Journal Article

PUBDB-2022-01898

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png High precision QED Initial State Corrections for $e^+ e^- \rightarrow \gamma^*/Z^*$ Annihilation

Blümlein, J. (Corresponding author)DESY* ; Schönwald, K.DESY*

2022
World Scientific Publ. Singapur

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Please use a persistent id in citations: doi:10.1142/S021773232230004X

Report No.: DESY-22-024; DO-TH 22/04; SAGEX-22-19; TTP-22-011; arXiv:2202.08476

Abstract: The precise knowledge of the QED initial state corrections is of instrumental importance in studyinghigh luminosity measurements in $e^+e^-$ annihilation at facilities like LEP, the International Linear ColliderILC, CLIC, a Giga-$Z$ facility, and the planned FCC\_ee. Logarithmic corrections of up to $O(\alpha^6 L^5)$ arenecessary with various subleading terms taken into account. This applies to both the inclusive measurementof processes like $e^+ e^- \rightarrow \gamma^*/Z^*$ and also the forward--backward asymmetry. As has been shownrecently, techniques from massive QCD, such as the computation of massive on--shell operator matrix elements canbe used for these calculations. We give an introduction to this topic and present both the calculationmethods and the numerical corrections having been reached so far.

Keyword(s): angular distribution, asymmetry ; luminosity, high ; annihilation ; quantum electrodynamics ; ILC Coll ; initial state ; quantum chromodynamics ; CERN LEP Stor ; CERN CLIC ; electron, annihilation ; quantum electrodynamics, higher-order ; radiation, initial-state interaction ; Initial state radiation ; precision QED ; higher order calculations ; e+e− experiments ; Z-boson observables

Note: 24 pages LATEX, 5 FiguresFulltext corresponds to the Post referee version Waiting for fulltext

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Contributing Institute(s):

1. Zeuthen Particle PhysicsTheory (Z_ZPPT)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. SAGEX - Scattering Amplitudes: from Geometry to Experiment (764850) (764850)

Experiment(s):

1. LHC: Other

Appears in the scientific report 2022

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Database coverage:
Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; NCBI Molecular Biology Database ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Blümlein, J. (Corresponding author)DESY* ; Schönwald, K.DESY*
High precision QED Initial State Corrections for $e^+ e^- \rightarrow \gamma^*/Z^*$ Annihilation
[10.3204/PUBDB-2022-01054]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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