期刊
PHYSICAL REVIEW LETTERS
卷 120, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.120.071603
关键词
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资金
- NSF [PHY-1316222, PHY-1620638]
- DOE [DE-SC0009999]
- Mainz Institute for Theoretical Physics (MITP)
- Division Of Physics [1620638] Funding Source: National Science Foundation
We find the conditions for the existence of fermionic zero modes of the fundamental representation in the background of a Kaluza-Klein (KK) monopole. We show that while there is no zero mode without a real mass, a normalizable zero mode appears once the real mass is sufficiently large. This provides an elegant explanation for the known decoupling of KK monopole effects in supersymmetric theories when a large real mass term is added. We also present an application where the correct counting of KK zero modes plays an essential role in understanding the nonperturbative effects determining the low-energy dynamics.
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