Measurement of B(t→Wb)/B(t→Wq) at the Collider Detector at Fermilab -: art. no. 102002

被引：33

作者：

Acosta, D ^{[1
]}

Adelman, J

Affolder, T

Akimoto, T

Albrow, MG

Ambrose, D

Amerio, S

Amidei, D

Anastassov, A

Anikeev, K

Annovi, A

Antos, J

Aoki, M

Apollinari, G

Arisawa, T

Arguin, JF

Artikov, A

Ashmanskas, W

Attal, A

Azfar, F

Azzi-Bacchetta, P

Bacchetta, N

Bachacou, H

Badgett, W

Barbaro-Galtieri, A

Barker, GJ

Barnes, VE

Barnett, BA

Baroiant, S

Bauer, G

Bedeschi, F

Behari, S

Belforte, S

Bellettini, G

Bellinger, J

Belloni, A

Ben-Haim, E

Benjamin, D

Beretvas, A

Berry, T

Bhatti, A

Binkley, M

Bisello, D

Bishai, M

Blair, RE

Blocker, C

Bloom, K

Blumenfeld, B

Bocci, A

Bodek, A

机构：

[1] Univ Florida, Gainesville, FL 32611 USA

[2] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[3] Argonne Natl Lab, Argonne, IL 60439 USA

[4] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[5] Univ Bologna, Ist Nazl Fis Nucl, I-40127 Bologna, Italy

[6] Brandeis Univ, Waltham, MA 02254 USA

[7] Univ Calif Davis, Davis, CA 95616 USA

[8] Univ Calif Los Angeles, Los Angeles, CA 90024 USA

[9] Univ Calif San Diego, La Jolla, CA 92093 USA

[10] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA

[11] Univ Cantabria, CSIC, Inst Fis Cantabria, E-39005 Santander, Spain

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

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

[14] Joint Inst Nucl Res, RU-141980 Dubna, Russia

[15] Duke Univ, Durham, NC 27708 USA

[16] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[17] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy

[18] Univ Geneva, CH-1211 Geneva, Switzerland

[19] Univ Glasgow, Glasgow G12 8QQ, Lanark, Scotland

[20] Harvard Univ, Cambridge, MA 02138 USA

[21] Univ Helsinki, Dept Phys, Div High Energy Phys, FIN-00014 Helsinki, Finland

[22] Helsinki Inst Phys, FIN-00014 Helsinki, Finland

[23] Hiroshima Univ, Higashihiroshima 724, Japan

[24] Univ Illinois, Urbana, IL 61801 USA

[25] Johns Hopkins Univ, Baltimore, MD 21218 USA

[26] Univ Karlsruhe, Inst Expt Kernphys, D-76128 Karlsruhe, Germany

[27] High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki 305, Japan

[28] Seoul Natl Univ, Seoul 151742, South Korea

[29] Kyungpook Natl Univ, Ctr High Energy Phys, Taegu 702701, South Korea

[30] Sungkyunkwan Univ, Suwon 440746, South Korea

[31] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[32] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England

[33] UCL, London WC1E 6BT, England

[34] MIT, Cambridge, MA 02139 USA

[35] McGill Univ, Inst Particle Phys, Montreal, PQ H3A 2T8, Canada

[36] Univ Toronto, Toronto, ON M5S 1A7, Canada

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

[38] Michigan State Univ, E Lansing, MI 48824 USA

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

[40] Univ New Mexico, Albuquerque, NM 87131 USA

[41] Northwestern Univ, Evanston, IL 60208 USA

[42] Ohio State Univ, Columbus, OH 43210 USA

[43] Okayama Univ, Okayama 7008530, Japan

[44] Osaka City Univ, Osaka 588, Japan

[45] Univ Oxford, Oxford OX1 3RH, England

[46] Univ Padua, Ist Nazl Fis Nucl, Sez Padova Trento, I-35131 Padua, Italy

[47] Univ Penn, Philadelphia, PA 19104 USA

[48] Univ Siena, I-53100 Siena, Italy

[49] Scuola Normale Super Pisa, I-53100 Siena, Italy

[50] Univ Pisa, Ist Nazl Fis Nucl Pisa, I-56100 Pisa, Italy

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.95.102002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a measurement of the ratio of top-quark branching fractions R=B(t -> Wb)/B(t -> Wq), where q can be a b, s, or a d quark, using lepton-plus-jets and dilepton data sets with an integrated luminosity of similar to 162 pb(-1) collected with the Collider Detector at Fermilab during Run II of the Tevatron. The measurement is derived from the relative numbers of t (t) over bar events with different multiplicity of identified secondary vertices. We set a lower limit of R > 0.61 at 95% confidence level.

