Topic
Mass formula
About: Mass formula is a research topic. Over the lifetime, 1248 publications have been published within this topic receiving 22043 citations.
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TL;DR: In this paper, a simple expression for the melting temperature of small particles is obtained by a classical approach based upon the Wiezsacker mass formula for the atom, and the effect of different geometries is also discussed.
Abstract: A simple expression for the melting temperature of small particles is obtained by a classical approach based upon the Wiezsacker mass formula for the atom. The effect of different geometries is also discussed.
19 citations
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TL;DR: In this article, the one-loop correction to the spectrum of Kaluza-Klein system for the 3 model on 1,d × (θ2)L is evaluated in the high temperature limit, where the 1+d dimensions are the ordinary flat Minkowski spacetimes and the L extra two-dimensional tori are chosen to be the non-commutative torus with noncommutativity θ.
Abstract: The one-loop correction to the spectrum of Kaluza-Klein system for the 3 model on 1,d × (θ2)L is evaluated in the high temperature limit, where the 1+d dimensions are the ordinary flat Minkowski spacetimes and the L extra two-dimensional tori are chosen to be the non-commutative torus with noncommutativity θ. The corrections to the Kaluza-Klein mass formula are evaluated and used to compute the Casimir energy with the help of the Schwinger perturbative formula in the zeta-function regularization method. The results show that the one-loop Casimir energy is independent of the radius of torus if L = 1. However, when L > 1 the Casimir energy could give repulsive force to stabilize the extra non-commutative torus if d−L is a non-negative even integral. This therefore suggests a possible stabilization mechanism of extra radius in high temperature, when the extra spaces are non commutative.
19 citations
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TL;DR: In this paper, the bound-state approach to heavy baryons was shown to have a heavy quark limit provided that the proper degenerate meson multiplet is considered.
19 citations
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TL;DR: Lanczos's fundamental system was put in Lagrangian form and generalized in 1933 by Einstein and Mayer, who used the semivector instead of the quaternion formalism as discussed by the authors.
Abstract: In 1929 Lanczos showed how to derive Dirac's equation from a more fundamental system that predicted that spin 1/2 particles should come in pairs. Today, these pairs can unambiguously be interpreted as isospin doublets. From the same fundamental equation, Lanczos derived also the correct form of the wave equation of massive spin 1 particles that would be rediscovered in 1936 by Proca.
Lanczos's fundamental system was put in Lagrangian form and generalized in 1933 by Einstein and Mayer, who used the semivector instead of the quaternion formalism. Although they not did study all possible solutions, Einstein and Mayer showed that the doublets consisted of particles with different mass and charge. In fact, there are two main classes of doublets: proton/neutron and electron/neutrino pairs.
19 citations
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21 Feb 2000
TL;DR: In this article, it was shown that non-supersymmetric black holes carrying both electric and magnetic charge with respect to a single Kaluza-Klein gauge field have much in common with supersymmetric Black Holes and other general physics principles underlies some of their basic features.
Abstract: Non-supersymmetric black holes carrying both electric and magnetic charge with respect to a single Kaluza-Klein gauge field have much in common with supersymmetric black holes. Angular momentum conservation and other general physics principles underlies some of their basic features. Kaluza-Klein black holes are interpreted in string theory as bound states of D6-branes and D0-branes. The microscopic theory reproduces the full nonlinear mass formula of the extremal black holes.
19 citations