Analytical formula for the cross section of hadron production from $e^{+}e^{-}$ collisions around the narrow charmouinum resonances
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866913520512139264 |
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| author | Wang, Yanan Wang, Yadi Wang, Ping |
| author_facet | Wang, Yanan Wang, Yadi Wang, Ping |
| contents | The paper reports an analytical formula for the production cross section of $e^{+}e^{-}$ annihilation to hadrons in the vicinity of a narrow resonance, particularly in the $τ$-charm region, while considering initial state radiation. Despite some approximations in its derivation, the comparison between the analytical formula and direct integration of ISR shows good accuracy, indicating that the analytical formula meets current experimental requirements. Furthermore, the paper presents a comparison of the cross section between the analytical formula and calculations using the {\sc ConExc} Monte Carlo generator. The efficiency of the analytical formula in significantly reducing computing time makes it a favorable choice for the regression procedure to extract the parameters of narrow charmonium resonances in experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_13292 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Analytical formula for the cross section of hadron production from $e^{+}e^{-}$ collisions around the narrow charmouinum resonances Wang, Yanan Wang, Yadi Wang, Ping High Energy Physics - Phenomenology High Energy Physics - Experiment The paper reports an analytical formula for the production cross section of $e^{+}e^{-}$ annihilation to hadrons in the vicinity of a narrow resonance, particularly in the $τ$-charm region, while considering initial state radiation. Despite some approximations in its derivation, the comparison between the analytical formula and direct integration of ISR shows good accuracy, indicating that the analytical formula meets current experimental requirements. Furthermore, the paper presents a comparison of the cross section between the analytical formula and calculations using the {\sc ConExc} Monte Carlo generator. The efficiency of the analytical formula in significantly reducing computing time makes it a favorable choice for the regression procedure to extract the parameters of narrow charmonium resonances in experiments. |
| title | Analytical formula for the cross section of hadron production from $e^{+}e^{-}$ collisions around the narrow charmouinum resonances |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2311.13292 |