Observation of 4?h hyperhydrogen by decay-pion spectroscopy of electro-produced hypernuclei

An international team has been developing a new experimental technique – the decay-pion spectroscopy of electro-produced hypernuclei since 2011. They have now used this new technique to successfully measure the mass of [4?H], which consists of one proton, two neutrons and one ? particle. —> Read More

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