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Prog. Theor. Phys. Vol. 50 No. 4 (1973) pp. 1347-1356

Differential Cross Section and N^* Spin Density Matrix of πN →πN^* and SU(6) ⊗O(3) Structure

Masanobu Hirano,^* Kenzō Iwata, Yasuo Matsuda, Tadashi Miyakoshi and Toshiyuki Murota

Department of Physics, Hokkaido University, Sapporo
^*Hokkaido University of Education, Sapporo

(Received April 23, 1973)

Abstract:

On the basis of the symmetric quark model, dσ/dt(πN →πN^*) and its N^* spin density matrix for N^* which lies on N_α and N_γ trajectories are calculated by using the Barger-Phillips πN →πN amplitudes as input. Agreement with experiment is satisfactory. It is predicted that the polarization distribution of the decay product N of N^* is determined mostly by the SU(6) structure of N^* and behaves quite differently depending on different SU(6) structures.

URL : http://ptp.ipap.jp/link?PTP/50/1347/
DOI : 10.1143/PTP.50.1347

[ Full Text PDF : FREE ACCESS (659K) ] Citation: Plain Text BiBTeX EndNote(RIS) RSS

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References:

1. M. Hisano, K. Iwata, Y. Matsuda and T. Murota, Prog. Theor. Phys. 49 (1973), 2047[PTP].
2. M. Hisano, K. Iwata, Y. Matsuda and T. Murota, Prog. Theor. Phys. 49 (1973), 934[PTP].
3. V. Barger and R. J. N. Phillips, Phys. Rev. 187 (1969), 2210[APS].
4. K. J. Foley et al., Phys. Rev. 181 (1969), 1775[APS].
5. D. Harting et al., Nuovo Cim. 38 (1965), 60.
6. E. W. Anderson et al., Phys. Rev. Lett. 25 (1970), 699[APS].
7. K. J. Foley et al., Phys. Rev. Lett. 19 (1969), 397[APS].
8. See, e.g., J. D. Jackson, High Energy Physics, Les Houches 1965, eds. C. de Witt and M. Jacob (Gordon and Breach), p. 327.
9. Y. T. Oh et al., Phys. Lett. B 42 (1972), 497[CrossRef].
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Citing Article(s) :

1. Progress of Theoretical Physics Vol. 51 No. 6 (1974) pp. 1801-1821 :

   Differential Cross Section and Polarization Effects in pp → pN^* and SU(6) ⊗O(3) Structure

   Masanobu Hirano, Kenzo Iwata, Yasuo Matsuda and Toshiyuki Murota

2. Progress of Theoretical Physics Vol. 52 No. 6 (1974) pp. 1841-1854 :

   πN→πΔ_δ Production by Single Quark Transition in SU(6) ⊗O(3) Structure

   Masanobu Hirano

3. Progress of Theoretical Physics Vol. 55 No. 3 (1976) pp. 777-791 :

   N^* →Nγ and Quark Model

   Yasuo Matsuda

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