ETA-DECAYS INTO 3 PIONS

被引：16

作者：

AMSLER, C

ARMSTRONG, DS

AUGUSTIN, I

BAKER, CA

BARNETT, BM

BATTY, CJ

BEUCHERT, K

BIRIEN, P

BLUM, P

BOSSINGHAM, R

BRAUNE, K

BROSE, J

BUGG, DV

BURCHELL, M

CASE, T

COOPER, A

CRAMER, O

CROWE, KM

DEGENER, T

DIETZ, HP

VONDOMBROWSKI, S

DOSER, M

DUNNWEBER, W

ENGELHARDT, D

ENGLERT, M

FAESSLER, MA

FELIX, C

FOLGER, G

GLANTZ, R

HACKMANN, R

HADDOCK, RP

HEINSIUS, FH

HERZ, M

HESSEY, NP

HIDAS, P

ILLINGER, P

JAMNIK, D

KALINOWSKY, H

KAMMLE, B

KIEL, T

KISIEL, J

KLEMPT, E

KOBEL, M

KOCH, H

KOLO, C

KONIGSMANN, K

KUNZE, M

LAKATA, M

LANDUA, R

LUDEMANN, J

机构：

[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

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

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

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

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

[6] CERN,CH-1211 GENEVA,SWITZERLAND

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

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

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

[10] UNIV CALIF LOS ANGELES,LOS ANGELES,CA 90024

[11] UNIV MAINZ,D-55099 MAINZ,GERMANY

[12] UNIV MUNICH,D-80333 MUNICH,GERMANY

[13] CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213

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

来源：

PHYSICS LETTERS B | 1995年 / 346卷 / 1-2期

关键词：

D O I：

10.1016/0370-2693(95)00094-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The branching ratios Gamma(eta --> 3 pi(0))/Gamma(eta --> pi(+)pi(-)pi(0)) = 1.44 +/- 0.09 +/- 0.10 and Gamma(eta --> gamma gamma)/Gamma(eta --> pi(+)pi(-)pi(0)) = 1.78 +/- 0.10 +/- 0.13 have been determined using the Crystal Barrel detector at LEAR. The latter ratio yields a partial width of Gamma(eta --> pi(+)pi(-)pi(0)) = 0.26 +/- 0.03 keV using the known value for Gamma(eta -->gamma gamma). The eta --> pi(+)pi(-)pi(0). Dalitz plot is compared to the predictions of chiral perturbation theory.

引用

页码：203 / 207

页数：5

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