Experimental study of the gamma p -> pi (0)pi(0) p reaction with the Crystal Ball/TAPS detector system at the Mainz Microtron

V. L. Kashevarov, A. Fix, S. Prakhov, P. Aguar-Bartolome, J. R. M. Annand, H. J. Arends, K. Bantawa, R. Beck, V. Bekrenev, H. Berghaeuser, A. Braghieri, W. J. Briscoe, J. Brudvik, S. Cherepnya, R. F. B. Codling, E. J. Downie, P. Drexler, L. V. Fil'kov, D. I. Glazier, R. GregorE. Heid, D. Hornidge, L. Isaksson, I. Jaegle, O. Jahn, T. C. Jude, I. Keshelashvili, R. Kondratiev, M. Korolija, M. Kotulla, A. Koulbardis, S. Kruglov, B. Krusche, V. Lisin, K. Livingston, I. J. D. MacGregor, Y. Maghrbi, D. M. Manley, J. C. McGeorge, F. McNicoll, D. Mekterovic, V. Metag, A. Mushkarenkov, B. M. K. Nefkens, A. Nikolaev, R. Novotny, H. Ortega, M. Ostrick, P. Ott, D. P. Watts, MAMI Collaboration, TAPS Collaboration, A2 Collaboration

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Abstract

The gamma p -> pi(0)pi(0) p reaction has been measured from threshold to 1.4 GeV using the Crystal Ball and TAPS photon spectrometers together with the photon tagging facility at the Mainz Microtron. The experimental results include total and differential cross sections as well as specific angular distributions, which were used to extract partial-wave amplitudes. In particular, the energy region below the D-13(1520) resonance was studied.

Original languageEnglish
Article number064610
Number of pages11
JournalPhysical Review C
Volume85
Issue number6
DOIs
Publication statusPublished - 13 Jun 2012

Keywords

  • TAGGED PHOTON SPECTROMETER
  • PI(0) PHOTOPRODUCTION
  • ANGULAR-DISTRIBUTIONS
  • HELICITY DEPENDENCE
  • RESONANCE REGION
  • PARTIAL-WAVE
  • PROTON
  • NUCLEON
  • THRESHOLD
  • MAMI

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