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Curve integral formula for the Möbius strip
Amit Suthar
The paper extends the curve integral formula for scattering amplitudes of colored scalars to non‑orientable surfaces such as the Möbius strip, using quasi‑cluster algebras and a do…
Symplectic Grassmannian description of the Coulomb branch three and four point amplitudes
Veronica Calvo Cortes, Yassine El Maazouz, Subramanya Hegde +1
We present a formulation of the three- and four-point amplitudes on the Coulomb branch of N=4 SYM as integrals over the symplectic Grassmannian. We demonstrate that their kinematic…
Positive Geometries, Corolla Polynomial and Gauge Theory Amplitudes
Alok Laddha, Amit Suthar
Arkani-Hamed, Bai, He, and Yan (ABHY) discovered a convex realisation of the associahedron whose combinatorial and geometric structure generates tree-level amplitudes in bi-adjoint…
On-shell functions on the Coulomb branch of SYM
Md. Abhishek, Subramanya Hegde, Dileep P. Jatkar +2
We study on-shell functions in the kinematic space for the Coulomb branch of SYM. We construct BCFW bridges that help us build bigger on-shell functions. As a conse…