2p-2p decay of 8C and isospin-allowed 2 p decay of the isobaric-analog state in 8B

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8C is found to decay to four protons and an α particle in two 2p emission steps. The correlations between the protons in the first step (8C to 6Be) exhibit a significant enhancement in the region of the decay phase space where the two protons have small relative energy, a region sometimes called the diproton region. The decay of the isobaric analog of 8C in 8B is also found to decay by 2p emission. This is the first case of isospin-allowed 2p decay between isobaric analog states. © 2010 The American Physical Society.

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Physical Review C - Nuclear Physics

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