It can unite the strong and
weak nuclear forces with the electromagnetic force and offers a candidate for dark matter.
Not exact matches
The laws of physic requires that there be
forces and objects that interact
with each other, such as the four
forces now known, of gravity, electro - magnetism, the strong and
weak nuclear forces (and now there is possibly dark energy) that is interwoven within matter.
Neutrinos, electrically neutral particles that sense only gravity and the
weak nuclear force, interact so feebly
with matter that 100 trillion zip unimpeded through your body every second.
The natural world abounds
with a baffling variety of particles smaller than atoms and four seemingly independent
forces: gravity, electromagnetism, and the strong and
weak nuclear forces.
When the four
forces — gravity, electromagnetism, the
weak nuclear force, and the strong
nuclear force — split off from an ur -
force not long after the big bang, the universe might have been threaded
with defects that gave it a texture.
The physicist Steven Weinberg of the University of Texas, Austin, received his Nobel Prize in 1979 for a major breakthrough in that quest — showing how electromagnetism and the
weak nuclear force are manifestations of the same underlying theory (he shared the prize
with Abdus Salam and Sheldon Glashow).
This model describes three types of
forces: electromagnetic interactions, which cause all phenomena associated
with electric and magnetic fields and the spectrum of electromagnetic radiation; strong interactions, which bind atomic nuclei; and the
weak nuclear force, which governs beta decay — a form of natural radioactivity — and hydrogen fusion, the source of the sun's energy.
Along
with gravity, the electromagnetic interaction and
weak nuclear force, strong - interactions are one of four fundamental
forces.
Instead of studying the decays of the Higgses, they looked for signs of a Higgs produced in tandem
with a Z boson or a W boson, particles that convey the
weak nuclear force, as they explain in a paper in press at Physical Review Letters.
In addition to producing gravity, WIMPs would interact
with other matter and themselves only through the
weak nuclear force.
Currently, the hypothetical Weakly Interacting Massive Particles, which are believed to interact
with normal matter through gravity and the
weak nuclear force, are the leading candidates to explain the composition of dark matter, but what class of particles these WIMPs belong to is not yet known.