首页 | 本学科首页   官方微博 | 高级检索  
     


Electromagnetic processes in relativistic heavy ion collisions
Affiliation:1. Department of Chemistry, Shahreza Branch, Islamic Azad University, P. O. Box, 311-86145, Shahreza, Isfahan, Islamic Republic of Iran;2. Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, Islamic Republic of Iran;1. Institute for Theoretical Biology (ITB), Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin 10117, Germany;2. Institute for Systems Medicine and Faculty of Human Medicine, MSH Medical School Hamburg, Hamburg 20457, Germany;3. Department of Neurosurgery and Spinal Surgery, HELIOS Medical Center Schwerin, University Campus of MSH Medical School Hamburg, Hamburg 20457, Germany;4. Medical Department of Hematology, Oncology, and Tumour Immunology, Molecular Cancer Research Center (MKFZ), Charité—Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin 10117, Germany;1. Department of Microbiology, Panjab University, Chandigarh, India;2. Department of Microbiology, University of Delhi South Campus, New Delhi, India
Abstract:Electromagnetic effects in relativistic heavy ion collisions with impact parameter larger than the sum of the nuclear radii are studied using the virtual photon method. With increasing value of the relativistic parameter γ the hardness of the virtual photon spectrum increases. This leads to interesting new effects which will also have to be considered in the design of future relativistic heavy ion machines and experiments. The excitation of high-lying giant E1 and E2 multipole resonances is calculated as well as electromagnetic pion production. Coulomb bremsstrahlung is calculated and compared to the bremsstrahlung emitted in the more violent central nuclear collisions. K-shell ionization and electron-positron pair production is studied. The latter process has a very large cross section for heavy ions and contributes significantly to the stopping power of relativistic heavy ions in a dense medium.
Keywords:
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号