Neutron Standard Cross Sections for 1H and 6Li from R-Matrix Analyses and Microscopic Calculations for the N-N and 7Li Systems
We present work on the N - N and 7Li systems that is relevant to the international effort to re-evaluate the neutron standard cross sections. The R-matrix analysis of the N - N system also determined the n-p capture cross section for use in BBN modeling of light-element abundances in the early unive...
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| Veröffentlicht in: | AIP conference proceedings 2005-05, Vol.769 (1), p.75-78 |
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| creator | Hale, Gerald M Hofmann, Hartmut M |
| description | We present work on the N - N and 7Li systems that is relevant to the international effort to re-evaluate the neutron standard cross sections. The R-matrix analysis of the N - N system also determined the n-p capture cross section for use in BBN modeling of light-element abundances in the early universe with an uncertainty of less than 2.5 %. The R-matrix results for the 6Li(n,t)4He cross section agree qualitatively with a microscopic RRGM calculation that uses semi-realistic N-N potentials. However, they disagree with some cross-section measurements for the reaction, and with another evaluation. |
| doi_str_mv | 10.1063/1.1944960 |
| format | Article |
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However, they disagree with some cross-section measurements for the reaction, and with another evaluation.</description><subject>ALGEBRA</subject><subject>CAPTURE</subject><subject>COMPUTERIZED SIMULATION</subject><subject>CROSS SECTIONS</subject><subject>ELEMENT ABUNDANCE</subject><subject>EVALUATION</subject><subject>HELIUM 4</subject><subject>HYDROGEN 1</subject><subject>LITHIUM 6</subject><subject>LITHIUM 7</subject><subject>NEUTRON REACTIONS</subject><subject>NEUTRONS</subject><subject>NUCLEAR PHYSICS AND RADIATION PHYSICS</subject><subject>NUCLEON-NUCLEON POTENTIAL</subject><subject>R MATRIX</subject><issn>0094-243X</issn><issn>1551-7616</issn><isbn>9780735402546</isbn><isbn>073540254X</isbn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNpFj09LwzAchoN_wDl38BsEBG-dSZr8shylqBO2CU7BW0mTlEW6ZjYpuIuf3bIJnt7D-7wPvAhdUzKlBPI7OqWKcwXkBI2oEDSTQOEUTZScEZkLTpjgcIZGhCieMZ5_XKDLGD8JYUrK2Qj9rFyfutDiddKt1Z3FRRdixGtnkg9txHXoMJ3jocSw8Ljuwha_ZkudOv-N71vd7KOLh3rpzTA1YecNLnRj-kb_K9LG4VW2OoBy8Kz3MbltvELntW6im_zlGL0_PrwV82zx8vRc3C8yQ3NOMqBWg5Aq11aC46Iidc1VpQw34JyyRDPNmKk41xa4NdbqGVSEGkeFIeDyMbo5ekNMvozGJ2c2JrTtcLNkRDIGkg3U7ZHadeGrdzGVWx-NaxrdutDHkikOXAnIfwExzm-S</recordid><startdate>20050524</startdate><enddate>20050524</enddate><creator>Hale, Gerald M</creator><creator>Hofmann, Hartmut M</creator><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20050524</creationdate><title>Neutron Standard Cross Sections for 1H and 6Li from R-Matrix Analyses and Microscopic Calculations for the N-N and 7Li Systems</title><author>Hale, Gerald M ; Hofmann, Hartmut M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1340-61da65793ad76e45b0ff49b9c4c6ee9d0a2a22cb44ad64dcdda86b01ce15c06e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>ALGEBRA</topic><topic>CAPTURE</topic><topic>COMPUTERIZED SIMULATION</topic><topic>CROSS SECTIONS</topic><topic>ELEMENT ABUNDANCE</topic><topic>EVALUATION</topic><topic>HELIUM 4</topic><topic>HYDROGEN 1</topic><topic>LITHIUM 6</topic><topic>LITHIUM 7</topic><topic>NEUTRON REACTIONS</topic><topic>NEUTRONS</topic><topic>NUCLEAR PHYSICS AND RADIATION PHYSICS</topic><topic>NUCLEON-NUCLEON POTENTIAL</topic><topic>R MATRIX</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hale, Gerald M</creatorcontrib><creatorcontrib>Hofmann, Hartmut M</creatorcontrib><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>AIP conference proceedings</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hale, Gerald M</au><au>Hofmann, Hartmut M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Neutron Standard Cross Sections for 1H and 6Li from R-Matrix Analyses and Microscopic Calculations for the N-N and 7Li Systems</atitle><jtitle>AIP conference proceedings</jtitle><date>2005-05-24</date><risdate>2005</risdate><volume>769</volume><issue>1</issue><spage>75</spage><epage>78</epage><pages>75-78</pages><issn>0094-243X</issn><eissn>1551-7616</eissn><isbn>9780735402546</isbn><isbn>073540254X</isbn><abstract>We present work on the N - N and 7Li systems that is relevant to the international effort to re-evaluate the neutron standard cross sections. The R-matrix analysis of the N - N system also determined the n-p capture cross section for use in BBN modeling of light-element abundances in the early universe with an uncertainty of less than 2.5 %. The R-matrix results for the 6Li(n,t)4He cross section agree qualitatively with a microscopic RRGM calculation that uses semi-realistic N-N potentials. However, they disagree with some cross-section measurements for the reaction, and with another evaluation.</abstract><cop>United States</cop><doi>10.1063/1.1944960</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0094-243X |
| ispartof | AIP conference proceedings, 2005-05, Vol.769 (1), p.75-78 |
| issn | 0094-243X 1551-7616 |
| language | eng |
| recordid | cdi_osti_scitechconnect_20722672 |
| source | AIP Journals Complete |
| subjects | ALGEBRA CAPTURE COMPUTERIZED SIMULATION CROSS SECTIONS ELEMENT ABUNDANCE EVALUATION HELIUM 4 HYDROGEN 1 LITHIUM 6 LITHIUM 7 NEUTRON REACTIONS NEUTRONS NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEON-NUCLEON POTENTIAL R MATRIX |
| title | Neutron Standard Cross Sections for 1H and 6Li from R-Matrix Analyses and Microscopic Calculations for the N-N and 7Li Systems |
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