TY - JOUR

T1 - Exact electric-magnetic duality in N = 2 supersymmetric QCD theories

AU - Aharony, Ofer

AU - Yankielowicz, Shimon

N1 - Funding Information:
I Work supported in part by the US-Israel Binational Science Foundation, by GIF (the German-Israeli Foundation for Scientific Research), and by the Israel Academy of Science. 2 Work supported in part by the Clore Scholars Programme.

PY - 1996/8/5

Y1 - 1996/8/5

N2 - We analyze the Coulomb phase of theories of N = 2 SQCD with SU(Nc) gauge groups which are conjectured to have exact electric-magnetic duality. We discuss the duality transformation of the particle spectrum, emphasizing the differences between the general case and the SU(2) case. Some difficulties associated with the definition of the duality transformation for a general gauge group are discussed. We compute the classical monopole spectrum of these theories, and when it is possible we use it to check the consistency of the duality. Generally these theories may have phase transitions between strong and weak coupling, which prevent the semi-classical computation from being useful for checking the duality.

AB - We analyze the Coulomb phase of theories of N = 2 SQCD with SU(Nc) gauge groups which are conjectured to have exact electric-magnetic duality. We discuss the duality transformation of the particle spectrum, emphasizing the differences between the general case and the SU(2) case. Some difficulties associated with the definition of the duality transformation for a general gauge group are discussed. We compute the classical monopole spectrum of these theories, and when it is possible we use it to check the consistency of the duality. Generally these theories may have phase transitions between strong and weak coupling, which prevent the semi-classical computation from being useful for checking the duality.

UR - http://www.scopus.com/inward/record.url?scp=0030570614&partnerID=8YFLogxK

U2 - 10.1016/0550-3213(96)00271-4

DO - 10.1016/0550-3213(96)00271-4

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AN - SCOPUS:0030570614

SN - 0550-3213

VL - 473

SP - 93

EP - 120

JO - Nuclear Physics B

JF - Nuclear Physics B

IS - 1-2

ER -