Results 1 to 10 of about 222,838 (270)

Δ-algebra and scattering amplitudes

Journal of High Energy Physics, 2019
In this paper we study an algebra that naturally combines two familiar operations in scattering amplitudes: computations of volumes of polytopes using triangulations and constructions of canonical forms from products of smaller ones.
Freddy Cachazo, Nick Early, Alfredo Guevara, Sebastian Mizera   +3 more
doaj   +3 more sources

String scattering amplitudes and deformed cubic string field theory

Physics Letters B, 2018
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.
Sheng-Hong Lai, Jen-Chi Lee, Taejin Lee, Yi Yang   +3 more
doaj   +4 more sources

Tropical fans, scattering equations and amplitudes [PDF]

Journal of High Energy Physics, 2021
We describe a family of tropical fans related to Grassmannian cluster algebras. These fans are related to the kinematic space of massless scattering processes in a number of ways.
James Drummond, Jack Foster, Ömer Gürdoğan, Chrysostomos Kalousios   +3 more
doaj   +2 more sources

Learning the simplicity of scattering amplitudes

SciPost Physics
The simplification and reorganization of complex expressions lies at the core of scientific progress, particularly in theoretical high-energy physics.
Clifford Cheung, Aurélien Dersy, Matthew D. Schwartz
doaj   +2 more sources

Massive color-kinematics duality and double-copy for Kaluza-Klein scattering amplitudes

Journal of High Energy Physics, 2023
We study the structure of scattering amplitudes of massive Kaluza-Klein (KK) states under toroidal compactification. We present a shifting method to quantitatively derive the scattering amplitudes of massive KK gauge bosons and KK gravitons from the ...
Yao Li, Yan-Feng Hang, Hong-Jian He
doaj   +1 more source

Natural boundaries for scattering amplitudes

SciPost Physics, 2023
Singularities, such as poles and branch points, play a crucial role in investigating the analytic properties of scattering amplitudes that inform new computational techniques.
Sebastian Mizera
doaj   +1 more source

Learning scattering amplitudes by heart

Physics Letters B, 2021
The canonical forms associated to scattering amplitudes of planar Feynman diagrams are interpreted in terms of masses of projectives, defined as the modulus of their central charges, in the hearts of certain t-structures of derived categories of quiver ...
Severin Barmeier, Koushik Ray
doaj   +1 more source

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
doaj   +1 more source

Faddeev-type equations for three-body symmetry violating scattering amplitudes [PDF]

, 2010
The equations which relate three-body and two-body symmetry violating scattering amplitudes are derived in the first order of symmetry violating interactions.
L. D. Faddeev, Vladimir Gudkov, W. Glöckle, Young-Ho Song   +3 more
core   +3 more sources

Dual Identities inside the Gluon and the Graviton Scattering Amplitudes [PDF]

, 2010
Recently, Bern, Carrasco and Johansson conjectured dual identities inside the gluon tree scattering amplitudes. In this paper, we use the properties of the heterotic string and open string tree scattering amplitudes to refine and derive these dual ...
CJ Goebel, CR Mafra, D Spehler, D Zhu, DJ Gross, DJ Gross, E Plahte, FA Berends, FA Berends, H Kawai, J Polchinski, J Polchinski, JF Gunion, LJ Dixon, ML Mangano, ML Mangano, ML Mangano, NEJ Bjerrum-Bohr, NEJ Bjerrum-Bohr, P Causmaecker De, P Cvitanovic, R Gastmans, R Kleiss, R Kleiss, S.-H. Henry Tye, V Duca Del, Yang Zhang, Z Bern, Z Bern, Z Bern, Z Xu   +30 more
core   +2 more sources