Further analysis of (p)over-bar-p->3 pi(0), eta eta pi(0) and eta pi(0)pi(0) at rest

被引：51

作者：

Abele, A

Adomeit, J

Armstrong, DS

Baker, CA

Batty, CJ

Benayoun, M

Berdoz, A

Beuchert, K

Bischoff, S

Blum, P

Braune, K

Bugg, DV

Case, T

Cooper, AR

Cramer, O

Crowe, KM

Dietz, HP

Djaoshvili, N

Dunnweber, W

Engelhardt, D

Englert, M

Faessler, MA

Haddock, RP

Heinsius, FH

Herz, M

Hessey, NP

Hidas, P

Holtzhaussen, C

Illinger, P

Jamnik, D

Kammle, B

Kammel, P

Kiel, T

Koch, H

Kolo, C

Lakata, M

Matthay, H

McCrady, R

Meier, J

Meyer, CA

Montanet, L

Pinder, CN

Pinter, G

Regenfus, C

Reissmann, J

Rothel, W

Schmidt, P

Scott, I

Seibert, R

Strassburger, C

机构：

[1] RUHR UNIV BOCHUM, D-44780 BOCHUM, GERMANY

[2] UNIV BONN, D-53115 BONN, GERMANY

[3] HUNGARIAN ACAD SCI, H-1525 BUDAPEST, HUNGARY

[4] RUTHERFORD APPLETON LAB, DIDCOT OX11 0QX, OXON, ENGLAND

[5] CERN, CH-1211 GENEVA, SWITZERLAND

[6] UNIV HAMBURG, D-22761 HAMBURG, GERMANY

[7] UNIV KARLSRUHE, D-76021 KARLSRUHE, GERMANY

[8] UNIV LONDON QUEEN MARY & WESTFIELD COLL, LONDON E1 4NS, ENGLAND

[9] UNIV CALIF LOS ANGELES, LOS ANGELES, CA 90024 USA

[10] UNIV MUNICH, D-80799 MUNICH, GERMANY

[11] CARNEGIE MELLON UNIV, PITTSBURGH, PA 15213 USA

[12] CTR RECH NUCL, F-67037 STRASBOURG, FRANCE

[13] UNIV PARIS 06, LPNHE, F-75252 PARIS, FRANCE

[14] UNIV PARIS 07, LPNHE, F-75252 PARIS, FRANCE

来源：

NUCLEAR PHYSICS A | 1996年 / 609卷 / 04期

基金：

匈牙利科学研究基金会;

关键词：

D O I：

10.1016/S0375-9474(96)00306-5

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

A fresh analysis is reported of high statistics Crystal Barrel data on <(p)over bar p> --> 3 pi(0), eta eta pi(0), eta pi(0) pi(0) and eta eta'pi(0) at rest. This analysis is made fully consistent with CERN-Munich data on pi(+)pi(-) --> pi(+)pi(-) up to a mass of 1900 MeV, with GAMS data on pi(+)pi(-) --> pi(0) pi(0), and with BNL and ANL data on pi(+)pi(-) --> <K(K)over bar>, which are fitted simultaneously. There is evidence for an I = 0, J(PC) = 2(++) resonance with weak (less than or equal to 7%) coupling to pi pi, strong coupling to both rho rho and omega omega and pole position 1534 - i90 MeV. This resonance agrees qualitatively with GAMS and VES data on pi pi --> omega omega, previously interpreted in terms of a resonance at 1590-1640 MeV. New masses and widths for (A) f(0)(1370) and (B) f(0)(1500), fitted to all eight data sets, are M(A) = 1300 +/- 15 MeV, Gamma(A) = 230 +/- 15 MeV, M(B) = 1500 +/- 8 MeV, Gamma(B) = 132 +/- 15 MeV. Branching ratios to pi pi and eta eta are given, and differ significantly from earlier determinations because of a new procedure.

引用

页码：562 / 584

页数：23

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