QCD studies and determination of alpha(s) in e(+)e(-) collisions at root s=161 GeV and 172 GeV

被引：54

作者：

Acciarri, M

Adriani, O

AguilarBenitez, M

Ahlen, S

Alcaraz, J

Alemanni, G

Allaby, J

Aloisio, A

Alverson, G

Alviggi, MG

Ambrosi, G

Anderhub, H

Andreev, VP

Angelescu, T

Anselmo, F

Arefiev, A

Azemoon, T

Aziz, T

Bagnaia, P

Baksay, L

Banerjee, S

Banicz, K

Barczyk, A

Barillere, R

Barone, L

Bartalini, P

Baschirotto, A

Basile, M

Battiston, R

Bay, A

Becattini, F

Becker, U

Behner, F

Berdugo, J

Berges, P

Bertucci, B

Betev, BL

Bhattacharya, S

Biasini, M

Biland, A

Bilei, GM

Blaising, JJ

Blyth, SC

Bobbink, GJ

Bock, R

Bohm, A

Boldizsar, L

Borgia, B

Bourilkov, D

机构：

[1] RHEIN WESTFAL TH AACHEN, INST PHYS 1, D-52056 AACHEN, GERMANY

[2] RHEIN WESTFAL TH AACHEN, INST PHYS 3, D-52056 AACHEN, GERMANY

[3] NATL INST NUCL & HIGH ENERGY PHYS, NIKHEF, NL-1009 DB AMSTERDAM, NETHERLANDS

[4] UNIV AMSTERDAM, NL-1009 DB AMSTERDAM, NETHERLANDS

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

[6] LAB ANNECY LE VIEUX PHYS PARTICULES, CNRS, IN2P3, LAPP, F-74941 ANNECY LE VIEUX, FRANCE

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

[8] UNIV BASEL, INST PHYS, CH-4056 BASEL, SWITZERLAND

[9] LOUISIANA STATE UNIV, BATON ROUGE, LA 70803 USA

[10] INST HIGH ENERGY PHYS, BEIJING 100039, PEOPLES R CHINA

[11] HUMBOLDT UNIV BERLIN, D-10099 BERLIN, GERMANY

[12] UNIV BOLOGNA, I-40126 BOLOGNA, ITALY

[13] IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY

[14] TATA INST FUNDAMENTAL RES, BOMBAY 400005, MAHARASHTRA, INDIA

[15] BOSTON UNIV, BOSTON, MA 02215 USA

[16] NORTHEASTERN UNIV, BOSTON, MA 02115 USA

[17] INST ATOM PHYS, R-76900 BUCHAREST, ROMANIA

[18] UNIV BUCHAREST, R-76900 BUCHAREST, ROMANIA

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

[20] HARVARD UNIV, CAMBRIDGE, MA 02139 USA

[21] MIT, CAMBRIDGE, MA 02139 USA

[22] IST NAZL FIS NUCL, I-50125 FLORENCE, ITALY

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

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

[25] WORLD LAB, FBLJA PROJECT, CH-1211 GENEVA 23, SWITZERLAND

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

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

[28] RES INST HIGH ENERGY PHYS, SEFT, SF-00014 HELSINKI, FINLAND

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

[30] IST NAZL FIS NUCL, I-73100 LECCE, ITALY

[31] UNIV LECCE, I-73100 LECCE, ITALY

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

[33] UNIV LYON 1, CNRS, IN2P3, INST PHYS NUCL LYON, F-69622 VILLEURBANNE, FRANCE

[34] CIEMAT, E-28040 MADRID, SPAIN

[35] IST NAZL FIS NUCL, I-20133 MILAN, ITALY

[36] INST THEORET & EXPT PHYS, MOSCOW 117259, RUSSIA

[37] IST NAZL FIS NUCL, I-80125 NAPLES, ITALY

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

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

[40] CATHOLIC UNIV NIJMEGEN, NL-6525 ED NIJMEGEN, NETHERLANDS

[41] NATL INST NUCL PHYS & HIGH ENERGY PHYS, NL-6525 ED NIJMEGEN, NETHERLANDS

[42] OAK RIDGE NATL LAB, OAK RIDGE, TN 37831 USA

[43] CALTECH, PASADENA, CA 91125 USA

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

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

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

[47] PRINCETON UNIV, PRINCETON, NJ 08544 USA

[48] IST NAZL FIS NUCL, I-00185 ROME, ITALY

[49] UNIV ROMA LA SAPIENZA, I-00185 ROME, ITALY

[50] INST PHYS NUCL, ST PETERSBURG, RUSSIA

来源：

PHYSICS LETTERS B | 1997年 / 404卷 / 3-4期

基金：

匈牙利科学研究基金会; 中国国家自然科学基金;

