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1. More 5d KK theories

   Bhardwaj, Lakshya (May 2020, ArXivorg)

   In this note, we discuss circle compactifications of 6d SCFTs for which a geometric M-theory construction is not known in previous literature. 

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2. Surface defects in holographic 5d SCFTs

   https://doi.org/10.1007/JHEP04(2021)134  

   Gutperle, Michael; Uhlemann, Christoph F. (April 2021, Journal of High Energy Physics)

   null (Ed.)

   A bstract We use holography to study codimension-2 surface defects in 5d SCFTs engineered by ( p , q ) 5-brane webs. The three-dimensional defects are realized by D3-branes ending on the brane web. We identify the holographic representation of the defects in Type IIB AdS 6 solutions as probe D3-branes, and study conformal and non-conformal defects which, respectively, preserve one half and one quarter of the supersymmetry. For a sample of 5d SCFTs, including the T N theories, we provide explicit solutions for conformal and non-conformal defects. For the conformal defects we obtain their contribution to the free energy on S 5 . 

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3. On the classification of 5d SCFTs

   https://doi.org/10.1007/JHEP09(2020)007  

   Bhardwaj, Lakshya (September 2019, ArXivorg)

   We determine all 5d SCFTs upto rank three by studying RG flows of 5d KK theories. Our analysis reveals the existence of new rank one and rank two 5d SCFTs not captured by previous classifications. In addition to that, we provide for the first time a systematic and conjecturally complete classification of rank three 5d SCFTs. Our methods are based on a recently studied geometric description of 5d KK theories, thus demonstrating the utility of these geometric descriptions. It is straightforward, though computationally intensive, to extend this work and systematically classify 5d SCFTs of higher ranks (greater than or equal to four) by using the geometric description of 5d KK theories. 

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4. The axion mass from 5D small instantons

   https://doi.org/10.1007/JHEP03(2020)063  

   Gherghetta, Tony; Khoze, Valentin V.; Pomarol, Alex; Shirman, Yuri (March 2020, Journal of High Energy Physics)
5. Swampland constraints on 5d N = 1 supergravity

   https://doi.org/10.1007/JHEP07(2020)080  

   Katz, S; Kim, H; Tarazi, H; Vafa, C (July 2020, Journal of high energy physics)

   null (Ed.)