Measurement of the γp→K0Σ+ reaction with the Crystal Ball/TAPS detectors at the Mainz Microtron

P. Aguar-Bartolomé, J. R M Annand, H. J. Arends, K. Bantawa, R. Beck, V. Bekrenev, H. Berghäuser, A. Braghieri, W. J. Briscoe, J. Brudvik, S. Cherepnya, R. F B Codling, C. Collicott, B. Demissie, M. Dieterle, E. J. Downie, P. Drexler, L. V. Fil'Kov, A. Fix, D. I. GlazierR. Gregor, D. Hamilton, E. Heid, D. Hornidge, D. Howdle, L. Isaksson, I. Jaegle, O. Jahn, T. C. Jude, V. L. Kashevarov, I. Keshelashvili, R. Kondratiev, M. Korolija, M. Kotulla, A. Koulbardis, S. Kruglov, B. Krusche, V. Lisin, K. Livingston, I. J D Macgregor, Y. Maghrbi, J. Mancel, D. M. Manley, E. F. McNicoll, D. Mekterovic, V. Metag, A. Mushkarenkov, B. M K Nefkens, A. Nikolaev, R. Novotny, M. Oberle, H. Ortega, M. Ostrick, P. Ott, P. B. Otte, B. Oussena, P. Pedroni, F. Pheron, A. Polonski, S. Prakhov, J. Robinson, G. Rosner, T. Rostomyan, S. Schumann, M. H. Sikora, D. I. Sober, A. Starostin, I. I. Strakovsky, I. M. Suarez, I. Supek, C. M. Tarbert, M. Thiel, A. Thomas, M. Unverzagt, D. P. Watts, D. Werthmüller, L. Witthauer, F. Zehr

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Abstract

The γp→K0Σ+ reaction has been measured from threshold to Eγ=1.45 GeV (WCM=1.9 GeV) using the Crystal Ball and TAPS multiphoton spectrometers together with the photon tagging facility at the Mainz Microtron MAMI. In the present experiment, this reaction was searched for in the 3π0p final state, by assuming KS0→π0π0 and Σ+→π0p. The experimental results include total and differential cross sections as well as the polarization of the recoil hyperon. The new data significantly improve empirical knowledge about the γp→K0Σ+ reaction in the measured energy range. The results are compared to previous measurements and model predictions. It is demonstrated that adding the present γp→K0Σ+ results to existing data allowed a better description of this reaction with various models.

Original languageEnglish
Article number044601
JournalPhysical Review C - Nuclear Physics
Volume88
Issue number4
DOIs
Publication statusPublished - 2 Oct 2013

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Aguar-Bartolomé, P., Annand, J. R. M., Arends, H. J., Bantawa, K., Beck, R., Bekrenev, V., Berghäuser, H., Braghieri, A., Briscoe, W. J., Brudvik, J., Cherepnya, S., Codling, R. F. B., Collicott, C., Demissie, B., Dieterle, M., Downie, E. J., Drexler, P., Fil'Kov, L. V., Fix, A., ... Zehr, F. (2013). Measurement of the γp→K0Σ+ reaction with the Crystal Ball/TAPS detectors at the Mainz Microtron. Physical Review C - Nuclear Physics, 88(4), [044601]. https://doi.org/10.1103/PhysRevC.88.044601