https://doi.org/10.1140/epjc/s10052-024-12996-z
Regular Article - Theoretical Physics
Practical derivations of fermion and gauge boson reduction formulae in curved spacetimes
Laboratory of Theoretical Physics, Department of Physics and Astronomy, Faculty of Science, University of Turku, 20014, Turku, Finland
Received:
23
April
2024
Accepted:
7
June
2024
Published online:
21
June
2024
LSZ-type reduction formulae are derived for gauge fields and fermions in curved spacetime. The formulae are derived using a conserved current method applicable also to flat spacetimes. The method generalizes to more general quantum field theories. The formulae are then applied to a couple of basic problems to illustrate their use.
© The Author(s) 2024
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