Titlebook: Meson and Baryon Spectroscopy; D. B. Lichtenberg Book 1964 Springer-Verlag, Berlin · Goettingen · Heidelberg 1964 Cross section.classifica

nuclear-tests

MURAL

Introduction,ticles — the mesons and baryons. With the advent of high energy accelerators, mesons and baryons have been discovered at an increasingly rapid rate. A new spectroscopy has grown up, with the object of determining the masses and other quantum numbers of these particles.

無節(jié)奏

Conservation laws,ly successful dynamical theory of the interactions of these particles. Nevertheless, much of the experimental information has been correlated by the use of a number of symmetries or invariance principles which appear to hold in elementary particle interactions.

無辜

Methods of obtaining information about the spins of particles, is given by . where the .. are spin eigenfunctions with respect to some fixed direction in space and the .. are, in general, functions of the production angle. Since the .. are complex, they are specified by 2(2. + 1) real numbers. However, since an overall phase is unobservable, a pure state is sp

SSRIS

Methods of obtaining information about the parities of particles, pointed out by . and . (1956). Parity conservation has been tested in some strong interactions and found to hold, but tests have not been made in enough cases to give us complete confidence in the generality of this result. For example, parity conservation might be violated at extremely high energi

無效

Dalitz plot and other plots,f events of such a character, a question arises as to how to analyze the data to obtain useful information about the final state. One possibility is to calculate the invariant energy or mass. of two of the final state particles and to plot the number of pairs vs. the mass of a pair. Another possibil

談判

,The Λ hyperon,t of the discovery of the A and other strange particles, and have discussed methods by which the properties of these particles were obtained. A more recent discussion of the strange particles has been given by . and . (1963).

Ordeal

RAGE

繁榮地區(qū)