Study of the gamma p --> pi0 pi0 p reaction with the Crystal Ball/TAPS at the Mainz

V L Kashevarov,A Fix,S N Prakhov, P Aguarbartolome,J R M Annand,H J Arends,K Bantawa, R Beck,V S Bekrenev, H Berghauser,A Braghieri,W J Briscoe,J Brudvik,S Cherepnya, R F B Codling,E J Downie,P Drexler, L V Filkov,D I Glazier,R Gregor,E Heid, D Hornidge,L Isaksson,I Jaegle,O Jahn,T C Jude,I Keshelashvili,R Kondratiev,M Korolija,M Kotulla,A A Koulbardis,S P Kruglov, B Krusche,V Lisin, K Livingston,I J D Macgregor,Y Maghrbi,D M Manley,J C Mcgeorge,E F Mcnicoll, D Mekterovic, V Metag,A Mushkarenkov,B M K Nefkens,A V Nikolaev,R Novotny, H Ortega,M Ostrick,P Ott,P B Otte,B Oussena,Peter Pedroni,F Pheron,A Polonski,Julian Robinson,G Rosner,T Rostomyan,S Schumann,Marek Sikora,D I Sober,A N Starostin,I I Strakovsky,Indara Suarez,I Supek, C M Tarbert,Michael Thiel,A Thomas,M Unverzagt,D P Watts, D Werthmuller,F Zehr

PHYSICAL REVIEW C（2012）

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摘要

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.

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