be taken into account.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7