Measurements of the rare decay K-L -> e(+)e(-)e(+)e(-)

PHYSICAL REVIEW LETTERS

A Alavi-Harati
T Alexopoulos
M Arenton
K Arisaka
S Averitte
AR Barker
L Bellantoni
A Bellavance
J Belz
R Ben-David
DR Bergman
E Blucher
GJ Bock
C Bown
S Bright
E Cheu
S Childress
R Coleman
MD Corcoran
G Corti
B Cox
MB Crisler
AR Erwin
R Ford
A Glazov
A Golossanov
G Graham
J Graham
K Hagan
E Halkiadakis
J Hamm
K Hanagaki
S Hidaka
YB Hsiung
Jejer, V
DA Jensen
R Kessler
HGE Kobrak
J LaDue
A Lath
A Ledovskoy
PL McBride
P Mikelsons
E Monnier
T Nakaya
KS Nelson
H Nguyen
O'Dell, V
M Pang
R Pordes
Prasad, V
B Quinn
EJ Ramberg
RE Ray
A Roodman
M Sadamoto
S Schnetzer
K Senyo
P Shanahan
PS Shawhan
J Shields
W Slater
N Solomey
SV Somalwar
RL Stone
EC Swallow
SA Taegar
RJ Tesarek
GB Thomson
PA Toale
A Tripathi
R Tschirhart
SE Turner
YW Wah
J Wang
HB White
J Whitmore
B Winstein
R Winston
T Yamanaka
ED Zimmerman

巻: 86
号: 24
開始ページ: 5425
終了ページ: 5429
記述言語: 英語
掲載種別: 研究論文（学術雑誌）
DOI: 10.1103/PhysRevLett.86.5425
出版者・発行元: AMERICAN PHYSICAL SOC

We observe 441 K-L --> e(+)e(-)e(+)e(-) candidate events with a background of 4.2 events and measure B(K-L --> e(+)e(-)e(+)e(-)) = [3.72 +/- 0.18(stat) +/- 0.23(syst)] X 10(-8) in the KTeV/E799II experiment at Fermilab. Using the distribution of the angle between the planes of the e(+)e(-) pairs, we measure the CP parameters beta (CP) = -0.23 +/- 0.09(stat) +/- 0.02(syst) and gamma (CP) = -0.09 +/- 0.09(stat) +/- 0.02(syst). We also present the first detailed study of the e(+)e(-) invariant mass spectrum in this decay mode.

リンク情報

DOI: https://doi.org/10.1103/PhysRevLett.86.5425
Web of Science: https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000169239500005&DestApp=WOS_CPL

ID情報

DOI : 10.1103/PhysRevLett.86.5425
ISSN : 0031-9007
Web of Science ID : WOS:000169239500005

エクスポート: BibTeX RIS

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論文

Measurements of the rare decay K-L -> e(+)e(-)e(+)e(-)

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