Inclusive J, Psi' and Chi(c) production in hadronic Z decays

被引:4
作者
Acciarri, M [1 ]
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
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] RHEIN WESTFAL TH AACHEN, INST PHYS 3, D-52056 AACHEN, GERMANY
[2] NIKHEF, NATL INST HIGH ENERGY PHYS, NL-1009 DB AMSTERDAM, NETHERLANDS
[3] UNIV AMSTERDAM, NL-1009 DB AMSTERDAM, NETHERLANDS
[4] UNIV MICHIGAN, ANN ARBOR, MI 48109 USA
[5] LAB ANNECY LE VIEUX PHYS PARTICULES, LAPP, CNRS, IN2P3, F-74941 ANNECY LE VIEUX, FRANCE
[6] JOHNS HOPKINS UNIV, BALTIMORE, MD 21218 USA
[7] UNIV BASEL, INST PHYS, CH-4056 BASEL, SWITZERLAND
[8] INST HIGH ENERGY PHYS, BEIJING 100039, PEOPLES R CHINA
[9] HUMBOLDT UNIV BERLIN, D-10099 BERLIN, GERMANY
[10] UNIV BOLOGNA, I-40126 BOLOGNA, ITALY
[11] IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY
[12] TATA INST FUNDAMENTAL RES, BOMBAY 400005, MAHARASHTRA, INDIA
[13] BOSTON UNIV, BOSTON, MA 02215 USA
[14] NORTHEASTERN UNIV, BOSTON, MA 02115 USA
[15] INST ATOM PHYS, R-76900 BUCHAREST, ROMANIA
[16] UNIV BUCHAREST, R-76900 BUCHAREST, ROMANIA
[17] HUNGARIAN ACAD SCI, CENT RES INST PHYS, H-1525 BUDAPEST 114, HUNGARY
[18] HARVARD UNIV, CAMBRIDGE, MA 02139 USA
[19] MIT, CAMBRIDGE, MA 02139 USA
[20] IST NAZL FIS NUCL, I-50125 FLORENCE, ITALY
[21] UNIV FLORENCE, I-50125 FLORENCE, ITALY
[22] CERN, EUROPEAN LAB PARTICLE PHYS, CH-1211 GENEVA 23, SWITZERLAND
[23] WORLD LAB, FBLJA PROJECT, CH-1211 GENEVA 23, SWITZERLAND
[24] UNIV GENEVA, CH-1211 GENEVA 4, SWITZERLAND
[25] CHINESE UNIV SCI & TECHNOL, USTC, HEFEI 230029, ANHUI, PEOPLES R CHINA
[26] RES INST HIGH ENERGY PHYS, SEFT, SF-00014 HELSINKI, FINLAND
[27] UNIV LAUSANNE, CH-1015 LAUSANNE, SWITZERLAND
[28] IST NAZL FIS NUCL, I-73100 LECCE, ITALY
[29] UNIV LECCE, I-73100 LECCE, ITALY
[30] LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87544 USA
[31] UNIV LYON 1, CNRS, IN2P3, INST PHYS NUCL LYON, F-69622 VILLEURBANNE, FRANCE
[32] CIEMAT, E-28040 MADRID, SPAIN
[33] IST NAZL FIS NUCL, I-20133 MILAN, ITALY
[34] INST THEORET & EXPT PHYS, MOSCOW 117259, RUSSIA
[35] IST NAZL FIS NUCL, I-80125 NAPLES, ITALY
[36] UNIV NAPLES, I-80125 NAPLES, ITALY
[37] UNIV CYPRUS, DEPT NAT SCI, NICOSIA, CYPRUS
[38] UNIV NIJMEGEN, NL-6525 ED NIJMEGEN, NETHERLANDS
[39] NATL INST NUCL PHYS & HIGH ENERGY PHYS, NL-6525 ED NIJMEGEN, NETHERLANDS
