A V Maiorova, D Karlovets, S Fritzsche, A Surzhykov, Th Stöhlker
{"title":"涡旋离子束对氢原子的库仑激发","authors":"A V Maiorova, D Karlovets, S Fritzsche, A Surzhykov, Th Stöhlker","doi":"10.1088/1367-2630/ad73fd","DOIUrl":null,"url":null,"abstract":"Coulomb excitation of hydrogen atoms by vortex protons is theoretically investigated within the framework of the non-relativistic first–Born approximation and the density matrix approach. Special attention is paid to the magnetic sublevel population of excited atoms and, consequently, to the angular distribution of the fluorescence radiation. We argue that both these properties are sensitive to the projection of the orbital angular momentum (OAM), carried by the projectile ions. In order to illustrate the OAM–effect, detailed calculations have been performed for the <inline-formula>\n<tex-math><?CDATA $1s \\to 2p$?></tex-math><mml:math overflow=\"scroll\"><mml:mrow><mml:mn>1</mml:mn><mml:mi>s</mml:mi><mml:mo accent=\"false\" stretchy=\"false\">→</mml:mo><mml:mn>2</mml:mn><mml:mi>p</mml:mi></mml:mrow></mml:math><inline-graphic xlink:href=\"njpad73fdieqn1.gif\"></inline-graphic></inline-formula> excitation and the subsequent <inline-formula>\n<tex-math><?CDATA $2p \\to 1s$?></tex-math><mml:math overflow=\"scroll\"><mml:mrow><mml:mn>2</mml:mn><mml:mi>p</mml:mi><mml:mo accent=\"false\" stretchy=\"false\">→</mml:mo><mml:mn>1</mml:mn><mml:mi>s</mml:mi></mml:mrow></mml:math><inline-graphic xlink:href=\"njpad73fdieqn2.gif\"></inline-graphic></inline-formula> radiative decay of a hydrogen target, interacting with incident Laguerre–Gaussian vortex protons. The calculation results suggest that Coulomb excitation can be employed for the diagnostics of vortex ion beam at accelerator and storage ring facilities.","PeriodicalId":19181,"journal":{"name":"New Journal of Physics","volume":"26 1","pages":""},"PeriodicalIF":2.8000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Coulomb excitation of hydrogen atoms by vortex ion beams\",\"authors\":\"A V Maiorova, D Karlovets, S Fritzsche, A Surzhykov, Th Stöhlker\",\"doi\":\"10.1088/1367-2630/ad73fd\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Coulomb excitation of hydrogen atoms by vortex protons is theoretically investigated within the framework of the non-relativistic first–Born approximation and the density matrix approach. Special attention is paid to the magnetic sublevel population of excited atoms and, consequently, to the angular distribution of the fluorescence radiation. We argue that both these properties are sensitive to the projection of the orbital angular momentum (OAM), carried by the projectile ions. In order to illustrate the OAM–effect, detailed calculations have been performed for the <inline-formula>\\n<tex-math><?CDATA $1s \\\\to 2p$?></tex-math><mml:math overflow=\\\"scroll\\\"><mml:mrow><mml:mn>1</mml:mn><mml:mi>s</mml:mi><mml:mo accent=\\\"false\\\" stretchy=\\\"false\\\">→</mml:mo><mml:mn>2</mml:mn><mml:mi>p</mml:mi></mml:mrow></mml:math><inline-graphic xlink:href=\\\"njpad73fdieqn1.gif\\\"></inline-graphic></inline-formula> excitation and the subsequent <inline-formula>\\n<tex-math><?CDATA $2p \\\\to 1s$?></tex-math><mml:math overflow=\\\"scroll\\\"><mml:mrow><mml:mn>2</mml:mn><mml:mi>p</mml:mi><mml:mo accent=\\\"false\\\" stretchy=\\\"false\\\">→</mml:mo><mml:mn>1</mml:mn><mml:mi>s</mml:mi></mml:mrow></mml:math><inline-graphic xlink:href=\\\"njpad73fdieqn2.gif\\\"></inline-graphic></inline-formula> radiative decay of a hydrogen target, interacting with incident Laguerre–Gaussian vortex protons. The calculation results suggest that Coulomb excitation can be employed for the diagnostics of vortex ion beam at accelerator and storage ring facilities.\",\"PeriodicalId\":19181,\"journal\":{\"name\":\"New Journal of Physics\",\"volume\":\"26 1\",\"pages\":\"\"},\"PeriodicalIF\":2.8000,\"publicationDate\":\"2024-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"New Journal of Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1088/1367-2630/ad73fd\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"New Journal of Physics","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1088/1367-2630/ad73fd","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
Coulomb excitation of hydrogen atoms by vortex ion beams
Coulomb excitation of hydrogen atoms by vortex protons is theoretically investigated within the framework of the non-relativistic first–Born approximation and the density matrix approach. Special attention is paid to the magnetic sublevel population of excited atoms and, consequently, to the angular distribution of the fluorescence radiation. We argue that both these properties are sensitive to the projection of the orbital angular momentum (OAM), carried by the projectile ions. In order to illustrate the OAM–effect, detailed calculations have been performed for the 1s→2p excitation and the subsequent 2p→1s radiative decay of a hydrogen target, interacting with incident Laguerre–Gaussian vortex protons. The calculation results suggest that Coulomb excitation can be employed for the diagnostics of vortex ion beam at accelerator and storage ring facilities.
期刊介绍:
New Journal of Physics publishes across the whole of physics, encompassing pure, applied, theoretical and experimental research, as well as interdisciplinary topics where physics forms the central theme. All content is permanently free to read and the journal is funded by an article publication charge.