Measuring the α-particle charge radius with muonic helium-4 ions
Main Author: | |
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Publication Date: | 2021 |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article |
Language: | eng |
Source: | Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) |
Download full: | http://hdl.handle.net/10362/139306 |
Summary: | This work was performed at HIPA at PSI. We thank the accelerator and beamline support groups for excellent conditions. We also thank L. Simons, U. Roser, M. Nussli, H. v. Gunten, B. Zehr, W. Lustermann, A. Gendotti, A. Muller, F. Barchetti, B. van den Brandt, P. Schurter, M. Horisberger, A. Weber, S. Spielmann-Jaggi, U. Greuter, P.-R. Kettle, S. Ritt, W. Simons, K. Linner, H. Bruckner, K. S. E. Eikema and the PSI, ETH and MPQ workshops and support groups for their help. We acknowledge the support of the following grants: European Research Council (ERC) through StG. 279765 and CoG. 725039, Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Initiative EXC 1098 PRISMA (194673446) and Excellence Strategy EXC PRISMA+ (390831469), DFG_GR_3172/9-1, MOST of Taiwan under contract number 106-2112-M-007 -021 -MY3, Fundacao para a Ciencia e a Tecnologia (FCT), Portugal, and FEDER through COMPETE in the framework of project, PEstOE/FIS/UI0303/2011,and UID/04559/2020 (LIBPhys), contract numbers , SFRH/BD/52332/2013, and by SNF 200021L_138175, SNF 200020_159755 and SNF 200021_165854, as well as the ETH-FAST initiative as part of the NCCR MUST programme. |
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Measuring the α-particle charge radius with muonic helium-4 ionsGeneralThis work was performed at HIPA at PSI. We thank the accelerator and beamline support groups for excellent conditions. We also thank L. Simons, U. Roser, M. Nussli, H. v. Gunten, B. Zehr, W. Lustermann, A. Gendotti, A. Muller, F. Barchetti, B. van den Brandt, P. Schurter, M. Horisberger, A. Weber, S. Spielmann-Jaggi, U. Greuter, P.-R. Kettle, S. Ritt, W. Simons, K. Linner, H. Bruckner, K. S. E. Eikema and the PSI, ETH and MPQ workshops and support groups for their help. We acknowledge the support of the following grants: European Research Council (ERC) through StG. 279765 and CoG. 725039, Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Initiative EXC 1098 PRISMA (194673446) and Excellence Strategy EXC PRISMA+ (390831469), DFG_GR_3172/9-1, MOST of Taiwan under contract number 106-2112-M-007 -021 -MY3, Fundacao para a Ciencia e a Tecnologia (FCT), Portugal, and FEDER through COMPETE in the framework of project, PEstOE/FIS/UI0303/2011,and UID/04559/2020 (LIBPhys), contract numbers , SFRH/BD/52332/2013, and by SNF 200021L_138175, SNF 200020_159755 and SNF 200021_165854, as well as the ETH-FAST initiative as part of the NCCR MUST programme.The energy levels of hydrogen-like atomic systems can be calculated with great precision. Starting from their quantum mechanical solution, they have been refined over the years to include the electron spin, the relativistic and quantum field effects, and tiny energy shifts related to the complex structure of the nucleus. These energy shifts caused by the nuclear structure are vastly magnified in hydrogen-like systems formed by a negative muon and a nucleus, so spectroscopy of these muonic ions can be used to investigate the nuclear structure with high precision. Here we present the measurement of two 2S–2P transitions in the muonic helium-4 ion that yields a precise determination of the root-mean-square charge radius of the α particle of 1.67824(83) femtometres. This determination from atomic spectroscopy is in excellent agreement with the value from electron scattering1, but a factor of 4.8 more precise, providing a benchmark for few-nucleon theories, lattice quantum chromodynamics and electron scattering. This agreement also constrains several beyond-standard-model theories proposed to explain the proton-radius puzzle2–5, in line with recent determinations of the proton charge radius6–9, and establishes spectroscopy of light muonic atoms and ions as a precise tool for studies of nuclear properties.DF – Departamento de FísicaLIBPhys-UNLRUNKrauth, Julian J.Schuhmann, KarstenAhmed, Marwan AbdouAmaro, Fernando D.Amaro, PedroBiraben, FrançoisChen, Tzu LingCovita, Daniel S.Dax, Andreas J.Diepold, MarcFernandes, Luis M. P.Franke, BeatriceGaltier, SandrineGouvea, Andrea L.Götzfried, JohannesGraf, ThomasHänsch, Theodor W.Hartmann, JensHildebrandt, MalteIndelicato, PaulJulien, LucileKirch, KlausKnecht, AndreasLiu, Yi WeiMachado, JorgeMonteiro, Cristina M. B.Mulhauser, FrançoiseNaar, BorisNebel, TobiasNez, Françoisdos Santos, Joaquim M. F.Santos, José PauloSzabo, Csilla I.Taqqu, DavidVeloso, João F. C. A.Vogelsang, JanVoss, AndreasWeichelt, BirgitPohl, RandolfAntognini, AldoKottmann, Franz2022-06-02T22:20:35Z2021-01-282021-01-28T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article5application/pdfhttp://hdl.handle.net/10362/139306eng0028-0836PURE: 27916244https://doi.org/10.1038/s41586-021-03183-1info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-22T18:02:12Zoai:run.unl.pt:10362/139306Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T17:33:12.736017Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse |
