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There are four fundamental forces at work in the universe: the strong force, the weak force, the electromagnetic force, and the gravitational force. They work over different ranges and have different strengths. Gravity is the weakest but it has an infinite range.
- Fr
Les particules de matière transfèrent des quantités...
- Subatomic Particles
Quarks and electrons are some of the elementary particles we...
- Dark Matter
Unlike normal matter, dark matter does not interact with the...
- Fr
22 paź 2020 · The force-carrying particles (namely the photon, which conveys the electromagnetic force; the W and Z bosons, which convey the weak force; and the gluons, which convey the strong force) are put on the same footing as the matter particles those forces act between — quarks, electrons and their kin.
In nuclear physics and particle physics, the weak interaction, also called the weak force, is one of the four known fundamental interactions, with the others being electromagnetism, the strong interaction, and gravitation.
28 wrz 2024 · In particle physics, the weak force is essential for transforming quarks, altering atomic structures, and enabling element transmutation. The weak force is the force that causes a quark to change into a different type of quark or change a quark’s charge.
The role of the weak force in the transmutation of quarks makes it the interaction involved in many decays of nuclear particles which require a change of a quark from one flavor to another. It was in radioactive decay such as beta decay that the existence of the weak interaction was first revealed.
The weak interaction accounts for many decays in particle physics, e.g. μ. − → − e ̄νe νμ. − τ − → e ̄νe ντ π. + → − μ ̄νμ n → − pe ̄νe. Characterised by long lifetimes and small interaction cross-sections.
28 cze 2020 · The weak interaction changes the flavor of a quark in the proton from up to down and it changes the electron to an electron neutrino. This process is mediated by a W W boson. A very similar diagram illustrates the β− β − decay of a free neutron into a proton, an electron, and an antineutrino.