[40] OAK RIDGE NATL LAB, OAK RIDGE, TN 37831 USA
[41] CALTECH, PASADENA, CA 91125 USA
[42] IST NAZL FIS NUCL, I-06100 PERUGIA, ITALY
[43] UNIV PERUGIA, I-06100 PERUGIA, ITALY
[44] CARNEGIE MELLON UNIV, PITTSBURGH, PA 15213 USA
[45] PRINCETON UNIV, PRINCETON, NJ 08544 USA
[46] IST NAZL FIS NUCL, I-00185 ROME, ITALY
[47] UNIV ROMA LA SAPIENZA, I-00185 ROME, ITALY
[48] RUSSIAN ACAD SCI, INST NUCL PHYS, ST PETERSBURG, RUSSIA
[49] UNIV SALERNO, I-84100 SALERNO, ITALY
[50] IST NAZL FIS NUCL, I-84100 SALERNO, ITALY
关键词
D O I
10.1016/S0370-2693(97)00790-9
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report on measurements of the inclusive production of J, psi' and chi(c) mesons in hadronic Z decays, based on 3.2 million hadronic events collected using the L3 detector at LEP. The J and psi' mesons are reconstructed through their decays into lepton pairs, while the chi(c) mesons are reconstructed via the decay mode chi(c) --> J + gamma. The measured branching fractions are: Br(Z --> J + X) = (3.40 +/- 0.23 (stat.) +/- 0.27 (sys.)) x 10(-3), Br(Z --> psi' + X) = (1.6 +/- 0.5 (stat.) +/- 0.3 (sys.)) x 10(-3) Br(Z --> chi(cl) + X) = (2.7 +/- 0.6 (stat.) +/- 0.5 (sys.)) x 10(-3). In the absence of a clear chi(c2) signal, the upper limit at 90% C.L. is set: Br(Z --> chi(c2) + X) < 3.2 x 10(-3). (C) 1997 Elsevier Science B.V.
引用
收藏
页码:351 / 360
页数:10
相关论文
共 46 条
[1]   INCLUSIVE J/OMEGA, OMEGA(2S), AND B-QUARK PRODUCTION IN (P)OVER-BAR-P COLLISIONS AT ROOT-S = 1.8 TEV [J].
ABE, F ;
AMIDEI, D ;
ANWAYWIESE, C ;
APOLLINARI, G ;
ATAC, M ;
AUCHINCLOSS, P ;
AZZI, P ;
BADEN, AR ;
BACCHETTA, N ;
BADGETT, W ;
BAILEY, MW ;
BAMBERGER, A ;
DEBARBARO, P ;
BARBAROGALTIERI, A ;
BARNES, VE ;
BARNETT, BA ;
BAUER, G ;
BAUMANN, T ;
BEDESCHI, F ;
BEHRENDS, S ;
BELFORTE, S ;
BELLETTINI, G ;
BELLINGER, J ;
BENJAMIN, D ;
BENLLOCH, J ;
BENSINGER, J ;
BERETVAS, A ;
BERGE, JP ;
BERTOLUCCI, S ;
BIERY, K ;
BHADRA, S ;
BINKLEY, M ;
BISELLO, D ;
BLAIR, R ;
BLOCKER, C ;
BODEK, A ;
BOLOGNESI, V ;
BOOTH, AW ;
BOSWELL, C ;
BRANDENBURG, G ;
BROWN, D ;
BUCKLEYGEER, E ;
BUDD, HS ;
BUSETTO, G ;
BYONWAGNER, A ;
BYRUM, KL ;
CAMPAGNARI, C ;
CAMPBELL, M ;
CANER, A ;
CAREY, R .
PHYSICAL REVIEW LETTERS, 1992, 69 (26) :3704-3708
[2]  
ABE F, FERMILABPUB97024E CD
[3]   J/PSI-PRODUCTION IN THE HADRONIC DECAYS OF THE Z [J].
