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Search for the flavor-changing neutral current decay D0 0+ - with the HERA-B detector
Author(s) -
I. Abt,
M. Adams,
H. Albrecht,
V. Amaral,
António Amorim,
S. J. Aplin,
V. Aushev,
Yu. Sh. Bagaturia,
V. Balagura,
M. Bargiotti,
O. Barsukova,
J. Bastos,
C. Bauer,
Th. Bauer,
A. Belkov,
Ar. Belkov,
Ivan Belotelov,
A. Bertin,
B. Bobchenko,
M. Böcker,
A. Bogatyrev,
G. Bohm,
M. Bräuer,
M. Bruinsma,
Marco Bruschi,
Peter Buchholz,
T. Buran,
J. Carvalho,
P. Conde,
C. Cruse,
Mogens Dam,
K. M. Danielsen,
Michael V. Danilov,
S. De Castro,
H. Deppe,
X. Dong,
H. B. Dreis,
V. Egorytchev,
Klaus Ehret,
F. Eisele,
D. Emeliyanov,
S. Essenov,
Leonardo M. Fabbri,
Pietro Faccioli,
M. Feuerstack-Raible,
J. Flammer,
B. Fominykh,
M. Funcke,
L. Garrido,
Benedetto Giacobbe,
J. Glaess,
D. Goloubkov,
Y. Goloubkov,
A. Golutvin,
I. Golutvin,
I. Gorbounov,
Andrej Gorišek,
O. Gouchtchine,
D. C. Goulart,
S. Gradl,
W. Gradl,
Y. Guilitsky,
J. D. Hansen,
Jose M Hernandez,
Werner Hofmann,
T. Hott,
Wouter Hulsbergen,
U. Husemann,
O. Igonkina,
M. Ispiryan,
T. Jagla,
C. Jiang,
H. Kapitza,
S. Karabekyan,
N. N. Karpenko,
S. Keller,
F. Khasanov,
Yu.T. Kiryushin,
K. T. Knöpfle,
Hermann Kolanoski,
S. Korpar,
C. Krauss,
P. Kreuzer,
P. Krizan,
D. Kruecker,
T. Kvaratskheliia,
A. V. Lanyov,
Kwong Lau,
B. Lewendel,
T. Lohse,
R. Maenner,
S. Masciocchi,
I. Massa,
L. Matchikhilian,
G. Medin,
M. Medinnis,
M. Mevius,
A. Michetti,
Y. Mikhailov,
R. Mizuk,
R. Muresan,
M. Negodaev,
M. Nörenberg,
S. Nowak,
M. T. Núñez Pardo de Vera,
M. Ouchrif,
Farid Ould-Saada,
C. Padilla,
D. Peralta,
R. Pernack,
R. Pestotnik,
M. Piccinini,
M. A. Pleier,
M. Poli,
V. Popov,
A. Pose,
D. Pose,
V. Pugatch,
Yuriy Pylypchenko,
J. Pyrlik,
K. Reeves,
D. Ressing,
I. Riu,
P. Robmann,
V. Rybnikov,
F. Sanchez,
A. Sbrizzi,
Michael Schmelling,
B. Schmidt,
A. Schreiner,
Henning Schroder,
A. J. Schwartz,
Albert Schwarz,
B. Schwenninger,
B. Schwingenheuer,
F. G. Sciacca,
Nicola Semprini-Cesari,
S. Shuvalov,
L. Sozuer,
S. Solunin,
A. Somov,
S. Somov,
Johannes Spengler,
Roberto Spighi,
A. Spiridonov,
Aleš Stanovnik,
M. Starič,
C. Stegmann,
M. Symalla,
I. Tikhomirov,
M. Titov,
I. Tsakov,
U. Uwer,
C. van Eldik,
Y. Vassiliev,
Mauro Villa,
A. Vitale,
Ilija Vukotic,
H. Wahlberg,
A. H. Walenta,
M. Walter,
J. J. Wang,
D. Wegener,
U. Werthenbach,
H. Wolters,
R. Wurth,
A. Wurz,
Y. Zaitsev,
Mikhail Zavertyaev,
T. Zeuner,
A. Zhelezov,
Z. Zheng,
Robert Zimmermann,
T. Zivko,
Antonio Zoccoli,
A. Alexandrov,
J. Batista,
M. Buchler,
F. Grimaldi,
R. F. Harr,
J. Kessler,
S. Kupper,
B. Lomonosov,
S. Nam,
M. zur Nedden,
S. Prystupa,
O. Rick,
J. Shiu,
L. Silva,
K. Smirnov,
H. S. Subramania
Publication year - 2004
Publication title -
physics letters b
Language(s) - English
DOI - 10.1
We report on a search for the flavor-changing neutral current decay D 0 → μ + μ − using 50 × 10 6 events recorded with a dimuon trigger in interactions of 920 GeV protons with nuclei by the HERA-B experiment. We find no evidence for such decays and set a 90% confidence level upper limit on the branching fraction B ( D 0 → μ + μ − ) 2.0 × 10 − 6 .

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