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Article
Report number arXiv:2107.04051 ; CERN-TH-2021-103 ; OUTP-21-18P ; MCnet-21-13 ; IPPP/21/05
Title Initial State Radiation in the Herwig 7 Angular-Ordered Parton Shower
Author(s) Bewick, Gavin (Durham U., IPPP) ; Ferrario Ravasio, Silvia  (Durham U., IPPP ; Oxford U., Theor. Phys.) ; Richardson, Peter (Durham U., IPPP ; CERN) ; Seymour, Michael H. (Manchester U.)
Publication 2022-01-07
Imprint 2021-07-08
Number of pages 27
In: JHEP 01 (2022) 026
DOI 10.1007/JHEP01(2022)026
Subject category hep-ph ; Particle Physics - Phenomenology
Abstract We study the simulation of initial-state radiation in angular-ordered parton showers in order to investigate how different interpretations of the ordering variable affect the logarithmic accuracy of such showers. This also enables us to implement a recoil scheme which is consistent between final-state and initial-state radiation. We present optimal values of the strong coupling and intrinsic transverse momentum to be used in each version of the parton shower, tuned using $Z^0$-boson production at the LHC at 7 TeV. With these tuned showers, we perform a phenomenological study of the Drell-Yan process at several centre-of-mass energies.
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publication: © 2022-2025 The Authors (License: CC-BY-4.0), sponsored by SCOAP³



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 Записът е създаден на 2021-07-15, последна промяна на 2023-01-31


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