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Title: A precise measurement of the direct CP violation parameter $$\mathrm{Re}(\varepsilon'/\varepsilon)$$

Abstract

The direct CP violation parameter Re(ε'/ε) has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS. With 3.3 million K L → π 0 π 0 events collected during the 1998 and 1999 running periods, a result of Re(ε'/ε) = (15.0 ± 2.7) × 10 -4 has been obtained. Finally, the result combined with the published 1997 sample is Re(ε'/ε) = (15.3 ± 2.6) × 10 -4.

Authors:
 [1]
  1. Istituto Nazionale di Fisica Nucleare (INFN), Cagliari (Italy). Dipartimento di Fisica. et al.
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
Contributing Org.:
NA48 Collaboration
OSTI Identifier:
1407024
Grant/Contract Number:  
AC02-05CH11231; 5P03B10120; 2P03B11719; GZ 616.360/2-IV; GZ 616.363/2-VIII; P08929-PHY
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 22; Journal Issue: 2; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Lai, A. A precise measurement of the direct CP violation parameter $\mathrm{Re}(\varepsilon'/\varepsilon)$. United States: N. p., 2001. Web. doi:10.1007/s100520100822.
Lai, A. A precise measurement of the direct CP violation parameter $\mathrm{Re}(\varepsilon'/\varepsilon)$. United States. doi:10.1007/s100520100822.
Lai, A. Wed . "A precise measurement of the direct CP violation parameter $\mathrm{Re}(\varepsilon'/\varepsilon)$". United States. doi:10.1007/s100520100822. https://www.osti.gov/servlets/purl/1407024.
@article{osti_1407024,
title = {A precise measurement of the direct CP violation parameter $\mathrm{Re}(\varepsilon'/\varepsilon)$},
author = {Lai, A.},
abstractNote = {The direct CP violation parameter Re(ε'/ε) has been measured from the decay rates of neutral kaons into two pions using the NA48 detector at the CERN SPS. With 3.3 million K L → π0 π0 events collected during the 1998 and 1999 running periods, a result of Re(ε'/ε) = (15.0 ± 2.7) × 10-4 has been obtained. Finally, the result combined with the published 1997 sample is Re(ε'/ε) = (15.3 ± 2.6) × 10-4.},
doi = {10.1007/s100520100822},
journal = {European Physical Journal. C, Particles and Fields},
number = 2,
volume = 22,
place = {United States},
year = {2001},
month = {11}
}

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