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Spectra and hadronic couplings of light hermaphrodite mesons

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Zeitschrift für Physik C Particles and Fields

Abstract

We clarify the discrepancies of previous results for the masses and decay amplitudes of hermaphrodite mesons obtained from QCD sum rules. We study the case of the strange quark within a light quark expansion formalism. We find tht the hermaphrodite masses are much higher than the ones of their ordinary meson partners. Our values of the set of masses and continuum thresholds are compared with some other sum rule results. We analyze the hadronic couplings of the isovector 1−+ exotic hermaprodite\(\tilde \rho \) using a three-point function sum rule evaluated at the symmetric euclidean point. We find that the\(\tilde \rho \) can be very broad and prefers to decay into ρπ andK * K. Its most characteristic decays are the ones into πγ, ηπ and μ′π. The former and the latter are of the order of (3∼8) MeV.

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References

  1. C.E. Carlson, T.H. Hanson, C. Peterson: Phys. Rev.D27, 1956 (1983); M. Chanowitz, S. Sharpe: Nucl. Phys.B222, 211 (1983); K. Johnson: Talk given at the Desy Workshop (1983); C.E. De tar, J.F. Donoghue: Ann. Rev. Nucl. Sci.33 (1983); R. Jaffe, K. Johnson: Phys. Lett.60B, 301 (1976). For a review, see e.g.: F.E. Close: Proc. Int. Europhys. Conf. on High. Energy Phys., Brighton (1983) 361; T.H. Hanson, Proc. Non-Perturb. Methods (Montpellier 1985)

    Google Scholar 

  2. J.M. Cronwall, A. Soni: Phys. Lett.120B, 431 (1983); T. Barnes: Z. Phys. C—Particles and Fields10, 275 (1981)

    Google Scholar 

  3. J. Ellis, J. Lanik: Phys. Lett.150B, 289 (1985) and references therein; M.A. Shifman: Z. Phys. C—Particles and Fields9, 347 (1981); H. Gomm, J. Schechter: Phys. Lett.158B, 449 (1985)

    Google Scholar 

  4. V.A. Novikov, M.A. Shifman, A.I. Vainshtein, V.I. Zakharov: Nucl. Phys.B191, 301 (1981); S. Narison: Z. Phys. C—Particles and Fields26, 209 (1984)

    Google Scholar 

  5. See e.g.: M. Teper: Proc. Non-Perturb. Methods (Montpellier 1985)

  6. T. Barnes F.E. Close: Phys. Lett.116B, 365 (1982); M. Chanowitz, S. Sharpe: Nucl. Phys.B222, 211 (1983); N. Isgur, J. Paton: Phys. Lett.124B, 247 (1983); F de Viron J. Weyers: Nucl. Phys.B185, 391 (1981)

    Google Scholar 

  7. J.M. Cronwall, S.F. Tuan: Phys. Lett.136B, 110 (1984)

    Google Scholar 

  8. I.I. Balitsky, D.I. D'Yakonov, A.V. Yung: Phys. Lett.112B, 71 (1982); I.I. Balitsky et al.: Sov. J. Nucl. Phys.35, 761 (1982); J. Govaerts, F. de Viron, D. Gusbin, J. Weyers: Phys. Lett.128B, 262 (1983)

    Google Scholar 

  9. J. Govaerts et al.: Nucl. Phys.B248, 1 (1984)

    Google Scholar 

  10. J.I. Latorre, S. Narison, P. Pascual, R. Tarrach: Phys. Lett.147B, 169 (1984)

    Google Scholar 

  11. For reviews, see some contributions in the Workshop on Non-perturbative Methods (Montpellier July 1985) and: L.J. Reinders, H. Rubinstein, S. Yazaki: Phys. Rep.127, 1 (1985); B.L. Ioffe: Talk given at the International Conference in High Energy Phys, Leipzig (1984); M.A. Shifman: Talk given at the Intern. Conf at Bonn (1981); E.V. Shuryak: Phys. Rep.115C, 151 (1984); E. de Rafael: Talk given at the Dubrovnik school (1984); S. Narison: Talk given at the Intern. Conf. in High Energy Phys. Leipzig (1984) and at the LEAR Worskhop, p. 297. Tignes (1985)

    Google Scholar 

  12. M.A. Shifman, A.I. Vainshtein, V.I. Zakharov: Nucl. Phys.B147, 385 (1979)

    Google Scholar 

  13. J. Schwinger: Particles sources and fields: New York, Addison Wesley 1970; M.A. Shifman: Nucl. Phys.B173, 13 (1980); C. Cronström: Phys. Lett.90B, 267 (1980)

