Production of the neutral top-pion π_t^0 in association with a high-pT jet at the LHC  

作　　者：朱世海 岳崇兴 刘伟 丁丽 

机构地区：[1]Department of Physics,Liaoning Normal University

出　　处：《Chinese Physics C》2009年第9期717-721,共5页中国物理C（英文版）

基　　金：Supported by NSFC (10675057);Foundation of Liaoning Educational Committee (2007T086)

摘　　要：In the framework of the topcolor-assisted technicolor （TC2） model, we study the production of the neutral top-pion πt^0 in association with a high-pw jet at the LHC, which proceeds via the partonic processes gg→πt^0g, gq →πt^0q, qq→πt^0g, gb（b）→πt^0b（b）, and bb→πt^0g. We find that it is very challenging to detect the neutral top-pion πt^0 via the process pp → πt^0 ＋jet ＋ X＋ tt＋jet ＋X, while the possible signatures of πt^0 might be detected via the process pp→πt^0 ＋jet ＋ X→（tc＋tc）＋jet＋X at the LHC.In the framework of the topcolor-assisted technicolor （TC2） model, we study the production of the neutral top-pion πt^0 in association with a high-pw jet at the LHC, which proceeds via the partonic processes gg→πt^0g, gq →πt^0q, qq→πt^0g, gb（b）→πt^0b（b）, and bb→πt^0g. We find that it is very challenging to detect the neutral top-pion πt^0 via the process pp → πt^0 ＋jet ＋ X＋ tt＋jet ＋X, while the possible signatures of πt^0 might be detected via the process pp→πt^0 ＋jet ＋ X→（tc＋tc）＋jet＋X at the LHC.

关 键 词：neutral top-pion LHC production cross section 

分 类 号：O572.33[理学—粒子物理与原子核物理] P155.22[理学—物理]