{"title":"介子束产生的超子极化","authors":"V. V. Abramov","doi":"10.1134/S1063778824020029","DOIUrl":null,"url":null,"abstract":"<p>The work is devoted to the transverse polarization (<span>\\(P_{N}\\)</span>) of <span>\\(\\Lambda\\)</span>-hyperons and corresponding antihyperons produced in meson–proton and meson–nuclear interactions in inclusive reactions. The currently available experimental data are compared with calculations based on the chromomagnetic polarization of quark (CPQ) model. The main features of the CPQ model are the prediction of hyperon polarization oscillations depending on the Feynman variable <span>\\(x_{F}\\)</span> in the case of a sufficiently strong chomomagnetic field and resonant dependence of the polarization on the c.m. energy (<span>\\(\\sqrt{s}\\)</span>) for some reactions. Calculations based on the CPQ model were performed for still unexplored kinematic regions and various targets and can be tested in the SPASCHARM experiment at the NRC ‘‘Kurchatov Institute’’—IHEP.</p>","PeriodicalId":728,"journal":{"name":"Physics of Atomic Nuclei","volume":"87 1","pages":"38 - 43"},"PeriodicalIF":0.3000,"publicationDate":"2024-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Polarization of Hyperons Produced by Meson Beams\",\"authors\":\"V. V. Abramov\",\"doi\":\"10.1134/S1063778824020029\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The work is devoted to the transverse polarization (<span>\\\\(P_{N}\\\\)</span>) of <span>\\\\(\\\\Lambda\\\\)</span>-hyperons and corresponding antihyperons produced in meson–proton and meson–nuclear interactions in inclusive reactions. The currently available experimental data are compared with calculations based on the chromomagnetic polarization of quark (CPQ) model. The main features of the CPQ model are the prediction of hyperon polarization oscillations depending on the Feynman variable <span>\\\\(x_{F}\\\\)</span> in the case of a sufficiently strong chomomagnetic field and resonant dependence of the polarization on the c.m. energy (<span>\\\\(\\\\sqrt{s}\\\\)</span>) for some reactions. Calculations based on the CPQ model were performed for still unexplored kinematic regions and various targets and can be tested in the SPASCHARM experiment at the NRC ‘‘Kurchatov Institute’’—IHEP.</p>\",\"PeriodicalId\":728,\"journal\":{\"name\":\"Physics of Atomic Nuclei\",\"volume\":\"87 1\",\"pages\":\"38 - 43\"},\"PeriodicalIF\":0.3000,\"publicationDate\":\"2024-04-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics of Atomic Nuclei\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1063778824020029\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PHYSICS, NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Atomic Nuclei","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1063778824020029","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, NUCLEAR","Score":null,"Total":0}
The work is devoted to the transverse polarization (\(P_{N}\)) of \(\Lambda\)-hyperons and corresponding antihyperons produced in meson–proton and meson–nuclear interactions in inclusive reactions. The currently available experimental data are compared with calculations based on the chromomagnetic polarization of quark (CPQ) model. The main features of the CPQ model are the prediction of hyperon polarization oscillations depending on the Feynman variable \(x_{F}\) in the case of a sufficiently strong chomomagnetic field and resonant dependence of the polarization on the c.m. energy (\(\sqrt{s}\)) for some reactions. Calculations based on the CPQ model were performed for still unexplored kinematic regions and various targets and can be tested in the SPASCHARM experiment at the NRC ‘‘Kurchatov Institute’’—IHEP.
期刊介绍:
Physics of Atomic Nuclei is a journal that covers experimental and theoretical studies of nuclear physics: nuclear structure, spectra, and properties; radiation, fission, and nuclear reactions induced by photons, leptons, hadrons, and nuclei; fundamental interactions and symmetries; hadrons (with light, strange, charm, and bottom quarks); particle collisions at high and superhigh energies; gauge and unified quantum field theories, quark models, supersymmetry and supergravity, astrophysics and cosmology.