The ψ-particles in an SU4 scheme with anomalous currents

Das, T. ; Divakaran, P. P. ; Pandit, L. K. ; Singh, Virendra (1975) The ψ-particles in an SU4 scheme with anomalous currents Pramana - Journal of Physics, 4 (3). pp. 105-129. ISSN 0304-4289

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The recently discovered narrow peaks (the ψ-particles) in e+e- system at 3.105 and 3.695 GeV are interpreted as hadrons in a broken SU4 symmetry scheme. A new additional additive quantum number, paracharge Z, is combined with the usual SU3 quantum numbers in the group SU4. The ψ (3.1) is assigned to a near ideally mixed 15̲⊕1̲ multiplet of vector mesons (containing the ρ) as the I=Y=0, charge conjugation C=-combination of Z=±1.members. The ψ (3.7) is assigned correspondingly to another mixed 15̲⊕1̲ multiplet containing the ρ' (1600). The hadronic electromagnetic interactions are modified by the addition of (non-minimal) anomalous pieces that can change Z. The decays of the ψ-particles are discussed. New enlarged SU4 multiplets of other hadrons are proposed. Tests of our scheme are put forward. The most crucial test will be the observation of two rather broad resonances in e+e- collisions with masses around 4.2 GeV and 5.1 GeV. Another prediction is the presence of energetic photons in the decays of the ψ-particles. Important results concerning the recently observed phenomena in the process e+e-→ hadrons follow in this scheme.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:ψ-particles; Paracharge; SU4 Symmetry; Anomalous Currents; e+e- Annihilation
ID Code:38256
Deposited On:25 Apr 2011 12:05
Last Modified:17 May 2016 21:10

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