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タイトル: | Lambda-Lambda Correlation in Relativistic Heavy Ion Collisions |
著者: | Morita, Kenji Furumoto, Takenori Ohnishi, Akira https://orcid.org/0000-0003-1513-0468 (unconfirmed) |
著者名の別形: | 森田, 健司 大西, 明 |
発行日: | Jun-2015 |
出版者: | EDP Sciences |
誌名: | EPJ Web of Conferences |
巻: | 97 |
論文番号: | 00020 |
抄録: | We investigate Λ − Λ correlation function in relativistic heavy ion collisions to extract their interaction. Using an expanding source model for heavy ion collisions, we disentangle effects of collective expansion and those of the interaction at low relative momenta. Then, we discuss the influence of the feed-down correction for Σ⁰ decay and indicate the possible existence of a residual correlation at high relative momenta. Consequently, the present STAR data suggest a weakly attractive interaction for the ΛΛ pairs which is represented by the scattering length, 1/a₀ < −0.8 fm⁻¹. |
記述: | Resonance Workshop at Catania, Catania, Italy, November 3-7, 2014 |
著作権等: | © Owned by the authors, published by EDP Sciences, 2015. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
URI: | http://hdl.handle.net/2433/233190 |
DOI(出版社版): | 10.1051/epjconf/20159700020 |
出現コレクション: | 学術雑誌掲載論文等 |
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