The proton charge radius extracted from the initial-state radiation experiment at MAMI

M. Mihovilovič; P. Achenbach; T. Beranek; J. Beričič; J. C. Bernauer; R. Böhm; D. Bosnar; M. Cardinali; L. Correa; L. Debenjak; A. Denig; M. O. Distler; A. Esser; M. I. Ferretti Bondy; H. Fonvieille; J. M. Friedrich; I. Friščić; M. Hoek; S. Kegel; H. Merkel; D. G. Middleton; U. Müller; J. Pochodzalla; B. S. Schlimme; M. Schoth; F. Schulz; C. Sfienti; S. Širca; S. Štajner; Y. Stöttinger; M. Thiel; A. Tyukin; M. Vanderhaeghen; A. B. Weber

doi:10.1140/epja/s10050-021-00414-x

The proton charge radius extracted from the initial-state radiation experiment at MAMI

M. Mihovilovič
, P. Achenbach
, T. Beranek
, J. Beričič
, J. C. Bernauer
, R. Böhm
, D. Bosnar
, M. Cardinali
, L. Correa
, L. Debenjak
, A. Denig
, M. O. Distler
, A. Esser
, M. I. Ferretti Bondy
, H. Fonvieille
, J. M. Friedrich
, I. Friščić
, M. Hoek
, S. Kegel
, H. Merkel

D. G. Middleton, U. Müller, J. Pochodzalla, B. S. Schlimme, M. Schoth, F. Schulz, C. Sfienti, S. Širca, S. Štajner, Y. Stöttinger, M. Thiel, A. Tyukin, M. Vanderhaeghen, A. B. Weber

Physics and Astronomy

University of Ljubljana
Jožef Stefan Institute
Johannes Gutenberg University Mainz
University of Zagreb
Université Blaise Pascal
Technical University of Munich
Massachusetts Institute of Technology

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

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±0.011stat.±0.031sys.±0.002mod.)fm

Original language	English
Article number	107
Journal	European Physical Journal A
Volume	57
Issue number	3
DOIs	https://doi.org/10.1140/epja/s10050-021-00414-x
State	Published - Mar 2021

Keywords

Initial-state radiation
Proton radius
Radiative corrections

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10.1140/epja/s10050-021-00414-x

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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., Hoek, M., Kegel, S., ... Weber, A. B. (2021). The proton charge radius extracted from the initial-state radiation experiment at MAMI. European Physical Journal A, 57(3), Article 107. https://doi.org/10.1140/epja/s10050-021-00414-x

@article{bae8c45f1fb845e49950b3e6671d5fa6,

title = "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 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±0.011stat.±0.031sys.±0.002mod.)fm",

keywords = "Initial-state radiation, Proton radius, Radiative corrections",

author = "M. Mihovilovi{\v c} and P. Achenbach and T. Beranek and J. Beri{\v c}i{\v c} and Bernauer, \{J. C.\} and R. B{\"o}hm and D. Bosnar and M. Cardinali and L. Correa and L. Debenjak and A. Denig and Distler, \{M. O.\} and A. Esser and Ferretti Bondy, \{M. I.\} and H. Fonvieille and Friedrich, \{J. M.\} and I. Fri{\v s}{\v c}i{\'c} and M. Hoek and S. Kegel and H. Merkel and Middleton, \{D. G.\} and U. M{\"u}ller and J. Pochodzalla and Schlimme, \{B. S.\} and M. Schoth and F. Schulz and C. Sfienti and S. {\v S}irca and S. {\v S}tajner and Y. St{\"o}ttinger and M. Thiel and A. Tyukin and M. Vanderhaeghen and Weber, \{A. B.\}",

note = "Publisher Copyright: {\textcopyright} 2021, The Author(s).",

year = "2021",

month = mar,

doi = "10.1140/epja/s10050-021-00414-x",

language = "English",

volume = "57",

journal = "European Physical Journal A",

issn = "1434-6001",

number = "3",

}

Mihovilovič, M, Achenbach, P, Beranek, T, Beričič, J, Bernauer, JC, Böhm, R, Bosnar, D, Cardinali, M, Correa, L, Debenjak, L, Denig, A, Distler, MO, Esser, A, Ferretti Bondy, MI, Fonvieille, H, Friedrich, JM, Friščić, I, Hoek, M, Kegel, S, Merkel, H, Middleton, DG, Müller, U, Pochodzalla, J, Schlimme, BS, Schoth, M, Schulz, F, Sfienti, C, Širca, S, Štajner, S, Stöttinger, Y, Thiel, M, Tyukin, A, Vanderhaeghen, M & Weber, AB 2021, 'The proton charge radius extracted from the initial-state radiation experiment at MAMI', European Physical Journal A, vol. 57, no. 3, 107. https://doi.org/10.1140/epja/s10050-021-00414-x

TY - JOUR

T1 - The proton charge radius extracted from the initial-state radiation experiment at MAMI

AU - Mihovilovič, M.

AU - Achenbach, P.

AU - Beranek, T.

AU - Beričič, J.

AU - Bernauer, J. C.

AU - Böhm, R.

AU - Bosnar, D.

AU - Cardinali, M.

AU - Correa, L.

AU - Debenjak, L.

AU - Denig, A.

AU - Distler, M. O.

AU - Esser, A.

AU - Ferretti Bondy, M. I.

AU - Fonvieille, H.

AU - Friedrich, J. M.

AU - Friščić, I.

AU - Hoek, M.

AU - Kegel, S.

AU - Merkel, H.

AU - Middleton, D. G.

AU - Müller, U.

AU - Pochodzalla, J.

AU - Schlimme, B. S.

AU - Schoth, M.

AU - Schulz, F.

AU - Sfienti, C.

AU - Širca, S.

AU - Štajner, S.

AU - Stöttinger, Y.

AU - Thiel, M.

AU - Tyukin, A.

AU - Vanderhaeghen, M.

AU - Weber, A. B.

PY - 2021/3

Y1 - 2021/3

N2 - 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±0.011stat.±0.031sys.±0.002mod.)fm

AB - 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±0.011stat.±0.031sys.±0.002mod.)fm

KW - Initial-state radiation

KW - Proton radius

KW - Radiative corrections

UR - https://www.scopus.com/pages/publications/85103596553

U2 - 10.1140/epja/s10050-021-00414-x

DO - 10.1140/epja/s10050-021-00414-x

M3 - Article

AN - SCOPUS:85103596553

SN - 1434-6001

VL - 57

JO - European Physical Journal A

JF - European Physical Journal A

IS - 3

M1 - 107

ER -

The proton charge radius extracted from the initial-state radiation experiment at MAMI

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Keywords

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