ABREU, P ;
ADAM, W ;
ADYE, T ;
AGASI, E ;
AJINENKO, I ;
ALEKSAN, R ;
ALEKSEEV, GD ;
ALLPORT, PP ;
ALMEHED, S ;
ALMEIDA, FML ;
ALVSVAAG, SJ ;
AMALDI, U ;
ANDREAZZA, A ;
ANTILOGUS, P ;
APEL, WD ;
APSIMON, RJ ;
ARNOUD, Y ;
ASMAN, B ;
AUGUSTIN, JE ;
AUGUSTINUS, A ;
BAILLON, P ;
BAMBADE, P ;
BARAO, F ;
BARATE, R ;
BARBIELLINI, G ;
BARDIN, DY ;
BARKER, GJ ;
BARONCELLI, A ;
BARRING, O ;
BARRIO, JA ;
BARTL, W ;
BATES, MJ ;
BATTAGLIA, M ;
BAUBILLIER, M ;
BAUDOT, J ;
BECKS, KH ;
BEGALLI, M ;
BEILLIERE, P ;
BELTRAN, P ;
BENVENUTI, AC ;
BERGGREN, M ;
BERTRAND, D ;
BIANCHI, F ;
BIGI, M ;
BILENKY, MS ;
BILLOIR, P ;
BJARNE, J ;
BLOCH, D ;
BLOCKI, J ;
BLYTH, S .
PHYSICS LETTERS B, 1994, 341 (01) :109-122
[4]   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
[5]   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
[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]   INCLUSIVE J-PRODUCTION IN Z(0) 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, 288 (3-4) :412-420
[8]   CHI(C)-PRODUCTION IN HADRONIC Z-DECAYS [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 ;
ANGELESCU, T ;
ANTONOV, L ;
ANTREASYAN, D ;
ARCE, P ;
AREFIEV, A ;
ATAMANCHUK, A ;
AZEMOON, T ;
AZIZ, T ;
BABA, PVKS ;
BAGNAIA, P ;
BAKKEN, JA ;
BALL, RC ;
BANERJEE, S ;
BAO, J ;
BARILLERE, R ;
BARONE, L ;
BASCHIROTTO, A ;
BATTISTON, R ;
BAY, A ;
BECATTINI, F ;
BECHTLUFT, J ;
BECKER, R ;
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 .
PHYSICS LETTERS B, 1993, 317 (03) :467-473
[9]   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
[10]   1ST EVIDENCE OF CHI-C PRODUCTION IN B-MESON DECAYS [J].
ALBRECHT, H ;
EHRLICHMANN, H ;
HAMACHER, T ;
KRUGER, A ;
NAU, A ;
NIPPE, A ;
REIDENBACH, M ;
SCHAFER, M ;
SCHRODER, H ;
SCHULZ, HD ;
SEFKOW, F ;
WURTH, R ;
APPUHN, RD ;
HAST, C ;
HERRERA, G ;
KOLANOSKI, H ;
LANGE, A ;
LINDNER, A ;
MANKEL, R ;
SCHIEBER, M ;
SIEGMUND, T ;
SPAAN, B ;
THURN, H ;
TOPFER, D ;
WALTHER, A ;
WEGENER, D ;
PAULINI, M ;
REIM, K ;
VOLLAND, U ;
WEGENER, H ;
MUNDT, R ;
OEST, T ;
SCHMIDTPARZEFALL, W ;
FUNK, W ;
STIEWE, J ;
WERNER, S ;
BALL, S ;
GABRIEL, JC ;
GEYER, C ;
HOLSCHER, A ;
HOFMANN, W ;
HOLZER, B ;
KHAN, S ;
KNOPFLE, KT ;
SPENGLER, J ;
BRITTON, DI ;
CHARLESWORTH, CEK ;
EDWARDS, KW ;
KAPITZA, H ;
KRIEGER, P .
PHYSICS LETTERS B, 1992, 277 (1-2) :209-214