https://doi.org/10.1140/epjc/s10052-025-14036-w
Regular Article - Theoretical Physics
Some simple theories of gravity with propagating nonmetricity
1
Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, 464-8602, Nagoya, Japan
2
International School for Advanced Studies, via Bonomea 265, 34136, Trieste, Italy
3
INFN, Sezione di Trieste, Trieste, Italy
a
mikura.yusuke.s8@s.mail.nagoya-u.ac.jp
Received:
22
September
2024
Accepted:
5
March
2025
Published online:
2
April
2025
We investigate symmetric metric-affine theories of gravity with a Lagrangian containing all operators of dimension up to four that are relevant to free propagation in flat space. Complementing recent work in the antisymmetric case, we derive the conditions for the existence of a single massive particle with good properties, in addition to the graviton.
© The Author(s) 2025
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