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Particle physics. Particle physics or high-energy physics is the study of fundamental particles and forces that constitute matter and radiation. The field also studies combinations of elementary particles up to the scale of protons and neutrons, while the study of combination of protons and neutrons is called nuclear physics.
The development of the Standard Model was driven by theoretical and experimental particle physicists alike. The Standard Model is a paradigm of a quantum field theory for theorists, exhibiting a wide range of phenomena, including spontaneous symmetry breaking, anomalies, and non-perturbative behavior.
In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. String theory describes how these strings propagate through space and interact with each other. On distance scales larger than the string scale, a string looks just like an ordinary ...
Lisa Randall HonFInstP (born June 18, 1962) is an American theoretical physicist and Frank B. Baird, Jr. Professor of Science at Harvard University. [1] Her research includes the fundamental forces of nature and dimensions of space. She studies the Standard Model, supersymmetry, possible solutions to the hierarchy problem concerning the ...
t. e. In theoretical physics, quantum field theory (QFT) is a theoretical framework that combines classical field theory, special relativity, and quantum mechanics. [1]: xi QFT is used in particle physics to construct physical models of subatomic particles and in condensed matter physics to construct models of quasiparticles.
The Higgs boson, sometimes called the Higgs particle, [ 9 ][ 10 ] is an elementary particle in the Standard Model of particle physics produced by the quantum excitation of the Higgs field, [ 11 ][ 12 ] one of the fields in particle physics theory. [ 12 ] In the Standard Model, the Higgs particle is a massive scalar boson with zero spin, even ...
Richard Phillips Feynman (/ ˈ f aɪ n m ə n /; May 11, 1918 – February 15, 1988) was an American theoretical physicist.He is known for the work he did in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, the physics of the superfluidity of supercooled liquid helium, and in particle physics, for which he proposed the parton model.
NOvA. v. t. e. Loop quantum gravity (LQG) is an outdated theory of quantum gravity that attempts to unify both general relativity and key quantum mechanics. The areas of research, which involve about 30 research groups worldwide, [ 1 ] share the basic physical assumptions and the mathematical description of quantum space.