Heavy quarkonium production in Z decays

被引：20

作者：

Acciarri, M

Achard, P

Adriani, O

Aguilar-Benitez, M

Alcaraz, J

Alemanni, G

Allaby, J

Aloisio, A

Alviggi, MG

Ambrosi, G

Anderhub, H

Andreev, VP

Angelescu, T

Anselmo, F

Arefiev, A

Azemoon, T

Aziz, T

Bagnaia, P

Baksay, L

Balandras, A

Ball, RC

Banerjee, S

Banicz, K

Barczyk, A

Barillère, R

Barone, L

Bartalini, P

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

Blaising, JJ

Blyth, SC

Bobbink, GJ

Böhm, A

Boldizsar, L

Borgia, B

Bourilkov, D

Bourquin, M

Braccini, S

机构：

[1] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy

[2] Rhein Westfal TH Aachen, Inst Phys 1, D-52056 Aachen, Germany

[3] Rhein Westfal TH Aachen, Inst Phys 3, D-52056 Aachen, Germany

[4] NIKHEF H, Natl Lab High Energy Phys, NL-1009 DB Amsterdam, Netherlands

[5] Univ Amsterdam, NL-1009 DB Amsterdam, Netherlands

[6] Univ Michigan, Ann Arbor, MI 48109 USA

[7] Lab Annecy Le Vieux Phys Particules, LAPP, IN2P3, CNRS, F-74941 Annecy Le Vieux, France

[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, D-10099 Berlin, Germany

[12] Univ Bologna, I-40126 Bologna, Italy

[13] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[14] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[15] Northeastern Univ, Boston, MA 02115 USA

[16] Inst Atom Phys, R-76900 Bucharest, Romania

[17] Univ Bucharest, R-76900 Bucharest, Romania

[18] Hungarian Acad Sci, Cent Res Inst Phys, H-1525 Budapest 114, Hungary

[19] MIT, Cambridge, MA 02139 USA

[20] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy

[21] Univ Florence, I-50125 Florence, Italy

[22] CERN, European Lab Particle Phys, CH-1211 Geneva 23, Switzerland

[23] FBLJA Project, World Lab, CH-1211 Geneva 23, Switzerland

[24] Univ Geneva, CH-1211 Geneva 4, Switzerland

[25] Univ Sci & Technol China, 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, Sez Lecce, 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, Inst Phys Nucl, IN2P3, CNRS, F-69622 Villeurbanne, France

[32] CIEMAT, E-28040 Madrid, Spain

[33] Inst Theoret & Expt Phys, Moscow 117259, Russia

[34] Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy

[35] Univ Naples Federico II, I-80125 Naples, Italy

[36] Univ Cyprus, Dept Nat Sci, Nicosia, Cyprus

[37] Catholic Univ Nijmegen, NL-6525 ED Nijmegen, Netherlands

[38] Natl Inst Nucl Phys & High Energy Phys, NL-6525 ED Nijmegen, Netherlands

[39] CALTECH, Pasadena, CA 91125 USA

[40] Ist Nazl Fis Nucl, Sez Perugia, I-06100 Perugia, Italy

[41] Univ Perugia, I-06100 Perugia, Italy

[42] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA

[43] Princeton Univ, Princeton, NJ 08544 USA

[44] Ist Nazl Fis Nucl, Sez Roma, I-00185 Rome, Italy

[45] Univ Roma La Sapienza, I-00185 Rome, Italy

[46] Russian Acad Sci, Inst Nucl Phys, St Petersburg, Russia

[47] Univ Salerno, I-84100 Salerno, Italy

[48] Ist Nazl Fis Nucl, I-84100 Salerno, Italy

[49] Univ Calif San Diego, San Diego, CA 92093 USA

[50] Univ Santiago, Dept Fis Particular Elementales, E-15706 Santiago, Spain

来源：

PHYSICS LETTERS B | 1999年 / 453卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(99)00280-4

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report measurements of the inclusive production of heavy quarkonium states in Z decays based on the analysis of 3.6 million hadronic events collected by the L3 detector at LEP. The measurement of inclusive J production and an improved 95% confidence level upper limit on gamma production are presented. In addition, two independent measurements of the ratio, f(p), Of prompt J mesons to those from B decay are made using two different isolation cuts to separate prompt J mesons from J mesons produced in the decays of b hadrons. The results are: Br(Z --> J + X) = (3.21 +/- 0.21 (stat.)(-0.28)(+0.19) (sys.)) X 10(-3) Br(Z --> gamma(1S) + X) < 4.4 x 10(-5), f(p) = (7.1 +/- 2.1 (stat.) +/- 1.2 (sys.)(-0.8)(+1.5) (theo.)) X 10(-2). (C) 1999 Published by Elsevier Science B.V. All rights reserved.

