Search for heavy toplike quarks using lepton plus jets events in 1.96 TeV p(p)over-bar collisions

被引：30

作者：

Aaltonen, T. ^{[1
]}

Adelman, J. ^{[13
]}

Akimoto, T. ^{[53
]}

Albrow, M. G. ^{[17
]}

Gonzalez, B. Alvarez ^{[11
]}

Amerio, S. ^{[41
]}

Amidei, D. ^{[33
]}

Anastassov, A. ^{[44
,50
]}

Annovi, A. ^{[19
]}

Antos, J.

Aoki, M. ^{[24
]}

Apollinari, G. ^{[17
]}

Apresyan, A. ^{[46
]}

Arisawa, T. ^{[55
]}

Artikov, A. ^{[15
]}

Ashmanskas, W. ^{[17
]}

Attal, A. ^{[3
]}

Aurisano, A. ^{[51
]}

Azfar, F. ^{[40
]}

Azzi-Bacchetta, P. ^{[41
]}

Azzurri, P. ^{[44
]}

Bacchetta, N. ^{[41
]}

Badgett, W. ^{[17
]}

Barbaro-Galtieri, A. ^{[28
]}

Barnes, V. E. ^{[46
]}

Barnett, B. A. ^{[25
]}

Baroiant, S. ^{[7
]}

Bartsch, V. ^{[27
]}

Bauer, G. ^{[32
]}

Beauchemin, P. -H.

Bedeschi, F. ^{[44
]}

Bednar, P.

Behari, S. ^{[25
]}

Bellettini, G. ^{[44
]}

Bellinger, J. ^{[57
]}

Belloni, A. ^{[22
]}

Benjamin, D. ^{[16
]}

Beretvas, A. ^{[17
]}

Beringer, J. ^{[28
]}

Berry, T. ^{[29
]}

Bhatti, A. ^{[48
]}

Binkley, M. ^{[17
]}

Bisello, D. ^{[41
]}

Bizjak, I. ^{[30
]}

Blair, R. E. ^{[2
]}

Blocker, C. ^{[6
]}

Blumenfeld, B. ^{[25
]}

Bocci, A. ^{[16
]}

Bodek, A. ^{[47
]}

Boisvert, V. ^{[47
]}

机构：

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

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

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

[4] Baylor Univ, Waco, TX 76798 USA

[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] Slovak Acad Sci, 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, Switzerland

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

[22] Harvard Univ, Cambridge, MA 02138 USA

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

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

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

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

[30] UCL, London WC1E 6BT, England

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

[32] MIT, Cambridge, MA 02139 USA

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

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

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

[36] Northwestern Univ, Evanston, IL 60208 USA

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

[38] Okayama Univ, Okayama 7008530, Japan

[39] Osaka City Univ, Osaka 588, Japan

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

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

[42] Univ Paris 06, LPNHE, IN2P3 CNR, UMR7585, F-75252 Paris, France

[43] Univ Penn, Philadelphia, PA 19104 USA

[44] Univ Pisa, Ist Nazl Fis Nucl, Siena & Scuola Normale Super, I-56127 Pisa, Italy

[45] Univ Pittsburgh, Pittsburgh, PA 15260 USA

[46] Purdue Univ, W Lafayette, IN 47907 USA

[47] Univ Rochester, Rochester, NY 14627 USA

[48] Rockefeller Univ, New York, NY 10021 USA

[49] Univ Rome, Ist Nazl Fis Nucl, Sez Roma 1, I-00185 Rome, Italy

[50] Rutgers State Univ, Piscataway, NJ 08855 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 16期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevLett.100.161803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the results of a search for pair production of a new heavy toplike quark t' decaying to a W boson and another quark using the Collider Detector at Fermilab II detector in run II of the Tevatron p (p) over bar collider. Using a data sample corresponding to 760 pb(-1) of integrated luminosity, we fit the observed spectrum of total transverse energy and reconstructed t' quark mass to a combination of standard model processes and t' pair production. We see no evidence for t'(t) over bar' production, and we infer a lower limit of 256 GeV/c(2) on the mass of the t(') at 95% C.L. assuming standard strong couplings for the t'.

引用

页数：7

共 28 条

[11] Z→(b)over-bar-b decay asymmetry:: Lose-lose for the standard model -: art. no. 231802 [J].