Search for anomalous kinematics in t(t)over-bar Dilepton events at CDF II -: art. no. 022001

被引：6

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

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

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 Los Angeles, Los Angeles, CA 95616 USA

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

[9] Univ Calif Santa Barbara, Santa Barbara, CA 93106 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] Joint Nucl Res Inst, RU-141980 Dubna, Russia

[14] Duke Univ, Durham, NC 27708 USA

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

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

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

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

[19] Harvard Univ, Cambridge, MA 02138 USA

[20] Univ Helsinki, Helsinki Grp, Helsinki Inst Phys, FIN-00044 Helsinki, Finland

[21] Univ Helsinki, Div High Energy Phys, Dept Phys Sci, FIN-00044 Helsinki, Finland

[22] Hiroshima Univ, Higashihiroshima 724, Japan

[23] Univ Illinois, Urbana, IL 61801 USA

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

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

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

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

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

[29] Sungkyunkwan Univ, Suwon 440746, South Korea

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

[31] Univ Liverpool, Liverpool L69 3BX, Merseyside, England

[32] UCL, London WC1E 6BT, England

[33] MIT, Cambridge, MA 02139 USA

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

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

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

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

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

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

[40] Northwestern Univ, Evanston, IL 60208 USA

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

[42] Okayama Univ, Okayama 7008530, Japan

[43] Osaka City Univ, Osaka 588, Japan

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

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

[46] Univ Penn, Philadelphia, PA 19104 USA

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

[48] Scuola Normale Super Pisa, I-56100 Pisa, Italy

[49] Univ Pittsburgh, Pittsburgh, PA 15260 USA

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

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.95.022001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on a search for anomalous kinematics of t (t) over bar dilepton events in p (p) over bar collisions at root s = 1: 96 TeV using 193 pb(-1) of data collected with the CDF II detector. We developed a new a priori technique designed to isolate the subset in a data sample revealing the largest deviation from standard model (SM) expectations and to quantify the significance of this departure. In the four-variable space considered, no particular subset shows a significant discrepancy, and we find that the probability of obtaining a data sample less consistent with the SM than what is observed is 1.0%-4.5%.

引用

页数：7

共 15 条

[1] Measurement of the top quark pair production cross section in p(p)over-bar collisions [J].

Abachi, S ;

Abbott, B ;

Abolins, M ;

Acharya, BS ;

Adam, I ;

Adams, DL ;

Adams, M ;

Ahn, S ;

Aihara, H ;

Alves, GA ;

Amidi, E ;

Amos, N ;

Anderson, EW ;

Astur, R ;

Baarmand, MM ;

Baden, A ;

Balamurali, V ;

Balderston, J ;

Baldin, B ;

Banerjee, S ;

Bantly, J ;

Bartlett, JF ;

Bazizi, K ;

Belyaev, A ;

Beri, SB ;

Bertram, I ;

Bezzubov, VA ;

Bhat, PC ;

Bhatnagar, V ;

Bhattacharjee, M ;

Biswas, N ;

Blazey, G ;

Blessing, S ;

Bloom, P ;

Boehnlein, A ;

Bojko, NI ;

Borcherding, F ;

Borders, J ;

Boswell, C ;

Brandt, A ;

Brock, R ;

Bross, A ;

Buchholz, D ;

Burtovoi, VS ;

Butler, JM ;

Carvalho, W ;

Casey, D ;

Casilum, Z ;

CastillaValdez, H ;

Chakraborty, D .

PHYSICAL REVIEW LETTERS, 1997, 79 (07) :1203-1208

[2]

Abe F, 1998, PHYS REV LETT, V80, P2779, DOI 10.1103/PhysRevLett.80.2779

[3] 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

[4] 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

[5] Multilepton signal for supersymmetric particles in the Fermilab Tevatron data? [J].

Barnett, RM ;

Hall, LJ .

PHYSICAL REVIEW LETTERS, 1996, 77 (17) :3506-3509

[6] NLL resummation of the heavy-quark hadroproduction cross-section [J].

Bonciani, R ;

Catani, S ;

Mangano, ML ;

Nason, P .

NUCLEAR PHYSICS B, 1998, 529 (1-2) :424-450

[7] The t(t)over-bar cross-section at 1.8 and 1.96 TeV:: a study of the systematics due to parton densities and scale dependence -: art. no. 068 [J].

Cacciari, M ;

Frixione, S ;

Ridolfi, G ;

Mangano, ML ;

Nason, P .

JOURNAL OF HIGH ENERGY PHYSICS, 2004, (04)

[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]

DEMORTIER L, 1999, FERMILABTM2084

[10]

IVANOV A, 2004, THESIS U ROCHESTER

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