Zobrazeno 1 - 10
of 51 950
pro vyhledávání: '"scattering amplitudes"'
Pion scattering amplitudes were recently found to vanish on specific kinematic loci, and to factorise close to these loci into a product of two lower-point amplitudes of an extended theory. We propose a diagrammatic representation of pion amplitudes
Externí odkaz:
http://arxiv.org/abs/2412.14858
We investigate $2 \to 3$ QCD scattering amplitudes in multi-Regge kinematics, i.e. where the final partons are strongly ordered in rapidity. In this regime amplitudes exhibit intriguing factorisation properties which can be understood in terms of eff
Externí odkaz:
http://arxiv.org/abs/2411.14050
We calculate n-point hard string scattering amplitudes (HSSA) with n-2 tachyons and 2 tensor states at arbitrary mass levels. We discover the stringy scaling behavior of these HSSA. It is found that for HSSA with more than 2 transverse directions, th
Externí odkaz:
http://arxiv.org/abs/2412.19640
Autor:
Correia, Miguel, Hannesdottir, Holmfridur S., Isabella, Giulia, Wolz, Anna M., Zhou, Zihan, Giroux, Mathieu, Mizera, Sebastian, Pasiecznik, Celina
These lecture notes explain how classical gravitational physics emerges from scattering amplitudes. We emphasize the role of different kinematic regimes in probing various aspects of bound and unbound problems, as illustrated by the Hydrogen atom exa
Externí odkaz:
http://arxiv.org/abs/2412.11649
Autor:
Capatti, Zeno, Zeng, Mao
We present a systematic diagrammatic investigation of the classical limit of observables computed from scattering amplitudes in quantum field theory through the Kosower-Maybee-O'Connell (KMOC) formalism, motivated by the study of gravitational waves
Externí odkaz:
http://arxiv.org/abs/2412.10864
We identify an extended Poincare symmetry $ISO(2) \times ISO(3,1)$ for on-shell massive scattering amplitudes, transforming under the $U(2)$ Little group symmetry. Thus the one-particle state involves in both spin and transversality $t$ (related to c
Externí odkaz:
http://arxiv.org/abs/2412.03762