Study of hadronic events and measurements of alpha(s) between 30 and 91 GeV

被引：28

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

Ball, RC

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

机构：

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

[2] HARVARD UNIV, CAMBRIDGE, MA 02139 USA

[3] MIT, CAMBRIDGE, MA 02139 USA

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

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

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

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

[8] USTC, HEFEI 230029, ANHUI, PEOPLES R CHINA

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

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

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

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

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

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

[15] CIEMAT, E-28040 MADRID, SPAIN

[16] ITEP, MOSCOW, RUSSIA

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

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

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

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

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

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

[23] CALTECH, PASADENA, CA 91125 USA

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

[25] INFM, I-06100 PERUGIA, ITALY

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

[27] PRINCETON UNIV, PRINCETON, NJ 08544 USA

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

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

[30] RUSSIAN ACAD SCI, INST NUCL PHYS, ST PETERSBURG, RUSSIA

[31] UNIV SALERNO, I-84100 SALERNO, ITALY

[32] IST NAZL FIS NUCL, I-84100 SALERNO, ITALY

[33] UNIV CALIF SAN DIEGO, LA JOLLA, CA 92093 USA

[34] UNIV SANTIAGO, DEPT FIS PARTIUCLAS ELEMENTALES, E-15706 SANTIAGO DE COMPOSTELA, SPAIN

[35] BULGARIAN ACAD SCI, CENT LAB MECHATRON & INSTRUMENTAT, BU-1113 SOFIA, BULGARIA

[36] KOREA ADV INST SCI & TECHNOL, CTR HIGH ENERGY PHYS, TAEJON 305701, SOUTH KOREA

[37] UNIV ALABAMA, TUSCALOOSA, AL 35486 USA

[38] UNIV UTRECHT, NL-3584 CB UTRECHT, NETHERLANDS

[39] NIKHEF H, NL-3584 CB UTRECHT, NETHERLANDS

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

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

[42] DESY, INST HOCHENERGIEPHYS, D-15738 ZEUTHEN, GERMANY

[43] ETH ZURICH, CH-8093 ZURICH, SWITZERLAND

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

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

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

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

[48] NIKHEF H, NATL INST HIGH ENERGY PHYS, NL-1009 DB AMSTERDAM, NETHERLANDS

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

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

来源：

PHYSICS LETTERS B | 1997年 / 411卷 / 3-4期

基金：

中国国家自然科学基金; 匈牙利科学研究基金会;

关键词：

D O I：

10.1016/S0370-2693(97)01000-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We have studied the structure of hadronic events with a hard, isolated photon in the final state (e(+)e(-) --> Z --> hadrons + gamma) in the 3.6 million hadronic events collected with the L3 detector at centre-of-mass energies around 91 GeV. The centre-of-mass energy of the hadronic system is in the range 30 GeV to 86 GeV. Event shape variables have been measured at these reduced centre-of-mass energies and have been compared with the predictions of different QCD Monte Carlo programs. The event shape variables and the energy dependence of their mean values are well reproduced by QCD models. We fit distributions of several global event shape variables to resummed O/alpha(s)(2)/calculations to determine the strong coupling constant a, over a wide range of energies. We find that the strong coupling constant alpha(s) decreases with increasing energy, as expected from QCD. (C) 1997 Elsevier Science B.V.

引用

页码：339 / 353

页数：15

共 46 条

[1] 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

[2] 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

[3]

ACCIARRI M, CERNPPE9742

[4] The forward muon detector of L3 [J].

