research in particle physics

abstract p3a-2005-005

Seven at one blow: the mass system of the Theta(+) baryons [pdf]

Authors: Paolo Palazzi (e-mail)
Date: 2005-08-11
Subject: Particle Physics - Phenomenology
Comments: 4 pages, 2 figures

Several Theta(+) exotic baryon candidates have recently been identified using data from the JINR propane bubble chamber. The pK(0)short invariant mass spectrum shows seven resonant structures ranging from 1487 to 1980 MeV/c^2, including the already established Theta(1540)(+). In the present work the masses of the seven resonances are found to be equally spaced by about 70 MeV/c^2. This regularity is statistically relevant, and is compatible with an overall particle mass quantization scheme.


12.40.Yx Hadron mass models and calculations
14.20.-c Baryons

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original v1: 2005-08-11 [pdf, 126 kb ]