- Physical Review Journals
All JournalsPhysics Magazine
Access Provided by Xinjiang University

Physical Review D

Export citation

Export citation

Choose format for download:

Download Citation
  • Access by Xinjiang University

Global analysis of the negative parity nonstrange baryons in the 1/Nc expansion

E. Gonzalez de Urreta1,2, J. L. Goity3,4, and N. N. Scoccola1,2,5

  • 1Department of Theoretical Physics, Comisión Nacional de Energía Atómica, 1429 Buenos Aires, Argentina
  • 2CONICET, Rivadavia 1917, (1033) Buenos Aires, Argentina
  • 3Department of Physics, Hampton University, Hampton, Virginia 23668, USA
  • 4Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
  • 5Universidad Favaloro, Solís 453, 1078 Buenos Aires, Argentina

PDF

Phys. Rev. D 89, 034024 – Published 20 February, 2014

DOI: https://doi.org/10.1103/PhysRevD.89.034024

Abstract

A global study of the negative parity nonstrange baryon observables is performed in the framework of the 1/Nc expansion. Masses, partial decay widths and photo couplings are simultaneously analyzed. A main objective is to determine the composition of the spin 12 and 32 nucleon states, which come in pairs and involve two mixing angles which can be determined and tested for consistency by the mentioned observables. The issue of the assignment of those nucleon states to the broken SU(4)×O(3) mixed-symmetry multiplet is studied in detail, with the conclusion that the assignment made in the old studies based on the nonrelativistic quark model is the preferred one. In addition, the analysis involves an update of the input data with respect to previous works.

View figure in article

See Also

Decays of nonstrange positive parity excited baryons in the 1/Nc expansion

J. L. Goity and N. N. Scoccola
Phys. Rev. D 72, 034024 (2005)

Article Text

References (29)

  1. J. Beringer et al. (Particle Data Group Collaboration), Phys. Rev. D 86, 010001 (2012).
  2. F. E. Close, An Introduction to Quarks and Partons (Academic Press, London, 1979).
  3. C. E. Carlson, C. D. Carone, J. L. Goity, and R. F. Lebed, Phys. Lett. B 438, 327 (1998).
  4. C. E. Carlson, C. D. Carone, J. L. Goity, and R. F. Lebed, Phys. Rev. D 59, 114008 (1999).
  5. J. L. Goity, C. Schat, and N. Scoccola, Phys. Rev. D 71, 034016 (2005).
  6. N. N. Scoccola, J. L. Goity, and N. Matagne, Phys. Lett. B 663, 222 (2008).
  7. G. t’Hooft, Nucl. Phys., B75, 461 (1974); E. Witten, B160, 57 (1979).
  8. J.-L. Gervais and B. Sakita, Phys. Rev. Lett. 52, 87 (1984).
  9. J.-L. Gervais and B. Sakita, Phys. Rev. D 30, 1795 (1984).
  10. R. F. Dashen and A. V. Manohar, Phys. Lett. B 315, 425 (1993).
  11. R. F. Dashen and A. V. Manohar, Phys. Lett. B 315, 438 (1993).
  12. B. Lucini and M. Panero, Phys. Rep. 526, 93 (2013).
  13. C. D. Carone, H. Georgi, L. Kaplan, and D. Morin, Phys. Rev. D 50 5793 (1994).
  14. C. E. Carlson and C. D. Carone, Phys. Rev. D 58 053005 (1998); Phys. Lett. B 441 363 (1998).
  15. C. L. Schat, J. L. Goity, and N. N. Scoccola, Phys. Rev. Lett. 88, 102002 (2002); J. L. Goity, C. L. Schat, and N. N. Scoccola, Phys. Rev. D 66, 114014 (2002).
  16. T. D. Cohen and R. F. Lebed, Phys. Rev. Lett. 91, 012001 (2003); Phys. Rev. D 67, 096008 (2003); 68, 056003 (2003); T. D. Cohen, D. C. Dakin, A. Nellore, and R. F. Lebed, 69, 056001 (2004); T. D. Cohen, D. C. Dakin, R. F. Lebed, and D. R. Martin, 71, 076010 (2005); T. D. Cohen and R. F. Lebed, Phys. Lett. B 619, 115 (2005); Phys. Rev. D 72, 056001 (2005).
  17. N. Matagne and F. Stancu, Phys. Rev. D 71, 014010 (2005); Phys. Lett. B 631, 7 (2005); Phys. Rev. D 73, 114025 (2006); 84, 056013 (2011); 85, 116003 (2012); 86, 076007 (2012).
  18. J. L. Goity, C. Schat, and N. N. Scoccola, Phys. Lett. B 564, 83 (2003); J. L. Goity and N. N. Scoccola, Phys. Rev. D 72, 034024 (2005); Phys. Rev. Lett. 99, 062002 (2007); J. L. Goity, C. Jayalath and N. N. Scoccola, Phys. Rev. D 80, 074027 (2009); C. Jayalath, J. L. Goity, E. Gonzalez de Urreta, and N. N. Scoccola, 84, 074012 (2011).
  19. J. L. Goity, Yad. Fiz. 68, 655 (2005); [Phys. At. Nucl., 68, 624 (2005)].
  20. R. Koniuk and N. Isgur, Phys. Rev. D 21, 1868 (1980); 23, 818(E) (1981).
  21. D. Pirjol and C. Schat, Phys. Rev. D 67, 096009 (2003).
  22. A. R. Edmonds, Angular Momentum in Quantum Mechanics (Princeton University Press, Princeton, 1974).
  23. R. F. Dashen, E. E. Jenkins, and A. V. Manohar, Phys. Rev. D 51, 3697 (1995).
  24. J. L. Goity, Phys. Lett. B, 414, 140 (1997).
  25. A. V. Manohar, At the Frontier of Particle Physics, edited by M. Shifman (World Scientific, Singapore, 2001), Vol. 1, p. 507.
  26. N. Isgur and G. Karl, Phys. Lett. B 72, 109 (1977).
  27. N. Isgur and G. Karl, Phys. Rev. D 18, 4187 (1978).
  28. R. G. Moorhouse, Phys. Rev. Lett. 16 772 (1966).
  29. D. Faiman and D. E. Plane, Nucl. Phys. B50, 379 (1972); A. J. G. Hey, P. J. Litchfield, and R. J. Cashmore, B95, 516 (1975).

Outline

Information

Phys. Rev. D 89, 034024– Published 20 February, 2014
  • Received 13 November 2013

© 2014 American Physical Society

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation