Four ppm measurement of the antihydrogen ground-state hyperfine splitting.
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| Title: | Four ppm measurement of the antihydrogen ground-state hyperfine splitting. |
|---|---|
| Authors: | Akbari R; Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada., de Araujo Azevedo LO; Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil., Baker CJ; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK., Bertsche W; School of Physics and Astronomy, University of Manchester, Manchester, UK.; Cockcroft Institute, Sci-Tech Daresbury, Warrington, UK., Bhatt NM; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.; TRIUMF, Vancouver, British Columbia, Canada., Bonomi G; University of Brescia, Brescia, Italy.; INFN Sezione di Pavia, Pavia, Italy., Capra A; TRIUMF, Vancouver, British Columbia, Canada., Carli I; TRIUMF, Vancouver, British Columbia, Canada., L Cesar C; Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil., Charlton M; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK., Cridland Mathad A; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.; Experimental Physics Department, CERN, Geneva, Switzerland., Del Vincio A; University of Brescia, Brescia, Italy.; INFN Sezione di Pavia, Pavia, Italy.; University of Trento, Trento, Italy., Duque Quiceno D; Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.; TRIUMF, Vancouver, British Columbia, Canada., Eriksson S; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK., Evans A; Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.; TRIUMF, Vancouver, British Columbia, Canada., Fajans J; Department of Physics, University of California at Berkeley, Berkeley, CA, USA., Friesen T; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada. timothy.friesen@ucalgary.ca., Fujiwara MC; TRIUMF, Vancouver, British Columbia, Canada.; WPI-QUP, KEK, Tsukuba, Japan., Golino LM; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK., Gomes Gonçalves MB; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK., Hangst JS; Department of Physics and Astronomy, Aarhus University, Aarhus, Denmark. jeffrey.hangst@cern.ch., Hayden ME; Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada., Heidari P; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada., Hodgkinson D; Department of Physics, University of California at Berkeley, Berkeley, CA, USA., Isaac CA; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK., Jones SA; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Groningen, The Netherlands., Jonsell S; Department of Physics, Stockholm University, Stockholm, Sweden., Madsen N; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK., Marshall VR; Department of Physics and Astronomy, Aarhus University, Aarhus, Denmark., McKenna JTK; School of Physics and Astronomy, University of Manchester, Manchester, UK., Momose T; Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.; TRIUMF, Vancouver, British Columbia, Canada.; Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada., Nauta J; Experimental Physics Department, CERN, Geneva, Switzerland., Oliveira AN; School of Physics and Astronomy, University of Manchester, Manchester, UK., Powell A; Experimental Physics Department, CERN, Geneva, Switzerland.; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada., Rasmussen CØ; Experimental Physics Department, CERN, Geneva, Switzerland.; Physics Department, Brookhaven National Laboratory, Upton, NY, USA., Robertson-Brown T; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK., Robicheaux F; Department of Physics and Astronomy, Purdue University, West Lafayette, IN, USA., Sacramento RL; Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil., Sarid E; Ben Gurion University of the Negev, Be'er Sheva, Israel.; Soreq NRC, Yavne, Israel., Schoonwater J; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK., Silveira DM; Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil., Singh J; School of Physics and Astronomy, University of Manchester, Manchester, UK., Smith G; Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.; TRIUMF, Vancouver, British Columbia, Canada., So C; TRIUMF, Vancouver, British Columbia, Canada., Stracka S; INFN Sezione di Pisa, Pisa, Italy., Suh J; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada., Swadling AG; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada., Tharp TD; Physics Department, Marquette University, Milwaukee, WI, USA., Thompson KA; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK., Thompson RI; TRIUMF, Vancouver, British Columbia, Canada.; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada., Thorpe-Woods E; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK., Uribe Jimenez AJ; TRIUMF, Vancouver, British Columbia, Canada. alberto.jesus.uribe.jimenez@cern.ch.; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada. alberto.jesus.uribe.jimenez@cern.ch., Urioni M; University of Brescia, Brescia, Italy.; INFN Sezione di Pavia, Pavia, Italy., van de Werf DP; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK., Wilson SG; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada., Woosaree P; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada., Wurtele JS; Department of Physics, University of California at Berkeley, Berkeley, CA, USA. |
| Corporate Authors: | ALPHA Collaboration |
