Probing top anomalous couplings at the LHC with trilepton signatures in the single top mode

被引：27

作者：

Agram, Jean-Laurent ^{[1
]}

Andrea, Jeremy ^{[2
]}

Conte, Eric ^{[1
]}

Fuks, Benjamin ^{[2
,3
]}

Gele, Denis ^{[2
]}

Lansonneur, Pierre ^{[2
]}

机构：

[1] Univ Haute Alsace, IUT Colmar, GRPHE, F-68008 Colmar, France

[2] Univ Strasbourg, CNRS, Dept Rech Subat, Inst Pluridisciplinaire Hubert Curien,IN2P3, F-67037 Strasbourg, France

[3] CERN, Dept Phys, Div Theory, CH-1211 Geneva 23, Switzerland

来源：

PHYSICS LETTERS B | 2013年 / 725卷 / 1-3期

关键词：

CHANGING NEUTRAL CURRENTS; QUARK PRODUCTION; HADRON COLLIDERS; PP COLLISIONS; ROOT-S=7 TEV; SEARCH; DECAYS; FEYNRULES;

D O I：

10.1016/j.physletb.2013.06.052

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate trilepton final states to probe top anomalous couplings at the Large Hadron Collider. We focus on events originating from the associated production of a single top quark with a Z-boson, a channel sensitive to several flavor-changing neutral interactions of top and up/charm quarks. In particular, we explore a way to access simultaneously their anomalous couplings to Z-bosons and gluons and derive the discovery potential of trilepton final states to such interactions with 20 fb(-1) of 8 TeV collisions. We show that effective coupling strengths of (sic)(0.1-1) TeV-1 can be reached. Equivalently, branching fractions of top quarks into lighter quarks and gluons or Z-bosons can be constrained to be below (sic)(0.1-1)%. 2013 Elsevier B.V. All rights reserved.

引用

页码：123 / 126

页数：4

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