Measurement of 3pi⁰ photoproduction on the proton from threshold to 1.4 GeV

2011/01/19 by A. Starostin, I. M. Suarez, Starostin, A. +115
Physics and Astronomy · #FOS: Physical sciences #Nuclear Experiment (nucl-ex) #nucl-ex

paper · pdf · doi:10.48550/arxiv.1101.3744

submitted to Physical Review C

arxiv created 2011/01/19 · arxiv updated 2015/03/17

Abstract

The total cross section for gamma p -> 3pi0 p has been measured for the first time from threshold to 1.4 GeV using the tagged photon beam of the Mainz Microtron. The equipment utilized the Crystal Ball multiphoton spectrometer, the TAPS forward detector and a particle identification detector. The gamma p -> 3pi0 p total cross section has two broad enhancements at sqrts~1.5 GeV and 1.7 GeV. We obtained the ratio of the total cross sections gamma p -> 3pi0 p to gamma p -> eta p equal to 0.014 ± 0.001 at sqrts~1.5 GeV.

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