Practical derivations of fermion and gauge boson reduction formulae in curved spacetimes
: Huhtala, Jesse; Vilja, Iiro
Publisher: Springer Nature
: 2024
: European Physical Journal C: Particles and Fields
: European Physical Journal C
: 624
: 84
: 6
: 1434-6044
: 1434-6052
DOI: https://doi.org/10.1140/epjc/s10052-024-12996-z
: https://research.utu.fi/converis/portal/detail/Publication/457038636
: https://arxiv.org/abs/2402.18230
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.
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J.H. wants to thank the Finnish Cultural Foundation for providing a part of the funding used for this research.
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