期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 5, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP05(2016)184
关键词
Higher Spin Gravity; AdS-CFT Correspondence
资金
- ERC [290456]
- STFC Consolidated grant [ST/L00044X/1]
- Russian Science Foundation [14-42-00047]
- Science and Technology Facilities Council [ST/L00044X/1, ST/J000353/1] Funding Source: researchfish
- Russian Science Foundation [14-42-00047] Funding Source: Russian Science Foundation
- STFC [ST/J000353/1, ST/L00044X/1] Funding Source: UKRI
We consider an interacting theory of an infinite tower of massless higher-spin fields in flat space with cubic vertices and their coupling constants found previously by Metsaev. We compute the one-loop bubble diagram part of the self-energy of the spin 0 member of the tower by summing up all higher-spin loop contributions. We find that the result contains an exponentially UV divergent part and we discuss how it could be cancelled by a tadpole contribution depending on yet to be determined quartic interaction vertex. We also compute the tree-level four-scalar scattering amplitude due to all higher-spin exchanges and discuss its inconsistency with the BCFW constructibility condition. We comment on possible relation to similar computations in AdS background in connection with AdS/CFT.
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