Results 21 to 30 of about 2,118,889 (347)
String Scattering Amplitudes and Deformed Cubic String Field Theory
Physics Letters B, 2017 We study string scattering amplitudes by using the deformed cubic string field theory which is equivalent to the string field theory in the proper-time gauge.
Lai, Sheng-Hong +3 more
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The sub-leading scattering waveform from amplitudes [PDF]
Journal of High Energy Physics, 2023 We compute the next-to-leading order term in the scattering waveform of uncharged black holes in classical general relativity and of half-BPS black holes in N $$ \mathcal{N} $$ = 8 supergravity.
Aidan Herderschee, Radu Roiban, Fei Teng
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Scattering amplitudes of fermions on monopoles
Journal of High Energy Physics, 2023 We consider scattering processes involving massless fermions and ’t Hooft-Polyakov magnetic monopoles in a minimal SU(2) model and in the Grand Unified SU(5) theory.
Valentin V. Khoze
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Scattering amplitudes and electromagnetic horizons
Journal of High Energy Physics, 2023 We consider the scattering of charged particles on particular electromagnetic fields which have properties analogous to gravitational horizons. Classically, particles become causally excluded from regions of spacetime beyond a null surface which we ...
Anton Ilderton, William Lindved
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The SAGEX review on scattering amplitudes Chapter 7: Positive geometry of scattering amplitudes [PDF]
Journal of Physics A: Mathematical and Theoretical, 2022 Abstract Scattering amplitudes are both a wonderful playground to discover novel ideas in quantum field theory and simultaneously of immense phenomenological importance to make precision predictions for e.g. particle collider observables and more recently also for gravitational wave signals. In this review chapter, we give an overview of
Enrico Herrmann, Jaroslav Trnka
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Massive Scattering Amplitudes in Six Dimensions
Journal of High Energy Physics, 2019 We show that a natural spinor-helicity formalism that can describe massive scattering amplitudes exists in $D=6$ dimensions. This is arranged by having helicity spinors carry an index in the Dirac spinor {\bf 4} of the massive little group, $SO(5) \sim ...
Jha, Rishabh +2 more
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Soft radiation from scattering amplitudes revisited [PDF]
Journal of High Energy Physics, 2021 We apply the recently developed formalism by Kosower, Maybee and O’Connell (KMOC) [12] to analyse the soft electromagnetic and soft gravitational radiation emitted by particles without spin in D ≥ 4 dimensions.
A. Manu +3 more
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Crossing beyond scattering amplitudes
Journal of High Energy PhysicsWe find that different asymptotic measurements in quantum field theory can be related to one another through new versions of crossing symmetry. Assuming analyticity, we conjecture generalized crossing relations for multi-particle processes and the ...
Simon Caron-Huot +3 more
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Post-Newtonian waveforms from spinning scattering amplitudes [PDF]
Journal of High Energy Physics, 2022 We derive the classical gravitational radiation from an aligned spin binary black hole on closed orbits, using a dictionary built from the 5-point QFT scattering amplitude of two massive particles exchanging and emitting a graviton.
Yilber Fabian Bautista, Nils Siemonsen
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Gravitational shock waves and scattering amplitudes [PDF]
Journal of High Energy Physics, 2020 We study gravitational shock waves using scattering amplitude techniques. After first reviewing the derivation in General Relativity as an ultrarelativistic boost of a Schwarzschild solution, we provide an alternative derivation by exploiting a novel ...
Andrea Cristofoli
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