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Measurement of the e+e−→K+K−π+π− cross section with the CMD-3 detector at the VEPP-2000 collider

Authors :
D.N. Shemyakin
G.V. Fedotovich
R.R. Akhmetshin
A.N. Amirkhanov
A.V. Anisenkov
V.M. Aulchenko
V.Sh. Banzarov
N.S. Bashtovoy
A.E. Bondar
A.V. Bragin
S.I. Eidelman
D.A. Epifanov
L.B. Epshteyn
A.L. Erofeev
S.E. Gayazov
A.A. Grebenuk
S.S. Gribanov
D.N. Grigoriev
F.V. Ignatov
V.L. Ivanov
S.V. Karpov
V.F. Kazanin
I.A. Koop
A.A. Korobov
O.A. Kovalenko
A.N. Kozyrev
E.A. Kozyrev
P.P. Krokovny
A.E. Kuzmenko
A.S. Kuzmin
I.B. Logashenko
A.P. Lysenko
P.A. Lukin
K.Yu. Mikhailov
V.S. Okhapkin
Yu.N. Pestov
E.A. Perevedentsev
A.S. Popov
G.P. Razuvaev
Yu.A. Rogovsky
A.A. Ruban
N.M. Ryskulov
A.E. Ryzhenenkov
V.E. Shebalin
B.A. Shwartz
D.B. Shwartz
A.L. Sibidanov
Yu.M. Shatunov
E.P. Solodov
V.M. Titov
A.A. Talyshev
A.I. Vorobiov
Yu.V. Yudin
I.M. Zemlyansky
Source :
Physics Letters B, Vol 756, Iss C, Pp 153-160 (2016)
Publication Year :
2016
Publisher :
Elsevier, 2016.

Abstract

The process e+e−→K+K−π+π− has been studied in the center-of-mass energy range from 1500 to 2000 MeV using a data sample of 23 pb−1 collected with the CMD-3 detector at the VEPP-2000 e+e− collider. Using about 24 000 selected events, the e+e−→K+K−π+π− cross section has been measured with a systematic uncertainty decreasing from 11.7% at 1500–1600 MeV to 6.1% above 1800 MeV. A preliminary study of K+K−π+π− production dynamics has been performed.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
03702693 and 18732445
Volume :
756
Issue :
C
Database :
Directory of Open Access Journals
Journal :
Physics Letters B
Publication Type :
Academic Journal
Accession number :
edsdoj.bb89513e8ddb427cb59984944ceb6129
Document Type :
article
Full Text :
https://doi.org/10.1016/j.physletb.2016.02.072