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arXiv 0909.3714hep-thhep-lathep-ph
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具有两个耦合常数的广义Gross-Neveu模型的大N解

Large N solution of generalized Gross-Neveu model with two coupling constants

Christian Boehmer, Michael Thies

摘要:

将1+1维Gross-Neveu模型推广到标量和赝标量耦合常数不同的情况。这使我们能够顺利地插入之间的标准无质量Gross-Neveu模型与离散或连续的手征对称性。给出了大N极限下广义模型的解,包括真空、费米子-反费米子散射、束缚态、分数重子数的孤子重子以及有限温度和化学势下的全相图.

英文摘要:

The Gross-Neveu model in 1+1 dimensions is generalized to the case of different scalar and pseudoscalar coupling constants. This enables us to interpolate smoothly between the standard massless Gross-Neveu models with either discrete or continuous chiral symmetry. We present the solution of the generalized model in the large N limit including the vacuum, fermion-antifermion scattering and bound states, solitonic baryons with fractional baryon number and the full phase diagram at finite temperature and chemical potential.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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