引用

页数：7

共 15 条

[1] Measurement of the J/ψ meson and b-hadron production cross sections in p(p)over-bar collisions at √s=1960 GeV -: art. no. 032001 [J].

Acosta, D ;

Adelman, J ;

Affolder, T ;

Akimoto, T ;

Albrow, MG ;

Ambrose, D ;

Amerio, S ;

Amidei, D ;

Anastassov, A ;

Anikeev, K ;

Annovi, A ;

Antos, J ;

Aoki, M ;

Apollinari, G ;

Arisawa, T ;

Arguin, JF ;

Artikov, A ;

Ashmanskas, W ;

Attal, A ;

Azfar, F ;

Azzi-Bacchetta, P ;

Bacchetta, N ;

Bachacou, H ;

Badgett, W ;

Barbaro-Galtieri, A ;

Barker, GJ ;

Barnes, VE ;

Barnett, BA ;

Baroiant, S ;

Barone, M ;

Bauer, G ;

Bedeschi, F ;

Behari, S ;

Belforte, S ;

Bellettini, G ;

Bellinger, J ;

Ben-Haim, E ;

Benjamin, D ;

Beretvas, A ;

Bhatti, A ;

Binkley, M ;

Bisello, D ;

Bishai, M ;

Blair, RE ;

Blocker, C ;

Bloom, K ;

Blumenfeld, B ;

Bocci, A ;

Bodek, A ;

Bolla, G .

PHYSICAL REVIEW D, 2005, 71 (03) :032001-1

[2] Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at √s=1.96 TeV using lepton plus jets events with secondary vertex b-tagging -: art. no. 052003 [J].

Acosta, D ;

Adelman, J ;

Affolder, T ;

Akimoto, T ;

Albrow, MG ;

Ambrose, D ;

Amerio, S ;

Amidei, D ;

Anastassov, A ;

Anikeev, K ;

Annovi, A ;

Antos, J ;

Aoki, M ;

Apollinari, G ;

Arisawa, T ;

Arguin, JF ;

Artikov, A ;

Ashmanskas, W ;

Attal, A ;

Azfar, F ;

Azzi-Bacchetta, P ;

Bacchetta, N ;

Bachacou, H ;

Badgett, W ;

Barbaro-Galtieri, A ;

Barker, GJ ;

Barnes, VE ;

Barnett, BA ;

Baroiant, S ;

Barone, M ;

Bauer, G ;

Bedeschi, F ;

Behari, S ;

Belforte, S ;

Bellettini, G ;

Bellinger, J ;

Ben-Haim, E ;

Benjamin, D ;

Beretvas, A ;

Bhatti, A ;

Binkley, M ;

Bisello, D ;

Bishai, M ;

Blair, RE ;

Blocker, C ;

Bloom, K ;

Blumenfeld, B ;

Bocci, A ;

Bodek, A ;

Bolla, G .

PHYSICAL REVIEW D, 2005, 71 (05) :1-28

[3] Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at √s=1.96 TeV using dilepton events -: art. no. 142001 [J].

Acosta, D ;

Affolder, T ;

Akimoto, T ;

Albrow, MG ;

Ambrose, D ;

Amerio, S ;

Amidei, D ;

Anastassov, A ;

Anikeev, K ;

Annovi, A ;

Antos, J ;

Aoki, M ;

Apollinari, G ;

Arisawa, T ;

Arguin, JF ;

Artikov, A ;

Ashmanskas, W ;

Attal, A ;

Azfar, F ;

Azzi-Bacchetta, P ;

Bacchetta, N ;

Bachacou, H ;

Badgett, W ;

Barbaro-Galtieri, A ;

Barker, GJ ;

Barnes, VE ;

Barnett, BA ;

Baroiant, S ;

Barone, M ;

Bauer, G ;

Bedeschi, F ;

Behari, S ;

Belforte, S ;

Bellettini, G ;

Bellinger, J ;

Benjamin, D ;

Beretvas, A ;

Bhatti, A ;

Binkley, M ;

Bisello, D ;

Bishai, M ;

Blair, RE ;

Blocker, C ;

Bloom, K ;

Blumenfeld, B ;

Bocci, A ;

Bodek, A ;

Bolla, G ;

Bolshov, A ;

Booth, PSL .

