Higher-spin particles at high-energy colliders Criado, Juan C. Djouadi, Abdelhak Koivunen, Niko Raidal, Martti Veermäe, Hardi Beyond Standard Model Effective Field Theories Higher Spin Symmetry This work was supported by the Estonian Research Council grants MOBTTP135, PRG803, MOBTT5, MOBJD323 and MOBTT86, and by the EU through the European Regional Development Fund CoE program TK133 "The Dark Side of the Universe." J.C.C. is supported by the STFC under grant ST/P001246/1 and A.D. is also supported by the Junta de Andalucia through the Talentia Senior program. Using an effective field theory approach for higher-spin fields, we derive the interactions of colour singlet and electrically neutral particles with a spin higher than unity, concentrating on the spin-3/2, spin-2, spin-5/2 and spin-3 cases. We compute the decay rates and production cross sections in the main channels for spin-3/2 and spin-2 states at both electron-positron and hadron colliders, and identify the most promising novel experimental signatures for discovering such particles at the LHC. The discussion is qualitatively extended to the spin-5/2 and spin-3 cases. Higher-spin particles exhibit a rich phenomenology and have signatures that often resemble the ones of supersymmetric and extra-dimensional theories. To enable further studies of higher-spin particles at collider and beyond, we collect the relevant Feynman rules and other technical details. 2021-06-25T07:59:03Z 2021-06-25T07:59:03Z 2021-05-27 info:eu-repo/semantics/article Criado, J.C... [et al.]. Higher-spin particles at high-energy colliders. J. High Energ. Phys. 2021, 254 (2021). [https://doi.org/10.1007/JHEP05(2021)254] http://hdl.handle.net/10481/69396 10.1007/JHEP05(2021)254 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España Springer