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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 article, the SU(4) mass breaking formalism was used to study the quark contents of the pseudoscalar mesons using the Crystal Ball experiment at SLAC.
Abstract: In this paper, we study the quark contents of the η, η′ and ηc pseudoscalar mesons using SU(4) mass breaking formalism. We predict a mass value form
η
c
close to the one obtained by the Crystal Ball experiment at SLAC. Our analysis favors the linear mass formula rather than the quadratic one. A definite prediction for the value m
η
c
makes this experiment feasible.
1 citations
1 citations
TL;DR: An algebraic method for the solution of some dynamical problems for a nonrelativistic system with known symmetry properties is given, in the case of the so-called broken symmetry as mentioned in this paper.
Abstract: An algebraic method for the solution of some dynamical problems for a nonrelativistic system with known symmetry properties is given, in the case of the so-called broken symmetry. Examples of solvable models are given. One of these, based on the noncompact groupSp(6,R), given a mass formula for baryons depending on three parameters which reproduces the known masses within electromagnetic mass differences. The model implies the relation (Y*–Σ)/(Σ–Λ)=5/2 in good agreement with experiment. The mass formula in the model can be considered as an eigenvalue solution of a differential equation in an appropriate Riemannian manifold. Relation with the proposed models and with charge algebras is discussed.
1 citations