Electromagnetic proton–neutron mass difference
Abstract
In this paper, we discuss the Cottingham formula and evaluate the proton–neutron electromagnetic mass difference exploiting the state-of-the-art phenomenological input.We decompose individual contributions to the mass splitting into Born, inelastic and subtraction terms. We evaluate the subtraction-function contribution connecting the input based on experimental data with the operator product expansion matched to QCD which allows us to avoid model dependence and to reduce errors of this contribution. We evaluate inelastic and Born terms accounting for modern low-$Q^2$ data.
- Authors:
-
[1]
- Johannes Gutenberg Univ., Mainz (Germany); Univ. of Kentucky, Lexington, KY (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Publication Date:
- Research Org.:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); German Research Foundation (DFG); National Institute of Standards and Technology (NIST); Universities Research Association
- OSTI Identifier:
- 1546035
- Report Number(s):
- arXiv:1810.02502; FERMILAB-PUB-19-216-V
Journal ID: ISSN 2190-5444; oai:inspirehep.net:1697118
- Grant/Contract Number:
- AC02-07CH11359; SC0019095
- Resource Type:
- Accepted Manuscript
- Journal Name:
- European Physical Journal Plus
- Additional Journal Information:
- Journal Volume: 135; Journal Issue: 6; Journal ID: ISSN 2190-5444
- Publisher:
- Springer
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Tomalak, Oleksandr. Electromagnetic proton–neutron mass difference. United States: N. p., 2020.
Web. doi:10.1140/epjp/s13360-020-00413-9.
Tomalak, Oleksandr. Electromagnetic proton–neutron mass difference. United States. https://doi.org/10.1140/epjp/s13360-020-00413-9
Tomalak, Oleksandr. Tue .
"Electromagnetic proton–neutron mass difference". United States. https://doi.org/10.1140/epjp/s13360-020-00413-9. https://www.osti.gov/servlets/purl/1546035.
@article{osti_1546035,
title = {Electromagnetic proton–neutron mass difference},
author = {Tomalak, Oleksandr},
abstractNote = {In this paper, we discuss the Cottingham formula and evaluate the proton–neutron electromagnetic mass difference exploiting the state-of-the-art phenomenological input.We decompose individual contributions to the mass splitting into Born, inelastic and subtraction terms. We evaluate the subtraction-function contribution connecting the input based on experimental data with the operator product expansion matched to QCD which allows us to avoid model dependence and to reduce errors of this contribution. We evaluate inelastic and Born terms accounting for modern low-$Q^2$ data.},
doi = {10.1140/epjp/s13360-020-00413-9},
journal = {European Physical Journal Plus},
number = 6,
volume = 135,
place = {United States},
year = {2020},
month = {5}
}
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