Domain walls and the CP anomaly in softly broken supersymmetric QCD
Domain walls and the CP anomaly in softly broken supersymmetric QCD
复制标题
软破断超对称 QCD 中的畴壁和 CP 异常
DOI:
10.1103/physrevd.97.085003
复制
发表时间:
2018
影响因子:
5
通讯作者:
Draper, Patrick
中科院分区:
文献类型:
--
作者:
Draper, Patrick
In ordinary QCD with light, degenerate, fundamental flavors,symmetry is spontaneously broken at, and domain wall solutions connecting the vacua can be constructed in chiral perturbation theory. In some cases the breaking ofsaturates a ’t Hooft anomaly, and anomaly inflow requires nontrivial massless excitations on the domain walls. Analogously,can be spontaneously broken in supersymmetric QCD (SQCD) with light flavors and small soft breaking parameters. We studybreaking and domain walls in softly broken SQCD withflavors. Relative to ordinary QCD, the supersymmetric case contains an extra light field, the, which has interesting effects on the structure of the walls. Vanishing of theanomaly is associated with the existence of multiple domain wall trajectories through field space, including walls which support no nontrivial massless excitations. In cases with an anomaly such walls are forbidden, and their absence in the relevant SQCD theories can be seen directly from the geometry of the low energy field space. In the case, multiple approximately Bogomol’nyi–Prasad–Sommerfield walls connect the vacua. Corrections to their tensions can be computed at leading order in the soft breaking parameters, producing a phase diagram for the stable wall trajectory. We also comment on domain walls in the similar case of QCD with an adjoint and fundamental flavors, and on the impact of adding an axion in this theory.
登录
查看更多内容
DOI:
--
发表时间:
1984
期刊:
影响因子:
--
作者:
L. Faddeev;S. Shatashvili
通讯作者:
S. Shatashvili
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
M. Dine;P. Draper;Laurel Stephenson;Di Xu
通讯作者:
Di Xu
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
A. Ritz;M. Shifman;A. Vainshtein
通讯作者:
A. Vainshtein
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
A. Smilga
通讯作者:
A. Smilga
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
A. Ritz;A. Vainshtein;M. Shifman
通讯作者:
M. Shifman