Study of φ→π+π-π0 with CMD-2 detector

被引：53
|
作者：
Akhmetshin, R. R.
Aulchenko, V. M.
Banzarov, V. Sh.
Barkov, L. M.
Bashtovoy, N. S.
Bondar, A. E.
Bondarev, D. V.
Bragin, A. V.
Eidelman, S. I.
Epifanov, D. A. [1 ]
Fedotovich, G. V.
Gabyshev, N. I.
Gorbachev, D. A.
Grebeniuk, A. A.
Grigoriev, D. N.
Ignatov, F. V.
Karpov, S. V.
Kazanin, V. F.
Khazin, B. I.
Koop, I. A.
Krokovny, P. P.
Kuzmin, A. S.
Logashenko, I. B.
Lukin, P. A.
Lysenko, A. P.
Mikhailov, K. Yu.
Milstein, A. I.
Nesterenko, I. N.
Nikulin, M. A.
Okhapkin, V. S.
Otboev, A. V.
Perevedentsev, E. A.
Popov, A. S.
Redin, S. I.
Root, N. I.
Ruban, A. A.
Ryskulov, N. M.
Shatunov, Yu. M.
Shwartz, B. A.
Sibidanov, A. L.
Sidorov, V. A.
Skrinsky, A. N.
Smakhtin, V. P.
Snopkov, I. G.
Solodov, E. P.
Yudin, Yu. V.
Zaitsev, A. S.
Zverev, S. G.
机构：
[1] Russian Acad Sci, Budker Inst Nucl Phys, Siberian Div, Novosibirsk 630090, Russia
[2] Novosibirsk State Univ, Novosibirsk 630090, Russia
[3] Boston Univ, Boston, MA 02215 USA
[4] Weizmann Inst Sci, IL-76100 Rehovot, Israel
来源：
PHYSICS LETTERS B | 2006年 / 642卷 / 03期
关键词：
D O I：
10.1016/j.physletb.2006.09.041
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The cross section of the process e(+)e(-) -> pi(+)pi(-)pi(0) has been measured in the c.m. energy range 984-1060 MeV with the CMD-2 detector at the VEPP-2M collider. The obtained value of Br(phi -> e(+)e(-))Br(phi -> pi(+)pi(-)pi(0)) = (4.51 +/- 0.16 +/- 0.11) x 10(-5) is in good agreement with the previous measurements and has the best accuracy. Analysis of the Dalitz plot was performed. The contributions of the dominant phi ->rho pi mechanism as well as of a small direct phi -> 3 pi amplitude were determined. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：203 / 209
页数：7
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