Hadron-hadron collision mode in ReneSANCe-v1.3.0

Abstract

We report an implementation of the hadron-hadron (pp and pp¯) collision mode to the Monte Carlo event generator ReneSANCe — the code that was previously developed for e+e− collisions. The described extension of ReneSANCe currently contains neutral and charged current Drell-Yan processes pp[pp¯]→ZX→ℓ+ℓ−X, pp[pp¯]→W+X→ℓ+νℓX and pp[pp¯]→W−X→ℓ−ν¯ℓX. We take into account complete one-loop electroweak (EW) and one-loop QCD corrections to these processes. The calculation is based on the SANC (Support for Analytic and Numeric Calculations for experiments at colliders) modules. The generator is constructed in such a way that new processes can be easily added. The paper contains a theoretical description of the SANC approach, numerical validations and a manual. Program summary: Program Title: ReneSANCe version 1.3.0 CPC Library link to program files: https://doi.org/10.17632/wp36f7t3ft.2 Licensing provisions: GPLv3 Programming language: FORTRAN 77/90, C, C++ External routines: ROOT (https://root.cern.ch), LHAPDF (https://lhapdf.hepforge.org) Journal reference of previous version: Comput. Phys. Commun. 256 (2020) 107445 Does the new version supersede the previous version?: Yes. Reasons for the new version: Implementation of the hadron-hadron collision mode. Summary of revisions: Added support of the pp and pp¯ collision modes. Implemented neutral and charged current Drell-Yan processes. Nature of problem: Theoretical calculations at next-to-leading order in perturbation theory allow to compute higher precision amplitudes for Standard Model processes and decays. Proper treatments of UV divergences and IR singularities are performed. Solution method: Numerical integration of the precomputed differential expressions for cross sections of certain processes implemented as SANC modules [1,2]. Additional comments including restrictions and unusual features: ReneSANCe homepage https://renesance.hepforge.org. The SANC modules and codes also available at http://sanc.jinr.ru. The list of processes in the hadron-hadron collision mode is limited to pp[pp¯]→ZX→ℓ+ℓ−X, pp[p¯]→W+X→ℓ+νℓX and pp[p¯]→W−X→ℓ+ν¯ℓX. References: [1] A. Andonov, A. Arbuzov, D. Bardin, et al., Comput. Phys. Commun. 181 (2010) 305–312, arXiv:0812.4207. [2] D. Bardin et al., Phys. Rev. D 98, 013001, arXiv:1801.00125.