Adam, A ;

AguilarBenitez, M ;

Alarcon, J ;

Alberdi, J ;

Alexandrov, V ;

Aloisio, A ;

Alviggi, MG ;

Anderhub, H ;

Ariza, M ;

Azemoon, T ;

Aziz, T ;

Bakker, F ;

Banerjee, S ;

Banicz, K ;

Barcala, J ;

Becker, U ;

Berdugo, J ;

Berges, P ;

Betev, BL ;

Biland, A ;

Bobbink, GJ ;

Bock, R ;

Bohm, A ;

Borissov, V ;

Bosseler, K ;

Bouvier, P ;

Brambilla, E ;

Burger, JD ;

Burgos, C ;

Buskens, J ;

Carlier, JC ;

Carlino, G ;

Casaus, J ;

Cavallo, N ;

Cerjak, I ;

Cerrada, M ;

Chang, YH ;

Chen, HS ;

Chendvankar, SR ;

Chvatchkine, V ;

Daniel, M ;

deAsmundis, R ;

Decreuse, G ;

Deiters, K ;

Djambazov, L ;

Duraffourg, P ;

Erne, FC ;

Esser, H ;

Ezekiev, S ;

Faber, G .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1996, 383 (2-3) :342-366

[5]

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

[6] THE CONSTRUCTION OF THE L3 EXPERIMENT [J].

ADEVA, B ;

AGUILARBENITEZ, M ;

AKBARI, H ;

ALCARAZ, J ;

ALOISIO, A ;

ALVAREZTAVIEL, J ;

ALVERSON, G ;

ALVIGGI, MG ;

ANDERHUB, H ;

ANDERSON, AL ;

ANGELOV, AM ;

ANGELOV, TH ;

ANTCHEV, GH ;

ANTONOV, L ;

ANTREASYAN, D ;

AREFIEV, A ;

ATANASOV, IH ;

AUROY, B ;

AYAD, R ;

AYRANOV, OL ;

AZEMOON, T ;

AZIZ, T ;

BACHMANN, U ;

BAHLER, P ;

BAKKEN, JA ;

BAKSAY, L ;

BALDINGER, H ;

BALL, RC ;

BALLANSAT, J ;

BANERJEE, S ;

BAO, J ;

BARBIER, G ;

BARONE, L ;

BASTI, G ;

BAY, A ;

BEAUVAIS, F ;

BECKER, U ;

BEISSEL, R ;

BENDIG, S ;

BENE, P ;

BERDUGO, J ;

BERGES, P ;

BERTHET, M ;

BERTSCH, Y ;

BETEV, BL ;

BILAND, A ;

BISCHOFF, A ;

BISCHOPS, M ;

BIZZARRI, R ;

BLAISING, JJ .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1990, 289 (1-2) :35-102

[7] ISOLATED HARD PHOTON-EMISSION IN HADRONIC Z0 DECAYS [J].

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 .

PHYSICS LETTERS B, 1992, 292 (3-4) :472-484

[8] RESULTS FROM THE L3 EXPERIMENT AT LEP [J].

ADRIANI, O ;

AGUILARBENITEZ, M ;

AHLEN, S ;

ALCARAZ, J ;

ALOISIO, A ;

ALVERSON, G ;

ALVIGGI, MG ;

AMBROSI, G ;

AN, Q ;

ANDERHUB, H ;

ANDERSON, AL ;

ANDREEV, VP ;

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 ;

BASCHIROTTO, A ;

BATTISTON, R ;

BAY, A ;

BECATTINI, F ;

BECKER, U ;

BEHNER, F ;

BEHRENS, J ;

BENCZE, GL ;

BERDUGO, J ;

BERGES, P ;

BERTUCCI, B ;

BETEV, BL ;

BIASINI, M ;

BILAND, A ;

BILEI, GM ;

BIZZARRI, R ;

BLAISING, JJ ;

BOBBINK, GJ ;

BOCK, R ;

BOHM, A ;

BORGIA, B ;

BOSETTI, M .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1993, 236 (1-2) :1-146

[9] DETERMINATION OF ALPHA-S FROM HADRONIC EVENT SHAPES MEASURED ON THE Z0 RESONANCE [J].

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 ;

BLOMEKE, P ;

BLUMENFELD, B ;

BOBBINK, GJ .

PHYSICS LETTERS B, 1992, 284 (3-4) :471-481

[10]

BANERJEE S, 1996, 1978

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