Measurement of the b quark forward-backward asymmetry around the Z0 peak using an inclusive tag

被引：16

作者：

Abbiendi, G ^{[1
]}

Ainsley, C

Åkesson, PF

Alexander, G

Allison, J

Amaral, P

Anagnostou, G

Anderson, KJ

Arcelli, S

Asai, S

Axen, D

Azuelos, G

Bailey, I

Barberio, E

Barlow, RJ

Batley, RJ

Bechtle, P

Behnke, T

Bell, KW

Bell, PJ

Bella, G

Bellerive, A

Benelli, G

Bethke, S

Biebel, O

Bloodworth, IJ

Boeriu, O

Bock, P

Bonacorsi, D

Boutemeur, M

Braibant, S

Brigliadori, L

Brown, RM

Buesser, K

Burckhart, HJ

Campana, S

Carnegie, RK

Caron, B

Carter, AA

Carter, JR

Chang, CY

Charlton, DG

Csilling, A

Cuffiani, M

Dado, S

Dallavalle, GM

Dallison, S

De Roeck, A

De Wolf, EA

Desch, K

机构：

[1] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

[2] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy

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

[4] Univ Bonn, Inst Phys, D-53115 Bonn, Germany

[5] Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA

[6] Cavendish Lab, Cambridge CB3 0HE, England

[7] Carleton Univ, Dept Phys, Ottawa Carleton Inst Phys, Ottawa, ON K1S 5B6, Canada

[8] CERN, European Org Nucl Res, CH-1211 Geneva 23, Switzerland

[9] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[10] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

[11] Univ Freiburg, Fak Phys, D-7800 Freiburg, Germany

[12] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany

[13] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA

[14] Queen Mary Univ London, London E1 4NS, England

[15] Tech Hsch Aachen, Inst Phys 3, D-52056 Aachen, Germany

[16] UCL, London WC1E 6BT, England

[17] Univ Manchester, Dept Phys, Schuster Lab, Manchester M13 9PL, Lancs, England

[18] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[19] Univ Montreal, Phys Nucl Lab, Montreal, PQ H3C 3J7, Canada

[20] Univ Oregon, Dept Phys, Eugene, OR 97403 USA

[21] Rutherford Appleton Lab, CLRC, Didcot OX11 0QX, Oxon, England

[22] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel

[23] Tel Aviv Univ, Dept Phys & Astron, IL-69978 Tel Aviv, Israel

[24] Univ Tokyo, Int Ctr Elementary Particle Phys, Tokyo 1130033, Japan

[25] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[26] Kobe Univ, Kobe, Hyogo 6578501, Japan

[27] Weizmann Inst Sci, Particle Phys Dept, IL-76100 Rehovot, Israel

[28] Univ Hamburg, DESY, Inst Phys Expt, D-22607 Hamburg, Germany

[29] Univ Victoria, Dept Phys, Victoria, BC V8W 3P6, Canada

[30] Univ British Columbia, Dept Phys, Vancouver, BC V6T 1Z1, Canada

[31] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada

[32] Res Inst Particle & Nucl Phys, H-1525 Budapest, Hungary

[33] Inst Nucl Res, H-4001 Debrecen, Hungary

[34] Univ Munich, Sekt Phys, D-85748 Garching, Germany

[35] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[36] Yale Univ, Dept Phys, New Haven, CT 06520 USA

来源：

PHYSICS LETTERS B | 2002年 / 546卷 / 1-2期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会; 日本学术振兴会; 以色列科学基金会;

关键词：

D O I：

10.1016/S0370-2693(02)02594-7

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The b quark forward-backward asymmetry has been measured using hadronic Z(0) decays collected by the OPAL experiment at LEP. Z(0) --> b (b) over bar decays were selected using a combination of secondary vertex and lepton tags, and the sign of the b quark charge was determined using an inclusive tag based on jet, vertex and kaon charges. The results, corrected to the quark level, are: A(FB)(b)=0.0582 +/- 0.0153 +/- 0.0012 at, roots = 89.50GeV, A(FB)(b)=0.0977 +/- 0.0036 +/- 0.0018 at roots=91.26GeV, A(FB)(b)=0.1221 +/- 0.0123 +/- 0.0025 at roots=92.91GeV, where the first error is statistical and the second systematic in each case. Within the framework of the Standard Model, the result is interpreted as a measurement of the effective weak mixing angle for electrons of sin(2) theta(W)(eff.e) = 0.32305 +/- 0.00068 (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：29 / 47

页数：19

共 54 条

[1]

Abbaneo D, 1998, EUR PHYS J C, V4, P185

[2]

Abbiendi G, 2000, EUR PHYS J C, V12, P609, DOI 10.1007/s100520000322

[3] Measurement of the B0 lifetime and oscillation frequency using (B)over-bar0→D*+l-(ν)over-bar decays [J].

