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Journal Article

Gravitational Properties of the Proca Field

MPS-Authors
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Rahman,  Rakibur
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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1807.10284.pdf
(Preprint), 214KB

nuclphysb.2018.09.009.pdf
(Publisher version), 321KB

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Citation

Chowdhury, T. A., Rahman, R., & Sabuj, Z. A. (2018). Gravitational Properties of the Proca Field. Nuclear Physics B, 936, 364-382. doi:10.1016/j.nuclphysb.2018.09.009.


Cite as: https://hdl.handle.net/21.11116/0000-0001-EA3A-7
Abstract
We study various properties of a Proca field coupled to gravity through
minimal and quadrupole interactions, described by a 2-parameter family of
Lagrangians. Stueckelberg decomposition of the effective theory spells out a
model-dependent upper bound on the ultraviolet cutoff, parametrically larger
than the Proca mass. A shock-wave analysis of the theory constrains its
parameter space by requiring null-energy condition and the absence of negative
time delays in high-energy scattering. Derived from unitarity and analyticity
of scattering amplitudes, positivity bounds on the effective theory have an
important bearing on the ultraviolet cutoff.