Search for flavor changing neutral currents in decays of top quarks

被引：44

作者：

Abazov, V. M. ^{[1
]}

Abbott, B. ^{[78
]}

Acharya, B. S. ^{[32
]}

Adams, M. ^{[54
]}

Adams, T. ^{[52
]}

Alexeev, G. D. ^{[1
]}

Alkhazov, G. ^{[42
]}

Alton, A. ^{[66
]}

Alverson, G. ^{[65
]}

Alves, G. A. ^{[3
]}

Ancu, L. S. ^{[38
]}

Aoki, M. ^{[53
]}

Arov, M. ^{[63
]}

Askew, A. ^{[52
]}

Asman, B. ^{[45
,46
]}

Atramentov, O. ^{[70
]}

Avila, C. ^{[10
]}

BackusMayes, J. ^{[85
]}

Badaud, F. ^{[14
]}

Bagby, L. ^{[53
]}

Baldin, B. ^{[53
]}

Bandurin, D. V. ^{[52
]}

Banerjee, S. ^{[32
]}

Barberis, E. ^{[65
]}

Baringer, P. ^{[61
]}

Barreto, J. ^{[4
]}

Bartlett, J. F. ^{[53
]}

Bassler, U. ^{[20
]}

Bazterra, V. ^{[54
]}

Beale, S. ^{[7
,8
]}

Bean, A. ^{[61
]}

Begalli, M. ^{[4
]}

Begel, M. ^{[76
]}

Belanger-Champagne, C. ^{[45
,46
]}

Bellantoni, L. ^{[53
]}

Beri, S. B. ^{[30
]}

Bernardi, G. ^{[18
,19
]}

Bernhard, R. ^{[25
]}

Bertram, I. ^{[47
]}

Besancon, M. ^{[20
]}

Beuselinck, R. ^{[48
]}

Bezzubov, V. A. ^{[41
]}

Bhat, P. C. ^{[53
]}

Bhatnagar, V. ^{[30
]}

Blazey, G. ^{[55
]}

Blessing, S. ^{[52
]}

Bloom, K. ^{[69
]}

Boehnlein, A. ^{[53
]}

Boline, D. ^{[75
]}

Bolton, T. A. ^{[62
]}

机构：

[1] Joint Inst Nucl Res, Dubna, Russia

[2] Univ Buenos Aires, Buenos Aires, DF, Argentina

[3] Ctr Brasileiro Pesquisas Fis, LAFEX, Rio De Janeiro, Brazil

[4] Univ Estado Rio de Janeiro, BR-20550011 Rio De Janeiro, Brazil

[5] Univ Fed ABC, Santo Andre, Brazil

[6] Univ Estadual Paulista, Inst Fis Teor, BR-01405 Sao Paulo, Brazil

[7] York Univ, Toronto, ON M3J 2R7, Canada

[8] Simon Fraser Univ, Vancouver, BC, Canada

[9] Univ Sci & Technol China, Hefei 230026, Peoples R China

[10] Univ los Andes, Bogota, Colombia

[11] Charles Univ Prague, Fac Math & Phys, Ctr Particle Phys, Prague, Czech Republic

[12] Czech Tech Univ, CR-16635 Prague, Czech Republic

[13] Univ San Francisco Quito, Quito, Ecuador

[14] Univ Blaise Pascal, LPC, CNRS, IN2P3, Clermont, France

[15] Univ Grenoble 1, CNRS, LPSC, Inst Natl Polytech Grenoble,IN2P3, Grenoble, France

[16] Univ Aix Marseille 1, CPPM, CNRS, IN2P3, Marseille, France

[17] Univ Paris 11, CNRS, IN2P3, LAL, F-91405 Orsay, France

[18] Univ Paris 06, LPNHE, Paris, France

[19] Univ Paris 07, CNRS, IN2P3, Paris, France

[20] SPP, CEA, Saclay, France

[21] Univ Strasbourg, IPHC, CNRS, IN2P3, Strasbourg, France

[22] Univ Lyon, Lyon, France

[23] Univ Lyon 1, CNRS, IN2P3, IPNL, F-69622 Villeurbanne, France

[24] Rhein Westfal TH Aachen, Phys Inst A 1, Aachen, Germany

[25] Univ Freiburg, Inst Phys, Freiburg, Germany

[26] Univ Gottingen, Inst Phys 2, Gottingen, Germany

[27] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany

[28] Univ Munich, Munich, Germany

[29] Berg Univ Wuppertal, Fachbereich Phys, Wuppertal, Germany

[30] Panjab Univ, Chandigarh 160014, India

[31] Univ Delhi, Delhi 110007, India

[32] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[33] Univ Coll Dublin, Dublin 2, Ireland

