Current quarks, constituent quarks, and symmetries of resonance decays

Journal Article · Mon Jan 01 04:00:00 EST 1973 · Nucl. Phys., B, v. B61, pp. 205-229

DOI:https://doi.org/10.1016/0550-3213(73)90359-3· OSTI ID:4388992

Hey, A J.G.; Rosner, J L; Weyers, J

The transformation between current'' quarks and constituent'' quarks recently suggwsted by Melosh is examined with respect to its predictions for pionic decays of resonances. It implies the use of SU (6)/sub w/ for classifying particle states but not for describing decay processes. Instead, pion emission proceeds via DELTA L/sub z/ = 0, plus or minus 1, where L is the internal ( quark'') orbital angular momentum. This decay symmetry is called SU (6)/sub w/ ( DELTA L/sub z/= 0, plus or minus 1). It is proven equi valent for any decay A yields B + pi (where A, B are arbitrary qq or qqq hadrons) to the /sup 3/P/sub 0/ quark-pair creation model for such decays, as formulated by Micu, Colglazier, Petersen and Rosner. The roles of final orbital angular momenta l and of SU (3) x SU (3) subgroups of SU (6)/sub w/ are also discussed, and some new predictions are made for decays of meson resonances below 1700 MeV. (auth)

• Research Organization: CERN, Geneva
• Sponsoring Organization: USDOE
• NSA Number: NSA-29-001496
• OSTI ID: 4388992
• Journal Information: Nucl. Phys., B, v. B61, pp. 205-229, Journal Name: Nucl. Phys., B, v. B61, pp. 205-229; ISSN NUPBB
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*BARYON RESONANCES-- DECAY
*MESON RESONANCES-- DECAY
*QUARK MODEL-- MESON RESONANCES
*SU-6 GROUPS-- MESON RESONANCES
N64330* --Physics (High Energy)--Particle Invariance Principles & Symmetry--Applications (Strong)
ORBITAL ANGULAR MOMENTUM
PIONS