The proton charge radius extracted from the initial-state radiation experiment at MAMI
Abstract We report on a comprehensive reinterpretation of the existing cross-section data for elastic electron-proton scattering obtained by the initial-state radiation technique, resulting in a significantly improved accuracy of the extracted proton charge radius. By refining the ext...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
Springer Berlin Heidelberg
2021
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| Online Access: | https://hdl.handle.net/1721.1/132101 |
| _version_ | 1826206545498603520 |
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| author | Mihovilovič, M. Achenbach, P. Beranek, T. Beričič, J. Bernauer, J. C Böhm, R. Bosnar, D. Cardinali, M. Correa, L. Debenjak, L. Denig, A. Distler, M. O Esser, A. Ferretti Bondy, M. I Fonvieille, H. Friedrich, J. M Friščić, I. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Mihovilovič, M. Achenbach, P. Beranek, T. Beričič, J. Bernauer, J. C Böhm, R. Bosnar, D. Cardinali, M. Correa, L. Debenjak, L. Denig, A. Distler, M. O Esser, A. Ferretti Bondy, M. I Fonvieille, H. Friedrich, J. M Friščić, I. |
| author_sort | Mihovilovič, M. |
| collection | MIT |
| description | Abstract
We report on a comprehensive reinterpretation of the existing cross-section data for elastic electron-proton scattering obtained by the initial-state radiation technique, resulting in a significantly improved accuracy of the extracted proton charge radius. By refining the external energy corrections we have achieved an outstanding description of the radiative tail, essential for a detailed investigation of the proton finite-size effects on the measured cross sections. This development, together with a novel framework for determining the radius, based on a regression analysis of the cross sections employing a polynomial model for the form factor, led us to a new value for the charge radius, which is
$$(0.878 \pm 0.011_\mathrm {stat.}\pm 0.031_\mathrm {sys.}\pm 0.002_\mathrm {mod.})\,\mathrm {fm}$$
(
0.878
±
0
.
011
stat
.
±
0
.
031
sys
.
±
0
.
002
mod
.
)
fm |
| first_indexed | 2024-09-23T13:34:38Z |
| format | Article |
| id | mit-1721.1/132101 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:34:38Z |
| publishDate | 2021 |
| publisher | Springer Berlin Heidelberg |
| record_format | dspace |
| spelling | mit-1721.1/1321012023-09-15T18:12:38Z The proton charge radius extracted from the initial-state radiation experiment at MAMI Mihovilovič, M. Achenbach, P. Beranek, T. Beričič, J. Bernauer, J. C Böhm, R. Bosnar, D. Cardinali, M. Correa, L. Debenjak, L. Denig, A. Distler, M. O Esser, A. Ferretti Bondy, M. I Fonvieille, H. Friedrich, J. M Friščić, I. Massachusetts Institute of Technology. Department of Physics Abstract We report on a comprehensive reinterpretation of the existing cross-section data for elastic electron-proton scattering obtained by the initial-state radiation technique, resulting in a significantly improved accuracy of the extracted proton charge radius. By refining the external energy corrections we have achieved an outstanding description of the radiative tail, essential for a detailed investigation of the proton finite-size effects on the measured cross sections. This development, together with a novel framework for determining the radius, based on a regression analysis of the cross sections employing a polynomial model for the form factor, led us to a new value for the charge radius, which is $$(0.878 \pm 0.011_\mathrm {stat.}\pm 0.031_\mathrm {sys.}\pm 0.002_\mathrm {mod.})\,\mathrm {fm}$$ ( 0.878 ± 0 . 011 stat . ± 0 . 031 sys . ± 0 . 002 mod . ) fm 2021-09-20T17:41:58Z 2021-09-20T17:41:58Z 2021-03-29 2021-04-04T03:25:05Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/132101 The European Physical Journal A. 2021 Mar 29;57(3):107 PUBLISHER_CC en https://doi.org/10.1140/epja/s10050-021-00414-x Creative Commons Attribution https://creativecommons.org/licenses/by/4.0/ The Author(s) application/pdf Springer Berlin Heidelberg Springer Berlin Heidelberg |
| spellingShingle | Mihovilovič, M. Achenbach, P. Beranek, T. Beričič, J. Bernauer, J. C Böhm, R. Bosnar, D. Cardinali, M. Correa, L. Debenjak, L. Denig, A. Distler, M. O Esser, A. Ferretti Bondy, M. I Fonvieille, H. Friedrich, J. M Friščić, I. The proton charge radius extracted from the initial-state radiation experiment at MAMI |
| title | The proton charge radius extracted from the initial-state radiation experiment at MAMI |
| title_full | The proton charge radius extracted from the initial-state radiation experiment at MAMI |
| title_fullStr | The proton charge radius extracted from the initial-state radiation experiment at MAMI |
| title_full_unstemmed | The proton charge radius extracted from the initial-state radiation experiment at MAMI |
| title_short | The proton charge radius extracted from the initial-state radiation experiment at MAMI |
| title_sort | proton charge radius extracted from the initial state radiation experiment at mami |
| url | https://hdl.handle.net/1721.1/132101 |
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