Observation of the Charge Symmetry Breaking d + d -> 4He + pi0 Reaction Near Threshold

Details Observation of the Charge Symmetry Breaking d + d -> 4He + pi0 Reaction Near Threshold Observation of the Charge Symmetry Breaking d + d -> 4He + pi0 Reaction Near Threshold

2003-05-28

arxiv.org/abs/nucl-ex/0305032v1

Phys.Rev.Lett. 91 (2003) 142302

Physics

Nuclear Physics

Nuclear Experiment

7 pages, 2 figures, plain TeX

Scientific paper

10.1103/PhysRevLett.91.142302

We report the first observation of the charge symmetry breaking d + d -> 4He + pi0 reaction near threshold at the Indiana University Cyclotron Facility. Kinematic reconstruction permitted the separation of 4He + pi0 events from double radiative capture 4He + gamma + gamma events. We measured total cross sections for neutron pion production of 12.7 +- 2.2 pb at 228.5 MeV and 15.1 +- 3.1 pb at 231.8 MeV. The uncertainty is dominated by statistical errors.

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