Les Houches 2021—physics at TeV colliders: report on the standard model precision wishlist

Huss, A.; Huston, J.; Jones, Stephen; Pellen, Mathieu

doi:10.1088/1361-6471/acbaec

Cited by 19 publications

(26 citation statements)

References 847 publications

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“…Over the last decade, fully-differential calculations at next-to-next-to-leading order (NNLO) in perturbative QCD have become more common [61][62][63][64]. This has been driven by the development of a number of approaches for handling infrared singularities at this order, ranging from local subtraction procedures [65][66][67][68][69][70] to non-local subtraction or slicing methods [71][72][73][74][75] and other more specialized techniques [76,77].…”

Section: Fixed-order Perturbation Theorymentioning

confidence: 99%

Event generators for high-energy physics experiments

Campbell,

Diefenthaler,

Hobbs

et al. 2024

SciPost Phys.

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We provide an overview of the status of Monte-Carlo event generators for high-energy particle physics. Guided by the experimental needs and requirements, we highlight areas of active development, and opportunities for future improvements. Particular emphasis is given to physics models and algorithms that are employed across a variety of experiments. These common themes in event generator development lead to a more comprehensive understanding of physics at the highest energies and intensities, and allow models to be tested against a wealth of data that have been accumulated over the past decades. A cohesive approach to event generator development will allow these models to be further improved and systematic uncertainties to be reduced, directly contributing to future experimental success. Event generators are part of a much larger ecosystem of computational tools. They typically involve a number of unknown model parameters that must be tuned to experimental data, while maintaining the integrity of the underlying physics models. Making both these data, and the analyses with which they have been obtained accessible to future users is an essential aspect of open science and data preservation. It ensures the consistency of physics models across a variety of experiments.

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Section: Fixed-order Perturbation Theorymentioning

confidence: 99%

Event generators for high-energy physics experiments

Campbell,

Diefenthaler,

Hobbs

et al. 2024

SciPost Phys.

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“…We have made the choice to absorb this factor in the periods to simplify the presentation of some formulae. 2 Any given elliptic curve (2.11) is isomorphic to a complex torus T = C/Λ (1,τ ) with lattice Λ (1,τ ) = Z + Zτ [8,61] where we have dropped the label α to keep the notation more readable. This isomorphism (i.e., change of variables) is realized through Abel's map, which maps any point (x, y) on the elliptic curve onto two points z ± on the torus (which is, in fact, a double cover of the elliptic curve)…”

Section: Jhep05(2024)239mentioning

confidence: 99%

“…As before, we let J (2) = U (2) • J (1) such that B (2) = dU (2) • U (2) −1 + U (2) • B (1) • U (2) −1 .…”

Section: Jhep05(2024)239mentioning

confidence: 99%

The soaring kite: a tale of two punctured tori

Giroux,

Pokraka,

Porkert

et al. 2024

J. High Energ. Phys.

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We consider the 5-mass kite family of self-energy Feynman integrals and present a systematic approach for constructing an ε-form basis, along with its differential equation pulled back onto the moduli space of two tori. Each torus is associated with one of the two distinct elliptic curves this family depends on. We demonstrate how the locations of relevant punctures, which are required to parametrize the full image of the kinematic space onto this moduli space, can be extracted from integrals over maximal cuts. A boundary value is provided such that the differential equation is systematically solved in terms of iterated integrals over g-kernels and modular forms. Then, the numerical evaluation of the master integrals is discussed, and important challenges in that regard are emphasized. In an appendix, we introduce new relations between g-kernels.

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“…An up-to-date reference list of processes which are desired with the highest accuracy possible can be found in Ref. [1].…”

Section: Introductionmentioning

confidence: 99%

Two-Loop Amplitude Reduction with HELAC

Canko,

Bevilacqua,

Papadopoulos

2023

Proceedings of 16th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology — P

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We discuss recent progress towards extending the H framework to the calculation of twoloop amplitudes. A general algorithm for the automated computation of two-loop integrands is described. The algorithm covers all the steps of the computation, from the generation of loop topologies up to the construction of recursion relations for two-loop integrands. Finally, first steps towards the formulation of a new approach for reducing two-loop amplitudes to a basis of master integrals are discussed.

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Les Houches 2021—physics at TeV colliders: report on the standard model precision wishlist

Cited by 19 publications

References 847 publications

Event generators for high-energy physics experiments

Event generators for high-energy physics experiments

The soaring kite: a tale of two punctured tori

Two-Loop Amplitude Reduction with HELAC

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