MEASUREMENT OF INCLUSIVE ETA PRODUCTION IN HADRONIC DECAYS OF THE Z0

被引：27

作者：

ADRIANI, O

AGUILARBENITEZ, M

AHLEN, S

AKBARI, H

ALCARAZ, J

ALOISIO, A

ALVERSON, G

ALVIGGI, MG

AMBROSI, G

AN, Q

ANDERHUB, H

ANDERSON, AL

ANDREEV, VP

ANGELOV, T

ANTONOV, L

ANTREASYAN, D

ARCE, P

AREFIEV, A

ATAMANCHUK, A

AZEMOON, T

AZIZ, T

BABA, PVKS

BAGNAIA, P

BAKKEN, JA

BAKSAY, L

BALL, RC

BANERJEE, S

BAO, J

BARILLERE, R

BARONE, L

BATTISTON, R

BAY, A

BECATTINI, F

BECKER, U

BEHNER, F

BEHRENS, J

BEINGESSNER, S

BENCZE, GL

BERDUGO, J

BERGES, P

BERTUCCI, B

BETEV, BL

BIASINI, M

BILAND, A

BILEI, GM

BIZZARRI, R

BLAISING, JJ

BLUMENFELD, B

BOBBINK, GJ

BOCCIOLINI, M

机构：

[1] IST NAZL FIS NUCL, SEZIONE NAPOLI, I-80125 NAPLES, ITALY

[2] IST NAZL FIS NUCL, SEZIONE PERUGIA, I-06100 PERUGIA, ITALY

[3] UNIV PERUGIA, I-06100 PERUGIA, ITALY

[4] UNIV FLORENCE, I-50125 FLORENCE, ITALY

[5] CTR INVEST ENERGET MEDIOAMBIENTALES & TECNOL, E-28040 MADRID, SPAIN

[6] CERN, EUROPEAN LAB PARTICLE PHYS, CH-1211 GENEVA 23, SWITZERLAND

[7] BOSTON UNIV, BOSTON, MA 02215 USA

[8] JOHNS HOPKINS UNIV, BALTIMORE, MD 21218 USA

[9] NAPLES UNIV, I-80125 NAPLES, ITALY

[10] NORTHEASTERN UNIV, BOSTON, MA 02115 USA

[11] WORLD LAB, FBLJA PROJECT, CH-1211 GENEVA, SWITZERLAND

[12] SWISS FED INST TECHNOL, CH-8093 ZURICH, SWITZERLAND

[13] MIT, CAMBRIDGE, MA 02139 USA

[14] ST PETERSBURG NUCL PHYS INST, ST PETERSBURG 188350, USSR

[15] IST NAZL FIS NUCL, SEZIONE BOL, I-40126 BOLOGNA, ITALY

[16] BULGARIAN ACAD SCI, INST MECHATRON, BU-1113 SOFIA, BULGARIA

[17] MOSCOW THEORET & EXPTL PHYS INST, MOSCOW 117259, USSR

[18] RHEIN WESTFAL TH AACHEN, INST PHYS 1, W-5100 AACHEN, GERMANY

[19] UNIV MICHIGAN, ANN ARBOR, MI 48109 USA

[20] NATL INST NUCL PHYS, SEZIONE ROMA, ROME, ITALY

[21] TATA INST FUNDAMENTAL RES, BOMBAY 400005, INDIA

[22] RHEIN WESTFAL TH AACHEN, INST PHYS 3, W-5100 AACHEN, GERMANY

[23] UNIV ALABAMA, TUSCALOOSA, AL 35486 USA

[24] LAB PHYS PARTICULES, F-74519 ANNECY LE VIEUX, FRANCE

[25] HUNGARIAN ACAD SCI, CENT RES INST PHYS, H-1525 BUDAPEST 114, HUNGARY

[26] NATL INST HIGH ENERGY PHYS, 1009 DB AMSTERDAM, NETHERLANDS

[27] UNIV ROME LA SAPIENZA, I-00185 ROME, ITALY

[28] UNIV CALIF SAN DIEGO, SAN DIEGO, CA 92182 USA

[29] CATHOLIC UNIV NIJMEGEN, 6525 ED NIJMEGEN, NETHERLANDS

[30] PRINCETON UNIV, PRINCETON, NJ 08544 USA

[31] PURDUE UNIV, W LAFAYETTE, IN 47907 USA

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

[33] UNIV GENEVA, CH-1211 GENEVA 4, SWITZERLAND

[34] INST HIGH ENERGY PHYS, BEIJING, PEOPLES R CHINA

[35] LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA

[36] NATL INST HIGH ENERGY PHYS, 6525 ED NIJMEGEN, NETHERLANDS

[37] CHINESE UNIV SCI & TECHNOL, HEFEI, ANHUI 230029, PEOPLES R CHINA

[38] PAUL SCHERRER INST, CH-5232 VILLIGEN, SWITZERLAND

[39] SHANGHAI INST CERAM, SHANGHAI, PEOPLES R CHINA

[40] INST HOCHENERGIEPHYS, O-1615 ZEUTHEN, GERMANY

[41] UNIV CYPRUS, DEPT NAT SCI, NICOSIA, CYPRUS

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

[43] HARVARD UNIV, CAMBRIDGE, MA 02139 USA

[44] CALTECH, PASADENA, CA 91125 USA

[45] LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87544 USA

[46] OAK RIDGE NATL LAB, OAK RIDGE, TN 37830 USA

[47] UNIV LAUSANNE, CH-1015 LAUSANNE, SWITZERLAND

[48] UNIV LYON 1, INST PHYS NUCL LYON, INST NATL PHYS NUCL & PHYS PARTICULES, CNRS, F-69622 VILLEURBANNE, FRANCE

来源：

PHYSICS LETTERS B | 1992年 / 286卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(92)91795-B

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a study of the inclusive eta-production based on 300 000 hadronic Z0 decays. The measured inclusive momentum distribution can be reproduced by parton shower Monte Carlo programs and also by an analytical QCD calculation. Comparing our results with low energy e+ e- data, we find that QCD describes both the shape and the energy evolution of the eta-spectrum. The comparison of eta-production rates in quark- and gluon-enriched jet samples does not show statistically significant evidence for more abundant production of eta-mesons in gluon fragmentation.

引用

页码：403 / 412

页数：10

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