High-resolution γ-ray spectroscopy of hyperfragments produced by stopped K− reactions

doi:10.1016/j.nuclphysa.2005.02.120

Nuclear Physics A

Volume 754, 30 May 2005, Pages 80-85

https://doi.org/10.1016/j.nuclphysa.2005.02.120 Get rights and content

Abstract

We performed an experiment to measure γ rays of hyperfragments produced by stopped $K^{-}$ reactions on light ( $A ⩽ 12$ ) targets (KEK-PS E509). We clearly observed an E2 transition ( $5 / 2^{+} \to 1 / 2^{+}$ ) in ⁷_ΛLi with ¹⁰B, ¹¹B and ¹²C targets and obtained the γ-ray intensity to be $(7.5 \pm 1.6) \times 10^{−4}$ per stopped $K^{-}$ for ¹⁰B target. In addition, a candidate for a new hypernuclear γ ray was observed. These results show that this method is quite suitable for the systematic study of hypernuclei.

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¹: Present address: Japan Atomic Energy Research Institute, Tokai 319-1195, Japan.

²: Present address: High Energy Accelerator Organization (KEK), Tsukuba 305-0801, Japan.

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High-resolution γ-ray spectroscopy of hyperfragments produced by stopped K− reactions

Abstract

Nucl. Phys. A

Phys. Rev. Lett.

Phys. Rev. Lett.

High-resolution γ-ray spectroscopy of hyperfragments produced by stopped $K^{-}$ reactions