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Next-to-leading order QCD corrections to $Z\to η_Q+Q+\bar{Q}$
- Publication Year :
- 2022
- Publisher :
- arXiv, 2022.
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Abstract
- It has been found that at a high luminosity $e^+ e^-$ collider, sizable $η_c+c\bar{c}X$ and $η_b+b\bar{b}X$ events can be produced when it works around the $Z$ peak. In this paper, we calculate the decay widths of $Z \to η_c+c+\bar{c}+X$ and $Z \to η_b+b+\bar{b}+X$ up to next-to-leading order (NLO) accuracy. We find that the NLO corrections are significant in these two processes. After including the NLO corrections, the decay widths of $Z \to η_c+c+\bar{c}+X$ and $Z \to η_b+b+\bar{b}+X$ are enhanced by about $37\%$ and $28\%$ for the case of $μ_R=2m_c$ and $μ_R=2m_b$, respectively. The differential decay widths $dΓ/ds_1$ and $dΓ/dz$ for these two decay processes are also analyzed.<br />10 pages, 11 figures
- Subjects :
- High Energy Physics - Phenomenology (hep-ph)
FOS: Physical sciences
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi...........0d3686f0f5cc00dd7eae714043706278
- Full Text :
- https://doi.org/10.48550/arxiv.2205.03768