SU(4) symmetry and meson-baryon processes in a quark model

Dipak K. Barkakati; D. K. Choudhury

doi:10.1103/PhysRevD.28.136

Access by Xinjiang University

SU(4) symmetry and meson-baryon processes in a quark model

Dipak K. Barkakati^* and D. K. Choudhury

Department of Physics, University of Gauhati, Gauhati-781 014, Assam, India

^*On leave from Pachhunga University College, Aizawal-796 001, India.

PDF

Phys. Rev. D 28, 136 – Published 1 July, 1983

DOI: https://doi.org/10.1103/PhysRevD.28.136

Abstract

We evaluate the $PQ \to PQ$ and $PQ \to VQ$ ( $P = pseudoscalar meson$ , $V = vector meson$ , $Q = quark$ ) amplitudes within the $QQ \bar{Q}$ model proposed by Mitra assuming SU(4) as the relevant internal symmetry. Compared with SU(3), a different combination of the residues of the spectator functions is found to appear in the meson-quark amplitudes. We also show the structures of the amplitudes and their connections with relevant cross sections for various meson-baryon processes assuming SU(4) symmetry. Predictions for charmed-meson production are made. Possible symmetry-breaking effects are also discussed.

References (18)

R. H. Dalitz, in Quark Sub-structure for Mesonic and Baryonic States, proceedings of the 1966 Tokyo Summer School, edited by G. Takeda and A. Fujii (Syokabo, Tokyo and Benjamin, New York, 1967), Part II, p. 56 H. Fritzsch and M. Gell-Mann, in Proceedings of the XVI International Conference on High Energy Physics, Chicago-Batavia, Ill., 1972, edited by J. D. Jackson and A. Roberts (NAL, Batavia, Ill., 1973), Vol. 2, p. 135
S. Glashow, J. Illiopoulous, and G. Maiani, Phys. Rev. D 2, 1285 (1970)
J. J. Aubert et al., Phys. Rev. Lett. 33, 1406 (1974) C. Bacci et al., ibid. 33, 1408 (1974) G. S. Abrams et al., ibid. 33, 1453 (1974)
A. N. Mitra, Phys. Rev. 167, 1382 (1968)
C. Bacchi and G. Morpurgo, Phys. Rev. 149, 1284 (1966)
G. C. Joshi, V. S. Bhasin, and A. N. Mitra, Phys. Rev. 156, 1572 (1967)
S. Das Gupta and A. N. Mitra, Phys. Rev. 156, 1581 (1967)
A. N. Mitra and M. H. Ross, Phys. Rev. 158, 1630 (1967)
A. N. Mitra and P. P. Srivastava, Phys. Rev. 164, 1803 (1967)
S. Das Gupta, V. K. Gupta, and A. N. Mitra, Phys. Rev. 172 1482 (1968)
D. K. Choudhury and V. K. Gupta, Phys. Rev. 181, 2101 (1969)
D. K. Choudhury, Phys. Rev. D 1, 2135 (1970)
J. Daboul, Nucl. Phys. B7, 651 (1968)
N. S. Thornber, Phys. Rev. 176, 1998 (1968)
A. C. Irving and R. P. Worden, Phys. Rep. 34, 117 (1977)
P. Girtler et al., Nucl. Phys. B 159, 397 (1979)
V. Flaminio et al., Report No. CERN-HERA 79-01, 1979 (unpublished)
B. Chaurand et al., Nucl. Phys. B117, 1 (1976)

[c1] R. H. Dalitz, in Quark Sub-structure for Mesonic and Baryonic States, proceedings of the 1966 Tokyo Summer School, edited by G. Takeda and A. Fujii (Syokabo, Tokyo and Benjamin, New York, 1967), Part II, p. 56 H. Fritzsch and M. Gell-Mann, in Proceedings of the XVI International Conference on High Energy Physics, Chicago-Batavia, Ill., 1972, edited by J. D. Jackson and A. Roberts (NAL, Batavia, Ill., 1973), Vol. 2, p. 135

[c2] S. Glashow, J. Illiopoulous, and G. Maiani, Phys. Rev. D 2, 1285 (1970)

[c3] J. J. Aubert et al., Phys. Rev. Lett. 33, 1406 (1974) C. Bacci et al., ibid. 33, 1408 (1974) G. S. Abrams et al., ibid. 33, 1453 (1974)

[c4] A. N. Mitra, Phys. Rev. 167, 1382 (1968)

[c5] C. Bacchi and G. Morpurgo, Phys. Rev. 149, 1284 (1966)

[c6] G. C. Joshi, V. S. Bhasin, and A. N. Mitra, Phys. Rev. 156, 1572 (1967)

[c7] S. Das Gupta and A. N. Mitra, Phys. Rev. 156, 1581 (1967)

[c8] A. N. Mitra and M. H. Ross, Phys. Rev. 158, 1630 (1967)

[c9] A. N. Mitra and P. P. Srivastava, Phys. Rev. 164, 1803 (1967)

[c10] S. Das Gupta, V. K. Gupta, and A. N. Mitra, Phys. Rev. 172 1482 (1968)

[c11] D. K. Choudhury and V. K. Gupta, Phys. Rev. 181, 2101 (1969)

[c12] D. K. Choudhury, Phys. Rev. D 1, 2135 (1970)

[c13] J. Daboul, Nucl. Phys. B7, 651 (1968)

[c14] N. S. Thornber, Phys. Rev. 176, 1998 (1968)

[c15] A. C. Irving and R. P. Worden, Phys. Rep. 34, 117 (1977)

[c16] P. Girtler et al., Nucl. Phys. B 159, 397 (1979)

[c17] V. Flaminio et al., Report No. CERN-HERA 79-01, 1979 (unpublished)

[c18] B. Chaurand et al., Nucl. Phys. B117, 1 (1976)

Physical Review D

Export citation

Export citation

SU(4) symmetry and meson-baryon processes in a quark model

Abstract

References (18)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation