EDITORS' SUGGESTION
The authors prove (under some mild assumptions) the conjecture about the rationality of the trace anomaly central charges and in = 2 superconformal theories. They work on the Higgs branch and use rigorous results from vertex operator algebras in their arguments. This closes some shortcomings of the Coulomb branch arguments and rigorously shows the generality of this intriguing property.
Leonardo Rastelli and Brandon C. Rayhaun
Phys. Rev. D 109, 105018 (2024)
EDITORS' SUGGESTION
Scattering processes that produce multiple jets in the final states are abundant at the Large Hadron Collider, which makes the computation of the corresponding theoretical high-precision predictions a crucial task to perform. By using different methods, two different collaborations computed the five-parton scattering amplitudes at two-loops in Quantum Chromodynamics (QCD) for any number of colors, that is including all non-planar Feynman diagrams. In PhysRevD.109.094023 and PhysRevD.109.094024, the authors employed analytic reconstruction methods for amplitude computations, which expose drastically simpler structures in two-loop helicity amplitudes. The authors of the other collaboration in PhysRevD.109.094025 used tensor projection in the ’t Hooft-Veltman scheme and found analytic results for the scattering amplitudes expressed in terms of massless pentagon functions.
Giuseppe De Laurentis, Harald Ita, Maximillian Klinkert, and Vasily Sotnikov
Phys. Rev. D 109, 094023 (2024)
Giuseppe De Laurentis, Harald Ita, and Vasily Sotnikov
Phys. Rev. D 109, 094024 (2024)
Bakul Agarwal et al.
Phys. Rev. D 109, 094025 (2024)
EDITORS' SUGGESTION
This paper deals with interacting quantum field theories on a causal set. Free theories on these sets have been copiously discussed but here, the authors develop perturbative expansions, in-in and in-out correlators and make a suggestion on how to define an S-matrix, a daunting task, given the absence of Cauchy surfaces in a causal set.
Emma Albertini, Fay Dowker, Arad Nasiri, and Stav Zalel
Phys. Rev. D 109, 106014 (2024)
EDITORS' SUGGESTION
The authors discuss QCD with adjoint massless fermions and its deformation by the two (classically) marginal four-fermion operators, only one of which respects a noninvertible symmetry. They compute the functions of the two operators and discuss in detail their behavior in the IR, thereby clarifying some confusion in the literature stemming from different approaches, confinement behavior and treatment on the lattice. These are important results for this of confinement and lattice formulations.
Aleksey Cherman and Maria Neuzil
Phys. Rev. D 109, 105014 (2024)
EDITORS' SUGGESTION
In a series of two papers, the authors introduce a new method to compute the tree-level -gluon scattering amplitudes in anti-de Sitter spacetime (AdS) space within the AdS/CFT duality. Working with Mellin amplitudes, the authors propose Feynman rules and show that they take a similar form as those in flat space. This intriguing similarity led the authors to propose a novel dictionary: comprehensive rules that bridge AdS Mellin amplitudes with flat-space gluon amplitudes.
Jinwei Chu and Savan Kharel
Phys. Rev. D 109, L101901 (2024)
Jinwei Chu and Savan Kharel
Phys. Rev. D 109, 106003 (2024)