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Charmed baryon pair production in proton-antiproton collisions in effective Lagrangian and Regge approaches

有効ラグランジアンとレッジェアプローチによる陽子・反陽子衝突でのチャームバリオンペア生成

Sangkhakrit, T.*; Shim, S.-I.*; Yan, Y.*; 保坂 淳

Sangkhakrit, T.*; Shim, S.-I.*; Yan, Y.*; Hosaka, Atsushi

Strange and charmed baryon pair productions in proton-antiproton collisions are studied in the effective Lagrangian and Regge approaches. Unknown parameters of both models are determined from the comparison with the existing data for strangeness productions. Then, we predict charm production cross sections by extrapolating the amplitudes for strangeness productions to those for charm. As a result, the total cross sections are about 10$$^{-4}$$ to 10$$^{-5}$$ times smaller than those of strangeness productions, depending on the final states. By using the known total cross sections for strangeness, similar to 10$$^{2}$$ $$mu$$b for $$Lambda$$ $$overline{Lambda}$$ and, similar to 10$$^{1}$$ $$mu$$b for $$Sigma$$ $$overline{Lambda}$$, the total cross sections for charm productions are predicted to be similar to 10$$^{-2}$$ $$mu$$b for $$Lambda$$$$_{c}$$ $$overline{Lambda}$$$$_{c}$$, similar to 10$$^{-3}$$ $$mu$$b for $$Sigma$$$$_{c}$$ $$overline{Lambda}$$$$_{c}$$, and similar to 10$$^{-4}$$ $$mu$$b for $$Sigma$$$$_{c}$$ $$overline{Sigma}$$$$_{c}$$. Our results can be tested in the future experiments at $$overline{rm P}$$ANDA.

使用言語

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English

掲載資料名

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European Physical Journal A

巻

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58

号

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2

ページ数

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p.32_1 - 32_11

発行年月

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2022/02

発表会議名

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開催年月

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開催都市

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開催国

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キーワード

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no keyword

特許データ

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PDF

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論文URL

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https://doi.org/10.1140/epja/s10050-022-00678-x

研究データの公開先DOI

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使用施設

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広報プレスリリース

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論文解説記事
(成果普及情報誌)

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受委託・共同研究相手機関

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Access

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- Accesses

InCites™

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パーセンタイル：49.92

分野：Physics, Nuclear

Altmetrics

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