Implications of a modified glueball potential for nuclear matter

Erik K. Heide; Serge Rudaz; Paul J. Ellis

doi:10.1016/0370-2693(92)90880-D

Implications of a modified glueball potential for nuclear matter

Erik K. Heide, Serge Rudaz, Paul J. Ellis

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

We point out that the effective potential which accounts for the QCD trace anomaly in a chiral lagrangian can involve the σ and π fields as well as the glueball field. This modified potential is applied to nuclear matter and, although the new contribution involves a small parameter, it is found to significantly extend the range of possible solutions. This improves the shape of the saturation curve at equilibrium, while yielding reasonable values for the quantities of interest.

Original language	English (US)
Pages (from-to)	259-264
Number of pages	6
Journal	Physics Letters B
Volume	293
Issue number	3-4
DOIs	https://doi.org/10.1016/0370-2693(92)90880-D
State	Published - Oct 29 1992

Bibliographical note

Funding Information:
We acknowledge partial support from the Department of Energy under contracts No. DE-FG02-87ER40328 and DE-AC02-83ER40105. A grant for computing time from the Minnesota Supercomputer Institute is gratefully acknowledged.

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AU - Rudaz, Serge

AU - Ellis, Paul J.

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N2 - We point out that the effective potential which accounts for the QCD trace anomaly in a chiral lagrangian can involve the σ and π fields as well as the glueball field. This modified potential is applied to nuclear matter and, although the new contribution involves a small parameter, it is found to significantly extend the range of possible solutions. This improves the shape of the saturation curve at equilibrium, while yielding reasonable values for the quantities of interest.

AB - We point out that the effective potential which accounts for the QCD trace anomaly in a chiral lagrangian can involve the σ and π fields as well as the glueball field. This modified potential is applied to nuclear matter and, although the new contribution involves a small parameter, it is found to significantly extend the range of possible solutions. This improves the shape of the saturation curve at equilibrium, while yielding reasonable values for the quantities of interest.

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Implications of a modified glueball potential for nuclear matter

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