Exclusion of exotic top-like quarks with-4/3 electric charge using jet-charge tagging in single-lepton t(t)over-bar events at CDF

被引：15

作者：

Aaltonen, T. ^{[23
,24
]}

Amerio, S. ^{[52
]}

Amidei, D. ^{[44
]}

Anastassov, A. ^{[17
]}

Annovi, A. ^{[19
]}

Antos, J. ^{[13
,14
]}

Apollinari, G. ^{[17
]}

Appel, J. A. ^{[17
]}

Arisawa, T. ^{[74
]}

Artikov, A. ^{[15
]}

Asaadi, J. ^{[67
]}

Ashmanskas, W. ^{[17
]}

Auerbach, B. ^{[2
]}

Aurisano, A. ^{[67
]}

Azfar, F. ^{[51
]}

Badgett, W. ^{[17
]}

Bae, T. ^{[28
,29
,30
,31
,32
,33
,34
]}

Barbaro-Galtieri, A. ^{[35
]}

Barnes, V. E. ^{[62
]}

Barnett, B. A. ^{[26
]}

Barria, P. ^{[55
,57
]}

Bartos, P. ^{[13
,14
]}

Bauce, M. ^{[52
,53
]}

Bedeschi, F. ^{[55
]}

Behari, S. ^{[17
]}

Bellettini, G. ^{[55
,56
]}

Bellinger, J. ^{[76
]}

Benjamin, D. ^{[16
]}

Beretvas, A. ^{[17
]}

Bhatti, A. ^{[64
]}

Bland, K. R. ^{[5
]}

Blumenfeld, B. ^{[26
]}

Bocci, A. ^{[16
]}

Bodek, A. ^{[63
]}

Boisvert, V. ^{[63
]}

Bortoletto, D. ^{[62
]}

Boudreau, J. ^{[61
]}

Boveia, A. ^{[12
]}

Brigliadori, L. ^{[6
,7
]}

Bromberg, C. ^{[45
]}

Brucken, E. ^{[23
,24
]}

Budagov, J. ^{[15
]}

Budd, H. S. ^{[63
]}

Burkett, K. ^{[17
]}

Busetto, G. ^{[52
,53
]}

Bussey, P. ^{[21
]}

Butti, P. ^{[55
,56
]}

Buzatu, A. ^{[21
]}

Calamba, A. ^{[11
]}

Camarda, S. ^{[4
]}

机构：

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

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

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

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

[5] Baylor Univ, Waco, TX 76798 USA

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

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

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

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

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

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

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

[13] Comenius Univ, Bratislava 84248, Slovakia

[14] Inst Expt Phys, Kosice 04001, Slovakia

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

[16] Duke Univ, Durham, NC 27708 USA

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

[18] Univ Florida, Gainesville, FL 32611 USA

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

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

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

[22] Harvard Univ, Cambridge, MA 02138 USA

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

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

[25] Univ Illinois, Urbana, IL 61801 USA

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

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

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

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

[30] Sungkyunkwan Univ, Suwon 440746, South Korea

[31] Korea Inst Sci & Technol Informat, Taejon 305806, South Korea

[32] Chonnam Natl Univ, Kwangju 500757, South Korea

[33] Chonbuk Natl Univ, Jeonju 561756, South Korea

[34] Ewha Womans Univ, Seoul 120750, South Korea

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

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

[37] UCL, London WC1E 6BT, England

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

[39] MIT, Cambridge, MA 02139 USA

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

[41] Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada

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

[43] TRIUMF, Vancouver, BC V6T 2A3, Canada

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

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

[46] ITEP, Moscow 117259, Russia

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

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

[49] Okayama Univ, Okayama 7008530, Japan

[50] Osaka City Univ, Osaka 588, Japan

来源：

PHYSICAL REVIEW D | 2013年 / 88卷 / 03期

基金：

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

关键词：

COLLIDER DETECTOR; COLLISIONS;

D O I：

10.1103/PhysRevD.88.032003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on a measurement of the top-quark electric charge in t (t) over bar events in which one W boson originating from the top-quark pair decays into leptons and the other into hadrons. The event sample was collected by the CDF II detector in root s = 1.96 TeV proton-antiproton collisions and corresponds to 5.6 fb(-1). We find the data to be consistent with the standard model and exclude the existence of an exotic quark with -4/3 electric charge and mass of the conventional top quark at the 99% confidence level.

引用

页数：13

共 38 条

[31] Global QCD analysis of parton structure of the nucleon: CTEQ5 parton distributions [J].

Lai, HL ;

Huston, J ;

Kuhlmann, S ;

Morfin, J ;

Olness, F ;

Owens, JF ;

Pumplin, J ;

Tung, WK .

EUROPEAN PHYSICAL JOURNAL C, 2000, 12 (03) :375-392

[32] ALPGEN, a generator for hard multiparton processes in hadronic collisions [J].

Mangano, ML ;

Piccinini, F ;

Polosa, AD ;

Moretti, M ;

Pittau, R .

JOURNAL OF HIGH ENERGY PHYSICS, 2003, (07) :1-39

[33] Parton distributions and the LHC:: W and Z production [J].

Martin, AD ;

Roberts, RG ;

Stirling, WJ ;

Thorne, RS .

EUROPEAN PHYSICAL JOURNAL C, 2000, 14 (01) :133-145

[34] New generation of parton distributions with uncertainties from global QCD analysis [J].

Pumplin, J ;

Stump, DR ;

Huston, J ;

Lai, HL ;

Nadolsky, P ;

Tung, WK .

JOURNAL OF HIGH ENERGY PHYSICS, 2002, (07) :325-371

[35] CDF run II silicon tracking projects [J].

Sill, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2000, 447 (1-2) :1-8

[36] High-energy-physics event generation with PYTHIA 6.1 [J].

Sjöstrand, T ;

Edén, P ;

Friberg, C ;

Lönnblad, L ;

Miu, G ;

Mrenna, S ;

Norrbin, E .

COMPUTER PHYSICS COMMUNICATIONS, 2001, 135 (02) :238-259

[37]

Unalan Z. G., 2007, THESIS MICHIGAN STAT

[38]

Unalan Z. G., THESIS FERMILAB

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