PROTON-ANTIPROTON ANNIHILATION INTO ETA-ETA-PI-OBSERVATION OF A SCALAR RESONANCE DECAYING INTO ETA-ETA

被引：83

作者：

AMSLER, C

AUGUSTIN, I

BAKER, CA

BARNETT, BM

BATTY, CJ

BECKMANN, R

BEUCHERT, K

BIRIEN, P

BISTIRLICH, J

BLUM, P

BOSSINGHAM, R

BOSSY, H

BRAUNE, K

BUGG, DV

BURCHELL, M

CASE, T

COOPER, A

CROWE, KM

DIETZ, HP

VONDOMBROWSKI, S

DOSER, M

DUNNWEBER, W

ENGELHARDT, D

ENGLERT, M

FAESSLER, MA

FELIX, C

FOLGER, G

HACKMANN, R

HADDOCK, RP

HEINSIUS, FH

HESSEY, NP

HIDAS, P

ILLINGER, P

JAMNIK, D

JAVORFI, Z

KALINOWSKY, H

KAMMLE, B

KIEL, T

KLEMPT, E

KOCH, H

KONIGSMANN, K

KOLO, C

KUNZE, M

LANDUA, R

LUDEMANN, J

MATTHAEY, H

MERKEL, M

MERLO, JP

MEYER, CA

MEYERBERKHOUT, U

机构：

[1] UNIV KARLSRUHE,W-7500 KARLSRUHE,GERMANY

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

[3] UNIV MAINZ,W-6500 MAINZ,GERMANY

[4] UNIV HAMBURG,W-2000 HAMBURG 13,GERMANY

[5] RUHR UNIV BOCHUM,W-4630 BOCHUM,GERMANY

[6] LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

[7] UNIV MUNICH,W-8000 MUNICH 2,GERMANY

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

[9] CERN,CH-1211 GENEVA 23,SWITZERLAND

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

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

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

来源：

PHYSICS LETTERS B | 1992年 / 291卷 / 03期

关键词：

D O I：

10.1016/0370-2693(92)91057-G

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The results of a measurement of ppBAR annihilation at rest into etaetapi0 are presented. Assuming a resonance dominated model for the annihilation process an isoscalar J(PC)=0++ resonance decaying into etaeta is observed with a mass of 1560+/-25 MeV/c2 and a width of 245+/-50 MeV/c2.

引用

页码：347 / 354

页数：8

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