Electroweak corrections to e+e− → γγ as a luminosity process at FCC-ee

Electroweak corrections to e+e− → γγ as a luminosity process at FCC-ee

We consider large-angle two photon production in e+e− annihilation as a possible process to monitor the luminosity of a future e+e− circular collider (FCC-ee). We review and assess the status of the theoretical accuracy by performing a detailed phenomenological study of next-to-leading order electro...

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Main Authors: Carlo M. Carloni Calame, Mauro Chiesa, Guido Montagna, Oreste Nicrosini, Fulvio Piccinini
Format: Article
Language:English
Published: Elsevier 2019-11-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269319306987
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spelling doaj-a75695c1935c4e5d969945257db2b4252020-11-25T01:30:51ZengElsevierPhysics Letters B0370-26932019-11-01798Electroweak corrections to e+e− → γγ as a luminosity process at FCC-eeCarlo M. Carloni Calame0Mauro Chiesa1Guido Montagna2Oreste Nicrosini3Fulvio Piccinini4INFN, Sezione di Pavia, via A. Bassi 6, 27100 Pavia, Italy; Corresponding author.Institut für Theoretische Physik und Astrophysik, Julius-Maximilians-Universität Würzburg, Emil-Hilb-Weg 22, D-97074 Würzburg, GermanyDipartimento di Fisica, Università di Pavia, via A. Bassi 6, 27100 Pavia, Italy; INFN, Sezione di Pavia, via A. Bassi 6, 27100 Pavia, ItalyINFN, Sezione di Pavia, via A. Bassi 6, 27100 Pavia, ItalyINFN, Sezione di Pavia, via A. Bassi 6, 27100 Pavia, ItalyWe consider large-angle two photon production in e+e− annihilation as a possible process to monitor the luminosity of a future e+e− circular collider (FCC-ee). We review and assess the status of the theoretical accuracy by performing a detailed phenomenological study of next-to-leading order electroweak corrections and leading logarithmic QED contributions due to multiple photon radiation. We also estimate the impact of photonic and fermion-loop corrections at next-to-next-to-leading order and the uncertainty induced by the hadronic contribution to the vacuum polarization. Possible perspectives to address the target theoretical accuracy are briefly discussed. Keywords: Electron-positron colliders, Luminosity, Two photon production, QED, Electroweak corrections, Theoretical accuracyhttp://www.sciencedirect.com/science/article/pii/S0370269319306987
collection DOAJ
language English
format Article
sources DOAJ
author Carlo M. Carloni Calame
Mauro Chiesa
Guido Montagna
Oreste Nicrosini
Fulvio Piccinini
spellingShingle Carlo M. Carloni Calame
Mauro Chiesa
Guido Montagna
Oreste Nicrosini
Fulvio Piccinini
Electroweak corrections to e+e− → γγ as a luminosity process at FCC-ee
Physics Letters B
author_facet Carlo M. Carloni Calame
Mauro Chiesa
Guido Montagna
Oreste Nicrosini
Fulvio Piccinini
author_sort Carlo M. Carloni Calame
title Electroweak corrections to e+e− → γγ as a luminosity process at FCC-ee
title_short Electroweak corrections to e+e− → γγ as a luminosity process at FCC-ee
title_full Electroweak corrections to e+e− → γγ as a luminosity process at FCC-ee
title_fullStr Electroweak corrections to e+e− → γγ as a luminosity process at FCC-ee
title_full_unstemmed Electroweak corrections to e+e− → γγ as a luminosity process at FCC-ee
title_sort electroweak corrections to e+e− → γγ as a luminosity process at fcc-ee
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2019-11-01
description We consider large-angle two photon production in e+e− annihilation as a possible process to monitor the luminosity of a future e+e− circular collider (FCC-ee). We review and assess the status of the theoretical accuracy by performing a detailed phenomenological study of next-to-leading order electroweak corrections and leading logarithmic QED contributions due to multiple photon radiation. We also estimate the impact of photonic and fermion-loop corrections at next-to-next-to-leading order and the uncertainty induced by the hadronic contribution to the vacuum polarization. Possible perspectives to address the target theoretical accuracy are briefly discussed. Keywords: Electron-positron colliders, Luminosity, Two photon production, QED, Electroweak corrections, Theoretical accuracy
url http://www.sciencedirect.com/science/article/pii/S0370269319306987
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AT maurochiesa electroweakcorrectionstoeengasaluminosityprocessatfccee
AT guidomontagna electroweakcorrectionstoeengasaluminosityprocessatfccee
AT orestenicrosini electroweakcorrectionstoeengasaluminosityprocessatfccee
AT fulviopiccinini electroweakcorrectionstoeengasaluminosityprocessatfccee
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