Bremsstrahlung in intermediate-energy nucleon reactions within an effective one-boson exchange model |
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| Institution: | 1. Bogoliubov Theoretical Laboratory, Joint Institute for Nuclear Research, 141980 Dubna, Russia;2. Far-Eastern State University, Sukhanova str. 8, Vladivostok 690900, Russia;3. Research Center Rossendorf Inc., Institute for Nuclear and Hadron Physics, PF 510119, 01314 Dresden, Germany;1. Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China;2. Shanghai Institute of Thoracic Oncology, Shanghai 200030, China;3. School of Biomedical Engineering, School of Ophthalmology & Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China;4. Oujiang Laboratory, Zhejiang Lab for Regenerative Medicine, Vision and Brain Health, Wenzhou, Zhejiang 325101, China;5. State Key Laboratory of Oncogenes and Related Genes, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China;6. Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Army Medical University (Third Military Medical University), Chongqing 400038, China;7. Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China;8. State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China;9. Division of Medical Oncology, Department of Onco-Hematology, IRCCS-CROB, Referral Cancer Center of Basilicata, Rionero in Vulture (PZ) 85028, Italy;10. Department of Thoracic Surgery, Kaiser Permanente Oakland Medical Center, Kaiser Permanente Northern California, Oakland, CA 94611, USA;11. Chao Comprehensive Cancer Center, University of California Irvine, Orange, CA 92868, USA;12. Department of Surgery, Division of Surgical Oncology, Mayo Clinic, Jacksonville, FL 32224, USA;13. Department of Internal Medicine, Brooke Army Medical Center, Fort Sam Houston, TX 78234, USA;14. Section of Thoracic Surgery, University of Manitoba, Winnipeg, MB R3T 2N2, Canada;15. Pneumology Unit, Department of Medical Sciences, Fondazione IRCCS Casa Sollievo Della Sofferenza, San Giovanni Rotondo 71013, Italy;16. CAS Key Laboratory of Tissue Microenvironment and Tumor, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China;1. Tobacco Medicine and Tobacco Cessation Center, China-Japan Friendship Hospital, Beijing, China;2. Data and Project Management Unit, China-Japan Friendship Hospital, Beijing, China;3. Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China;4. Center of Respiratory Medicine, and Data and Project Management Unit, Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China;5. WHO Collaborating Center for Tobacco Cessation and Respiratory Diseases Prevention, Beijing, China;6. National Clinical Research Center for Respiratory Diseases, Beijing, China;7. Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Beijing, China;8. Institute of Basic Medical Sciences, School of Basic Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China;9. Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK;10. Beijing Key Laboratory of Respiratory and Pulmonary Circulation Disorders, Department of Pulmonary and Critical Care Medicine, Capital Medical University, Beijing, China;11. Department of Stomatology, Capital Medical University, Beijing, China;12. Department of Epidemiology, Capital Medical University, Beijing, China;13. Beijing Chao-Yang Hospital, Department of Respiratory Medicine, Capital Medical University, Beijing, China;14. Clinical Epidemiology and Evidence-based Medicine, Capital Medical University, Beijing, China;15. Beijing Children''s Hospital, National Center for Children''s Health, Beijing, China;p. Beijing Institute of Respiratory Medicine, Beijing, China;q. Department of Pulmonary and Critical Care Medicine, Shanxi Bethune Hospital Shanxi Academy of Medical Sciences, Taiyuan, China;r. Department of Pulmonary and Critical Care Medicine, First Affiliated Hospital of Xi''an Jiaotong University, Xi''an, China;s. Department of Pulmonary and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China;t. Department of Pulmonary and Critical Care Medicine, Guizhou Provincial People''s Hospital, Guiyang, China;u. Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University, Shanghai, China;v. Department of Pulmonary and Critical Care Medicine, First Hospital of China Medical University, Shenyang, China;w. State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Diseases, Guangzhou Institute of Respiratory Diseases, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China;x. Department of Pulmonary and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China;y. State Key Laboratory of Biotherapy of China and Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, China;z. Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing, China;11. Department of Respiratory and Critical Care Medicine, Beijing Hospital, Beijing, China;12. National Center of Gerontology, Beijing, China;13. National Heart and Lung Institute, Imperial College London and Royal Brompton and Harefield NHS Trust, London, UK;14. Department of Epidemiology, Tulane University School of Public Health and Tropical Medicine, New Orleans, LA, USA;1. Faculty of Medicine and Health Sciences, Department of Public Health and Nursing, Norwegian University of Science and Technology (NTNU), Norway;2. NTNU Center for Health Promotion Research, Norway;3. CEDOC, NOVA Medical School, University Nova de Lisbon, Lisbon, Portugal;4. Portuguese Society of Rheumatology, Portugal |
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| Abstract: | Within a covariant effective one-boson exchange model for the T matrix of NN interactions we present detailed calculations of bremsstrahlung cross sections for proton-proton and proton-neutron reactions at beam energies in the 1 GeV region. Besides pure bremsstrahlung processes we consider photons from Λ decays and contributions from the η → γγ process. At beam energies above 700 MeV the Λ decay channel dominates the spectra at large photon energies, where the interference between non-resonance processes and the Λ decay channel becomes also important. Low energy photons stem from pure bremsstrahlung processes. The available experimental data at 730 MeV beam energy is well described. We extrapolate the model down to 280 MeV, where more detailed experimental data exist, and find agreement with angular distributions. |
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