Multi-Emission Kernels for Parton Branching Algorithms

Löschner, Maximilian; Plätzer, Simon; Dore, Emma Simpson

doi:10.48550/arxiv.2112.14454

Cited by 10 publications

(13 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A soft-collinear overlap removal technique was discussed in [742] and implemented in both SHERPA and PYTHIA. Computations of relevant splitting functions have been performed in [743], providing systematic power counting and highlighting the relation between recoil scheme, partitioning of soft radiation, and the leading power expansion. These computations can be applied to both probabilistic and amplitude-level shower algorithms.…”

Section: Fully Differential Higher-order Correctionsmentioning

confidence: 99%

Event Generators for High-Energy Physics Experiments

Campbell¹,

Diefenthaler²,

Hobbs³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

Section: Fully Differential Higher-order Correctionsmentioning

confidence: 99%

Event Generators for High-Energy Physics Experiments

Campbell¹,

Diefenthaler²,

Hobbs³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…This motivates more detailed studies comparing analytic calculations with real LHC data. There has recently been work on implementing triple collinear splitting functions into parton showers [163][164][165][166][167]. We believe that this is particularly interesting in light of the measurement of multi-particle correlators [30], and the recent improvements in the analytic studies of these observables.…”

Section: Qcd Celestial Data To Twist-8mentioning

confidence: 99%

Celestial Blocks and Transverse Spin in the Three-Point Energy Correlator

Chen¹,

Moult²,

Sandor³

et al. 2022

Preprint

View full text Add to dashboard Cite

Quantitative theoretical techniques for understanding the substructure of jets at the LHC enable new insights into the dynamics of QCD, and novel approaches to search for new physics. Recently, there has been a program to reformulate jet substructure in terms of correlation functions, E( n 1 )E( n 2 ) • • • E( n k ) , of light-ray operators, E( n), allowing the application of techniques developed in the study of Conformal Field Theories (CFTs). In this paper we further develop these techniques in the particular context of the three-point correlator E( n 1 )E( n 2 )E( n 3 ) , using recently computed perturbative data in both QCD and N = 4 sYM. We derive the celestial blocks appearing in the light-ray operator product expansion (OPE) of the three-point correlator, and use the Lorentzian inversion formula to extract the spectrum of light-ray operators appearing in the expansion, showing, in particular, that the OPE data is analytic in transverse spin. Throughout our presentation, we highlight the relation between the OPE approach, and more standard splitting function based approaches of perturbative QCD, emphasizing the utility of the OPE approach for incorporating symmetries in jet substructure calculations. We hope that our presentation introduces a number of new techniques to the jet substructure community, and also illustrates the phenomenological relevance of the study of light-ray operators in the OPE limit to the CFT community.

show abstract

“…One might hope [97] to have a parton shower based on parton splitting probabilities calculated at order α 2 s and beyond. There has been recent progress in this direction [98][99][100][101][102][103][104][105]. The theoretical issues that must be addressed are similar to the issues involved in designing the subtractions for a perturbative calculation of jet cross sections at next-to-next-to-leading order.…”

Section: Nlo Showermentioning

confidence: 99%

Future prospects for parton showers

Darvishi¹,

Höche

Masouminia³

et al. 2022

Preprint

View full text Add to dashboard Cite

In this brief Snowmass White Paper for the Theory Frontier, we argue that there have been important recent developments in the algorithms used to generate a simulated parton shower and that further progress can be achieved in the coming decade. A much more detailed exposition can be found in a corresponding White Paper of the Energy Frontier. * Herwig, however rearranges the ordering of splittings in its default parton shower so that larger angle splittings come first.

show abstract

Multi-Emission Kernels for Parton Branching Algorithms

Cited by 10 publications

References 33 publications

Event Generators for High-Energy Physics Experiments

Event Generators for High-Energy Physics Experiments

Celestial Blocks and Transverse Spin in the Three-Point Energy Correlator

Future prospects for parton showers

Contact Info

Product

Resources

About