Measurement of the Ratio σt(t)over-bar/σZ/γ*→ll and Precise Extraction of the t(t)over-bar Cross Section

被引：57

作者：

Aaltonen, T. ^{[25
,26
]}

Adelman, J. ^{[14
]}

Alvarez Gonzalez, B. ^{[12
]}

Amerio, S. ^{[46
,47
]}

Amidei, D. ^{[37
]}

Anastassov, A. ^{[41
]}

Annovi, A. ^{[21
]}

Antos, J. ^{[15
,16
]}

Apollinari, G. ^{[19
]}

Apresyan, A. ^{[55
]}

Arisawa, T. ^{[66
]}

Artikov, A. ^{[17
]}

Asaadi, J. ^{[61
]}

Ashmanskas, W. ^{[19
]}

Attal, A. ^{[3
]}

Aurisano, A. ^{[61
]}

Azfar, F. ^{[45
]}

Badgett, W. ^{[19
]}

Barbaro-Galtieri, A. ^{[31
]}

Barnes, V. E. ^{[55
]}

Barnett, B. A. ^{[28
]}

Barria, P. ^{[50
,52
]}

Bartos, P. ^{[15
,16
]}

Bauer, G. ^{[35
]}

Beauchemin, P. -H. ^{[36
]}

Bedeschi, F. ^{[50
]}

Beecher, D. ^{[33
]}

Behari, S. ^{[28
]}

Bellettini, G. ^{[50
,51
]}

Bellinger, J. ^{[68
]}

Benjamin, D. ^{[18
]}

Beretvas, A. ^{[19
]}

Bhatti, A. ^{[57
]}

Binkley, M. ^{[19
]}

Bisello, D. ^{[46
,47
]}

Bizjak, I. ^{[33
]}

Blair, R. E. ^{[1
]}

Blocker, C. ^{[7
]}

Blumenfeld, B. ^{[28
]}

Bocci, A. ^{[18
]}

Bodek, A. ^{[56
]}

Boisvert, V. ^{[56
]}

Bortoletto, D. ^{[55
]}

Boudreau, J. ^{[54
]}

Boveia, A. ^{[11
]}

Brau, B. ^{[11
]}

Bridgeman, A. ^{[27
]}

Brigliadori, L. ^{[5
,6
]}

Bromberg, C. ^{[38
]}

Brubaker, E. ^{[14
]}

机构：

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

[2] Univ Athens, GR-15771 Athens, Greece

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

[4] Baylor Univ, Waco, TX 76798 USA

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

[6] Univ Bologna, I-40127 Bologna, Italy

[7] Brandeis Univ, Waltham, MA 02254 USA

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

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

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

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

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

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

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

[15] Comenius Univ, Bratislava 84248, Slovakia

[16] Inst Expt Phys, Kosice 04001, Slovakia

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

[18] Duke Univ, Durham, NC 27708 USA

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

[20] Univ Florida, Gainesville, FL 32611 USA

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

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

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

[24] Harvard Univ, Cambridge, MA 02138 USA

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

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

[27] Univ Illinois, Urbana, IL 61801 USA

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

[29] Karlsruhe Inst Technol, Inst Expt Kernphys, D-76131 Karlsruhe, Germany

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

[31] Ernest Orlando Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

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

[33] UCL, London WC1E 6BT, England

[34] Ctr Invest Energet Medioambientales & Tecnol, E-28040 Madrid, Spain

[35] MIT, Cambridge, MA 02139 USA

[36] McGill Univ, Inst Particle Phys, Montreal, PQ H3A 2T8, 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] Ist Nazl Fis Nucl, Sez Padova Trento, I-35131 Padua, Italy

[47] Univ Padua, I-35131 Padua, Italy

[48] Univ Paris 06, LPNHE, IN2P3, CNRS,UMR7585, F-75252 Paris, France

[49] Univ Penn, Philadelphia, PA 19104 USA

[50] Ist Nazl Fis Nucl, I-56127 Pisa, Italy

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 01期

基金：

美国国家科学基金会; 芬兰科学院; 英国科学技术设施理事会; 瑞士国家科学基金会; 俄罗斯基础研究基金会; 加拿大自然科学与工程研究理事会;

关键词：

COLLISIONS;

D O I：

10.1103/PhysRevLett.105.012001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a measurement of the ratio of the t (t) over bar to Z/gamma* production cross sections in root s = 1.96 TeV p (p) over bar collisions using data corresponding to an integrated luminosity of up to 4.6 fb(-1), collected by the CDF II detector. The t (t) over bar cross section ratio is measured using two complementary methods, a b-jet tagging measurement and a topological approach. By multiplying the ratios by the well-known theoretical Z/gamma* -> ll cross section predicted by the standard model, the extracted t (t) over bar cross sections are effectively insensitive to the uncertainty on luminosity. A best linear unbiased estimate is used to combine both measurements with the result sigma(t (t) over bar) = 7.70 +/- 0.52 pb, for a top-quark mass of 172.5 GeV/c(2).

