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In mathematics, in particular algebraic geometry, a moduli space is a geometric space (usually a scheme or an algebraic stack) whose points represent algebro-geometric...

existence of such particles has been found. In the 1967 paper that coined the term, Gerald Feinberg proposed that tachyonic particles could be made from...

distinguished from microparticles (1-1000 μm), "fine particles" (sized between 100 and 2500 nm), and "coarse particles" (ranging from 2500 to 10,000 nm), because...

string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings....

nuclear force that binds the latter particles to form atomic nuclei. The weak interaction is carried by particles called W and Z bosons, and also acts...

needs more experimentation to resolve the relationship between these two particles. Finally, since this theory can combine gravitational, electromagnetic...

Solutions of the equations are called Yang–Mills connections or instantons. The moduli space of instantons was used by Simon Donaldson to prove Donaldson's theorem...

supersymmetric particle. This causes almost all supersymmetric particles in the early Universe to decay into Standard Model particles via R-parity violating...

undiscovered elementary particle, dubbed the graviton. The three other known forces of nature are mediated by elementary particles: electromagnetism by the...

transform elementary particles from one kind into another, the theory of everything should also predict all the different kinds of particles possible. The usual...

symmetry between particles with integer spin (bosons) and particles with half-integer spin (fermions). It proposes that for every known particle, there exists...

properties of the elementary particles observed. For example, Andrew Strominger and Edward Witten have shown that the masses of particles depend on the manner...

forces that act on matter can be described in terms of elementary particles. These particles are sometimes described as being fundamental, since they have...

radiation escapes, there is a way in which incoming particles can modify the outgoing particles. Their gravitational field would deform the horizon of...

particle physics in which a system can lower its potential energy by spontaneously producing particles. The end result is a "condensate" of particles...

model of particle physics, together with additional undiscovered particles, usually supersymmetric partners to analogues of known particles. One popular...

normalizable. The Schrödinger equation, describing states of quantum particles, has solutions that describe a system and determine precisely how the...

freedom), of which the kinetic part coincides with the Kähler potential of the moduli space of vacua. Before taking the low-energy effective action, the theory...

the particles of the medium to compress and expand. These waves carry energy and are characterized by properties like acoustic pressure, particle velocity...

this theory, everything in the universe, beginning with the elementary particles, is made of tiny strings. As a string travels through spacetime it traces...