N=1/2 super Yang-Mills theory on euclidean AdS2 x S2 -: art. no. 010

被引：0
|
作者：
Imaanpur, A
Parvizi, S
机构：
[1] Inst Studies Theoret Phys & Math IPM, Tehran, Iran
[2] Tarbiat Modares Univ, Sch Sci, Dept Phys, Tehran, Iran
[3] Ctr Adv Math Sci, Beirut, Lebanon
来源：
JOURNAL OF HIGH ENERGY PHYSICS | 2004年 / 07期
关键词：
D-branes; supersymmetric effective theories;
D O I：
暂无
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We study D-branes in the background of euclidean AdS(2) x S-2 with a graviphoton field turned on. As the background is not Ricci flat, the graviphoton field must have both self-dual and antiself-dual parts. This, in general, will break all the supersymmetries on the brane. However, we show that there exists a limit for which one can restore half of the supersymmetries. Further, we show that in this limit, the N=1/2 SYM lagrangian on flat space can be lifted on to the euclidean AdS(2) x S-2 preserving the same amount of supersymmetries as in the flat case. We observe that without the C-dependent terms present in the action this lift is not possible.
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页数：12
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