Pith. sign in

REVIEW 8 cited by

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1312.7878 v1 pith:IUZMNXEF submitted 2013-12-30 hep-th math.AG

Into the Amplituhedron

classification hep-th math.AG
keywords amplituhedrongeometrycomputingintegrandadditionamplitudebehaviorcase
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

We initiate an exploration of the physics and geometry of the amplituhedron, starting with the simplest case of the integrand for four-particle scattering in planar N=4 SYM. We show how the textbook structure of the unitarity double-cut follows from the positive geometry. We also use the geometry to expose the behavior of the multicollinear limit, providing a direct motivation for studying the logarithm of the amplitude. In addition to computing the two and three-loop integrands, we explore various lower-dimensional faces of the amplituhedron, thereby computing non-trivial cuts of the integrand to all loop orders.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 8 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Landau Analysis of One-Cycle Negative Geometries

    hep-th 2026-04 unverdicted novelty 7.0

    One-cycle negative geometries in N=4 SYM have singularities only at z=-1, 0, and infinity to all loop orders.

  2. Notes on off-shell conformal integrals and correlation functions at five points

    hep-th 2025-12 conditional novelty 6.0

    A basis of six uniform-transcendental five-point off-shell conformal integrals is constructed and mapped to known families, yielding symbol-level two-loop results for half-BPS correlators.

  3. Leading singularities and chambers of Correlahedron

    hep-th 2025-05 unverdicted novelty 6.0

    Four-loop four-point correlator integrand in planar N=4 SYM decomposes into chamber forms identical to three loops times local integrands, with leading singularities as linear combinations of those forms and a diagona...

  4. Recursive construction for expansions of tree Yang-Mills amplitudes from soft theorem

    hep-th 2023-11 unverdicted novelty 6.0

    A recursive construction expands tree YM amplitudes to YMS and BAS amplitudes from soft theorems while preserving gauge invariance at each step.

  5. Brave new categorical spectral positive Schubert geometry and the categorical Dual Amplituhedron

    math.CT 2026-06 unverdicted novelty 5.0

    The dissertation rewrites positive Schubert geometry via spectral algebraic geometry and differential cohesion to construct a categorical dual to the Amplituhedron with a De Rham volume.

  6. Multi-Loop Negative Geometries

    hep-th 2026-05 unverdicted novelty 5.0

    Explicit three-loop computation of negative geometries for F(g,z) with all-loop resummation of one-cycle diagrams and extraction of the cusp anomalous dimension via z-integration.

  7. New recursive construction for tree NLSM and SG amplitudes, and new understanding of enhanced Adler zero

    hep-th 2023-10 unverdicted novelty 5.0

    Recursive construction of off-shell NLSM and SG tree amplitudes from bootstrapped low-point ones via universal soft behaviors, automatically producing enhanced Adler zeros on-shell.

  8. Expanding single trace YMS amplitudes with gauge invariant coefficients

    hep-th 2023-06 unverdicted novelty 3.0

    A recursive expansion of single-trace YMS amplitudes is built from soft theorems; the result is gauge invariant, permutation symmetric, and equivalent to the Cheung-Mangan covariant color-kinematic duality construction.