Baryon onset in a magnetic field
Baryon onset in a magnetic field
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DOI：
10.1063/1.4938699
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发表时间：
2014-12
期刊：
影响因子：
--
通讯作者：
A. Haber;F. Preis;A. Schmitt
中科院分区：
文献类型：
--
作者：
A. Haber;F. Preis;A. Schmitt
核物质起始的临界重子化学势是真空质量和结合能的函数。这两个量都受到外部磁场的影响。我们在两个相对论平均场模型（包括磁催化，但忽略反常磁矩）中表明，磁场会增加真空质量和结合能。对于足够大的磁场，对真空质量的影响占主导地位，因此临界重子化学势增加。
The critical baryon chemical potential for the onset of nuclear matter is a function of the vacuum mass and the binding energy. Both quantities are affected by an external magnetic field. We show within two relativistic mean-field models – including magnetic catalysis, but omitting the anomalous magnetic moment – that a magnetic field increases both the vacuum mass and the binding energy. For sufficiently large magnetic fields, the effect on the vacuum mass dominates and as a result the critical baryon chemical potential is increased.