{"id":"https://openalex.org/W2995478768","doi":null,"title":"New Apparatus and Methods for the Measurement of the Proton and Antiproton Magnetic Moments","display_name":"New Apparatus and Methods for the Measurement of the Proton and Antiproton Magnetic Moments","publication_year":2019,"publication_date":"2019-05-13","ids":{"openalex":"https://openalex.org/W2995478768","mag":"2995478768"},"language":"en","primary_location":{"id":"pmh:oai:dash.harvard.edu:1/42029557","doi":null,"is_oa":true,"landing_page_url":"http://nrs.harvard.edu/urn-3:HUL.InstRepos:42029557","pdf_url":null,"source":{"id":"https://openalex.org/S4306401540","display_name":"Digital Access to Scholarship at Harvard (DASH) (Harvard University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I136199984","host_organization_name":"Harvard University","host_organization_lineage":["https://openalex.org/I136199984"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Thesis or Dissertation"},"volume":null,"type":"dissertation","is_traditional":true,"indexed_in":[],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://nrs.harvard.edu/urn-3:HUL.InstRepos:42029557","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5112269281","display_name":"Mason Marshall","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Mason Marshall","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":["https://openalex.org/A5112269281"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10523","display_name":"Atomic and Molecular Physics","score":0.6371999979019165,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"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/T10523","display_name":"Atomic and Molecular Physics","score":0.6371999979019165,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"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/T10048","display_name":"Particle physics theoretical and experimental studies","score":0.1331000030040741,"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/T11993","display_name":"Atomic and Subatomic Physics Research","score":0.13259999454021454,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"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/antiproton-magnetic-moment","display_name":"antiproton magnetic moment","score":0.9369999766349792},{"id":"https://openalex.org/keywords/proton-magnetic-moment","display_name":"proton magnetic moment","score":0.9980000257492065},{"id":"https://openalex.org/keywords/penning-trap","display_name":"Penning trap","score":0.8569999933242798},{"id":"https://openalex.org/keywords/cpt-symmetry","display_name":"CPT symmetry","score":0.8949999809265137},{"id":"https://openalex.org/keywords/spin-flip","display_name":"spin flip","score":0.6570000052452087},{"id":"https://openalex.org/keywords/cyclotron-energy","display_name":"cyclotron energy","score":0.7440000176429749},{"id":"https://openalex.org/keywords/particle-detection","display_name":"particle detection","score":0.5320000052452087},{"id":"https://openalex.org/keywords/high-precision-measurement","display_name":"high-precision measurement","score":0.5929999947547913}],"concepts":[{"id":"https://openalex.org/C203918408","wikidata":"https://www.wikidata.org/wiki/Q107575","display_name":"Antiproton","level":3,"score":0.8859004974365234},{"id":"https://openalex.org/C159923984","wikidata":"https://www.wikidata.org/wiki/Q17076647","display_name":"Proton magnetic moment","level":5,"score":0.5325462222099304},{"id":"https://openalex.org/C54516573","wikidata":"https://www.wikidata.org/wiki/Q2294","display_name":"Proton","level":2,"score":0.5249141454696655},{"id":"https://openalex.org/C185544564","wikidata":"https://www.wikidata.org/wiki/Q81197","display_name":"Nuclear physics","level":1,"score":0.47532087564468384},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.4435879588127136},{"id":"https://openalex.org/C103829212","wikidata":"https://www.wikidata.org/wiki/Q3319738","display_name":"Spin magnetic moment","level":4,"score":0.12320047616958618},{"id":"https://openalex.org/C21690051","wikidata":"https://www.wikidata.org/wiki/Q962347","display_name":"Spin