Ambiguities in the up-quark mass

被引：35

作者：

Creutz, M ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.92.162003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It has long been known that no physical singularity is encountered as up-quark mass is adjusted from small positive to negative values as long as all other quarks remain massive. This is tied to an additive ambiguity in the definition of the quark mass. This calls into question the acceptability of attempts to solve the strong CP problem via a vanishing mass for the lightest quark.

引用

页码：162003 / 1

页数：4

共 33 条

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AOKI Y, HEPLAT0211023

[2] CHIRAL SYMMETRY-BREAKING IN CONFINING THEORIES [J].