Event Generators for Multi Hadronic Production in e+e− Collisions
| Autor: | Rong-Gang Ping, Zhen Gao |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
010308 nuclear & particles physics QC1-999 Hadron Radiation 01 natural sciences R-value (insulation) Nuclear physics 0103 physical sciences Range (statistics) Radiative transfer High Energy Physics::Experiment 010306 general physics Nuclear Experiment Event (particle physics) Energy (signal processing) Event generator |
| Zdroj: | EPJ Web of Conferences, Vol 218, p 07005 (2019) |
| Popis: | An event generator for multi hadron production is presented for measuring the R value in the τ-charm energy region with e+e− collisions. The initial state radiation effects are considered up to second order accuracy, and the radiative correction factor is calculated with hadronic Born cross sections. The established exclusive processes are generated according to their measured cross sections, while the missing processes are generated using the LUND Area Law model, and its parameters are tuned with data collected at $ \sqrt s $ = 3.08 GeV. The optimized values are validated with data in the range $ \sqrt s $= 2.2324 ∼ 3.671 GeV. These optimized parameters are universally valid for event generation below the DD¯threshold. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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