    Google Scholar 

  14. T. Pich, E. de Rafael: Phys. Lett.158B, 477 (1985); Proc. Non Perturb. Methods (Montpellier 1985)

    Google Scholar 

  15. J.S. Bell, R.A. Bertlmann: Nucl. Phys.B177, 218 (1981); R.A. Bertlmann: Acta Phys. Austr.53, 305 (1981)

    Google Scholar 

  16. N.V. Krasnikov, A.A. Pivovarov, N.N. Tavkhelidze: Z. Phys. C—Particles and Fields19, 301 (1983); R.A. Bertlmann, G. Launer, E. de Rafael: Nucl. Phys.B250, 61 (1985)

    Google Scholar 

  17. S.N. Sokolov, I.N. Silin: CERN preprint (1961) 810, Dubna

  18. G. Launer, S. Narison, R. Tarrach: Z. Phys. C—Particles and Fields26, 433 (1984)

    Google Scholar 

  19. Y. Chung, H.G. Dosch, M. Kremer, D. Schall: Z. Phys. C—Particles and Fields25, 151 (1984)

    Google Scholar 

  20. L.J. Reinders, H. Rubinstein, S. Yazaki: Phys. Rep.127, 1 (1985) and references therein: A. di Giacomo: Proc. Non Pert. Methods (Montpellier 1985)

    Google Scholar 

  21. B.L. Ioffe: Nucl. Phys.B191, 591 (1981) (E);B188, 317 (1981); D. Espriu, M. Gross, J.F. Wheater: Phys. Lett.B146, 67 (1984)

    Google Scholar 

  22. J. Gasser, H. Leutwyler: Phys. Ref. C—Particles and Fields87, 77 (1982) and references therein

    Google Scholar 

  23. J.I. Latorre, P. Pascual, R. Tarrach: Barcelona preprint 1985; D.J. Broadhurst, S.C. Generalis: Proc. Non-Perturb. Methods (Montpellier, July 1985)

  24. J. Govaerts, L.J. Reinders, H.R. Rubinstein, J. Weyers: Nucl. Phys.B258, 215 (1985); J. Govaerts et al.: Nucl. Phys.B262, 575 (1985)

    Google Scholar 

  25. S. Narison: Review talk given at the Leipzig conference (1984) and at the LEAR Workshop (1985). Montpellier preprint LPM 85/2 (1985) and references therein

  26. S. Narison: Z. Phys. C—Particles and Fields22, 161 (1984); Montpellier PM 84/22 and CERN preprints TH 3990 (1984); D.J. Broadhurst, S.C. Generalis: OUT-4102-12 (1984)

    Google Scholar 

  27. S. Narison, N. Paver: Z. Phys. C—Particles and Fields22, 69 (1984); Phys. Lett.135B, 159 (1984)

    Google Scholar 

  28. F. de Viron, J. Govaerts: Phys. Rev. Lett.53, 2207 (1984)

    Google Scholar 

  29. Particle data booklet

  30. M. Tanimoto: Phys. Lett.116B, 198 (1982)

    Google Scholar 

  31. J.I. Sakurai: Currents and mesons. Chicago: Univ. of Chicago press 1969

    Google Scholar 

  32. R. Partridge et al.: Phys. Rev. Lett.44, 712 (1980)

    Google Scholar 

  33. J. Latorre: Ph.D. thesis Barcelona University (October 1985) unpublished

  34. For a review, see e.g. L. Montanet: Proc. Non-Perturb. Methods (Montpellier 1985), D. Hitlin, ibid Proc. Non-Perturb. Methods (Montpellier 1985)

  35. N.N. Nikolaev, A.V. Radyushkin: Phys. Lett.124B, 243 (1983)

    Google Scholar 

  36. U. Gastaldi: Proc of the 3rd LEAR Workshop, p. 369 Ed. U. Gastaldi et al. Tignes 1985

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Author notes

  1. S. Narison

    Present address: Laboratoire de Physique Mathématique, U.S.T.L., Place Eugène Bataillon, F-34060, Montpellier, France

Authors and Affiliations

  1. Department of Theoretical Physics, University of Barcelona, 647 Diagonal, E-08193, Barcelona 28, Spain

    J. I. Latorre & P. Pascual

  2. ICTP, 11 Strada Costiera, Miramare, I-34100, Trieste, Italy

    S. Narison

Authors
  1. J. I. Latorre
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  2. P. Pascual
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  3. S. Narison
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Work partially supported by the CNRS (France within the France-Italy-Spain exchange program (AI Europe) and by Plan Mo vilizador de Altas Energias (Spain)

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Latorre, J.I., Pascual, P. & Narison, S. Spectra and hadronic couplings of light hermaphrodite mesons. Z. Phys. C - Particles and Fields 34, 347–360 (1987). https://doi.org/10.1007/BF01548817

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  • DOI: https://doi.org/10.1007/BF01548817

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