ITP OpenIR  > 理论物理所2011年知识产出
New color-octet axial vector boson revisited
Wang, H; Wang, YK; Xiao, B; Zhu, SH; Wang, H (reprint author), Beijing Normal Univ, Dept Astron, Beijing 100871, Peoples R China.
2011
发表期刊PHYSICAL REVIEW D
ISSN1550-7998
卷号84期号:9页码:94019
摘要In this paper we reexamine how to utilize the previous proposed color-octet axial-vector boson Z(C) to explain the 3: 4 sigma anomaly of t (t) over bar forward-backward (FB) asymmetry A(FB) for m(t (t) over bar) > 450 GeV observed by CDF. Our numerical results indicate that the best-fit parameters are g(A)(q) = 0: 07, g(A)(Q) 3, and M(C) 440 GeV, which are obtained by fitting the mass dependent AFB and total cross section data provided by a recent CDF measurement. Here g(A)(q) (g(A)(Q)) and MC are the axial couplings among Z(C) with the first two (the third) generation quarks, and Z(C) mass, respectively. We also calculate one-side forward-backward asymmetry AOFB for top and bottom quark pair production at the LHC, focusing on the new contributions from Z(C). Our studies show that AOFB can be utilized to measure the properties of new particle Z(C).
部门归属[Wang, Hao] Beijing Normal Univ, Dept Astron, Beijing 100871, Peoples R China; [Wang, You-kai; Xiao, Bo; Zhu, Shou-hua] Peking Univ, Inst Theoret Phys, Beijing 100871, Peoples R China; [Wang, You-kai; Xiao, Bo; Zhu, Shou-hua] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China; [Wang, You-kai] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Zhu, Shou-hua] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China
关键词Forward-backward Asymmetry t(t)Over-bar Asymmetry Pair Production Tevatron Lhc Distributions Constraints Collisions Physics Cdf
学科领域Physics
资助者Natural Sciences Foundation of China [11075003] ; Natural Sciences Foundation of China [11075003] ; Natural Sciences Foundation of China [11075003] ; Natural Sciences Foundation of China [11075003]
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收录类别SCI
语种英语
资助者Natural Sciences Foundation of China [11075003] ; Natural Sciences Foundation of China [11075003] ; Natural Sciences Foundation of China [11075003] ; Natural Sciences Foundation of China [11075003]
WOS记录号WOS:000297126000001
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14232
专题理论物理所2011年知识产出
通讯作者Wang, H (reprint author), Beijing Normal Univ, Dept Astron, Beijing 100871, Peoples R China.
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GB/T 7714
Wang, H,Wang, YK,Xiao, B,et al. New color-octet axial vector boson revisited[J]. PHYSICAL REVIEW D,2011,84(9):94019.
APA Wang, H,Wang, YK,Xiao, B,Zhu, SH,&Wang, H .(2011).New color-octet axial vector boson revisited.PHYSICAL REVIEW D,84(9),94019.
MLA Wang, H,et al."New color-octet axial vector boson revisited".PHYSICAL REVIEW D 84.9(2011):94019.
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