Publications and Research

Document Type

Article

Publication Date

9-25-1986

Abstract

A number of authors have investigated mass inequalities for mesons and baryons in QCD. These provide rigorous nonperturbative constraints on the mass spectrum. Similar inequalities for glueballs are investigated. For nonzero spin J, in the large-Nc approximation, mJ - ⩾ mJ+ is found. (For J = 0, the existence of a gluon condensate can modify this statement.) There are also constraints on how fast mJ can grow with J. For example, for mJ = a + bJα, 0 ⩽ α ⩽ 1 is found, a result consistent with Regge behaviour.

Comments

© 1986 Published by Elsevier B.V.

Link to publisher version:

https://doi.org/10.1016/0370-2693(86)90478-8

This article is made available under a Creative Commons Attribution Sharealike License (CC-BY-SA 4.0)

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