Accurate simulation of W, Z, and Higgs boson decays in Sherpa

被引：14
作者：
Krauss, Frank [1 ]
Lindert, Jonas M. [1 ]
Linten, Robin [1 ]
Schonherr, Marek [2 ]
机构：
[1] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE, England
[2] CERN, Theoret Phys Dept, CH-1211 Geneva 23, Switzerland
来源：
EUROPEAN PHYSICAL JOURNAL C | 2019年 / 79卷 / 02期
关键词：
2-LOOP QCD CORRECTIONS; QUARK FORM-FACTORS; ELECTROWEAK RADIATIVE-CORRECTIONS; DRELL-YAN PROCESSES; LOOP; REDUCTION; ORDER;
D O I：
10.1140/epjc/s10052-019-6614-x
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We discuss the inclusion of next-to-next-to leading order electromagnetic and of next-to leading order electroweak corrections to the leptonic decays of weak gauge and Higgs bosons in the Sherpa event generator. To this end, we modify the Yennie- Frautschi-Suura scheme for the resummation of soft photon corrections and its systematic improvement with fixed-order calculations, to also include the effect of virtual corrections due to the exchange of weak gauge bosons. We detail relevant technical aspects of our implementation and present numerical results for observables relevant for high-precision Drell-Yan and Higgs boson production and decay simulations at the LHC.
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页数：27
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