PanScales parton showers for hadron collisions: formulation and fixed-order studies - Archive ouverte HAL
Article Dans Une Revue Journal of High Energy Physics Année : 2022

PanScales parton showers for hadron collisions: formulation and fixed-order studies

Melissa van Beekveld
  • Fonction : Auteur
Silvia Ferrario Ravasio
  • Fonction : Auteur
Gavin P. Salam
  • Fonction : Auteur
Gregory Soyez
Rob Verheyen
  • Fonction : Auteur

Résumé

We formulate PanScales parton showers for hadron collisions so as to achieve next-to-leading logarithmic (NLL) accuracy across a broad set of observables. We do so specifically for colour singlet production. Relative to the existing PanScales final-state showers, the main new question is that of how to redistribute momentum imbalances from initial-state branching across the remainder of the event. We presents tests of the showers at fixed order, including the treatment of full colour for soft-collinear emissions and of spin correlations in both the soft and collinear domains. We also include comparisons to a formulation of a standard dipole shower, the current leading-logarithmic state of the art. A forthcoming companion paper will explore all-order tests of the new showers.

Dates et versions

hal-03672824 , version 1 (19-05-2022)

Identifiants

Citer

Melissa van Beekveld, Silvia Ferrario Ravasio, Gavin P. Salam, Alba Soto-Ontoso, Gregory Soyez, et al.. PanScales parton showers for hadron collisions: formulation and fixed-order studies. Journal of High Energy Physics, 2022, 11, pp.019. ⟨10.1007/JHEP11(2022)019⟩. ⟨hal-03672824⟩
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