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Joint production of Z boson and charged top-pion pair at the ILC

Han Jin-Zhong Qin Zhen Wang Xue-Lei

Joint production of Z boson and charged top-pion pair at the ILC

Han Jin-Zhong, Qin Zhen, Wang Xue-Lei
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  • In this paper, we investigate the joint production of charged top-pions pair and Z gauge boson in the topcolor-assisted technicolor (TC2) at the International Linear Collider (ILC) via the process e+e- → Zπt+πt-. We calculate the production cross section of the process e+e- → Zπt+πt- and find that the cross section of the process e+e- → Zπt+πt- can reach 1 fb in a reasonable parameter space of the TC2 model. Considering the main decay mode of charged top-pion πt+ → tb, we find that such a production may provide copious events at the ILC.
    • Funds: Project supported by the National Natural Science Foundation of China (Grant No.10775039), and the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No.20094104110001).
    [1]

    Weinberg S 1976 Phys. Rev. D 13 974 Weinberg S 1979 Phys. Rev. D 19 1277

    [2]

    Hill C T 1995 Phys. Lett. B 345 483 Lane K, Eichten E 1995 Phys. Lett. B 352 382

    [3]

    Buchalla G, Burdman G, Hill C T, Kominis D 1996 Phys. Rev. D 53 5185 Hill C T, Simmons E H 2003 Phys. Rep. 381 235

    [4]

    Cao J J, Xiong Z H, Yang J M 2003 Phys. Rev. D 67 071701 Cao J J, Liu G L, Yang J M 2004 Phys. Rev. D 70 114035 Cao J J, Liu G L, Yang J M 2005 Eur. Phys. J. C 41 381

    [5]

    Yue C X, Zong H J, Wang S Z 2003 Phys. Lett. B 575 25 Yue C X, Wang L N 2007 J. Phys. G 34 139 Yue C X, Zong Z J, Xu L L, Chen J X 2006 Phys. Rev. D 73 015006 Huang J S, Lu G R, XuW,Wang SW2010 Chin. Phys. C 34 1057

    [6]

    Cao J J, Xiong Z H, Yang J M 2003 Nucl. Phys. B 651 87 Cao J J, Heng Z X,Wu L, Yang J M 2009 Phys. Rev. D 79 054003 Lu G R, Li X, Li P Y 2008 Acta Phys, Sin, 57 778 (in Chinese) [鲁公儒, 李 祥, 李培英 2008 物理学报 57 778] Lu G R, Han J Z 2010 Commun. Theor. Phys. 54 1091

    [7]

    Lopez-Villarejo J J, Vermaseren J A M 2009 Phys. Lett. B 675 356 Djouadi A, Driesen V, Junger C 1996 Phys. Rev. D 54 759

    [8]

    Yue C X, Feng H L, Ma W 2010 Chin. Phys. Lett. 27 011202 Liu Y B, Wang X L 2010 Nucl. Phys. B 839 294

    [9]

    Leibovich A K, Rainwater D 2002 Phys. Rev. D 65 055012

    [10]

    Barger V, Han Tao, Zeppenfeld D 1990 Phys. Rev. D 41 2782

    [11]

    Pukhov A hep-ph/9908288; hep-ph/0412191

    [12]

    Amsler C 2008 Particle Data Group, Phys. Lett. B 667 1

    [13]

    Wang X L, Xu W N, Du L L 2004 Commun. Theor. Phys. 41 737

    [14]

    Yasuhiro Okada 2007 J. Phys. Soc. Jap. 76 111011

  • [1]

    Weinberg S 1976 Phys. Rev. D 13 974 Weinberg S 1979 Phys. Rev. D 19 1277

    [2]

    Hill C T 1995 Phys. Lett. B 345 483 Lane K, Eichten E 1995 Phys. Lett. B 352 382

    [3]

    Buchalla G, Burdman G, Hill C T, Kominis D 1996 Phys. Rev. D 53 5185 Hill C T, Simmons E H 2003 Phys. Rep. 381 235

    [4]

    Cao J J, Xiong Z H, Yang J M 2003 Phys. Rev. D 67 071701 Cao J J, Liu G L, Yang J M 2004 Phys. Rev. D 70 114035 Cao J J, Liu G L, Yang J M 2005 Eur. Phys. J. C 41 381

    [5]

    Yue C X, Zong H J, Wang S Z 2003 Phys. Lett. B 575 25 Yue C X, Wang L N 2007 J. Phys. G 34 139 Yue C X, Zong Z J, Xu L L, Chen J X 2006 Phys. Rev. D 73 015006 Huang J S, Lu G R, XuW,Wang SW2010 Chin. Phys. C 34 1057

    [6]

    Cao J J, Xiong Z H, Yang J M 2003 Nucl. Phys. B 651 87 Cao J J, Heng Z X,Wu L, Yang J M 2009 Phys. Rev. D 79 054003 Lu G R, Li X, Li P Y 2008 Acta Phys, Sin, 57 778 (in Chinese) [鲁公儒, 李 祥, 李培英 2008 物理学报 57 778] Lu G R, Han J Z 2010 Commun. Theor. Phys. 54 1091

    [7]

    Lopez-Villarejo J J, Vermaseren J A M 2009 Phys. Lett. B 675 356 Djouadi A, Driesen V, Junger C 1996 Phys. Rev. D 54 759

    [8]

    Yue C X, Feng H L, Ma W 2010 Chin. Phys. Lett. 27 011202 Liu Y B, Wang X L 2010 Nucl. Phys. B 839 294

    [9]

    Leibovich A K, Rainwater D 2002 Phys. Rev. D 65 055012

    [10]

    Barger V, Han Tao, Zeppenfeld D 1990 Phys. Rev. D 41 2782

    [11]

    Pukhov A hep-ph/9908288; hep-ph/0412191

    [12]

    Amsler C 2008 Particle Data Group, Phys. Lett. B 667 1

    [13]

    Wang X L, Xu W N, Du L L 2004 Commun. Theor. Phys. 41 737

    [14]

    Yasuhiro Okada 2007 J. Phys. Soc. Jap. 76 111011

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  • Received Date:  20 April 2011
  • Accepted Date:  09 May 2011
  • Published Online:  15 April 2012

Joint production of Z boson and charged top-pion pair at the ILC

  • 1. College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China;
  • 2. North China University of Water Resources and Electric Power, Zhengzhou 450011, China
Fund Project:  Project supported by the National Natural Science Foundation of China (Grant No.10775039), and the Specialized Research Fund for the Doctoral Program of Higher Education (Grant No.20094104110001).

Abstract: In this paper, we investigate the joint production of charged top-pions pair and Z gauge boson in the topcolor-assisted technicolor (TC2) at the International Linear Collider (ILC) via the process e+e- → Zπt+πt-. We calculate the production cross section of the process e+e- → Zπt+πt- and find that the cross section of the process e+e- → Zπt+πt- can reach 1 fb in a reasonable parameter space of the TC2 model. Considering the main decay mode of charged top-pion πt+ → tb, we find that such a production may provide copious events at the ILC.

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