{"id":"https://openalex.org/W61471085","doi":"https://doi.org/10.1103/physrevc.1.990","title":"Si28 Nucleus in the Projected Hartree-Fock Model","display_name":"Si28 Nucleus in the Projected Hartree-Fock Model","publication_year":1970,"publication_date":"1970-03-01","ids":{"openalex":"https://openalex.org/W61471085","doi":"https://doi.org/10.1103/physrevc.1.990","mag":"61471085"},"language":"lv","primary_location":{"id":"doi:10.1103/physrevc.1.990","doi":"https://doi.org/10.1103/physrevc.1.990","is_oa":false,"landing_page_url":"https://doi.org/10.1103/physrevc.1.990","pdf_url":null,"source":{"id":"https://openalex.org/S4210168441","display_name":"Physical Review C","issn_l":"0556-2813","issn":["0556-2813","1089-490X","1538-4497","2469-9985","2469-9993","2470-0002"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-2","ki-jl-1","norway-1","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320261","host_organization_name":"American Physical Society","host_organization_lineage":["https://openalex.org/P4310320261"],"host_organization_lineage_names":["American Physical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physical Review C","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5108529301","display_name":"B. Castel","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I204722609","display_name":"Queen's University","ror":"https://ror.org/02y72wh86","country_code":"CA","type":"education","lineage":["https://openalex.org/I204722609"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"B. Castel","raw_affiliation_strings":["Physics Department, Queen's University, Kingston, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Physics Department, Queen's University, Kingston, Canada","institution_ids":["https://openalex.org/I204722609"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103439777","display_name":"Jitendra C. Parikh","orcid":"https://orcid.org/0000-0002-2345-668X","observed_orcids":["https://orcid.org/0000-0002-2345-668X"]},"institutions":[{"id":"https://openalex.org/I204722609","display_name":"Queen's University","ror":"https://ror.org/02y72wh86","country_code":"CA","type":"education","lineage":["https://openalex.org/I204722609"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"J. C. Parikh","raw_affiliation_strings":["Physics Department, Queen's University, Kingston, Canada"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Physics Department, Queen's University, Kingston, Canada","institution_ids":["https://openalex.org/I204722609"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I204722609"],"apc_list":null,"apc_paid":null,"fwci":3.4891,"has_fulltext":false,"cited_by_count":18,"citation_normalized_percentile":{"value":0.91501033,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"1","issue":"3","first_page":"990","last_page":"994"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10093","display_name":"Nuclear physics research studies","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10093","display_name":"Nuclear physics research studies","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10224","display_name":"Quantum Chromodynamics and Particle Interactions","score":0.0,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13458","display_name":"Astronomical and nuclear sciences","score":0.0,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/angular-momentum-projection","display_name":"angular momentum projection","score":0.9200000166893005},{"id":"https://openalex.org/keywords/energy-level-spacing","display_name":"energy level spacing","score":0.5630000233650208},{"id":"https://openalex.org/keywords/e2-transition-probabilities","display_name":"E2 transition probabilities","score":0.9850000143051147},{"id":"https://openalex.org/keywords/nuclear-structure","display_name":"nuclear structure","score":0.5429999828338623}],"concepts":[{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.6469632983207703},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.5531781315803528},{"id":"https://openalex.org/C155675718","wikidata":"https://www.wikidata.org/wiki/Q161254","display_name":"Angular momentum","level":2,"score":0.5501950979232788},{"id":"https://openalex.org/C48103436","wikidata":"https://www.wikidata.org/wiki/Q599031","display_name":"State (computer science)","level":2,"score":0.49872660636901855},{"id":"https://openalex.org/C2780861071","wikidata":"https://www.wikidata.org/wiki/Q1062934","display_name":"Character (mathematics)","level":2,"score":0.4462941586971283},{"id":"https://openalex.org/C156778621","wikidata":"https://www.wikidata.org/wiki/Q1365748","display_name":"Spectrum (functional analysis)","level":2,"score":0.4453410804271698},{"id":"https://openalex.org/C184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","level":1,"score":0.39785706996917725},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3876330852508545},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.3497183918952942},{"id":"https://openalex.org/C37914503","wikidata":"https://www.wikidata.org/wiki/Q156495","display_name":"Mathematical physics","level":1,"score":0.3496192693710327},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.265584796667099},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.21189868450164795},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1982472538948059},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.17277497053146362}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1103/physrevc.1.990","doi":"https://doi.org/10.1103/physrevc.1.990","is_oa":false,"landing_page_url":"https://doi.org/10.1103/physrevc.1.990","pdf_url":null,"source":{"id":"https://openalex.org/S4210168441","display_name":"Physical Review C","issn_l":"0556-2813","issn":["0556-2813","1089-490X","1538-4497","2469-9985","2469-9993","2470-0002"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-a","jufo-2","ki-jl-1","norway-1","poland-140","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310320261","host_organization_name":"American Physical Society","host_organization_lineage":["https://openalex.org/P4310320261"],"host_organization_lineage_names":["American Physical Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Physical Review C","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320319923","display_name":"Ontario Council on Graduate Studies, Council of Ontario Universities","ror":"https://ror.org/014y22g21"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W1531036014","https://openalex.org/W1542475302","https://openalex.org/W1604985223","https://openalex.org/W1670510988","https://openalex.org/W1979680387","https://openalex.org/W1983572358","https://openalex.org/W1986730962","https://openalex.org/W1993109311","https://openalex.org/W2006696296","https://openalex.org/W2013763671","https://openalex.org/W2016740178","https://openalex.org/W2023136615","https://openalex.org/W2043051846","https://openalex.org/W2043410565","https://openalex.org/W2043877913","https://openalex.org/W2054035080","https://openalex.org/W2056226553","https://openalex.org/W2077703653","https://openalex.org/W2085173983","https://openalex.org/W2093568742","https://openalex.org/W4302967470"],"related_works":["https://openalex.org/W1967027641","https://openalex.org/W2085173983","https://openalex.org/W2006920139","https://openalex.org/W2020493993","https://openalex.org/W1997559591","https://openalex.org/W2264589416","https://openalex.org/W2054035080","https://openalex.org/W2051727912","https://openalex.org/W1986730962","https://openalex.org/W2043051846"],"abstract_inverted_index":{"The":[0,12,55,88],"structure":[1],"of":[2,14],"the":[3,59,68,85,94,103],"$^{28}\\mathrm{Si}$":[4,51],"nucleus":[5],"is":[6,22,28,34],"studied":[7],"using":[8],"a":[9,18,31,80],"variational":[10,43],"procedure.":[11],"method":[13,70],"angular-momentum":[15],"projection":[16],"from":[17,30],"deformed":[19],"intrinsic":[20],"state":[21,27],"applied,":[23],"and":[24,76],"each":[25],"${J}^{\\ensuremath{\\pi}}$":[26],"projected":[29],"determinant":[32],"which":[33,49],"variationally":[35],"\"best\"":[36],"for":[37,93],"that":[38],"state.":[39],"This":[40],"more":[41],"general":[42],"procedure":[44],"includes":[45],"important":[46],"vibrational":[47],"correlations,":[48],"in":[50,58,67,99],"have":[52],"hexadecapole":[53],"character.":[54],"level":[56],"spacings":[57],"energy":[60],"spectrum":[61],"improve":[62],"considerably":[63],"compared":[64],"to":[65,79],"those":[66],"Hartree-Fock":[69],"followed":[71],"by":[72],"angular":[73],"momentum":[74],"projection,":[75],"this":[77],"leads":[78],"much":[81],"better":[82],"agreement":[83,101],"with":[84,102],"experimental":[86],"spectrum.":[87],"$E2$":[89],"transition":[90],"probabilities,":[91],"except":[92],"${6}^{+}$\\ensuremath{\\rightarrow}${4}^{+}$":[95],"transition,":[96],"are":[97],"also":[98],"good":[100],"experiments.":[104]},"counts_by_year":[{"year":2016,"cited_by_count":1}],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2016-06-24T00:00:00"}
