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Xi-nucleus potential for Xi(-) quasifree production in the Be-9(K-, K+) reaction
| Title: | Xi-nucleus potential for Xi(-) quasifree production in the Be-9(K-, K+) reaction |
| Authors: | Harada, Toru Browse this author →KAKEN DB | | Hirabayashi, Yoshiharu Browse this author →KAKEN DB |
| Issue Date: | 3-Feb-2021 |
| Publisher: | American Physical Society (APS) |
| Journal Title: | Physical Review C |
| Volume: | 103 |
| Issue: | 2 |
| Start Page: | 024605 |
| Publisher DOI: | 10.1103/PhysRevC.103.024605 |
| Abstract: | We study phenomenologically a Xi(-) production spectrum of the Be-9(K-, K+) reaction at 1.8 GeV/c within the distorted-wave impulse approximation using the optimal Fermi-averaged K- p -> K+ Xi(-) amplitude. We attempt to clarify properties of a Xi -nucleus potential for Xi(-)-Li-8, comparing the calculated spectrum with the data of the BNL-E906 experiment. The results show a weak attraction in the Xi-nucleus potential for Xi(-)-Li-8, which can sufficiently explain the data in the Xi(-) quasifree region. The strength of V-0(Xi) = 17 +/- 6 MeV is favored within the Woods-Saxon potential, accompanied by the reasonable absorption of W-0(Xi) = 5 MeV for Xi(-) p -> Xi(0)n and Xi(-) p -> Lambda Lambda transitions in nuclear medium. It is difficult to determine the value of W-0(Xi) from the data due to the insufficient resolution of 14.7 MeV FWHM. The energy dependence of the Fermi-averaged K- -> p -> K+ amplitude is is also confirmed by this analysis, and its importance in the nuclear (K-, K+) reaction is emphasized. |
| Rights: | ©2021 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/80703 |
| Appears in Collections: | 情報基盤センター (Information Initiative Center) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 平林 義治
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