Simulation of electron-positron annihilation into hadrons with the event generator PHOKHARA

被引：18

作者：

Czyz, H. ^{[1
]}

Gunia, M. ^{[1
]}

Kuehn, J. H. ^{[2
]}

机构：

[1] Silesian Univ, Inst Phys, Dept Field Theory & Particle Phys, Uniwersytecka 4, PL-40007 Katowice, Poland

[2] KIT, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2013年 / 08期

关键词：

Monte Carlo Simulations; Phenomenological Models; RADIATIVE-CORRECTIONS; MONTE-CARLO; E(+)E(-) ANNIHILATION; FINAL-STATES; TAU-DECAYS; RETURN; ETA; NLO;

D O I：

10.1007/JHEP08(2013)110

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：

The precise determination of the cross section for electron-positron annihilation into hadrons is one of the central tasks of ongoing experiments at low energy colliders. These measurements have to be complemented by Monte Carlo generators which simulate a large number of final states and include higher order radiative corrections. With this motivation in mind the generator PHOKHARA is extended to version 8.0, thus allowing for the simulation of final states with zero, one or two real photons. At the same time corrections from the emission of one or two virtual photons are included, such that a full next-to-next-to leading order generator is available. The stability and consistency of the program is tested. The results (for muon-pair final states) are compared to the programs KKMC and MCGPJ and implications for the analysis of various hadronic final states are investigated.

引用

页数：16

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