关键词：

D O I：

10.1016/S0370-2693(97)00647-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a study of the structure of hadronic events recorded by the L3 detector at LEP at the center of mass energies of 161 and 172 GeV. The data sample corresponds to an integrated luminosity of 21.25 pb(-1) collected during the high energy runs of 1996, The distributions of event shape variables and the energy dependence of their mean values are well reproduced by QCD models. From a comparison of the data with resummed O(alpha(s)(2)) QCD calculations, we determine the strong coupling constant at the two energies. Combining this with our earlier measurements we find that the strong coupling constant decreases with increasing energy as expected in QCD. (C) 1997 Published by Elsevier Science B.V.

引用

页码：390 / 402

页数：13

共 67 条

[1] MEASUREMENT OF THE RATE OF THE DECAY KL-]E+E-GAMMA AND OBSERVATION OF A FORM-FACTOR IN THIS DECAY [J].

BARR, GD ;

CAROSI, R ;

COWARD, D ;

CUNDY, D ;

DOBLE, N ;

GATIGNON, L ;

GIBSON, V ;

GRAFSTROM, P ;

HAGELBERG, R ;

KESSELER, G ;

VANDERLANS, J ;

NELSON, HN ;

WAHL, H ;

BLACK, R ;

CANDLIN, DJ ;

MUIR, J ;

PEACH, KJ ;

BLUMER, H ;

HEINZ, R ;

KLEINKNECHT, K ;

MAYER, P ;

PANZER, B ;

RENK, B ;

ROHRER, H ;

AUGE, E ;

CHASE, RL ;

FOURNIER, D ;

HEUSSE, P ;

ICONOMIDOUFAYARD, L ;

HARRUS, I ;

SCHAFFER, AC ;

BIGI, A ;

CALAFIURA, P ;

CALVETTI, M ;

CASALI, R ;

CERRI, C ;

FANTECHI, R ;

MANNELLI, I ;

NAPPI, A ;

PIERAZZINI, GM ;

BURKHARDT, H ;

HOLDER, M ;

KREUTZ, A ;

QUAST, G ;

ROST, M ;

SANDER, HG ;

WEIHS, W ;

WERTHENBACH, R ;

ZECH, G .

PHYSICS LETTERS B, 1990, 240 (1-2) :283-288

[2] KINETIC-EQUATIONS FOR THE QUARK GLUON PLASMA AND THEIR SEMICLASSICAL EXPANSION [J].

WEIGERT, H ;

HEINZ, U .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1991, 50 (02) :195-203

[3] MULTIPLICITY DEPENDENCE OF INTERMITTENCY IN ONE AND 2 DIMENSIONS IN PROTON-NUCLEUS INTERACTIONS AT 800 GEV [J].

SHIVPURI, RK ;

ANAND, V .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1993, 59 (01) :47-56

[4]

ABREU P, 1996, 96130 CERNPPE

[5] MEASUREMENT OF CROSS-SECTIONS AND LEPTONIC FORWARD-BACKWARD ASYMMETRIES AT THE Z-POLE AND DETERMINATION OF ELECTROWEAK PARAMETERS [J].

