Simultaneous Measurements of the $p+d\to (A=3) +π$ Reactions

Details Simultaneous Measurements of the $p+d\to (A=3) +π$ Reactions Simultaneous Measurements of the $p+d\to (A=3) +π$ Reactions

2000-11-23

arxiv.org/abs/nucl-ex/0011019v1

Nucl.Phys.A690:473-493,2001

Physics

Nuclear Physics

Nuclear Experiment

23 pages, latex, 15 figures

Scientific paper

10.1016/S0375-9474(00)00699-0

A stack of annular detectors made of high purity germanium was used to measure simultaneously $pd\to {^3H} \pi^+$ and $pd\to {^3He} \pi^0$ differential cross sections at beam momenta of 750 MeV/c, 800 MeV/c, and 850 MeV/c over a large angular range. The extracted total cross sections for the $pd\to {^3He} \pi^0$ reactions bridge a gap between near threshold data and those in the resonance region. The ratio of the cross sections for the two reaction channels taken at the same $\eta={p^{cm}_\pi}/m_\pi$ yields $2.11\pm0.08$ indicating that a deviation from isospin symmetry is very small.

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