The electromagnetic form factors and spin polarization of $Λ_c^+$ in the process $e^+ e^- \to Λ^+_c \barΛ^-_c$
Fuente:
arXiv
Salvato in:
| Autori principali: | , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866909437333078016 |
|---|---|
| author | Chen, Cheng Yan, Bing Xie, Ju-Jun |
| author_facet | Chen, Cheng Yan, Bing Xie, Ju-Jun |
| contents | The total cross sections of the process $e^+ e^-\to Λ_c^+ \barΛ_c^-$ close to the threshold are calculated within the vector meson dominance model. It is found that the theoretical results can describe the current experimental measurements. In particular, the results for the angular distribution parameters about the differential cross section are consistent with the experiments from BESIII Collaboration. In addition, the relative phase $ΔΦ$ of the electromagnetic form factors was given, and the spin polarization of $Λ_c^+$ is predicted at center-mass energy $4.7 \ \rm GeV$. It is hopeful to provide a new perspective on the characteristics of the charmed baryon $Λ_c^+$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_19445 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The electromagnetic form factors and spin polarization of $Λ_c^+$ in the process $e^+ e^- \to Λ^+_c \barΛ^-_c$ Chen, Cheng Yan, Bing Xie, Ju-Jun High Energy Physics - Phenomenology The total cross sections of the process $e^+ e^-\to Λ_c^+ \barΛ_c^-$ close to the threshold are calculated within the vector meson dominance model. It is found that the theoretical results can describe the current experimental measurements. In particular, the results for the angular distribution parameters about the differential cross section are consistent with the experiments from BESIII Collaboration. In addition, the relative phase $ΔΦ$ of the electromagnetic form factors was given, and the spin polarization of $Λ_c^+$ is predicted at center-mass energy $4.7 \ \rm GeV$. It is hopeful to provide a new perspective on the characteristics of the charmed baryon $Λ_c^+$. |
| title | The electromagnetic form factors and spin polarization of $Λ_c^+$ in the process $e^+ e^- \to Λ^+_c \barΛ^-_c$ |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2407.19445 |