The scientists registered 128 alpha-particle events over 5 days and found an unexpected line in the spectrum at 3.14 MeV – now attributed to bismuth-209 decay. The half-life was calculated to be (1.9 ...

Alpha decay represents a fundamental mode of radioactive disintegration wherein an unstable nucleus emits an alpha particle—a tightly bound cluster of two protons and two neutrons.

An unstable nucleus can decay by the emitting an alpha particle to become more stable. Image caption, 2. An alpha particle is a “ball” of two protons and two neutrons.

Now, for the first time, scientists have observed this rare decay, and they have found that it might have slightly higher odds of occurring than its predicted chance of about one in 10 billion.

It’s the rarest particle decay ever discovered. Scientists have clinched the case for a special type of decay of subatomic particles called kaons. Further study of the rare decay could reveal a ...

This decay is extraordinarily uncommon—according to the Standard Model (SM) of particle physics, which describes particle ...

Scientists at CERN have discovered an ultra-rare particle decay process, opening a new path to find physics beyond our understanding of how the building blocks of matter interact.

Scientists spotted the rare “golden channel” decay of subatomic particles called kaons. Further studies could break or bolster the standard model of particle physics, Emily Conover reported in ...

Alpha particle therapy offers new hope for neuroendocrine tumors. Download PDF Copy; Reviewed. ... Alpha-emitters like 213 Bi decay rapidly, complicating production and delivery, ...

A review in Brain Medicine unveils the potential of targeted alpha particle therapy (TAT) as an innovative and exciting breakthrough for neuroendocrine tumours (NETs). Unlike traditional beta ...