The experiment involved the way the nucleus of a helium atom, also called an alpha particle, gains energy to become excited. The Impact ...

An alpha particle, or helium-4 nucleus, was the subject of a recent German experiment. Since helium-4 only has two protons and two neutrons, theoretical calculations can be used to describe it ...

A recent experiment in Germany studied the helium-4 nucleus, also known as an alpha particle. Helium-4 consists of only two protons and two neutrons, making it relatively easy to describe using ...

Helium is the second most abundant element in the Universe, after hydrogen. The nucleus of its most common isotope, helium-4, consists of two protons and two neutrons and is called the α-particle ...

Helium is the simplest element in the periodic table with more than one particle in its nucleus, yet state of the art theory and experiments on it don't add up.

Carbon is essential for life on Earth and is created via nuclear fusion within red-giant stars. In what is known as the triple-alpha reaction, one helium nucleus (alpha particle) joins to another to ...

Alpha radiation is made up of a stream of alpha particles emitted from unstable nuclei within a radioactive substance. An alpha particle is also a helium-4 nucleus.

To obtain this information, Williams and colleagues studied a reaction in which radioactive strontium-94 absorbs an alpha particle (a helium nucleus), then emits a neutron and transforms into ...

The group is publishing its results today in the renowned scientific journal Nature ("The alpha particle charge radius from laser spectroscopy of the muonic helium-4 ion"). According to their findings ...