Observation of an Exotic Baryon with S = +1 in Photoproduction from the Proton

V. Kubarovsky, L. Guo, D. P. Weygand, P. Stoler, M. Battaglieri, R. DeVita, G. Adams, Ji Li, M. Nozar, C. Salgado, P. Ambrozewicz, E. Anciant, M. Anghinolfi, B. Asavapibhop, G. Audit, T. Auger, H. Avakian, H. Bagdasaryan, J. P. Ball, S. BarrowK. Beard, M. Bektasoglu, M. Bellis, N. Benmouna, B. L. Berman, N. Bianchi, A. S. Biselli, S. Boiarinov, S. Bouchigny, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, V. D. Burkert, C. Butuceanu, J. R. Calarco, D. S. Carman, B. Carnahan, C. Cetina, S. Chen, L. Ciciani, P. L. Cole, J. Connelly, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, J. P. Cummings, E. de Sanctis, P. V. Degtyarenko, H. Denizli, L. Dennis, K. V. Dharmawardane, C. Djalali, G. E. Dodge, D. Doughty, P. Dragovitsch, M. Dugger, S. Dytman, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, L. Elouadrhiri, A. Empl, P. Eugenio, L. Farhi, R. Fatemi, R. J. Feuerbach, J. Ficenec, T. A. Forest, V. Frolov, H. Funsten, S. J. Gaff, M. Garçon, G. Gavalian, G. P. Gilfoyle, K. L. Giovanetti, P. Girard, R. Gothe, C. I.O. Gordon, K. Griffioen, M. Guidal, M. Guillo, V. Gyurjyan, C. Hadjidakis, R. S. Hakobyan, D. Hancock, J. Hardie, D. Heddle, P. Heimberg, F. W. Hersman, K. Hicks, M. Holtrop, J. Hu, Y. Ilieva, M. M. Ito, D. Jenkins, K. Joo, H. G. Juengst

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Abstract

The observation of a narrow baryon state during an interaction between photons and kaons with nuclear targets was discussed. The mass of the observed was found to be consistent with the mass predicted by the chiral soliton model. The analysis of the invariant mass distribution in the reaction proved the absence of resonance structures in this spectrum. The various possible channel processes were also analyzed to understand the potential production mechanisms.
Original languageEnglish
Pages (from-to)320011-320015
Number of pages5
JournalPhysical Review Letters
Publication statusPublished - 23 Jan 2004
Externally publishedYes

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    Kubarovsky, V., Guo, L., Weygand, D. P., Stoler, P., Battaglieri, M., DeVita, R., Adams, G., Li, J., Nozar, M., Salgado, C., Ambrozewicz, P., Anciant, E., Anghinolfi, M., Asavapibhop, B., Audit, G., Auger, T., Avakian, H., Bagdasaryan, H., Ball, J. P., ... Juengst, H. G. (2004). Observation of an Exotic Baryon with S = +1 in Photoproduction from the Proton. Physical Review Letters, 320011-320015. https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=3543067352&origin=inward