[34] Korea Univ, Korea Detector Lab, Seoul, South Korea

[35] CINVESTAV, Mexico City 14000, DF, Mexico

[36] FOM Inst NIKHEF, Amsterdam, Netherlands

[37] Univ Amsterdam, NIKHEF, Amsterdam, Netherlands

[38] Radboud Univ Nijmegen, NIKHEF, NL-6525 ED Nijmegen, Netherlands

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

[40] Moscow MV Lomonosov State Univ, Moscow, Russia

[41] Inst High Energy Phys, Protvino, Russia

[42] Petersburg Nucl Phys Inst, St Petersburg, Russia

[43] ICREA, Barcelona, Spain

[44] IFAE, Barcelona, Spain

[45] Uppsala Univ, Uppsala, Sweden

[46] Stockholm Univ, S-10691 Stockholm, Sweden

[47] Univ Lancaster, Lancaster LA1 4YB, England

[48] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England

[49] Univ Manchester, Manchester M13 9PL, Lancs, England

[50] Univ Arizona, Tucson, AZ 85721 USA

来源：

PHYSICS LETTERS B | 2011年 / 701卷 / 03期

基金：

巴西圣保罗研究基金会; 瑞典研究理事会; 加拿大自然科学与工程研究理事会;

关键词：

Tevatron; D0; Top quark; Flavor changing neutral current; P(P)OVER-BAR COLLISIONS; ROOT-S; COUPLINGS;

D O I：

10.1016/j.physletb.2011.06.014

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a search for flavor changing neutral currents in decays of top quarks. The analysis is based on a search for t (t) over bar -> l'vl (l) over bar + jets (l, l' = e. mu) final states using 4.1 fb(-1) of integrated luminosity of p (p) over bar collisions at root s = 1.96 TeV. We extract limits on the branching ratio B(t -> Zq) (q = u, c quarks), assuming anomalous tuZ or tcZ couplings. We do not observe any sign of such anomalous coupling and set a limit of B < 3.2% at 95% C.L. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：313 / 320

页数：8

共 50 条

[1] Search for flavor-changing neutral currents in rare top decays
Gaitan, R.
Garces, E. A.
Martinez, R.
Montes de Oca, J. H.
ASTRONOMISCHE NACHRICHTEN, 2017, 338 (9-10) : 1147 - 1150
[2] Search for flavor-changing neutral currents in top quark decays at ATLAS
Gonzalez, A. Cortes
HADRON COLLIDER PHYSICS SYMPOSIUM, 2011, 2012, 28
[3] Search for flavor changing neutral currents in top quark decays in pp collisions at 7 TeV
Chatrchyan, S.
Khachatryan, V.
Sirunyan, A. M.
Tumasyan, A.
Adam, W.
Aguilo, E.
Bergauer, T.
Dragicevic, M.
Eroe, J.
Fabjan, C.
Friedl, M.
Fruehwirth, R.
Ghete, V. M.
Hammer, J.
Hoermann, N.
Hrubec, J.
Jeitler, M.
Kiesenhofer, W.
Knuenz, V.
Krammer, M.
Liko, D.
Mikulec, I.
Pernicka, M.
Rahbaran, B.
Rohringer, C.
Rohringer, H.
Schoefbeck, R.
Strauss, J.
Taurok, A.
Wagner, P.
Waltenberger, W.
Walzel, G.
Widl, E.
Wulz, C. -E.
Mossolov, V.
Shumeiko, N.
Gonzalez, J. Suarez
Bansal, S.
Cornelis, T.
De Wolf, E. A.
Janssen, X.
Luyckx, S.
Mucibello, L.
Ochesanu, S.
Roland, B.
Rougny, R.
Selvaggi, M.
Staykova, Z.
Van Haevermaet, H.
Van Mechelen, P.
PHYSICS LETTERS B, 2013, 718 (4-5) : 1252 - 1272
[4] Search for Top Quark Flavor-Changing Neutral Currents at CMS
Najafabadi, Mojtaba Mohammadi
NUCLEAR AND PARTICLE PHYSICS PROCEEDINGS, 2016, 273 : 2154 - 2158
[5] Flavor changing neutral currents with a fourth family of quarks
Herrera, Johana A.
Benavides, Richard H.
Ponce, William A.
PHYSICAL REVIEW D, 2008, 78 (07):
[6] FLAVOR-CHANGING NEUTRAL CURRENTS WITH HEAVY QUARKS
BARROSO, A
PHYSICAL REVIEW D, 1990, 42 (03): : 901 - 904
[7] Flavor changing neutral current decays of the top quark
Pérez, MA
Tavares-Velasco, G
PARTICLES AND FIELDS, 2000, 531 : 342 - 345
[8] FLAVOR-CHANGING NEUTRAL CURRENTS AND SEESAW MASSES FOR QUARKS
JOSHIPURA, AS
PHYSICAL REVIEW D, 1989, 39 (03): : 878 - 888
[9] FLAVOR-CHANGING NEUTRAL CURRENTS, WEAK-SCALE SCALARS AND RARE TOP DECAYS
LUKE, M
SAVAGE, MJ
PHYSICS LETTERS B, 1993, 307 (3-4) : 387 - 393
[10] Search for top quark flavor changing neutral currents in same-sign top quark production
Goldouzian, Reza
PHYSICAL REVIEW D, 2015, 91 (01):

← 1 2 3 4 5 →