dc.title.none.fl_str_mv |
Measuring the α-particle charge radius with muonic helium-4 ions |
title |
Measuring the α-particle charge radius with muonic helium-4 ions |
spellingShingle |
Measuring the α-particle charge radius with muonic helium-4 ions Krauth, Julian J. General |
title_short |
Measuring the α-particle charge radius with muonic helium-4 ions |
title_full |
Measuring the α-particle charge radius with muonic helium-4 ions |
title_fullStr |
Measuring the α-particle charge radius with muonic helium-4 ions |
title_full_unstemmed |
Measuring the α-particle charge radius with muonic helium-4 ions |
title_sort |
Measuring the α-particle charge radius with muonic helium-4 ions |
author |
Krauth, Julian J. |
author_facet |
Krauth, Julian J. Schuhmann, Karsten Ahmed, Marwan Abdou Amaro, Fernando D. Amaro, Pedro Biraben, François Chen, Tzu Ling Covita, Daniel S. Dax, Andreas J. Diepold, Marc Fernandes, Luis M. P. Franke, Beatrice Galtier, Sandrine Gouvea, Andrea L. Götzfried, Johannes Graf, Thomas Hänsch, Theodor W. Hartmann, Jens Hildebrandt, Malte Indelicato, Paul Julien, Lucile Kirch, Klaus Knecht, Andreas Liu, Yi Wei Machado, Jorge Monteiro, Cristina M. B. Mulhauser, Françoise Naar, Boris Nebel, Tobias Nez, François dos Santos, Joaquim M. F. Santos, José Paulo Szabo, Csilla I. Taqqu, David Veloso, João F. C. A. Vogelsang, Jan Voss, Andreas Weichelt, Birgit Pohl, Randolf Antognini, Aldo Kottmann, Franz |
author_role |
author |
author2 |
Schuhmann, Karsten Ahmed, Marwan Abdou Amaro, Fernando D. Amaro, Pedro Biraben, François Chen, Tzu Ling Covita, Daniel S. Dax, Andreas J. Diepold, Marc Fernandes, Luis M. P. Franke, Beatrice Galtier, Sandrine Gouvea, Andrea L. Götzfried, Johannes Graf, Thomas Hänsch, Theodor W. Hartmann, Jens Hildebrandt, Malte Indelicato, Paul Julien, Lucile Kirch, Klaus Knecht, Andreas Liu, Yi Wei Machado, Jorge Monteiro, Cristina M. B. Mulhauser, Françoise Naar, Boris Nebel, Tobias Nez, François dos Santos, Joaquim M. F. Santos, José Paulo Szabo, Csilla I. Taqqu, David Veloso, João F. C. A. Vogelsang, Jan Voss, Andreas Weichelt, Birgit Pohl, Randolf Antognini, Aldo Kottmann, Franz |
author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
DF – Departamento de Física LIBPhys-UNL RUN |
dc.contributor.author.fl_str_mv |
Krauth, Julian J. Schuhmann, Karsten Ahmed, Marwan Abdou Amaro, Fernando D. Amaro, Pedro Biraben, François Chen, Tzu Ling Covita, Daniel S. Dax, Andreas J. Diepold, Marc Fernandes, Luis M. P. Franke, Beatrice Galtier, Sandrine Gouvea, Andrea L. Götzfried, Johannes Graf, Thomas Hänsch, Theodor W. Hartmann, Jens Hildebrandt, Malte Indelicato, Paul Julien, Lucile Kirch, Klaus Knecht, Andreas Liu, Yi Wei Machado, Jorge Monteiro, Cristina M. B. Mulhauser, Françoise Naar, Boris Nebel, Tobias Nez, François dos Santos, Joaquim M. F. Santos, José Paulo Szabo, Csilla I. Taqqu, David Veloso, João F. C. A. Vogelsang, Jan Voss, Andreas Weichelt, Birgit Pohl, Randolf Antognini, Aldo Kottmann, Franz |
dc.subject.por.fl_str_mv |
General |
topic |
General |
description |
This work was performed at HIPA at PSI. We thank the accelerator and beamline support groups for excellent conditions. We also thank L. Simons, U. Roser, M. Nussli, H. v. Gunten, B. Zehr, W. Lustermann, A. Gendotti, A. Muller, F. Barchetti, B. van den Brandt, P. Schurter, M. Horisberger, A. Weber, S. Spielmann-Jaggi, U. Greuter, P.-R. Kettle, S. Ritt, W. Simons, K. Linner, H. Bruckner, K. S. E. Eikema and the PSI, ETH and MPQ workshops and support groups for their help. We acknowledge the support of the following grants: European Research Council (ERC) through StG. 279765 and CoG. 725039, Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Initiative EXC 1098 PRISMA (194673446) and Excellence Strategy EXC PRISMA+ (390831469), DFG_GR_3172/9-1, MOST of Taiwan under contract number 106-2112-M-007 -021 -MY3, Fundacao para a Ciencia e a Tecnologia (FCT), Portugal, and FEDER through COMPETE in the framework of project, PEstOE/FIS/UI0303/2011,and UID/04559/2020 (LIBPhys), contract numbers , SFRH/BD/52332/2013, and by SNF 200021L_138175, SNF 200020_159755 and SNF 200021_165854, as well as the ETH-FAST initiative as part of the NCCR MUST programme. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-28 2021-01-28T00:00:00Z 2022-06-02T22:20:35Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/139306 |
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http://hdl.handle.net/10362/139306 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0028-0836 PURE: 27916244 https://doi.org/10.1038/s41586-021-03183-1 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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5 application/pdf |
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