引用

页码：94 / 106

页数：13

共 39 条

[1] UPSILON-PRODUCTION IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV [J].

ABE, F ;

ALBROW, MG ;

AMENDOLIA, SR ;

AMIDEI, D ;

ANTOS, J ;

ANWAYWIESE, C ;

APOLLINARI, G ;

ARETI, H ;

ATAC, M ;

AUCHINCLOSS, P ;

AZFAR, F ;

AZZI, P ;

BACCHETTA, N ;

BADGETT, W ;

BAILEY, MW ;

BAO, J ;

DEBARBARO, P ;

BARBAROGALTIERI, A ;

BARNES, VE ;

BARNETT, BA ;

BARTALINI, P ;

BAUER, G ;

BAUMANN, T ;

BEDESCHI, F ;

BEHRENDS, S ;

BELFORTE, S ;

BELLETTINI, G ;

BELLINGER, J ;

BENJAMIN, D ;

BENLLOCH, J ;

BENSINGER, J ;

BENTON, D ;

BERETVAS, A ;

BERGE, JP ;

BERTOLUCCI, S ;

BHATTI, A ;

BIERY, K ;

BINKLEY, M ;

BIRD, F ;

BISELLO, D ;

BLAIR, RE ;

BLOCKER, C ;

BODEK, A ;

BOKHARI, W ;

BOLOGNESI, V ;

BORTOLETTO, D ;

BOSWELL, C ;

BOULOS, T ;

BRANDENBURG, G ;

BROMBERG, C .

PHYSICAL REVIEW LETTERS, 1995, 75 (24) :4358-4363

[2] 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

[3] BOTTONIUM PRODUCTION AT LEP [J].

ABRAHAM, KJ .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1989, 44 (03) :467-469

[4] 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

[5] Search for promptly produced heavy quarkonium states in hadronic Z decays [J].

Abreu, P ;

Adam, W ;

Adye, T ;

Agasi, E ;

Ajinenko, I ;

Aleksan, R ;

Alekseev, GD ;

Allport, PP ;

Almehed, S ;

Alvsvaag, SJ ;

Amaldi, U ;

Amato, S ;

Andreazza, A ;

Andrieux, ML ;

Antilogus, P ;

Apel, WD ;

Arnoud, Y ;

Asman, B ;

Augustin, 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 ;

Belokopytov, Y ;

Belous, K ;

Benvenuti, AC ;

Berggren, M ;

Bertrand, D ;

Bianchi, F ;

Bigi, M ;

Bilenky, MS ;

Billoir, P ;

Bloch, D ;

Blume, M ;

Blyth, S ;

Bocci, V .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1996, 69 (04) :575-583

[6] Upsilon production in Z decays [J].

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 .

PHYSICS LETTERS B, 1997, 413 (1-2) :167-175

[7] Inclusive J, Psi' and Chi(c) production in hadronic Z decays [J].

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 .

PHYSICS LETTERS B, 1997, 407 (3-4) :351-360

[8] 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

[9] Negative binomial parameters and the two-mechanism model [J].

Golyak, I ;

Galayda, S .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1996, 70 (02) :227-231

[10] Prompt J/psi production in hadronic Z(0) decays [J].

Alexander, G ;

Allison, J ;

Altekamp, N ;

Ametewee, K ;

Anderson, KJ ;

Anderson, S ;

Arcelli, S ;

Asai, S ;

Axen, D ;

Azuelos, G ;

Ball, AH ;

Barberio, E ;

Barlow, RJ ;

Bartoldus, R ;

Batley, JR ;

Beaudoin, G ;

Bechtluft, J ;

Beeston, C ;

Behnke, T ;

Bell, AN ;

Bell, KW ;

Bella, G ;

Bentvelsen, S ;

Berlich, P ;

Bethke, S ;

Biebel, O ;

Blobel, V ;

Bloodworth, IJ ;

Bloomer, JE ;

Bock, P ;

Bosch, HM ;

Boutemeur, M ;

Bouwens, BT ;

Braibant, S ;

Brown, RM ;

Burckhart, HJ ;

Burgard, C ;

Burgin, R ;

Capiluppi, P ;

Carnegie, RK ;

Carter, AA ;

Carter, JR ;

Chang, CY ;

Charlesworth, C ;

Charlton, DG ;

Chrisman, D ;

Chu, SL ;

Clarke, PEL ;

Cohen, I ;

Conboy, JE .

PHYSICS LETTERS B, 1996, 384 (1-4) :343-352

← 1 2 3 4 →