{"id":"https://openalex.org/A5067892580","orcid":"https://orcid.org/0009-0003-2912-2116","observed_orcids":["https://orcid.org/0009-0003-2912-2116"],"display_name":"G. H\u00e4fner","raw_author_names":["G H\u00e4fner","G. Haefner","G. Hafner","G. H\u00e4fner","Guillaume Ha\u0308fner","Guillaume H\u00e4fner","Haefner, G.","Ha\u0308fner, Guillaume","H\u00c4FNER, Guillaume","H\u00e4fner, G."],"full_name":"Ha\u0308fner, Guillaume","works_count":50,"cited_by_count":519,"summary_stats":{"2yr_mean_citedness":4.142857142857143,"h_index":12,"i10_index":16},"ids":{"openalex":"https://openalex.org/A5067892580","orcid":"https://orcid.org/0009-0003-2912-2116","observed_orcids":["https://orcid.org/0009-0003-2912-2116"]},"affiliations":[{"institution":{"id":"https://openalex.org/I1294671590","ror":"https://ror.org/02feahw73","display_name":"Centre National de la Recherche Scientifique","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},"years":[2026,2023,2022,2021,2020,2019]},{"institution":{"id":"https://openalex.org/I138689650","ror":"https://ror.org/00240q980","display_name":"University of Padua","country_code":"IT","type":"education","lineage":["https://openalex.org/I138689650"]},"years":[2022]},{"institution":{"id":"https://openalex.org/I169556180","ror":"https://ror.org/02k8cbn47","display_name":"GSI Helmholtz Centre for Heavy Ion Research","country_code":"DE","type":"facility","lineage":["https://openalex.org/I1305996414","https://openalex.org/I169556180"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I180923762","ror":"https://ror.org/00rcxh774","display_name":"University of Cologne","country_code":"DE","type":"education","lineage":["https://openalex.org/I180923762"]},"years":[2026,2024,2023,2022,2021,2020,2019,2018]},{"institution":{"id":"https://openalex.org/I189158943","ror":"https://ror.org/00wjc7c48","display_name":"University of Milan","country_code":"IT","type":"education","lineage":["https://openalex.org/I189158943"]},"years":[2023]},{"institution":{"id":"https://openalex.org/I277688954","ror":"https://ror.org/03xjwb503","display_name":"Universit\u00e9 Paris-Saclay","country_code":"FR","type":"education","lineage":["https://openalex.org/I277688954"]},"years":[2025,2024,2023,2022,2021,2020,2019]},{"institution":{"id":"https://openalex.org/I4210105455","ror":"https://ror.org/00z34yn88","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Padova","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210105455"]},"years":[2022]},{"institution":{"id":"https://openalex.org/I4210110254","ror":"https://ror.org/022txr781","display_name":"Laboratoire de Physique Corpusculaire de Caen","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I194210350","https://openalex.org/I4210105918","https://openalex.org/I4210110254","https://openalex.org/I4210133362","https://openalex.org/I98702875"]},"years":[2020]},{"institution":{"id":"https://openalex.org/I4210133362","ror":"https://ror.org/03fd77x13","display_name":"Institut National de Physique Nucl\u00e9aire et de Physique des Particules","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I4210133362"]},"years":[2023,2022,2021,2020,2019]},{"institution":{"id":"https://openalex.org/I4210134832","ror":"https://ror.org/03gc1p724","display_name":"Laboratoire de Physique des 2 Infinis Ir\u00e8ne Joliot-Curie","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I204730241","https://openalex.org/I277688954","https://openalex.org/I4210133362","https://openalex.org/I4210134832"]},"years":[2026,2023,2022,2021,2020]},{"institution":{"id":"https://openalex.org/I4210136779","ror":"https://ror.org/04w4m6z96","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Milano","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210136779"]},"years":[2023]},{"institution":{"id":"https://openalex.org/I4387152095","ror":"https://ror.org/007wh4e50","display_name":"Centre de Spectrom\u00e9trie Nucl\u00e9aire et de Spectrom\u00e9trie de