| Source: | Nature [Nature] 2026 May; Vol. 653 (8116), pp. 1022-1026. Date of Electronic Publication: 2026 May 27. |
| Publication Type: | Journal Article |
| Journal Info: | Publisher: Nature Publishing Group Country of Publication: England NLM ID: 0410462 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1476-4687 (Electronic) Linking ISSN: 00280836 NLM ISO Abbreviation: Nature Subsets: MEDLINE; PubMed not MEDLINE |
| Database: | MEDLINE Ultimate |
| FullText | Text: Availability: 0 |
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| Header | DbId: mdl DbLabel: MEDLINE Ultimate An: 42203929 AccessLevel: 2 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Four ppm measurement of the antihydrogen ground-state hyperfine splitting. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AU" term="%22Akbari+R%22">Akbari R</searchLink>; Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.<br /><searchLink fieldCode="AU" term="%22de+Araujo+Azevedo+LO%22">de Araujo Azevedo LO</searchLink>; Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.<br /><searchLink fieldCode="AU" term="%22Baker+CJ%22">Baker CJ</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.<br /><searchLink fieldCode="AU" term="%22Bertsche+W%22">Bertsche W</searchLink>; School of Physics and Astronomy, University of Manchester, Manchester, UK.; Cockcroft Institute, Sci-Tech Daresbury, Warrington, UK.<br /><searchLink fieldCode="AU" term="%22Bhatt+NM%22">Bhatt NM</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.; TRIUMF, Vancouver, British Columbia, Canada.<br /><searchLink fieldCode="AU" term="%22Bonomi+G%22">Bonomi G</searchLink>; University of Brescia, Brescia, Italy.; INFN Sezione di Pavia, Pavia, Italy.<br /><searchLink fieldCode="AU" term="%22Capra+A%22">Capra A</searchLink>; TRIUMF, Vancouver, British Columbia, Canada.<br /><searchLink fieldCode="AU" term="%22Carli+I%22">Carli I</searchLink>; TRIUMF, Vancouver, British Columbia, Canada.<br /><searchLink fieldCode="AU" term="%22L+Cesar+C%22">L Cesar C</searchLink>; Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.<br /><searchLink fieldCode="AU" term="%22Charlton+M%22">Charlton M</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.<br /><searchLink fieldCode="AU" term="%22Cridland+Mathad+A%22">Cridland Mathad A</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.; Experimental Physics Department, CERN, Geneva, Switzerland.<br /><searchLink fieldCode="AU" term="%22Del+Vincio+A%22">Del Vincio A</searchLink>; University of Brescia, Brescia, Italy.; INFN Sezione di Pavia, Pavia, Italy.; University of Trento, Trento, Italy.<br /><searchLink fieldCode="AU" term="%22Duque+Quiceno+D%22">Duque Quiceno D</searchLink>; Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.; TRIUMF, Vancouver, British Columbia, Canada.<br /><searchLink fieldCode="AU" term="%22Eriksson+S%22">Eriksson S</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.<br /><searchLink fieldCode="AU" term="%22Evans+A%22">Evans A</searchLink>; Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.; TRIUMF, Vancouver, British Columbia, Canada.<br /><searchLink fieldCode="AU" term="%22Fajans+J%22">Fajans J</searchLink>; Department of Physics, University of California at Berkeley, Berkeley, CA, USA.<br /><searchLink fieldCode="AU" term="%22Friesen+T%22">Friesen T</searchLink>; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada. timothy.friesen@ucalgary.ca.<br /><searchLink fieldCode="AU" term="%22Fujiwara+MC%22">Fujiwara MC</searchLink>; TRIUMF, Vancouver, British Columbia, Canada.; WPI-QUP, KEK, Tsukuba, Japan.<br /><searchLink fieldCode="AU" term="%22Golino+LM%22">Golino LM</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.<br /><searchLink fieldCode="AU" term="%22Gomes+Gonçalves+MB%22">Gomes Gonçalves MB</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.<br /><searchLink fieldCode="AU" term="%22Hangst+JS%22">Hangst JS</searchLink>; Department of Physics and Astronomy, Aarhus University, Aarhus, Denmark. jeffrey.hangst@cern.ch.<br /><searchLink fieldCode="AU" term="%22Hayden+ME%22">Hayden ME</searchLink>; Department of Physics, Simon Fraser University, Burnaby, British Columbia, Canada.<br /><searchLink fieldCode="AU" term="%22Heidari+P%22">Heidari P</searchLink>; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada.<br /><searchLink fieldCode="AU" term="%22Hodgkinson+D%22">Hodgkinson D</searchLink>; Department of Physics, University of California at Berkeley, Berkeley, CA, USA.<br /><searchLink fieldCode="AU" term="%22Isaac+CA%22">Isaac CA</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.<br /><searchLink fieldCode="AU" term="%22Jones+SA%22">Jones SA</searchLink>; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Groningen, The Netherlands.<br /><searchLink fieldCode="AU" term="%22Jonsell+S%22">Jonsell S</searchLink>; Department of Physics, Stockholm University, Stockholm, Sweden.<br /><searchLink fieldCode="AU" term="%22Madsen+N%22">Madsen N</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.<br /><searchLink fieldCode="AU" term="%22Marshall+VR%22">Marshall VR</searchLink>; Department of Physics and Astronomy, Aarhus University, Aarhus, Denmark.<br /><searchLink fieldCode="AU" term="%22McKenna+JTK%22">McKenna JTK</searchLink>; School of Physics and Astronomy, University of Manchester, Manchester, UK.