A semi-classical model for breakup reactions of light nuclei: ^4He(p, pn)^3He
| ISSN: |
0375-9474
|
|---|---|
| Source: |
Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
|
| Topics: |
Physics
|
| Type of Medium: |
Electronic Resource
|
| URL: |
| _version_ | 1798291941809455105 |
|---|---|
| autor | Bildsten, L. Wasserman, I. Salpeter, E.E. |
| autorsonst | Bildsten, L. Wasserman, I. Salpeter, E.E. |
| book_url | http://linkinghub.elsevier.com/retrieve/pii/0375-9474(90)90050-V |
| datenlieferant | nat_lic_papers |
| fussnote | We introduce a new model for single-nucleon knockout reactions on light nuclei that includes multiple-scattering effects. We focus on ^4He since the energy and angular distributions of the neutrons and ^3He from the inelastic reaction ^4He(p, pn)^3He are of astrophysical interest in the problems of accreting neutron stars, solar flares, hot (kT ~ MeV) plasmas, and cosmic-ray interactions with the interstellar medium. We have performed a semi-classical, Monte Carlo calculation for proton energies ranging from just above the reaction threshold (25.72 MeV) to just below the free nucleon-nucleon π production threshold (280 MeV). Our model involves only two free parameters, one that suppresses the nucleon-nucleon scattering cross sections, and another that weights the occurrence of multiple scattering. These two free parameters are fixed by comparison to a subset of the experimental data. Once fixed, the model provides total cross sections and detailed energy-angle distributions that are in excellent agreement with the available experimental data. We show that excluding multiple scattering between the outgoing nucleons and the residual nucleus leads to strong disagreement with the experimental data. We describe how to implement these results in the context of a larger problem. |
| hauptsatz | hsatz_simple |
| identnr | NLZ181225948 |
| issn | 0375-9474 |
| journal_name | Nuclear Physics, Section A |
| materialart | 1 |
| package_name | Elsevier |
| publikationsort | Amsterdam |
| publisher | Elsevier |
| reference | 516 (1990), S. 77-107 |
| search_space | articles |
| shingle_author_1 | Bildsten, L. Wasserman, I. Salpeter, E.E. |
| shingle_author_2 | Bildsten, L. Wasserman, I. Salpeter, E.E. |
| shingle_author_3 | Bildsten, L. Wasserman, I. Salpeter, E.E. |
| shingle_author_4 | Bildsten, L. Wasserman, I. Salpeter, E.E. |
| shingle_catch_all_1 | Bildsten, L. Wasserman, I. Salpeter, E.E. A semi-classical model for breakup reactions of light nuclei: ^4He(p, pn)^3He 0375-9474 03759474 Elsevier |
| shingle_catch_all_2 | Bildsten, L. Wasserman, I. Salpeter, E.E. A semi-classical model for breakup reactions of light nuclei: ^4He(p, pn)^3He 0375-9474 03759474 Elsevier |
| shingle_catch_all_3 | Bildsten, L. Wasserman, I. Salpeter, E.E. A semi-classical model for breakup reactions of light nuclei: ^4He(p, pn)^3He 0375-9474 03759474 Elsevier |
| shingle_catch_all_4 | Bildsten, L. Wasserman, I. Salpeter, E.E. A semi-classical model for breakup reactions of light nuclei: ^4He(p, pn)^3He 0375-9474 03759474 Elsevier |
| shingle_title_1 | A semi-classical model for breakup reactions of light nuclei: ^4He(p, pn)^3He |
| shingle_title_2 | A semi-classical model for breakup reactions of light nuclei: ^4He(p, pn)^3He |
| shingle_title_3 | A semi-classical model for breakup reactions of light nuclei: ^4He(p, pn)^3He |
| shingle_title_4 | A semi-classical model for breakup reactions of light nuclei: ^4He(p, pn)^3He |
| sigel_instance_filter | dkfz geomar wilbert ipn albert fhp |
| source_archive | Elsevier Journal Backfiles on ScienceDirect 1907 - 2002 |
| timestamp | 2024-05-06T08:40:38.189Z |
| titel | A semi-classical model for breakup reactions of light nuclei: ^4He(p, pn)^3He |
| titel_suche | A semi-classical model for breakup reactions of light nuclei: ^4He(p, pn)^3He We introduce a new model for single-nucleon knockout reactions on light nuclei that includes multiple-scattering effects. We focus on ^4He since the energy and angular distributions of the neutrons and ^3He from the inelastic reaction ^4He(p, pn)^3He are of astrophysical interest in the problems of accreting neutron stars, solar flares, hot (kT ~ MeV) plasmas, and cosmic-ray interactions with the interstellar medium. We have performed a semi-classical, Monte Carlo calculation for proton energies ranging from just above the reaction threshold (25.72 MeV) to just below the free nucleon-nucleon π production threshold (280 MeV). Our model involves only two free parameters, one that suppresses the nucleon-nucleon scattering cross sections, and another that weights the occurrence of multiple scattering. These two free parameters are fixed by comparison to a subset of the experimental data. Once fixed, the model provides total cross sections and detailed energy-angle distributions that are in excellent agreement with the available experimental data. We show that excluding multiple scattering between the outgoing nucleons and the residual nucleus leads to strong disagreement with the experimental data. We describe how to implement these results in the context of a larger problem. |
| topic | U |
| uid | nat_lic_papers_NLZ181225948 |