Abbiendi, G ;

Ackerstaff, K ;

Ainsley, C ;

Åkesson, PF ;

Alexander, G ;

Allison, J ;

Anderson, KJ ;

Arcelli, S ;

Asai, S ;

Ashby, SF ;

Axen, D ;

Azuelos, G ;

Bailey, I ;

Ball, AH ;

Barberio, E ;

Barlow, RJ ;

Baumann, S ;

Behnke, T ;

Bell, KW ;

Bella, G ;

Bellerive, A ;

Benelli, G ;

Bentvelsen, S ;

Bethke, S ;

Biebel, O ;

Bloodworth, IJ ;

Boeriu, O ;

Bock, P ;

Böhme, J ;

Bonacorsi, D ;

Boutemeur, M ;

Braibant, S ;

Bright-Thomas, P ;

Brigliadori, L ;

Brown, RM ;

Burckhart, HJ ;

Cammin, J ;

Capiluppi, P ;

Carnegie, RK ;

Carter, AA ;

Carter, JR ;

Chang, CY ;

Charlton, DG ;

Clarke, PEL ;

Clay, E ;

Cohen, I ;

Cooke, OC ;

Couchman, J ;

Couyoumtzelis, C ;

Coxe, RL .

PHYSICS LETTERS B, 2000, 493 (3-4) :266-280

[4] A measurement of Rb using a double tagging method [J].

Abbiendi, G ;

Ackerstaff, K ;

Alexander, G ;

Allison, J ;

Altekamp, N ;

Anderson, KJ ;

Anderson, S ;

Arcelli, S ;

Asai, S ;

Ashby, SF ;

Axen, D ;

Azuelos, G ;

Ball, AH ;

Barberio, E ;

Barlow, RJ ;

Bartoldus, R ;

Batley, JR ;

Baumann, S ;

Bechtluft, J ;

Behnke, T ;

Bell, KW ;

Bella, G ;

Bellerive, A ;

Bentvelsen, S ;

Bethke, S ;

Betts, S ;

Biebel, O ;

Biguzzi, A ;

Bird, SD ;

Blobel, V ;

Bloodworth, IJ ;

Bobinski, M ;

Bock, P ;

Böhme, J ;

Bonacorsi, D ;

Boutemeur, M ;

Braibant, S ;

Bright-Thomas, P ;

Brigliadori, L ;

Brown, RM ;

Burckhart, HJ ;

Burgard, C ;

Bürgin, R ;

Capiluppi, P ;

Carnegie, RK ;

Carter, AA ;

Carter, JR ;

Chang, CY ;

Charlton, DG ;

Chrisman, D .

EUROPEAN PHYSICAL JOURNAL C, 1999, 8 (02) :217-239

[5] Measurement of the forward backward asymmetry of c and b quarks at the Z pole using reconstructed D mesons [J].

Abreu, P ;

Adye, T ;

Adzic, P ;

Albrecht, Z ;

Alderweireld, T ;

Alekseev, GD ;

Alemany, R ;

Allmendinger, T ;

Allport, PP ;

Almehed, S ;

Amaldi, U ;

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 ;

Beilliere, P ;

Belokopytov, Y ;

Belous, K ;

Benvenuti, AC ;

Berat, C ;

Berggren, M ;

Bertini, D ;

Bertrand, D ;

Besancon, M ;

Bianchi, F ;

Bigi, M ;

Bilenky, MS ;

Bizouard, MA ;

Bloch, D ;

Blom, HM ;

Bonesini, M .

EUROPEAN PHYSICAL JOURNAL C, 1999, 10 (02) :219-237

[6] Measurement of AFBb(b)over-bar in hadronic Z decays using a jet charge technique [J].

Abreu, P ;

Adam, W ;

Adye, T ;

Adzic, P ;

Albrecht, Z ;

Aldeweireld, T ;

Alekseev, GD ;

Alemany, R ;

Allmendinger, T ;

Allport, PP ;

Almehed, S ;

Amaldi, U ;

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 ;

Beilliere, P ;

Belokopytov, Y ;

Belous, K ;

Benvenuti, AC ;

Berat, C ;

Berggren, M ;

Bertini, D ;

Bertrand, D ;

Besancon, M ;

Bianchi, F ;

Bigi, M ;

Bilenky, MS ;

Bizouard, MA ;

Bloch, D ;

Blom, HM .

EUROPEAN PHYSICAL JOURNAL C, 1999, 9 (03) :367-381

[7]

Abreu P, 2000, EUR PHYS J C, V12, P225, DOI 10.1007/s1005299000228

[8]

Abreu P, 2000, EUR PHYS J C, V12, P209, DOI 10.1007/s100529900227

[9]

ABREU P, 1995, Z PHYS C PART FIELDS, V65, P569

[10] Measurement of the e+e-→Z→b(b)over-bar forward-backward asymmetry and the B0(B)over-bar0 mixing parameter using prompt leptons [J].

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 ;

Bilei, GM ;

Blaising, JJ ;

Blyth, SC ;

Bobbink, GJ ;

Bock, R ;

Böhm, A ;

Boldizsar, L ;

Borgia, B ;

Bourilkov, D .

PHYSICS LETTERS B, 1999, 448 (1-2) :152-162

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