Zobrazeno 1 - 10
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pro vyhledávání: '"Takamatsu Kunio"'
Autor:
Takamatsu, Kunio
Comments are presented on the analyses of $\pi\pi$/$K\pi$ scattering and production processes in relation with the combined fit and Adler zero concerning the hep-ph/0701058v1.
Comment: 5 pages, no figures
Comment: 5 pages, no figures
Externí odkaz:
http://arxiv.org/abs/hep-ph/0702108
Autor:
Takamatsu, Kunio
The observation of the scalar meson, kappa(900) was reported in the fall of the last year in the analyses on the K pi system of the J/psi -> bar K^*(892)^0 K^+ pi^- decay data obtained by the BES collaboration. The analyses have been performed by two
Externí odkaz:
http://arxiv.org/abs/hep-ph/0612340
Autor:
Kobayashi, Masaaki, Tsuru, Tsuneaki, Takamatsu, Kunio, Ishida, Shin, Komada, Toshihiko, Wakabayashi, Ayumu, Ishida, Muneyuki
The data on the pi- p --> M0 n, with M0 = pi0 pi0 pi0 or pi0 pi0 eta obtained in the GAMS experiment may be useful to study the sigma(400--700) and a_1^chi (1000), which can be taken as chiral partners of pi and rho, respectively. A preliminary analy
Externí odkaz:
http://arxiv.org/abs/hep-ph/0012326
Autor:
Takamatsu, Kunio
Publikováno v:
Prog.Theor.Phys. 102 (2001) E52-E57
The evidences for sigma(600) and kappa(900) observed in our analyses on the pi pi and K pi scattering phase shift data are described, briefly. The analysis have been performed by the interfering amplitude method, which satisfies the unitarity require
Externí odkaz:
http://arxiv.org/abs/hep-ph/0012324
Autor:
Ishida, Muneyuki, Komada, Toshihiko, Ishida, Shin, Ishida, Taku, Takamatsu, Kunio, Tsuru, Tsuneaki
Publikováno v:
Prog.Theor.Phys.104:203-210,2000
The pi0 pi0 mass spectra and angular distributions around KKbar -threshold and at 1.5 GeV in ppbar (at rest) --> 3 pi0 in the Crystal Barrel experiment are reanalyzed by applying the new method, which is consistent with unitarity of S-matrix and expr
Externí odkaz:
http://arxiv.org/abs/hep-ph/0005251
Autor:
Takamatsu, Kunio
Publikováno v:
Nucl.Phys. A675 (2000) 312c-315c
The results of the analysis of the pi^0 pi^0 scattering amplitudes obtained with pi^- P charge exchange reaction, pi^- P --> pi^0 pi^0 n, data at 9 GeV/c are presented. The pi^0 pi^0 scattering amplitudes show clear f_0(1370) and f_2(1270) signals in
Externí odkaz:
http://arxiv.org/abs/hep-ph/9910304
Autor:
Ishida, Muneyuki, Komada, Toshihiko, Ishida, Shin, Ishida, Taku, Takamatsu, Kunio, Tsuru, Tsuneaki
Publikováno v:
Nucl.Phys. A675 (2000) 222c-225c
The pi0 pi0 mass spectra and angular distributions around KK_bar-threshold and at 1.5 GeV in pp_bar(at rest) to 3pi0 in the Crystal Barrel experiment are reanalyzed by applying the new method, which is consistent with unitarity of S-matrix and expres
Externí odkaz:
http://arxiv.org/abs/hep-ph/9910248
Autor:
Takamatsu, Kunio
The amplitude analysis has been performed on the pi0 pi0 final state obtained in the pi- p charge exchange process. The pi0 pi0 scattering amplitudes have been obtained for the S and D waves by the Chew-Low extrapolation and the partial wave analysis
Externí odkaz:
http://arxiv.org/abs/hep-ph/9905361
Recently we obtained the evidence for the existence of sigma(600) meson, which had been sought but missing for a long time, by reanalyzing the I=0 S-wave pi pi scattering phase shift. The sigma-existence was also suggested through the analyses of pi
Externí odkaz:
http://arxiv.org/abs/hep-ph/9905261
Re-analyzing the old phase shift data of I=0, \pi\pi (I=1/2, K\pi) scattering, we show an evidence for existence of the \sigma-particle (\kappa-particle) with a comparatively light mass, which has been missing for a long time: In the analysis we have
Externí odkaz:
http://arxiv.org/abs/hep-ph/9712230