引用

页数：7

共 23 条

[1]

ABACHI S, 2009, PHYS REV D, V80

[2] Measurements of inclusive W and Z cross sections in p(p)over-bar collisions at √s=1.96 TeV [J].

Abulencia, A. ;

Acosta, D. ;

Adelman, J. ;

Affolder, T. ;

Akimoto, T. ;

Albrow, M. G. ;

Ambrose, D. ;

Amerio, S. ;

Amidei, D. ;

Anastassov, A. ;

Anikeev, K. ;

Annovi, A. ;

Antos, J. ;

Aoki, M. ;

Apollinari, G. ;

Arguin, J-F ;

Arisawa, T. ;

Artikov, A. ;

Ashmanskas, W. ;

Attal, A. ;

Azfar, F. ;

Azzi-Bacchetta, P. ;

Azzurri, P. ;

Bacchetta, N. ;

Bachacou, H. ;

Badgett, W. ;

Barbaro-Galtieri, A. ;

Barnes, V. E. ;

Barnett, B. A. ;

Baroiant, S. ;

Bartsch, V. ;

Bauer, G. ;

Bedeschi, F. ;

Behari, S. ;

Belforte, S. ;

Bellettini, G. ;

Bellinger, J. ;

Belloni, A. ;

Ben-Haim, E. ;

Benjamin, D. ;

Beretvas, A. ;

Beringer, J. ;

Berry, T. ;

Bhatti, A. ;

Binkley, M. ;

Bisello, D. ;

Bishai, M. ;

Blair, R. E. ;

Blocker, C. ;

Bloom, K. .

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 2007, 34 (12) :2457-2544

[3] Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at √s=1.96 TeV [J].

Abulencia, A. ;

Acosta, D. ;

Adelman, J. ;

Affolder, T. ;

Akimoto, T. ;

Albrow, M. G. ;

Ambrose, D. ;

Amerio, S. ;

Amidei, D. ;

Anastassov, A. ;

Anikeev, K. ;

Annovi, A. ;

Antos, J. ;

Aoki, M. ;

Apollinari, G. ;

Arguin, J. -F. ;

Arisawa, T. ;

Artikov, A. ;

Ashmanskas, W. ;

Attal, A. ;

Azfar, F. ;

Azzi-Bacchetta, P. ;

Azzurri, P. ;

Bacchetta, N. ;

Bachacou, H. ;

Badgett, W. ;

Barbaro-Galtieri, A. ;

Barnes, V. E. ;

Barnett, B. A. ;

Baroiant, S. ;

Bartsch, V. ;

Bauer, G. ;

Bedeschi, F. ;

Behari, S. ;

Belforte, S. ;

Bellettini, G. ;

Bellinger, J. ;

Belloni, A. ;

Ben Haim, E. ;

Benjamin, D. ;

Beretvas, A. ;

Beringer, J. ;

Berry, T. ;

Bhatti, A. ;

Binkley, M. ;

Bisello, D. ;

Blair, R. E. ;

Blocker, C. ;

Blumenfeld, B. ;

Bocci, A. .

PHYSICAL REVIEW LETTERS, 2006, 97 (08)

[4] Measurement of the cross section for t(t)over-bar production in p(p)over-bar collisions using the kinematics of lepton plus jets events -: 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 ;

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 .

PHYSICAL REVIEW D, 2005, 72 (05)

[5] 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

[6] 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

[7]

Agostinelli S, 2003, Geant4-a simulation toolkit, V506, P250, DOI [DOI 10.1016/S0168-9002(03)01368-8, 10.1016/s0168-9002(03)01368-8, 10.1016/]

[8]

Alwall J., 2007, J HIGH ENERGY PHYS, V028

[9]

BHATTI A, 2006, SECT, V566, P375

[10] STATISTICAL MODEL FOR ELECTRON-POSITRON ANNIHILATION INTO HADRONS [J].

BJORKEN, JD ;

BRODSKY, SJ .

PHYSICAL REVIEW D, 1970, 1 (05) :1416-&

← 1 2 3 →