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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.
[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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[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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