λ现象：液氦和手性QCD的λ点
Lambda Phenomena: the Lambda points of liquid Helium and chiral QCD
摘要：
液氦的超流相变与QCD的手征极限有一个共同的有趣现象：在临界点比热是有限的，但有一个尖点。由此可见，在临界点上，普遍性和非普遍性的特征是一个有趣的混合体。通过手征QCD的CP对称性，这对四阶重子数磁化率和高阶重子数磁化率有影响。对这种标度的研究将告诉我们，当π质量是真实的时，O（4）标度是否是无重子QCD的精确描述。
英文摘要：
The superfluid transition of liquid Helium shares an interesting phenomenon with the chiral limit of QCD: the specific heat is finite at the critical point, but has a cusp. From this follows an interesting mixture of universal and non-universal features at the critical point. Through the CP symmetry of chiral QCD, this has implications for the fourth order baryon number susceptibility and susceptibilities of higher orders. Investigations of such a scaling will show us whether O(4) scaling is an accurate description of baryon-free QCD when the pion mass is realistic.
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。
