Total decay widths of resonance and Regge trajectories

Journal Article · Fri Jun 01 04:00:00 EDT 1973 · Progr. Theor. Phys. (Kyoto), v. 49, no. 6, pp. 2037-2046

DOI:https://doi.org/10.1143/PTP.49.2037· OSTI ID:4377047

Kobayashi, R

The compatibility of the imaginary parts of baryon Regge trajectories alpha (u) with the almost linearly rising feature of Re alpha (u) is investigated. Corrections to Re alpha (u) due to nonvanishing Im alpha (u), which is estimated from the total decay widths of resonances lying on the leading trajectories, are calculated in a phenomenological way through dispersion relations with unitarity cuts only. It is found that Im alpha (u) must decrease when u becomes large in order to maintain the deviation of Re alpha (u) from linearity small in the low energy region. A brief discussion on meson trajectories is also presented. (auth)

• Research Organization: Kyoto Univ.
• NSA Number: NSA-29-008820
• OSTI ID: 4377047
• Journal Information: Progr. Theor. Phys. (Kyoto), v. 49, no. 6, pp. 2037-2046, Journal Name: Progr. Theor. Phys. (Kyoto), v. 49, no. 6, pp. 2037-2046; ISSN PTPKA
• Country of Publication: Japan
• Language: English

Related Subjects

*BARYON RESONANCES-- DECAY
*BARYONS-- REGGE TRAJECTORIES
*MESONS-- REGGE TRAJECTORIES
CORRECTIONS
DISPERSION RELATIONS
N64250 --Physics (High Energy)--Particle Interactions & Properties (Theoretical)--Strong (Baryon No. = 0)
N64260* --Physics (High Energy)--Particle Interactions & Properties (Theoretical)--Strong (Baryon No. = 1)
PARTICLE WIDTHS
UNITARITY