• Thumbnail for Coupling constant
    In physics, a coupling constant or gauge coupling parameter (or, more simply, a coupling), is a number that determines the strength of the force exerted...
    21 KB (2,848 words) - 06:16, 14 April 2025
  • Thumbnail for Fine-structure constant
    (dimensionless physical constant), independent of the system of units used, which is related to the strength of the coupling of an elementary charge e...
    63 KB (7,099 words) - 14:08, 27 April 2025
  • of each coupling constant also has a sign, and coupling constants of comparable magnitude often have opposite signs. If the coupling constant between...
    20 KB (2,414 words) - 21:30, 13 November 2024
  • Thumbnail for Gravitational constant
    The gravitational constant is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal...
    45 KB (5,217 words) - 19:43, 1 April 2025
  • Thumbnail for Electron paramagnetic resonance
    that the smaller coupling constant (smaller line spacing) is due to the three methoxy hydrogens, while the larger coupling constant (line spacing) is...
    52 KB (7,148 words) - 01:05, 5 February 2025
  • given by a dimensionless coupling constant. In quantum electrodynamics, this value is known as the fine-structure constant α, approximately equal to...
    9 KB (1,110 words) - 07:18, 25 January 2024
  • Thumbnail for Fermi's interaction
    PMID 17678280. S2CID 3255120. "CODATA Value: Fermi coupling constant". The NIST Reference on Constants, Units, and Uncertainty. US National Institute of...
    24 KB (4,049 words) - 13:43, 20 March 2025
  • particles. αs, the coupling constant for the strong force (≈ 1) One of the dimensionless fundamental constants is the fine-structure constant: α = e 2 4 π ε...
    27 KB (2,922 words) - 04:45, 15 April 2025
  • Thumbnail for Color charge
    In a quantum field theory, a coupling constant and a charge are different but related notions. The coupling constant sets the magnitude of the force...
    14 KB (1,910 words) - 22:02, 5 May 2025
  • Thumbnail for Quantum field theory
    renormalized coupling constant, which changes with the energy scale, is also called the running coupling constant.: 420  The coupling constant g in quantum...
    107 KB (14,885 words) - 22:36, 8 April 2025
  • Thumbnail for Proton nuclear magnetic resonance
    peaks) is known as the coupling constant. A typical coupling constant value for aliphatic protons would be 7 Hz. The coupling constant is independent of magnetic...
    21 KB (2,502 words) - 01:19, 5 October 2024
  • Thumbnail for Grand Unified Theory
    larger gauge symmetry and thus several force carriers, but one unified coupling constant. Unifying gravity with the electronuclear interaction would provide...
    32 KB (4,146 words) - 19:27, 27 April 2025
  • Thumbnail for Lambert W function
    chromodynamics, the quantum field theory of the Strong interaction, the coupling constant α s {\displaystyle \alpha _{\text{s}}} is computed perturbatively...
    78 KB (12,429 words) - 07:55, 27 March 2025
  • Thumbnail for Constant-velocity joint
    A constant-velocity joint (also called a CV joint and homokinetic joint) is a mechanical coupling which allows the shafts to rotate freely (without an...
    18 KB (2,292 words) - 05:08, 12 February 2025
  • NIST Reference on Constants, Units, and Uncertainty. NIST. May 2024. Retrieved 2024-05-18. "2022 CODATA Value: Fermi coupling constant". The NIST Reference...
    32 KB (1,713 words) - 16:38, 26 September 2024
  • )={\frac {1}{2}}\,\mu ^{2}\,\phi ^{2}+\lambda \,\phi ^{4}} where λ is a coupling constant. This potential is explored in detail in the article on the quartic...
    11 KB (1,738 words) - 09:47, 1 March 2025
  • because it relates a theory with coupling constant g {\displaystyle g} to an equivalent theory with coupling constant 1 / g {\displaystyle 1/g} . Thus...
    20 KB (2,501 words) - 13:50, 2 May 2025
  • supersymmetric Yang–Mills theory with coupling constant g is equivalent to the same theory with coupling constant 1/g. In other words, a system of strongly...
    62 KB (7,721 words) - 16:57, 28 January 2025
  • the Landau ghost) is the momentum (or energy) scale at which the coupling constant (interaction strength) of a quantum field theory becomes infinite...
    20 KB (2,306 words) - 05:30, 24 November 2024
  • arbitrary function G (known as Wegner's scaling function) and a constant d, in terms of the coupling g(M) at a reference scale M. Gell-Mann and Low realized in...
    50 KB (7,044 words) - 08:48, 21 April 2025
  • usual electromagnetic qualities. ξ and ζ are the coupling constants, which is the intrinsic constant of each media. This can be generalized to the case...
    6 KB (747 words) - 03:27, 25 February 2025
  • Thumbnail for Karplus equation
    named after Martin Karplus, describes the correlation between 3J-coupling constants and dihedral torsion angles in nuclear magnetic resonance spectroscopy:...
    3 KB (320 words) - 23:15, 28 November 2024
  • momenta are no longer constants of motion, but the sum of the two angular momenta usually still is. Angular momentum coupling in atoms is of importance...
    17 KB (2,234 words) - 20:09, 21 February 2024
  • leading to switching of momentum and winding. Every force has a coupling constant, which is a measure of its strength, and determines the chances of...
    11 KB (1,433 words) - 21:23, 1 February 2024
  • the spin–orbit interaction (also called spin–orbit effect or spin–orbit coupling) is a relativistic interaction of a particle's spin with its motion inside...
    29 KB (4,419 words) - 09:19, 3 April 2025
  • Thumbnail for Fine-tuned universe
    stronger than it is (i.e. if the coupling constant representing its strength were 2% larger) while the other constants were left unchanged, diprotons would...
    40 KB (4,631 words) - 11:08, 25 April 2025
  • Thumbnail for Weak interaction
    has a coupling constant (an indicator of how frequently interactions occur) between 10−7 and 10−6, compared to the electromagnetic coupling constant of about...
    43 KB (4,621 words) - 23:13, 1 May 2025
  • Thumbnail for Quantum electrodynamics
    argument goes as follows: if the coupling constant were negative, this would be equivalent to the Coulomb force constant being negative. This would "reverse"...
    50 KB (6,577 words) - 21:20, 3 May 2025
  • Euler Faraday constant – Michael Faraday Feigenbaum constants – Mitchell Feigenbaum Fermi coupling constant – Enrico Fermi Gauss's constant – Carl Friedrich...
    5 KB (500 words) - 23:13, 7 October 2024
  • Thumbnail for Nuclear magnetic resonance spectroscopy
    other than hydrogen, coupling is often the only way to distinguish different nuclei. The magnitude of the coupling (the coupling constant J) is an effect of...
    54 KB (6,192 words) - 06:59, 26 February 2025