Masse","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I204730241","https://openalex.org/I277688954","https://openalex.org/I4210133362","https://openalex.org/I4210134832","https://openalex.org/I4387152095"]},"years":[2020,2019]},{"institution":{"id":"https://openalex.org/I67581229","ror":"https://ror.org/03a5qrr21","display_name":"Istanbul University","country_code":"TR","type":"education","lineage":["https://openalex.org/I67581229"]},"years":[2022]}],"last_known_institutions":[{"id":"https://openalex.org/I1294671590","ror":"https://ror.org/02feahw73","display_name":"Centre National de la Recherche Scientifique","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I180923762","ror":"https://ror.org/00rcxh774","display_name":"University of Cologne","country_code":"DE","type":"education","lineage":["https://openalex.org/I180923762"]},{"id":"https://openalex.org/I4210134832","ror":"https://ror.org/03gc1p724","display_name":"Laboratoire de Physique des 2 Infinis Ir\u00e8ne Joliot-Curie","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I204730241","https://openalex.org/I277688954","https://openalex.org/I4210133362","https://openalex.org/I4210134832"]}],"topics":[{"id":"https://openalex.org/T10093","display_name":"Nuclear physics research studies","count":50,"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","count":40,"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","count":17,"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/T13414","display_name":"Radioactive Decay and Measurement Techniques","count":15,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"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/T10921","display_name":"Neutrino Physics Research","count":10,"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"}}],"topic_share":[{"id":"https://openalex.org/T13458","display_name":"Astronomical and nuclear sciences","value":0.0002578,"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/T13414","display_name":"Radioactive Decay and Measurement Techniques","value":9.1e-05,"subfield":{"id":"https://openalex.org/subfields/3108","display_name":"Radiation"},"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/T10093","display_name":"Nuclear physics research studies","value":8.02e-05,"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/T10921","display_name":"Neutrino Physics Research","value":4.75e-05,"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/T13209","display_name":"Cold Fusion and Nuclear Reactions","value":3.76e-05,"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"}}],"x_concepts":[{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.9598908424377441},{"id":"181500209","wikidata":"https://www.wikidata.org/wiki/Q215328","display_name":"Excited state","score":0.764141321182251},{"id":"152568617","wikidata":"https://www.wikidata.org/wiki/Q2348","display_name":"Neutron","score":0.7061025500297546},{"id":"185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","score":0.7051231861114502},{"id":"184779094","wikidata":"https://www.wikidata.org/wiki/Q26383","display_name":"Atomic physics","score":0.6876598596572876}],"counts_by_year":[{"year":2018,"works_count":4,"oa_works_count":3,"cited_by_count":0},{"year":2019,"works_count":5,"oa_works_count":3,"cited_by_count":13},{"year":2020,"works_count":11,"oa_works_count":10,"cited_by_count":18},{"year":2021,"works_count":10,"oa_works_count":9,"cited_by_count":51},{"year":2022,"works_count":6,"oa_works_count":3,"cited_by_count":60},{"year":2023,"works_count":7,"oa_works_count":6,"cited_by_count":91},{"year":2024,"works_count":4,"oa_works_count":4,"cited_by_count":99},{"year":2025,"works_count":1,"oa_works_count":1,"cited_by_count":77},{"year":2026,"works_count":2,"oa_works_count":2,"cited_by_count":110}],"display_name_alternatives":["G H\u00e4fner","G. Haefner","G. Hafner","G. H\u00e4fner","Guillaume Ha\u0308fner","Guillaume H\u00e4fner","Haefner, G.","Ha\u0308fner, Guillaume","H\u00c4FNER, Guillaume","H\u00e4fner, G."],"block_key":"g hafner","works_api_url":"https://api.openalex.org/works?filter=author.id:A5067892580","updated_date":"2026-11-08T12:57:04","created_date":"2018-07-19T00:00:00"}