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

页码：203 / 209

页数：7

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