ACCIARRI, M ;

ADAM, A ;

ADRIANI, O ;

AGUILARBENITEZ, M ;

AHLEN, S ;

ALCARAZ, J ;

ALOISIO, A ;

ALVERSON, G ;

ALVIGGI, MG ;

AMBROSI, G ;

AN, Q ;

ANDERHUB, H ;

ANDERSON, AL ;

ANDREEV, VP ;

ANGELESCU, T ;

ANTONOV, L ;

ANTREASYAN, D ;

ALKHAZOV, G ;

ARCE, P ;

AREFIEV, A ;

AZEMOON, T ;

AZIZ, T ;

BABA, PVKS ;

BAGNAIA, P ;

BAKKEN, JA ;

BAKSAY, L ;

BALL, RC ;

BANERJEE, S ;

BANICZ, K ;

BAO, J ;

BARILLERE, R ;

BARONE, L ;

BASCHIROTTO, A ;

BATTISTON, R ;

BAY, A ;

BECATTINI, F ;

BECKER, U ;

BEHNER, F ;

BENCZE, GL ;

BERDUGO, J ;

BERGES, P ;

BERTUCCI, B ;

BETEV, BL ;

BIASINI, M ;

BILAND, A ;

BILEI, GM ;

BIZZARRI, R ;

BLAISING, JJ ;

BOBBINK, GJ ;

BOCK, R .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1994, 62 (04) :551-573

[6] THE L3 SILICON MICROVERTEX DETECTOR [J].

ACCIARRI, M ;

ADAM, A ;

ADRIANI, O ;

AHLEN, S ;

ALCARAZ, J ;

AMBROSI, G ;

BABUCCI, E ;

BAKSAY, L ;

BASCHIROTTO, A ;

BATTISTON, R ;

BAUR, W ;

BAY, A ;

BENCZE, GL ;

BERTUCCI, B ;

BIASINI, M ;

BILEI, GM ;

BOBBINK, GJ ;

BOISSEVAIN, JG ;

BOSETTI, M ;

BROOKS, ML ;

BURGER, WJ ;

BUSENITZ, J ;

CAMPS, C ;

CARIA, M ;

CASTELLINI, G ;

CASTELLO, R ;

CHECCUCCL, B ;

CHEN, A ;

COAN, TE ;

COMMICHAU, V ;

DIBITONTO, D ;

DING, J ;

DUINKER, P ;

DJAMBAZOV, L ;

EASO, S ;

EXTERMANN, P ;

FIANDRINI, E ;

GABBANINI, A ;

GOLDSTEIN, J ;

GOUGAS, A ;

HANGARTER, K ;

HAUVILLER, C ;

HERVE, A ;

HOFER, M ;

HOFER, T ;

HOU, S ;

JOSA, MI ;

KAPUSTINSKY, JS ;

KIM, D ;

KINNISON, WW .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1994, 351 (2-3) :300-312

[7] Study of the structure of hadronic events and determination of alpha(s) at root s=130 GeV and 136 GeV [J].

Acciarri, M ;

Adam, A ;

Adriani, O ;

AguilarBenitez, M ;

Ahlen, S ;

Alpat, B ;

Alcaraz, J ;

Allaby, J ;

Aloisio, A ;

Alverson, G ;

Alviggi, MG ;

Ambrosi, G ;

Anderhub, H ;

Andreev, VP ;

Angelescu, T ;

Antreasyan, D ;

Arefiev, A ;

Azemoon, T ;

Aziz, T ;

Bagnaia, P ;

Baksay, L ;

Ball, RC ;

Banerjee, S ;

Banicz, K ;

Barillere, R ;

Barone, L ;

Bartalini, P ;

Baschirotto, A ;

Basile, M ;

Battiston, R ;

Bay, A ;

Becattini, F ;

Becker, U ;

Behner, F ;

Bencze, GL ;

Berdugo, J ;

Berges, P ;

Bertucci, B ;

Betev, BL ;

Biasini, M ;

Biland, A ;

Bilei, GM ;

Blaising, JJ ;

Blyth, SC ;

Bobbink, GJ ;

Bock, R ;

Bohm, A ;

Borgia, B ;

Boucham, A ;

Bourilkov, D .

PHYSICS LETTERS B, 1996, 371 (1-2) :137-148

[8]

ACTON PD, 1992, Z PHYS C PART FIELDS, V53, P539, DOI 10.1007/BF01559731

[9]

ACTON PD, 1993, Z PHYS C PART FIELDS, V59, P1

[10]

ADEVA B, 1992, Z PHYS C PART FIELDS, V55, P39, DOI [10.1007/BF01558288, 10.1007/BF01558289]

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