Scattering equations and string theory amplitudes

TY - JOUR

T1 - Scattering equations and string theory amplitudes

AU - Bjerrum-Bohr, N. Emil J.

AU - Damgaard, Poul Henrik

AU - Tourkine, Piotr

AU - Vanhove, Pierre

PY - 2014/11/5

Y1 - 2014/11/5

N2 - Scattering equations for tree-level amplitudes are viewed in the context of string theory. To this end we are led to define a new dual model whose amplitudes coincide with string theory in both the small and large α′ limit, computed algebraically on the surface of solutions to the scattering equations. Because it has support only on the scattering equations, it can be solved exactly, yielding a simple resummed model for α′ corrections to all orders. We use the same idea to generalize scattering equations to amplitudes with fermions and any mixture of scalars, gluons, and fermions. In all cases checked we find exact agreement with known results.

AB - Scattering equations for tree-level amplitudes are viewed in the context of string theory. To this end we are led to define a new dual model whose amplitudes coincide with string theory in both the small and large α′ limit, computed algebraically on the surface of solutions to the scattering equations. Because it has support only on the scattering equations, it can be solved exactly, yielding a simple resummed model for α′ corrections to all orders. We use the same idea to generalize scattering equations to amplitudes with fermions and any mixture of scalars, gluons, and fermions. In all cases checked we find exact agreement with known results.

U2 - 10.1103/PhysRevD.90.106002

DO - 10.1103/PhysRevD.90.106002

M3 - Journal article

SN - 1550-7998

VL - 90

JO - Physical Review D (Particles, Fields, Gravitation and Cosmology)

JF - Physical Review D (Particles, Fields, Gravitation and Cosmology)

M1 - 106002

ER -