37 citations · 258 across the 20 of their papers we have counts for
21 papers
Canonical differential equations for Feynman integrals from -hypergeometric systems in the Schwinger representation
Mateo Jimenez-Santacruz, Cristhiam Lopez-Arcos, Alexander Quintero Velez
We follow a -module approach to the construction of canonical differential equations for Feynman integrals directly from their Gel'fand-Kapranov-Zelevinsky (GKZ) hypergeometric…
On the amplitude expansion of gluon correlators in
Humberto Gomez, Renann Lipinski Jusinskas, Arthur Lipstein +1
We show that tree-level gluon correlators in admit a natural expansion in terms of flat-space scattering amplitudes at all multiplicities. In particular, every …
One-loop double copy from gravity coupled to a massive vector field
Cristhiam Lopez-Arcos
In this work, we compute the one-loop four-graviton amplitudes with a massive abelian vector field (Proca) circulating in the loop. Instead of the conventional Einstein-Hilbert for…
Tree- and one-loop-level double copy for the (anti)self-dual sectors of Yang-Mills and gravity
Daniel Herrera Correa, Cristhiam Lopez-Arcos, Alexander Quintero Velez
By employing the perturbiner method we study the tree- and one-loop-level amplitudes in (anti)self-dual Yang-Mills, focusing on color-kinematics duality and double copy features; t…
One-loop -point correlators in pure gravity
Humberto Gomez, Renann Lipinski Jusinskas, Cristhiam Lopez-Arcos +1
In this work we propose a simple algebraic recursion for the complete one-loop integrands of -graviton correlators. This formula automatically yields the correct symmetry factor…
The QED four-photon amplitudes off-shell: part 2
Naser Ahmadiniaz, Cristhiam Lopez-Arcos, Misha A. Lopez-Lopez +1
This is the second one of a series of four papers devoted to a first calculation of the scalar and spinor QED four-photon amplitudes completely off-shell. We use the worldline form…
Summing Feynman diagrams in the worldline formalism
Naser Ahmadiniaz, James P. Edwards, Cristhiam Lopez-Arcos +4
The worldline formalism shares with string theory the property that it allows one to write down master integrals that effectively combine the contributions of many Feynman diagrams…
One-loop off-shell amplitudes from classical equations of motion
Humberto Gomez, Renann Lipinski Jusinskas, Cristhiam Lopez-Arcos +1
In this letter we present a recursive method for computing one-loop off-shell amplitudes in colored quantum field theories. First, we generalize the perturbiner method by recasting…
Homotopy double copy and the Kawai-Lewellen-Tye relations for the non-abelian and tensor Navier-Stokes equations
Valentina Guarin Escudero, Cristhiam Lopez-Arcos, Alexander Quintero Velez
Recently, a non-abelian generalisation of the Navier-Stokes equation that exhibits a manifest duality between colour and kinematics has been proposed by Cheung and Mangan. In this…
Manifest colour-kinematics duality and double-copy in the string-based formalism
Naser Ahmadiniaz, Filippo Maria Balli, Olindo Corradini +3
The relation for the gravity polarisation tensor as the tensor product of two gluon polarisation vectors has been well-known for a long time, but a version of this relation for mul…
Color-kinematics duality from the Bern-Kosower formalism
Naser Ahmadiniaz, Filippo Maria Balli, Cristhiam Lopez-Arcos +2
Berends-Giele currents are fundamental building blocks for on-shell amplitudes in non-abelian gauge theory. We present a novel procedure to construct them using the Bern-Kosower fo…
The QED four -- photon amplitudes off-shell: part 1
Naser Ahmadiniaz, Cristhiam Lopez-Arcos, Misha A. Lopez-Lopez +1
The QED four-photon amplitude has been well-studied by many authors, and on-shell is treated in many textbooks. However, a calculation with all four photons off-shell is presently…
The structure of gauge theories with matter
Humberto Gomez, Renann Lipinski Jusinskas, Cristhiam Lopez-Arcos +1
In this work we present an algebraic approach to the dynamics and perturbation theory at tree-level for gauge theories coupled to matter. The field theories we will consider are: C…
One-Loop Yang-Mills Integrands from Scattering Equations
Johannes Agerskov, N. E. J. Bjerrum-Bohr, Humberto Gomez +1
We investigate in the context of the scattering equations, how one-loop linear propagator integrands in gauge theories can be linked to integrands with quadratic propagators using…
-algebras and the perturbiner expansion
Cristhiam Lopez-Arcos, Alexander Quintero Vélez
Certain classical field theories admit a formal multi-particle solution, known as the perturbiner expansion, that serves as a generating function for all the tree-level scattering…
Non-planar one-loop Parke-Taylor factors in the CHY approach for quadratic propagators
Naser Ahmadiniaz, Humberto Gomez, Cristhiam Lopez-Arcos
In this work we have studied the Kleiss-Kuijf relations for the recently introduced Parke-Taylor factors at one-loop in the CHY approach, that reproduce quadratic Feynman propagato…
One-loop Parke-Taylor factors for quadratic propagators from massless scattering equations
Humberto Gomez, Cristhiam Lopez-Arcos, Pedro Talavera
In this paper we reconsider the Cachazo-He-Yuan construction (CHY) of the so called scattering amplitudes at one-loop, in order to obtain quadratic propagators. In theories with co…
Nonrelativistic limit of the abelianized ABJM model and the ADS/CMT correspondence
Cristhiam Lopez-Arcos, Jeff Murugan, Horatiu Nastase
We consider the nonrelativistic limit of the abelian reduction of the massive ABJM model proposed in \cite{Mohammed:2012gi}, obtaining a supersymmetric version of the Jackiw-Pi mod…
Abelian reductions of deformed SYM
Carlos Cardona, Cristhiam Lopez-Arcos, Horatiu Nastase
Following the work in \cite{Mohammed:2012gi}, where the massive ABJM model in 2+1 dimensions was shown to have an abelian reduction to the relativistic Landau-Ginzburg, and motivat…
Conductivity in the gravity dual to massive ABJM and the membrane paradigm
Cristhiam Lopez-Arcos, Horatiu Nastase, Francisco Rojas +1
In this paper we analyze the effect of the massive deformation of the ABJM model on the calculation of conductivity of the dual theory. We show that some of the difficulties presen…
Eliminating ambiguities for quantum corrections to strings moving in
Cristhiam Lopez-Arcos, Horatiu Nastase
We apply a physical principle, previously used to eliminate ambiguities in quantum corrections to the 2 dimensional kink, to the case of spinning strings moving in $AdS_4\times \ma…