标题： 非 supersymmetric 相交膜的一圈伴随质量 显示英文标题

标题： One-loop adjoint masses for non-supersymmetric intersecting branes

摘要： 我们研究了在相交D-膜构型中通过角度稍微偏离其超对称值来打破超对称性的情况。 我们计算了膜世界体积上的伴随标量由于辐射修正产生的质量。 在开弦通道中，弦的两点函数仅从红外和紫外极限接收贡献。 后者是由于树级闭弦未抵消的NS-NS蝌蚪图，我们明确地从有效的Born-Infeld作用量中重现了这一点。 另一方面，红外区域通过信使及其Kaluza-Klein激发再现了有效规范理论中超对称破缺的一圈介导效应。 在本文考虑的环面设定中，它仅从破缺的N=4和N=2超对称构型接收贡献，因此总是以主导阶次导致一个tachyonic方向，与有效场论预期一致。 显示英文摘要

摘要： We consider breaking of supersymmetry in intersecting D-brane configurations by slight deviation of the angles from their supersymmetric values. We compute the masses generated by radiative corrections for the adjoint scalars on the brane world-volumes. In the open string channel, the string two-point function receives contributions only from the infrared and the ultraviolet limits. The latter is due to tree-level closed string uncanceled NS-NS tadpoles, which we explicitly reproduce from the effective Born-Infeld action. On the other hand, the infrared region reproduces the one-loop mediation of supersymmetry breaking in the effective gauge theory, via messengers and their Kaluza-Klein excitations. In the toroidal set-up considered here, it receives contributions only from broken N=4 and N=2 supersymmetric configurations, and thus always leads at leading order to a tachyonic direction, in agreement with effective field theory expectations.