RT Journal Article T1 Global fit of pi-pi and pi-K elastic-scattering in chiral perturbation-theory with dispersion-relations A1 Dobado González, Antonio A1 Peláez Sagredo, José Ramón AB We apply the one-loop results of the SU(3)L X SU(3)R chiral perturbation theory supplemented with the inverse-amplitude method to fit the available experimental data on pipi and piK scattering. With essentially only three parameters we describe accurately data corresponding to six different channels: namely, (I,J) = (0,0), (2,0), (1,1), (1/2, 0), (3/2, 0), and (1/2, 1). In addition we reproduce the first resonances of the (1, 1) and (1/2, 1) channel with the right mass corresponding to the rho and the K* (892) particles. PB American Physical Society SN 0556-2821 YR 1993 FD 1993-06-01 LK https://hdl.handle.net/20.500.14352/58750 UL https://hdl.handle.net/20.500.14352/58750 LA eng NO [1] S. Weinberg, Physica 96A, 327 (1979).[2] J. Gasser and H. Leutwyler, Ann. Phys. (N.Y.) 158, 142 (1984);Nucl. Phys. 8250, 465 (1985);8250, 517 (1985).[3] J. M. Cornwall, D. N. Levin, and G. Tiktopoulos, Phys. Rev. D 10, 1145 (1974); B. W. Lee, C. Quigg, and H. Thacker, ibid. 16, 1519 (1977); M. Veltman, Acta Phys. Pol. B 8, 475 (1977);T. Appelquist and C. Bernard, Phys. Rev. D 22, 200 (1980); M. S. Chanowitz and M. K. Gaillard, Nucl. Phys. 8261, 379 (1985).[4] A. Dobado and M. J. Herrero, Phys. Lett. 8 228, 495 (1989); 233, 505 (1989);J. Donoghue and C. Ramirez, ibid. 234, 361 (1990); A. Dobado, M. J. Herrero, and T. N. Truong, ibid. 235, 129 (1989); A. Dobado, M. J. Herrero, and J. Terron, Z. Phys. C 50, 205 (1991);50, 465 {1991);S. Dawson and G. Valencia, Nucl. Phys. 8352, 27 (1991);A. Dobado, D. Espriu, and M. J. Herrero, Phys. Lett. B 255, 405 (1991); D. Espriu and M. J. Herrero, Nucl. Phys. B373, 117(1992).[5]Tran N. Truong, Phys. Rev. Lett. 61, 2526 (1988);67, 2260 (1991).[6] A. Dobado, M. J. Herrero, and T. N. Truong, Phys. Lett. B 235, 134 (1990).[7] G. Ecker, J. Gasser, A. Pich, and E. de Rafael, Nucl. Phys. 8321, 311 (1989);G. Ecker, J.Gasser, H. Leutwyler, A. Pich, and E. de Rafael, Phys. Lett. B 223, 425 (1989);J. F. Donoghue, C. Ramirez, and G. Valencia, Phys. Rev. D 39, 1947 (1989); V. Bernard, N. Kaiser, and U. G. Meissner, Nucl. Phys. 8364, 283 (1991).[8] V. Bernard, N. Kaiser, and U. G. Meissner, Nucl. Phys. 8357, 129 (1991);Phys. Rev. D 43, 2757 (1991).[9]J. F. Donoghue, C. Ramirez, and G. Valencia, Phys. Rev. D 38, 2195 (1988).[10] C. Riggenbach, J. F. Donoghue, J. Gasser, and B. Holstein, Phys. Rev. D 43, 127 (1991).[11] J. Gasser and Ulf-G. Meisner, Nucl. Phys. 8357, 90 ( 1991); Phys. Lett. B 258, 219 (1991).[12] P. Estabrooks and A. D. Martin, Nucl. Phys. 879, 301 (1974).[13] S. D. Protopopescu et al., Phys. Rev. D 7, 1279 (1973).[14] L. Rosselet et al., Phys. Rev. D 15, 574 (1977).[15] W. Manner, in Experimental Meson Spectroscopy 1974— (Boston), Proceedings of the Fourth International Conference on Meson Spectroscopy, edited by D. A. Garelich, AIP Conf. Proc. No. 21 (AIP, New York, 1974).[16] V. Srinivasan et al., Phys. Rev. D 12, 681 (1975).[17] M. David et al. (unpublished); G. Villet et al. (unpublished).[18] W. Hoogland et al., Nucl. Phys. 8126, 109 (1977).[19] M. J. Losty et al., Nucl. Phys. 869, 301 (1974).[20] W. Hoogland et al., Nucl. Phys. 879, 266 (1974).[21] P. Estabrooks et al., Nucl. Phys. 8133,490 (1978).[22] R. Mercer et a/ , Nucl. Phys. 832,.381 (1972).[23] M. J.Matison et al., Phys. Rev. D 9, 1872 (1974).[24] S. L. Baker et al., Nucl. Phys. 841, 211 (1972).[25] A. Dobado and J.R. Pelaez, Phys. Lett. B 286, 136 (1992).[26] C.J. C. Im, Phys. Lett. B 281, 357 (1992);Phys. Rev. D 41, 3324 (1990).[27] J. Bijnens and F. Cornet, Nucl. Phys. 8296, 557 (1988); J . F. Donoghue, B.R. Holstein, and Y. C. Lin, Phys. Rev. D 37, 2423 (1988); A. Dobado and J. R. Pelaez, Z. Phys. C 57, 501 (1993). NO © 1993The American Physical Society.This work has been partially supported by the Ministerio de Educacion y Ciencia (Spain) (CICYT AEN 90-0034) NO Ministerio de Educación y Ciencia (Spain) NO CICYT DS Docta Complutense RD 5 may 2024