polarization","level":3,"score":0.0},{"id":"https://openalex.org/C147120987","wikidata":"https://www.wikidata.org/wiki/Q2225","display_name":"Electron","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"pmh:oai:dash.harvard.edu:1/42029557","doi":null,"is_oa":true,"landing_page_url":"http://nrs.harvard.edu/urn-3:HUL.InstRepos:42029557","pdf_url":null,"source":{"id":"https://openalex.org/S4306401540","display_name":"Digital Access to Scholarship at Harvard (DASH) (Harvard University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I136199984","host_organization_name":"Harvard University","host_organization_lineage":["https://openalex.org/I136199984"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Thesis or Dissertation"},{"id":"mag:2995478768","doi":null,"is_oa":false,"landing_page_url":"https://dash.harvard.edu/handle/1/42029557","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":{"id":"pmh:oai:dash.harvard.edu:1/42029557","doi":null,"is_oa":true,"landing_page_url":"http://nrs.harvard.edu/urn-3:HUL.InstRepos:42029557","pdf_url":null,"source":{"id":"https://openalex.org/S4306401540","display_name":"Digital Access to Scholarship at Harvard (DASH) (Harvard University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I136199984","host_organization_name":"Harvard University","host_organization_lineage":["https://openalex.org/I136199984"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Thesis or Dissertation"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":2,"referenced_works":["https://openalex.org/W1613303600","https://openalex.org/W3155895160"],"related_works":["https://openalex.org/W2106041410","https://openalex.org/W1971034627","https://openalex.org/W2135410376","https://openalex.org/W2996129812","https://openalex.org/W2168933798","https://openalex.org/W2100587093","https://openalex.org/W2085605890","https://openalex.org/W1664597115","https://openalex.org/W2015383559","https://openalex.org/W1789595881"],"abstract_inverted_index":{"The":[0,19,79,154,179],"first":[1,55],"direct":[2,56],"measurement":[3,42,98],"of":[4,43,58,68,81,85,95,102,109,141,148,165,184],"the":[5,34,44,49,54,59,93,115,131,163,172,176],"antiproton":[6,62],"magnetic":[7,46,63,117],"moment":[8,47],"was":[9,53],"performed":[10],"using":[11],"a":[12,16,40,86,107,136,149,166],"single":[13,87,146,150],"particle":[14,190],"in":[15,48,134,162,175],"Penning":[17,195],"trap.":[18],"result,":[20],"\u03bc\u02c9p/\u03bcN":[21],"=":[22,73],"2.792":[23],"845":[24],"(12)":[25],"[4.4":[26],"ppm],":[27],"is":[28,143,156,198],"680":[29],"times":[30],"more":[31],"precise":[32],"than":[33],"previous":[35],"best":[36],"measurement.":[37,139],"Together":[38],"with":[39,188],"prior":[41],"proton":[45,60,151],"same":[50],"apparatus,":[51,187],"this":[52,104],"comparison":[57],"and":[61,170,182,192],"moments.":[64],"This":[65],"stringent":[66],"test":[67],"CPT":[69],"invariance":[70],"gave":[71],"\u03bc\u02c9p/\u03bcp":[72],"\u22121.000":[74],"000":[75],"(5)":[76],"[5.0":[77],"ppm].":[78],"observation":[80],"individual":[82],"spin":[83,123,160],"flips":[84,161],"proton,":[88],"also":[89],"reported":[90],"here,":[91],"opened":[92],"possibility":[94],"further":[96],"improving":[97],"precision":[99],"by":[100,106],"orders":[101],"magnitude.\\nImproving":[103],"result":[105],"factor":[108],"~104":[110],"requires":[111],"measuring":[112],"\u03bc":[113],"outside":[114],"large":[116],"field":[118],"gradient":[119],"needed":[120],"to":[121,129,144,157],"detect":[122],"flips.":[124],"Two":[125],"methods":[126],"are":[127],"proposed":[128],"avoid":[130],"leading":[132],"uncertainties":[133],"such":[135],"high-precision":[137],"two-trap":[138],"One":[140],"these":[142],"measure":[145],"spin-flips":[147],"or":[152],"antiproton.":[153],"other":[155],"induce":[158],"multiple":[159],"presence":[164],"spin-cyclotron":[167],"coupling":[168],"drive,":[169],"observe":[171],"resulting":[173],"change":[174],"cyclotron":[177],"energy.":[178],"design,":[180],"construction,":[181],"commissioning":[183],"an":[185],"appropriate":[186],"high-quality":[189],"detection":[191],"newly":[193],"designed":[194],"trap":[196],"electrodes,":[197],"reported.":[199]},"counts_by_year":[],"updated_date":"2025-11-06T04:12:42.849631","created_date":"2019-12-26T00:00:00"}
