# A covariantisation of M5-brane action in dual formulation

Journal of High Energy Physics, Jan 2018

Abstract We construct a manifestly diffeomorphic M5-brane action in dual formulation coupled to an eleven-dimensional supergravity target space. The covariantisation is carried out by using (generalised) PST technique with 5 auxiliary scalar fields, which are obtained by using a geometrical consideration as a reduction of an auxiliary 4−form of Maznytsia-Preitschopf-Sorokin. As is typical in PST-covariantised theory, our construction possesses as usual the two local PST symmetries. By using one of the local PST symmetries, the action can be reduced to the non-manifestly covariant M5-brane action in dual formulation constructed earlier by the authors. The discussion on double dimensional reduction to D4-brane, and on the comparison of on-shell action then easily follows.

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Sheng-Lan Ko, Pichet Vanichchapongjaroen. A covariantisation of M5-brane action in dual formulation, Journal of High Energy Physics, 2018, 72, DOI: 10.1007/JHEP01(2018)072