Boosting the t(t)over-bar charge asymmetry

被引:24
作者
Aguilar-Saavedra, J. A. [1 ,2 ]
Juste, A. [3 ,4 ]
Rubbo, F. [4 ]
机构
[1] Univ Granada, Dept Fis Teor & Cosmos, E-18071 Granada, Spain
[2] Univ Granada, CAFPE, E-18071 Granada, Spain
[3] ICREA, Barcelona, Spain
[4] IFAE, Barcelona, Spain
关键词
TOP; TEVATRON;
D O I
10.1016/j.physletb.2011.12.007
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We propose a kinematical enhancement of the t (t) over bar charge asymmetry at the LHC by selecting events with the t (t) over bar centre of mass frame highly boosted along the beam axis. This kinematical selection increases the asymmetries and their significance up to a factor of two in a rather model-independent fashion. Hence, it can be a perfect complement to enhance model discrimination at the LHC. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:92 / 98
页数:7
相关论文
共 60 条
[1]   Evidence for a mass dependent forward-backward asymmetry in top quark pair production [J].
Aaltonen, T. ;
Gonzalez, B. Alvarez ;
Amerio, S. ;
Amidei, D. ;
Anastassov, A. ;
Annovi, A. ;
Antos, J. ;
Apollinari, G. ;
Appel, J. A. ;
Apresyan, A. ;
Arisawa, T. ;
Artikov, A. ;
Asaadi, J. ;
Ashmanskas, W. ;
Auerbach, B. ;
Aurisano, A. ;
Azfar, F. ;
Badgett, W. ;
Barbaro-Galtieri, A. ;
Barnes, V. E. ;
Barnett, B. A. ;
Barria, P. ;
Bartos, P. ;
Bauce, M. ;
Bauer, G. ;
Bedeschi, F. ;
Beecher, D. ;
Behari, S. ;
Bellettini, G. ;
Bellinger, J. ;
Benjamin, D. ;
Beretvas, A. ;
Bhatti, A. ;
Binkley, M. ;
Bisello, D. ;
Bizjak, I. ;
Bland, K. R. ;
Blumenfeld, B. ;
Bocci, A. ;
Bodek, A. ;
Bortoletto, D. ;
Boudreau, J. ;
Boveia, A. ;
Brau, B. ;
Brigliadori, L. ;
Brisuda, A. ;
Bromberg, C. ;
Brucken, E. ;
Bucciantonio, M. ;
Budagov, J. .
PHYSICAL REVIEW D, 2011, 83 (11)
[2]  
Abazov V., ARXIV11074995HEPEX D
[3]   Single top quark production at LHC with anomalous Wtb couplings [J].
Aguilar-Saavedra, J. A. .
NUCLEAR PHYSICS B, 2008, 804 (1-2) :160-192
[4]   Shaping the top asymmetry [J].
Aguilar-Saavedra, J. A. ;
Perez-Victoria, M. .
PHYSICS LETTERS B, 2011, 705 (03) :228-234
[5]   Simple models for the top asymmetry: constraints and predictions [J].
Aguilar-Saavedra, J. A. ;
Perez-Victoria, M. .
JOURNAL OF HIGH ENERGY PHYSICS, 2011, (09)
[6]   No like-sign tops at Tevatron: Constraints on extended models and implications for the t(t)over-bar asymmetry [J].
Aguilar-Saavedra, J. A. ;
Perez-Victoria, M. .
PHYSICS LETTERS B, 2011, 701 (01) :93-100
[7]  
Aguilar-Saavedra JA, 2011, J HIGH ENERGY PHYS, DOI 10.1007/JHEP05(2011)034
[8]   Effective four-fermion operators in top physics: A roadmap [J].
Aguilar-Saavedra, J. A. .
NUCLEAR PHYSICS B, 2011, 843 (03) :638-672
[9]  
Aguilar-Saavedra J.A., ARXIV11054606HEPPH
[10]   Top-pair forward-backward asymmetry beyond next-to-leading order [J].
Ahrens, Valentin ;
Ferroglia, Andrea ;
Neubert, Matthias ;
Pecjak, Ben D. ;
Yang, Li Lin .
PHYSICAL REVIEW D, 2011, 84 (07)