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The hadronic contribution to the running of the electromagnetic coupling and electroweak mixing angle

As present and future experiments, on both the energy and precision frontiers, look to identify new physics beyond the Standard Model, we require more precise determinations of fundamental quantities, like the QED and electroweak couplings at various momenta. These can be obtained either entirely fr...

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Autores principales: San José, Teseo, Cè, Marco, Gérardin, Antoine, von Hippel, Georg, Meyer, Harvey B., Miura, Kohtaroh, Ottnad, Konstantin, Risch, Andreas, Wilhelm, Jonas, Wittig, Hartmut
Lenguaje:eng
Publicado: 2021
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.396.0423
http://cds.cern.ch/record/2780991
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author San José, Teseo
Cè, Marco
Gérardin, Antoine
von Hippel, Georg
Meyer, Harvey B.
Miura, Kohtaroh
Ottnad, Konstantin
Risch, Andreas
Wilhelm, Jonas
Wittig, Hartmut
author_facet San José, Teseo
Cè, Marco
Gérardin, Antoine
von Hippel, Georg
Meyer, Harvey B.
Miura, Kohtaroh
Ottnad, Konstantin
Risch, Andreas
Wilhelm, Jonas
Wittig, Hartmut
author_sort San José, Teseo
collection CERN
description As present and future experiments, on both the energy and precision frontiers, look to identify new physics beyond the Standard Model, we require more precise determinations of fundamental quantities, like the QED and electroweak couplings at various momenta. These can be obtained either entirely from experimental measurements, or from one such measurement at a particular virtuality combined with the couplings' virtuality dependence computed within the SM. Thus, a precise, entirely theoretical determination of the running couplings is highly desirable, even more since the preliminary results of the E989 experiment in Fermilab were published. We give results for the hadronic contribution to the QED running coupling $\alpha(Q^2)$ and weak mixing angle $\sin^2\theta_W(Q^2)$ in the space-like energy region $(0, 7]~\text{GeV}^2$ with a total relative uncertainty of $2\%$ at energies $Q^2 \ll 1~\text{GeV}^2$, and $1\%$ at $Q^2 > 1~\text{GeV}^2$.
id cern-2780991
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2021
record_format invenio
spelling cern-27809912023-10-26T07:14:59Zdoi:10.22323/1.396.0423http://cds.cern.ch/record/2780991engSan José, TeseoCè, MarcoGérardin, Antoinevon Hippel, GeorgMeyer, Harvey B.Miura, KohtarohOttnad, KonstantinRisch, AndreasWilhelm, JonasWittig, HartmutThe hadronic contribution to the running of the electromagnetic coupling and electroweak mixing anglehep-phParticle Physics - Phenomenologyhep-latParticle Physics - LatticeAs present and future experiments, on both the energy and precision frontiers, look to identify new physics beyond the Standard Model, we require more precise determinations of fundamental quantities, like the QED and electroweak couplings at various momenta. These can be obtained either entirely from experimental measurements, or from one such measurement at a particular virtuality combined with the couplings' virtuality dependence computed within the SM. Thus, a precise, entirely theoretical determination of the running couplings is highly desirable, even more since the preliminary results of the E989 experiment in Fermilab were published. We give results for the hadronic contribution to the QED running coupling $\alpha(Q^2)$ and weak mixing angle $\sin^2\theta_W(Q^2)$ in the space-like energy region $(0, 7]~\text{GeV}^2$ with a total relative uncertainty of $2\%$ at energies $Q^2 \ll 1~\text{GeV}^2$, and $1\%$ at $Q^2 > 1~\text{GeV}^2$.As present and future experiments, on both the energy and precision frontiers, look to identify new physics beyond the Standard Model, we require more precise determinations of fundamental quantities, like the QED and electroweak couplings at various momenta. These can be obtained either entirely from experimental measurements, or from one such measurement at a particular virtuality combined with the couplings' virtuality dependence computed within the SM. Thus, a precise, entirely theoretical determination of the running couplings is highly desirable, even more since the preliminary results of the E989 experiment in Fermilab were published. We give results for the hadronic contribution to the QED running coupling $\alpha(Q^2)$ and weak mixing angle $\sin^2\theta_W(Q^2)$ in the space-like energy region $(0, 7]~\text{GeV}^2$ with a total relative uncertainty of $2\%$ at energies $Q^2 \ll 1~\text{GeV}^2$, and $1\%$ at $Q^2 > 1~\text{GeV}^2$.arXiv:2109.04537CERN-TH-2021-126DESY-21-137MITP/21-038oai:cds.cern.ch:27809912021-09-09
spellingShingle hep-ph
Particle Physics - Phenomenology
hep-lat
Particle Physics - Lattice
San José, Teseo
Cè, Marco
Gérardin, Antoine
von Hippel, Georg
Meyer, Harvey B.
Miura, Kohtaroh
Ottnad, Konstantin
Risch, Andreas
Wilhelm, Jonas
Wittig, Hartmut
The hadronic contribution to the running of the electromagnetic coupling and electroweak mixing angle
title The hadronic contribution to the running of the electromagnetic coupling and electroweak mixing angle
title_full The hadronic contribution to the running of the electromagnetic coupling and electroweak mixing angle
title_fullStr The hadronic contribution to the running of the electromagnetic coupling and electroweak mixing angle
title_full_unstemmed The hadronic contribution to the running of the electromagnetic coupling and electroweak mixing angle
title_short The hadronic contribution to the running of the electromagnetic coupling and electroweak mixing angle
title_sort hadronic contribution to the running of the electromagnetic coupling and electroweak mixing angle
topic hep-ph
Particle Physics - Phenomenology
hep-lat
Particle Physics - Lattice
url https://dx.doi.org/10.22323/1.396.0423
http://cds.cern.ch/record/2780991
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