Zobrazeno 1 - 10
of 294
pro vyhledávání: '"Terning, John"'
The kinetic mixing of two U(1) gauge theories can result in a massless photon that has perturbative couplings to both electric and magnetic charges. This framework can be used to perturbatively calculate in a quantum field theory with both kinds of c
Externí odkaz:
http://arxiv.org/abs/2407.13823
It is usually assumed that $4D$ instantons can only arise in non-Abelian theories. In this paper we re-examine this conventional wisdom by explicitly constructing instantons in an Abelian gauge theory: ${\rm QED}_4$ with $N_f$ flavors of Dirac fermio
Externí odkaz:
http://arxiv.org/abs/2406.13738
The constructive method of determining amplitudes from on-shell pole structure has been shown to be promising for calculating amplitudes in a more efficient way. However, challenges have been encountered when a massless internal photon is involved in
Externí odkaz:
http://arxiv.org/abs/2312.11621
We study representations of the Poincar\'e group that have a privileged transformation law along a p-dimensional hyperplane, and uncover their associated spinor helicity variables in D spacetime dimensions. Our novel representations generalize the re
Externí odkaz:
http://arxiv.org/abs/2212.08672
We construct the Faddeev-Kulish dressed multiparticle states of electrically and magnetically charged particles, incorporating the effects of real and virtual soft photons. We calculate the properties of such dressed states under Lorentz transformati
Externí odkaz:
http://arxiv.org/abs/2209.03369
We resolve the decades old mystery of what happens when a positron scatters off a minimal GUT monopole in an s-wave, first discussed by Callan in 1983. Using the language of on-shell amplitudes and pairwise helicity we show that the final state conta
Externí odkaz:
http://arxiv.org/abs/2109.01145
Publikováno v:
Phys. Rev. Lett. 127, 041601 (2021)
In this work we extend the definition of asymptotic multi-particle states of the $S$-matrix, beyond the direct products of one-particle states. We identify new quantum numbers which we call pairwise helicities, or $q_{ij}$, associated with asymptotic
Externí odkaz:
http://arxiv.org/abs/2010.13794
Publikováno v:
JHEP 2012 (2020) 153
Theories with both electric and magnetic charges ("mutually non-local" theories) have several major obstacles to calculating scattering amplitudes. Even when the interaction arises through the kinetic mixing of two, otherwise independent, U(1)'s, so
Externí odkaz:
http://arxiv.org/abs/2010.02232