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439 results on '"Jido, D"'

154. A study of mixing properties of a[sub 1](1260) meson

Author

Nagahiro, H., primary, Nawa, K., additional, Ozaki, S., additional, Jido, D., additional, Hosaka, A., additional, Hosaka, Atsushi, additional, Khemchandani, Kanchan, additional, Nagahiro, Hideko, additional, and Nawa, Kanabu, additional

Published
2011
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165. Chiral dynamics of p-wave in K^- p and coupled states

Author

Jido, D., Oset, E., Ramos, A., Jido, D., Oset, E., and Ramos, A.

Abstract

We perform an evaluation of the p-wave amplitudes of meson-baryon scattering in the strangeness S=-1 sector starting from the lowest order chiral Lagrangians and introducing explicitly the Sigma^* field with couplings to the meson-baryon states obtained using SU(6) symmetry. The N/D method of unitarization is used, equivalent, in practice, to the use of the Bethe-Salpeter equation with a cut-off. The procedure leaves no freedom for the p-waves once the s-waves are fixed and thus one obtains genuine predictions for the p-wave scattering amplitudes, which are in good agreement with experimental results for differential cross sections, as well as for the width and partial decay widths of the Sigma^*(1385)., Comment: LaTeX, 18 pages, 6 figures

Published
2002
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166. Flavor SU(3) breaking effects in the chiral unitary model for meson-baryon scatterings

Author

Hyodo, T., Nam, S. I., Jido, D., Hosaka, A., Hyodo, T., Nam, S. I., Jido, D., and Hosaka, A.

Abstract

We examine flavor SU(3) breaking effects on meson-baryon scattering amplitudes in the chiral unitary model. It turns out that the SU(3) breaking, which appears in the leading quark mass term in the chiral expansion, can not explain the channel dependence of the subtraction parameters of the model, which are crucial to reproduce the observed scattering amplitudes and resonance properties., Comment: RevTeX4, 4 pages, 3 figures, 2 tables

Published
2002
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168. Dynamically generated resonances

Author

Oset, E, primary, Ramos, A, additional, Sarkar, S, additional, Bao-Xi, Sun, additional, Vacas, M. J. Vicente, additional, Gonzalez, P, additional, Vijande, J, additional, Jido, D, additional, Sekihara, T, additional, Martinez-Torres, A, additional, and Khemchandani, K, additional

Published
2009
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173. Meson and Baryon resonances

Author

Oset, E., primary, Geng, L.S., additional, Gamermann, D., additional, Molina, R., additional, Nicmorus, D., additional, Yamagata-Sekihara, J., additional, Nagahiro, H., additional, Hirenzaki, S., additional, Jido, D., additional, Döring, M., additional, and Ramos, A., additional

Published
2009
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180. Photo- and electro-production of mesons on nucleons and nuclei

Author

Oset, E., primary, Döring, M., additional, Strottman, D., additional, Jido, D., additional, Napsuciale, M., additional, Sasaki, K., additional, Vaquera-Araujo, C.A., additional, Kaskulov, M., additional, Hernandez, E., additional, Nagahiro, H., additional, and Hirenzaki, S., additional

Published
2008
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184. Spectroscopy of η′-nucleus bound states at GSI and FAIR - very preliminary results and future prospects -.

Author

Fujioka, H., Ayyad, Y., Benlliure, J., Brinkmann, K.-T., Friedrich, S., Geissel, H., Gellanki, J., Guo, C., Gutz, E., Haettner, E., Harakeh, M., Hayano, R., Higashi, Y., Hirenzaki, S., Hornung, C., Igarashi, Y., Ikeno, N., Itahashi, K., Iwasaki, M., and Jido, D.

Subjects
SPECTRUM analysis, BOUND states, NUCLEAR physics experiments, SYMMETRY (Physics), CHIRALITY of nuclear particles, NUCLEAR reactions
Abstract

The possible existence of η′-nucleus bound states has been put forward through theoretical and experimental studies. It is strongly related to the η′ mass at finite density, which is expected to be reduced because of the interplay between the U(1) anomaly and partial restoration of chiral symmetry. The investigation of the C( p, d) reaction at GSI and FAIR, as well as an overview of the experimental program at GSI and future plans at FAIR are discussed. [ABSTRACT FROM AUTHOR]

Published
2015
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185. The fo(1790) and fo (1800) puzzle.

Author

Khemchandani, K. P., Martínez Torres, A., Nielsen, M., Navarra, F. S., Jido, D., Hosaka, A., and Oset, E.

Subjects
QUANTUM numbers, PROPERTIES of nuclear particles, QUANTUM theory, SCALAR mesons, RADIOACTIVE decay
Published
2014

193. A study of mixing properties of a1(1260) meson.

Author

Nagahiro, H., Nawa, K., Ozaki, S., Jido, D., and Hosaka, A.

Subjects
MESONS, NUCLEAR structure, PARTICLES (Nuclear physics), QUARK models, CLUSTER theory (Nuclear physics), SYMMETRY (Physics), SCATTERING (Physics)
Abstract

We develop a practical method to analyze the mixing structure of hadrons consisting of two components of quark composite and hadronic composite by taking the a1(1260) meson as an example. We also make reference to the large Nc procedure and its limitation for the classification of such a mixed state. [ABSTRACT FROM AUTHOR]

Published
2011
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194. Mesonic and nonmesonic absorption of kaon in nuclear matter and Λ(1405) doorway process.

Author

Sekihara, T., Yamagata-Sekihara, J., Jido, D., and Kanada-En'yo, Y.

Subjects
KAON decay, MESON decay, ABSORPTION, NUCLEAR models, NUCLEAR matter, POTENTIAL theory (Physics), CHIRALITY of nuclear particles
Abstract

The mesonic and nonmesonic absorptions of kaon into nuclear systems are investigated from a viewpoint of Λ(1405) doorway process. Using a one-meson exchange model in the calculation of the nonmesonic Λ(1405)N→YN transition and using the chiral unitary approach for the description of the Λ(1405), we obtain the nonmesonic transition ratio ΓΛN/ΓΣ0N≃1.2 which is almost independent of the nucleon density, and find the total nonmesonic decay width of the Λ(1405) in uniform nuclear matter to be 22 MeV at the normal density. We also calculate the absorption for stopped K- in nuclear matter, and find that the 'formation rate' of Λ(1405) is important for the density dependence and the absolute value of the absorption potential of kaon in nuclear matter. [ABSTRACT FROM AUTHOR]

Published
2010
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