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Extended optimal Fermi averaging for near-recoilless production in the (K−, π−) reaction on nuclei
| Title: | Extended optimal Fermi averaging for near-recoilless production in the (K−, π−) reaction on nuclei |
| Authors: | Harada, Toru Browse this author →KAKEN DB | | Hirabayashi, Yoshiharu Browse this author →KAKEN DB |
| Issue Date: | 2022 |
| Publisher: | American Physical Society (APS) |
| Journal Title: | Physical Review C |
| Volume: | 105 |
| Issue: | 6 |
| Start Page: | 64606 |
| Publisher DOI: | 10.1103/PhysRevC.105.064606 |
| Abstract: | We propose to extend the optimal Fermi averaging procedure theoretically in order to calculate an in-medium K-n→π-Λ amplitude for the exothermic (K−, π−) reaction on nuclei in the framework of a distorted-wave impulse approximation, taking into account the local momentum transfer generated by semiclassical distorted waves for K− and π− mesons. Angular distributions for the 12C(K-, π−)λ12 C reaction in which a momentum transfer is q < 80 MeV/c at pK = 800 MeV/c in the π− forward direction are estimated by applying the extended procedure. The result shows that the calculated angular distributions are in good agreement with those of the data, and this extension is a successful prescription making it possible to describe the reaction cross sections in near-recoilless reactions such as (K-, π−) in our framework. |
| Rights: | ©2022 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/86573 |
| 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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