B-ASTERISK PRODUCTION IN Z-DECAYS AT LEP

被引：35

作者：

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

BARILLERE, R

BARONE, L

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

BIZZARRI, R

BLAISING, JJ

BOBBINK, GJ

BOCK, R

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] NIKHEF H, 1009 DB AMSTERDAM, NETHERLANDS

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

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

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

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

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

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

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

[11] NORTHEASTERN UNIV, BOSTON, MA 02215 USA

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

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

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

[15] HARVARD UNIV, CAMBRIDGE, MA 02139 USA

[16] MIT, CAMBRIDGE, MA 02139 USA

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

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

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

[20] WORLD LAB, FBLIA PROJECT, CH-1211 GENEVA 23, SWITZERLAND

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

[22] UNIV SCI & TECHNOL CHINA, HEFEI 230029, PEOPLES R CHINA

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

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

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

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

[27] CIEMAT, E-28040 MADRID, SPAIN

[28] INST THEORET & EXPTL PHYS, MOSCOW 117259, RUSSIA

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

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

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

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

[33] NATL INST NUCL PHYS & HIGH ENERGY PHYS, 6525 ED NIJMEGEN, NETHERLANDS

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

[35] CALTECH, PASADENA, CA 91125 USA

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

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

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

[39] PRINCETON UNIV, PRINCETON, NJ 08544 USA

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

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

[42] ST PETERSBURG NUCL PHYS INST, ST PETERSBURG, RUSSIA

[43] UNIV CALIF SAN DIEGO, SAN DIEGO, CA 92093 USA

[44] UNIV SANTIAGO, DEPT FIS PARTICULAS ELEMENTALES, E-15706 SANTIAGO, SPAIN

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

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

[47] UNIV ALABAMA, TUSCALOOSA, AL 35486 USA

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

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

[50] DESY, INST HOCHENERGIEPHYS, D-15738 ZUETHEN, GERMANY

来源：

PHYSICS LETTERS B | 1995年 / 345卷 / 04期

基金：

匈牙利科学研究基金会;

关键词：

D O I：

10.1016/0370-2693(95)01611-S

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The production of B* mesons in Z decays has been measured at LEP with the L3 detector. A sample of Z --> b ($) over bar b events was obtained by tagging muons in 1.6 million hadronic Z decays collected in 1991, 1992 and 1993. A signal with a peak value of E(y) = 46.3+/-1.9 (stat) MeV in the B rest frame energy spectrum was interpreted to come from the decay B* --> gamma B. The inclusive production ratio of B* mesons relative to B mesons was determined from a fit to the spectrum to be N-B*/(N-B* + N-B) = 0.76+/-0.08+/-0.06, where the first error is statistical and the second is systematic.

引用

页码：589 / 597

页数：9

共 50 条

[21] Production of heavy quarks in Z(0) decays at LEP
Lafoux, H
NUCLEAR PHYSICS B, 1996, : 115 - 118
[22] Λb polarization in Z0 decays at LEP
Abreu, P
Adam, W
Adye, T
Adzic, P
Ajinenko, I
Albrecht, Z
Alderweireld, T
Alekseev, GD
Alemany, R
Allmendinger, T
Allport, PP
Almehed, S
Amaldi, U
Amapane, N
Amato, S
Anassontzis, EG
Andersson, P
Andreazza, A
Andringa, S
Antilogus, P
Apel, WD
Arnoud, Y
Åsman, B
Augustin, JE
Augustinus, A
Baillon, P
Bambade, P
Barao, F
Barbiellini, G
Barbier, R
Bardin, DY
Barker, G
Baroncelli, A
Battaglia, M
Baubillier, M
Becks, KH
Begalli, M
Behrmann, A
Beilliere, P
Belokopytov, Y
Benekos, NC
Benvenuti, AC
Berat, C
Berggren, M
Bertini, D
Bertrand, D
Besancon, M
Bigi, M
Bilenky, MS
Bizouard, MA
PHYSICS LETTERS B, 2000, 474 (1-2) : 205 - 222
[23] LIFETIME AND PRODUCTION-RATE OF BEAUTY BARYONS FROM Z-DECAYS
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, JE
AUGUSTINUS, A
BAILLON, P
BAMBADE, P
BARAO, F
BARATE, R
BARBIELLINI, G
BARDIN, DY
BARKER, GJ
BARONCELLI, A
BARING, O
BARRIO, JA
BARTL, W
BATES, MJ
BATTAGLIA, M
BAUBILLIER, M
BAUDOT, J
BECKS, KH
BEGALLI, M
BEILLIERE, P
BELOKOPYTOV, Y
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, 1995, 68 (03): : 375 - 390
[24] B hadron production and inclusive b decays at LEP
Chaussard, L
INTERNATIONAL EUROPHYSICS CONFERENCE ON HIGH ENERGY PHYSICS, 1999, : 563 - 566
[25] SEARCH FOR EXCITED TAUS FROM Z-DECAYS
ADEVA, B
PHYSICS LETTERS B, 1990, 250 (1-2) : 205 - 211
[26] SEARCH FOR LEPTON FLAVOR VIOLATION IN Z-DECAYS
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, 316 (2-3) : 427 - 434
[27] ADDITIONAL CP ODD OBSERVABLES IN Z-DECAYS
VALENCIA, G
SONI, A
PHYSICS LETTERS B, 1991, 263 (3-4) : 517 - 522
[28] EVIDENCE FOR GLUON INTERFERENCE IN HADRONIC Z-DECAYS
ACCIARRI, M
ADAM, A
ADRIANI, O
AGUILARBENITEZ, M
AHLEN, S
ALPAT, B
ALCARAZ, J
ALLABY, J
ALOISIO, A
ALVERSON, G
ALVIGGI, MG
AMBROSI, G
AN, Q
ANDERHUB, H
ANDREEV, VP
ANGELESCU, T
ANTREASYAN, D
AREFIEV, A
AZEMOON, T
AZIZ, T
BABA, PVKS
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
BIZZARRI, R
BLAISING, JJ
BOBBINK, GJ
BOCK, R
BOHM, A
BORGIA, B
PHYSICS LETTERS B, 1995, 353 (01) : 145 - 154
[29] W mass and Leptonic Z-decays in the NMSSM
Domingo, Florian
Lenz, Teresa
JOURNAL OF HIGH ENERGY PHYSICS, 2011, (07):
[30] GLUON COHERENCE AND STRING EFFECT IN Z-DECAYS
SYED, AA
NUCLEAR PHYSICS B, 1995, : 157 - 160

← 1 2 3 4 5 →