The (J(max)+1)/2 Rule: Isomerism Involving Four Nucleons in T=1 States

TL;DR

This paper investigates the angular momentum states of four nucleons with isospin T=1, revealing that states with J=(J(max)+1)/2 are energetically favored and often become isomeric or ground states.

Contribution

It introduces the (J(max)+1)/2 rule for isomerism in four-nucleon T=1 states within a single J shell, highlighting a specific angular momentum pattern.

Findings

States with J=(J(max)+1)/2 are very low in energy.

These states often become isomeric or ground states.

The rule helps predict nuclear state properties.

Abstract

It is here noted that in a calculation with four nucleons with isospin T=1 in a single J shell the states with angular momentum J=(J(max)+1)/2 lie very low and become either isomeric states or ground states.