<br /><searchLink fieldCode="AU" term="%22Momose+T%22">Momose T</searchLink>; Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.; TRIUMF, Vancouver, British Columbia, Canada.; Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada.<br /><searchLink fieldCode="AU" term="%22Nauta+J%22">Nauta J</searchLink>; Experimental Physics Department, CERN, Geneva, Switzerland.<br /><searchLink fieldCode="AU" term="%22Oliveira+AN%22">Oliveira AN</searchLink>; School of Physics and Astronomy, University of Manchester, Manchester, UK.<br /><searchLink fieldCode="AU" term="%22Powell+A%22">Powell A</searchLink>; Experimental Physics Department, CERN, Geneva, Switzerland.; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada.<br /><searchLink fieldCode="AU" term="%22Rasmussen+CØ%22">Rasmussen CØ</searchLink>; Experimental Physics Department, CERN, Geneva, Switzerland.; Physics Department, Brookhaven National Laboratory, Upton, NY, USA.<br /><searchLink fieldCode="AU" term="%22Robertson-Brown+T%22">Robertson-Brown T</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.<br /><searchLink fieldCode="AU" term="%22Robicheaux+F%22">Robicheaux F</searchLink>; Department of Physics and Astronomy, Purdue University, West Lafayette, IN, USA.<br /><searchLink fieldCode="AU" term="%22Sacramento+RL%22">Sacramento RL</searchLink>; Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.<br /><searchLink fieldCode="AU" term="%22Sarid+E%22">Sarid E</searchLink>; Ben Gurion University of the Negev, Be'er Sheva, Israel.; Soreq NRC, Yavne, Israel.<br /><searchLink fieldCode="AU" term="%22Schoonwater+J%22">Schoonwater J</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.<br /><searchLink fieldCode="AU" term="%22Silveira+DM%22">Silveira DM</searchLink>; Instituto de Fisica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.<br /><searchLink fieldCode="AU" term="%22Singh+J%22">Singh J</searchLink>; School of Physics and Astronomy, University of Manchester, Manchester, UK.<br /><searchLink fieldCode="AU" term="%22Smith+G%22">Smith G</searchLink>; Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada.; TRIUMF, Vancouver, British Columbia, Canada.<br /><searchLink fieldCode="AU" term="%22So+C%22">So C</searchLink>; TRIUMF, Vancouver, British Columbia, Canada.<br /><searchLink fieldCode="AU" term="%22Stracka+S%22">Stracka S</searchLink>; INFN Sezione di Pisa, Pisa, Italy.<br /><searchLink fieldCode="AU" term="%22Suh+J%22">Suh J</searchLink>; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada.<br /><searchLink fieldCode="AU" term="%22Swadling+AG%22">Swadling AG</searchLink>; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada.<br /><searchLink fieldCode="AU" term="%22Tharp+TD%22">Tharp TD</searchLink>; Physics Department, Marquette University, Milwaukee, WI, USA.<br /><searchLink fieldCode="AU" term="%22Thompson+KA%22">Thompson KA</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.<br /><searchLink fieldCode="AU" term="%22Thompson+RI%22">Thompson RI</searchLink>; TRIUMF, Vancouver, British Columbia, Canada.; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada.<br /><searchLink fieldCode="AU" term="%22Thorpe-Woods+E%22">Thorpe-Woods E</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.<br /><searchLink fieldCode="AU" term="%22Uribe+Jimenez+AJ%22">Uribe Jimenez AJ</searchLink>; TRIUMF, Vancouver, British Columbia, Canada. alberto.jesus.uribe.jimenez@cern.ch.; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada. alberto.jesus.uribe.jimenez@cern.ch.<br /><searchLink fieldCode="AU" term="%22Urioni+M%22">Urioni M</searchLink>; University of Brescia, Brescia, Italy.; INFN Sezione di Pavia, Pavia, Italy.<br /><searchLink fieldCode="AU" term="%22van+de+Werf+DP%22">van de Werf DP</searchLink>; Department of Physics, Faculty of Science and Engineering, Swansea University, Swansea, UK.<br /><searchLink fieldCode="AU" term="%22Wilson+SG%22">Wilson SG</searchLink>; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada.<br /><searchLink fieldCode="AU" term="%22Woosaree+P%22">Woosaree P</searchLink>; Department of Physics and Astronomy, University of Calgary, Calgary, Alberta, Canada.<br /><searchLink fieldCode="AU" term="%22Wurtele+JS%22">Wurtele JS</searchLink>; Department of Physics, University of California at Berkeley, Berkeley, CA, USA. – Name: AuthorCorporate Label: Corporate Authors Group: Au Data: <searchLink fieldCode="CA" term="%22ALPHA+Collaboration%22">ALPHA Collaboration</searchLink> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%220410462%22">Nature</searchLink> [Nature] 2026 May; Vol. 653 (8116), pp. 1022-1026. <i>Date of Electronic Publication: </i>2026 May 27. – Name: TypePub Label: Publication Type Group: TypPub Data: Journal Article – Name: TitleSource Label: Journal Info Group: Src Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Nature+Publishing+Group%22">Nature Publishing Group </searchLink><i>Country of Publication: </i>England <i>NLM ID: </i>0410462 <i>Publication Model: </i>Print-Electronic <i>Cited Medium: </i>Internet <i>ISSN: </i>1476-4687 (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%2200280836%22">00280836 </searchLink><i>NLM ISO Abbreviation: </i>Nature <i>Subsets: </i>MEDLINE; 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