New spin structure constraints on hyperfine splitting and proton Zemach radius
The 1S hyperfine splitting in hydrogen is measured to an impressive ppt precision and will soon be measured to ppm precision in muonic hydrogen. The latter measurement will rely on theoretical predictions, which are limited by knowledge of the proton polarizability effect Δpol. Data-driven evaluatio...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269324006749 |
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| author | David Ruth Karl Slifer Jian-Ping Chen Carl E. Carlson Franziska Hagelstein Vladimir Pascalutsa Alexandre Deur Sebastian Kuhn Marco Ripani Xiaochao Zheng Ryan Zielinski Chao Gu |
| author_facet | David Ruth Karl Slifer Jian-Ping Chen Carl E. Carlson Franziska Hagelstein Vladimir Pascalutsa Alexandre Deur Sebastian Kuhn Marco Ripani Xiaochao Zheng Ryan Zielinski Chao Gu |
| author_sort | David Ruth |
| collection | DOAJ |
| description | The 1S hyperfine splitting in hydrogen is measured to an impressive ppt precision and will soon be measured to ppm precision in muonic hydrogen. The latter measurement will rely on theoretical predictions, which are limited by knowledge of the proton polarizability effect Δpol. Data-driven evaluations of Δpol have long been in significant tension with baryon chiral perturbation theory. Here we present improved results for Δpol driven by new spin structure data, reducing the long-standing tension between theory and experiment and halving the dominating uncertainty in hyperfine splitting calculations. |
| format | Article |
| id | doaj-art-abaae78f0b24429b8d0695b33f8f02e5 |
| institution | Kabale University |
| issn | 0370-2693 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-abaae78f0b24429b8d0695b33f8f02e52024-11-30T07:08:53ZengElsevierPhysics Letters B0370-26932024-12-01859139116New spin structure constraints on hyperfine splitting and proton Zemach radiusDavid Ruth0Karl Slifer1Jian-Ping Chen2Carl E. Carlson3Franziska Hagelstein4Vladimir Pascalutsa5Alexandre Deur6Sebastian Kuhn7Marco Ripani8Xiaochao Zheng9Ryan Zielinski10Chao Gu11University of New Hampshire, 03824, Durham, NH, USA; Corresponding author.University of New Hampshire, 03824, Durham, NH, USAThomas Jefferson National Accelerator Facility, 23606, Newport News, VA, USAWilliam & Mary, 23187, Williamsburg, VA, USAInstitute of Nuclear Physics, Johannes Gutenberg Universität Mainz, 55099, Mainz, Germany; PRISMA+ Cluster of Excellence, Johannes Gutenberg Universität Mainz, 55099, Mainz, Germany; Laboratory for Particle Physics, Paul Scherrer Institute, 5232, Villigen PSI, SwitzerlandInstitute of Nuclear Physics, Johannes Gutenberg Universität Mainz, 55099, Mainz, GermanyThomas Jefferson National Accelerator Facility, 23606, Newport News, VA, USAOld Dominion University, 23529, Norfolk, VA, USAIstituto Nazionale di Fisica Nucleare, Sezione di Genova, I-16146, Genova, ItalyUniversity of Virginia, 22903, Charlottesville, VA, USAUniversity of New Hampshire, 03824, Durham, NH, USADuke University, 27708, Durham, NC, USAThe 1S hyperfine splitting in hydrogen is measured to an impressive ppt precision and will soon be measured to ppm precision in muonic hydrogen. The latter measurement will rely on theoretical predictions, which are limited by knowledge of the proton polarizability effect Δpol. Data-driven evaluations of Δpol have long been in significant tension with baryon chiral perturbation theory. Here we present improved results for Δpol driven by new spin structure data, reducing the long-standing tension between theory and experiment and halving the dominating uncertainty in hyperfine splitting calculations.http://www.sciencedirect.com/science/article/pii/S0370269324006749 |
| spellingShingle | David Ruth Karl Slifer Jian-Ping Chen Carl E. Carlson Franziska Hagelstein Vladimir Pascalutsa Alexandre Deur Sebastian Kuhn Marco Ripani Xiaochao Zheng Ryan Zielinski Chao Gu New spin structure constraints on hyperfine splitting and proton Zemach radius Physics Letters B |
| title | New spin structure constraints on hyperfine splitting and proton Zemach radius |
| title_full | New spin structure constraints on hyperfine splitting and proton Zemach radius |
| title_fullStr | New spin structure constraints on hyperfine splitting and proton Zemach radius |
| title_full_unstemmed | New spin structure constraints on hyperfine splitting and proton Zemach radius |
| title_short | New spin structure constraints on hyperfine splitting and proton Zemach radius |
| title_sort | new spin structure constraints on hyperfine splitting and proton zemach radius |
| url | http://www.sciencedirect.com/science/article/pii/S0370269324006749 |
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