PHYSICAL REVIEW LETTERS, 2004, 93 (14) :142001-1

[4]

ACOSTA D, HEPEX0504053 CDF COL

[5] First measurement of the ratio B(t → Wb)/B(t → Wq) and associated limit on the Cabibbo-Kobayashi-Maskawa element |Vtb| [J].

Affolder, T ;

Akimoto, H ;

Akopian, A ;

Albrow, MG ;

Amaral, P ;

Amendolia, SR ;

Amidei, D ;

Anikeev, K ;

Antos, J ;

Apollinari, G ;

Arisawa, T ;

Asakawa, T ;

Ashmanskas, W ;

Azfar, F ;

Azzi-Bacchetta, P ;

Bacchetta, N ;

Bailey, MW ;

Bailey, S ;

de Barbaro, P ;

Barbaro-Galtieri, A ;

Barnes, VE ;

Barnett, BA ;

Baroiant, S ;

Barone, M ;

Bauer, G ;

Bedeschi, F ;

Belforte, S ;

Bell, WH ;

Bellettini, G ;

Bellinger, J ;

Benjamin, D ;

Bensinger, J ;

Beretvas, A ;

Berge, JP ;

Berryhill, J ;

Bevensee, B ;

Bhatti, A ;

Binkley, M ;

Bisello, D ;

Bishai, M ;

Blair, RE ;

Blocker, C ;

Bloom, K ;

Blumenfeld, B ;

Blusk, SR ;

Bocci, A ;

Bodek, A ;

Bokhari, W ;

Bolla, G ;

Bonushkin, Y .

PHYSICAL REVIEW LETTERS, 2001, 86 (15) :3233-3238

[6]

Brun R., 1993, W5013 CERN PROGR LIB

[7] UNITARY SYMMETRY AND LEPTONIC DECAYS [J].

CABIBBO, N .

PHYSICAL REVIEW LETTERS, 1963, 10 (12) :531-&

[8] HERWIG 6: an event generator for hadron emission reactions with interfering gluons (including supersymmetric processes) [J].

Corcella, G ;

Knowles, IG ;

Marchesini, G ;

Moretti, S ;

Odagiri, K ;

Richardson, P ;

Seymour, MH ;

Webber, BR .

JOURNAL OF HIGH ENERGY PHYSICS, 2001, (01) :XX-93

[9] Review of particle physics [J].

Eidelman, S ;

Hayes, KG ;

Olive, KA ;

Aguilar-Benitez, M ;

Amsler, C ;

Asner, D ;

Babu, KS ;

Barnett, RM ;

Beringer, J ;

Burchat, PR ;

Carone, CD ;

Caso, C ;

Conforto, G ;

Dahl, O ;

D'Ambrosio, G ;

Doser, M ;

Feng, JL ;

Gherghetta, T ;

Gibbons, L ;

Goodman, M ;

Grab, C ;

Groom, DE ;

Gurtu, A ;

Hagiwara, K ;

Hernández-Rey, JJ ;

Hikasa, K ;

Honscheid, K ;

Jawahery, H ;

Kolda, C ;

Kwon, Y ;

Mangano, ML ;

Manohar, AV ;

March-Russell, J ;

Masoni, A ;

Miquel, R ;

Mönig, K ;

Murayama, H ;

Nakamura, K ;

Navas, S ;

Pape, L ;

Patrignani, C ;

Piepke, A ;

Raffelt, G ;

Roos, M ;

Tanabashi, M ;

Terning, J ;

Törnqvist, NA ;

Trippe, TG ;

Vogel, P ;

Wohl, CG .

PHYSICS LETTERS B, 2004, 592 (1-4) :1-1109

[10] Unified approach to the classical statistical analysis of small signals [J].

Feldman, GJ ;

Cousins, RD .

PHYSICAL REVIEW D, 1998, 57 (07) :3873-3889

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