Strong decays of higher baryons in a quark model

Katyal, D. L. ; Mitra, A. N. (1968) Strong decays of higher baryons in a quark model Physical Review, 169 (5). pp. 1322-1329. ISSN 0031-899X

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An SU(6)×O(3) model of baryons, which had earlier been used by Mitra and Ross for the evaluation of the strong decay widths of negative parity (70,1-) baryons, is now extended to higher-lying baryonic states assumed to belong to the (56,2+) and (70,3-) representations, as Regge recurrences of the supermultiplets (56,0+) and (70,1-), respectively. Four different classes of supermultiplet transitions are examined. For the transitions (56,2+) → (56,0+), the results are in broad agreement with experiment, as well as those of SU(6)W and previous quark-model calculations. For the transitions (56,2+) → (56,2+) and (56,2+) → (70,1-), appreciable widths are predicted for several experimentally observable states, the first type being geometrically related to the N*Nπ coupling constant, and the second type being shown to involve a symmetry transition of only one unit (from symmetric to mixed symmetric wave functions). Results are also given for transitions from (70,3-) states.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:34679
Deposited On:09 Apr 2011 07:11
Last Modified:09 Apr 2011 07:11

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