Search for the supersymmetric partner of the top quark in p(p)over-bar collisions at √s = 1.96 TeV

被引：21

作者：

Aaltonen, T. ^{[1
,25
]}

Alvarez Gonzalez, B. ^{[11
]}

Amerio, S. ^{[53
]}

Amidei, D. ^{[44
]}

Anastassov, A. ^{[48
]}

Annovi, A. ^{[21
]}

Antos, J. ^{[14
,15
]}

Apollinari, G. ^{[19
]}

Appel, J. A. ^{[19
]}

Apresyan, A. ^{[62
]}

Arisawa, T. ^{[73
]}

Artikov, A. ^{[16
]}

Asaadi, J. ^{[68
]}

Ashmanskas, W. ^{[19
]}

Auerbach, B. ^{[76
]}

Aurisano, A. ^{[68
]}

Azfar, F. ^{[52
]}

Badgett, W. ^{[19
]}

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

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

Barnett, B. A. ^{[27
]}

Barria, P. ^{[57
,59
]}

Bartos, P. ^{[14
,15
]}

Bauce, M. ^{[53
,54
]}

Bauer, G. ^{[39
]}

Bedeschi, F. ^{[57
]}

Beecher, D. ^{[37
]}

Behari, S. ^{[27
]}

Bellettini, G. ^{[57
,58
]}

Bellinger, J. ^{[75
]}

Benjamin, D. ^{[18
]}

Beretvas, A. ^{[19
]}

Bhatti, A. ^{[64
]}

Binkley, M. ^{[19
]}

Bisello, D. ^{[53
,54
]}

Bizjak, I. ^{[37
]}

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

Blocker, C. ^{[8
]}

Blumenfeld, B. ^{[27
]}

Bocci, A. ^{[18
]}

Bodek, A. ^{[63
]}

Bortoletto, D. ^{[62
]}

Boudreau, J. ^{[61
]}

Boveia, A. ^{[18
]}

Brau, B. ^{[19
]}

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

Brisuda, A. ^{[14
,15
]}

Bromberg, C. ^{[45
]}

Brucken, E. ^{[1
,25
]}

Bucciantonio, M. ^{[57
,58
]}

机构：

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

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

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

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

[5] Baylor Univ, Waco, TX 76798 USA

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

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

[8] Brandeis Univ, Waltham, MA 02254 USA

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

[10] Univ Calif Los Angeles, Los Angeles, CA 90024 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] Comenius Univ, Bratislava 84248, Slovakia

[15] Inst Expt Phys, Kosice 04001, Slovakia

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

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

[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, Switzerland

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

[24] Harvard Univ, Cambridge, MA 02138 USA

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

[26] Univ Illinois, Urbana, IL 61801 USA

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

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

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

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

[31] Sungkyunkwan Univ, Suwon 440746, South Korea

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

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

[34] Chonbuk Natl Univ, Jeonju 561756, 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] CIEMAT, 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] Inst Theoret & Expt Phys, Moscow 117259, Russia

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

[48] Northwestern Univ, Evanston, IL 60208 USA

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

[50] Okayama Univ, Okayama 7008530, Japan

来源：

PHYSICAL REVIEW D | 2010年 / 82卷 / 09期

基金：

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

关键词：

SCALAR TOP; 2; LEPTONS; EVENTS;

D O I：

10.1103/PhysRevD.82.092001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a search for the lightest supersymmetric partner of the top quark in proton-antiproton collisions at a center-of-mass energy root s = 1: 96 TeV. This search was conducted within the framework of the R parity conserving minimal supersymmetric extension of the standard model, assuming the stop decays dominantly to a lepton, a sneutrino, and a bottom quark. We searched for events with two oppositely-charged leptons, at least one jet, and missing transverse energy in a data sample corresponding to an integrated luminosity of 1 fb(-1) collected by the Collider Detector at Fermilab experiment. No significant evidence of a stop quark signal was found. Exclusion limits at 95% confidence level in the stop quark versus sneutrino mass plane are set. Stop quark masses up to 180 GeV/c(2) are excluded for sneutrino masses around 45 GeV/c(2), and sneutrino masses up to 116 GeV/c(2) are excluded for stop quark masses around 150 GeV/c(2).

引用

页数：16

共 50 条

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Aaltonen, T.
Alvarez Gonzalez, B.
Amerio, S.
Amidei, D.
Anastassov, A.
Annovi, A.
Antos, J.
Apollinari, G.
Appel, J. A.
Arisawa, T.
Artikov, A.
Asaadi, J.
Ashmanskas, W.
Auerbach, B.
Aurisano, A.
Azfar, F.
Badgett, W.
Bae, T.
Barbaro-Galtieri, A.
Barnes, V. E.
Barnett, B. A.
Barria, P.
Bartos, P.
Bauce, M.
Bedeschi, F.
Behari, S.
Bellettini, G.
Bellinger, J.
Benjamin, D.
Beretvas, A.
Bhatti, A.
Bisello, D.
Bizjak, I.
Bland, K. R.
Blumenfeld, B.
Bocci, A.
Bodek, A.
Bortoletto, D.
Boudreau, J.
Boveia, A.
Brigliadori, L.
Bromberg, C.
Brucken, E.
Budagov, J.
Budd, H. S.
Burkett, K.
Busetto, G.
Bussey, P.
Buzatu, A.
Calamba, A.
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[2] Search for a Heavy Particle Decaying to a Top Quark and a Light Quark in p(p)over-bar Collisions at √s=1.96 TeV
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Adelman, J.
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Amerio, S.
Amidei, D.
Anastassov, A.
Annovi, A.
Antos, J.
Apollinari, G.
Appel, J. A.
Arisawa, T.
Artikov, A.
Asaadi, J.
Ashmanskas, W.
Auerbach, B.
Aurisano, A.
Azfar, F.
Badgett, W.
Bae, T.
Barbaro-Galtieri, A.
Barnes, V. E.
Barnett, B. A.
Barria, P.
Bartos, P.
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