@article{75374a866a2f4dd6bf58adeadda41351,
title = "On Lorentz-invariant bispin-2 theories",
abstract = "We investigate a Lorentz invariant action that is quadratic in two rank-2 symmetric tensor fields in Minkowski spacetime. We apply a scalar-vector-tensor decomposition to two tensor fields by virtue of three-dimensional rotation invariance of Minkowski spacetime and classify theories with 7 degrees of freedom based on the Hamiltonian analysis. We find two new theories, which cannot be mapped from the linearized Hassan-Rosen bigravity. In these theories, the new mass interactions can be allowed thanks to the transverse diffeomorphism invariance of action.",
author = "Rampei Kimura and Atsushi Naruko and Daisuke Yamauchi",
note = "Funding Information: We are grateful to Norihiro Tanahashi for the initial collaboration in the early stage of this work. A. N. also thanks Takahiro Tanaka for fruitful discussion and useful suggestions. This work was supported in part by JSPS Grants-in-Aid for Scientific Research No. JP17K14304 (D. Y.), No. JP19H01891 (A. N. and D. Y.), and No. 20H05852 (A. N.). Publisher Copyright: {\textcopyright} 2021 authors. Published by the American Physical Society.",
year = "2021",
month = aug,
day = "15",
doi = "10.1103/PhysRevD.104.044021",
language = "English",
volume = "104",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "4",
}