Measurement of the π0 electromagnetic transition form factor slope

NA62 Collaboration; Evgueni Goudzovski

doi:10.1016/j.physletb.2017.02.042

Measurement of the π0 electromagnetic transition form factor slope

NA62 Collaboration, Evgueni Goudzovski

Physics and Astronomy

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Abstract

The NA62 experiment collected a large sample of charged kaon decays in 2007 with a highly efficient trigger for decays into electrons. A measurement of the π0 electromagnetic transition form factor slope parameter from 1.11×10^6 fully reconstructed K±→π±π0D, π0D→e+e−γ events is reported. The measured value a = (3.68±0.57)×10⁻² is in good agreement with theoretical expectations and previous measurements, and represents the most precise experimental determination of the slope in the time-like momentum transfer region.

Original language	English
Pages (from-to)	38-45
Journal	Physics Letters B
Volume	768
Early online date	22 Feb 2017
DOIs	https://doi.org/10.1016/j.physletb.2017.02.042
Publication status	Published - 10 May 2017

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Ernest Rutherford Fellowship : Dr Antonio Sergi - Development of the NA62 Detector and Search for New Physics with Kaon Decays
Sergi, A. (Principal Investigator)
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
25/03/13 → 24/03/18
Project: Research Councils
NA62 Common Fund
Lazzeroni, C. (Principal Investigator)
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
6/02/13 → 5/02/16
Project: Research Councils
Responsive RA submission for a "New measurement of the ratio Gamma(K->e nu)/Gamma(K->mu nu) at NA48/2"
Lazzeroni, C. (Principal Investigator) & Watkins, P. (Co-Investigator)
SCIENCE & TECHNOLOGY FACILITIES COUNCIL
1/04/08 → 31/03/11
Project: Research Councils

Cite this

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title = "Measurement of the π0 electromagnetic transition form factor slope",

abstract = "The NA62 experiment collected a large sample of charged kaon decays in 2007 with a highly efficient trigger for decays into electrons. A measurement of the π0 electromagnetic transition form factor slope parameter from 1.11×10^6 fully reconstructed K±→π±π0D, π0D→e+e−γ events is reported. The measured value a = (3.68±0.57)×10−2 is in good agreement with theoretical expectations and previous measurements, and represents the most precise experimental determination of the slope in the time-like momentum transfer region.",

author = "{NA62 Collaboration} and Evgueni Goudzovski",

year = "2017",

month = may,

day = "10",

doi = "10.1016/j.physletb.2017.02.042",

language = "English",

volume = "768",

pages = "38--45",

journal = "Physics Letters B",

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AU - NA62 Collaboration

AU - Goudzovski, Evgueni

PY - 2017/5/10

Y1 - 2017/5/10

N2 - The NA62 experiment collected a large sample of charged kaon decays in 2007 with a highly efficient trigger for decays into electrons. A measurement of the π0 electromagnetic transition form factor slope parameter from 1.11×10^6 fully reconstructed K±→π±π0D, π0D→e+e−γ events is reported. The measured value a = (3.68±0.57)×10−2 is in good agreement with theoretical expectations and previous measurements, and represents the most precise experimental determination of the slope in the time-like momentum transfer region.

AB - The NA62 experiment collected a large sample of charged kaon decays in 2007 with a highly efficient trigger for decays into electrons. A measurement of the π0 electromagnetic transition form factor slope parameter from 1.11×10^6 fully reconstructed K±→π±π0D, π0D→e+e−γ events is reported. The measured value a = (3.68±0.57)×10−2 is in good agreement with theoretical expectations and previous measurements, and represents the most precise experimental determination of the slope in the time-like momentum transfer region.

U2 - 10.1016/j.physletb.2017.02.042

DO - 10.1016/j.physletb.2017.02.042

M3 - Article

SN - 0370-2693

VL - 768

SP - 38

EP - 45

JO - Physics Letters B

JF - Physics Letters B

ER -

Measurement of the π0 electromagnetic transition form factor slope

Abstract

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Projects

Ernest Rutherford Fellowship : Dr Antonio Sergi - Development of the NA62 Detector and Search for New Physics with Kaon Decays

NA62 Common Fund

Responsive RA submission for a "New measurement of the ratio Gamma(K->e nu)/Gamma(K->mu nu) at NA48/2"

Cite this