APS » PROLA » Phys. Rev. Lett. » Volume 84 » Issue 26

Phys. Rev. Lett. 84, 5963 - 5966 (2000)

Observation of a Spin-Flip M1 Transition in Λ7Li
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H. Tamura et al.
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Received 20 March 2000

Using a large-acceptance germanium detector array (Hyperball), we have observed a spin-flip M1 γ transition between the ground-state spin doublet of Λ7Li ( 3 / 2+→1 / 2+). The observed energy of 691.7±0.6(stat)±1.0(syst) keV provides crucial information on the strength of the spin-spin interaction between a Λ and a nucleon. This is the first observation of well-identified hypernuclear γ transitions using germanium detectors.


©2000 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v84/p5963
DOI: 10.1103/PhysRevLett.84.5963
PACS: 21.80.+a, 21.30.Fe, 23.20.Lv, 25.80.Hp

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