Searching for Neutral Toppion in TC2 Model via a Flavor-Changing Process

ZHANG Jin-Yu; WAN Ling-De; WANG Xue-Lei; YANG Yue-Ling; LI Bing-Zhong

Chinese Physics C> 2002, Vol. 26> Issue(12) : 1209-1213

Searching for Neutral Toppion in TC2 Model via a Flavor-Changing Process

College of Physics and Information Engineering, Henan Normal University, Xinxiang 453002, China

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Abstract：
We study a flavor-changing toppion production process e+e-→tcΠ0t in the topcolorassisted technicolor(TC2) model. The studies show that, with high centre of mass energy in TESLA collider, the production cross section of e+e-→tcΠ0t is about 0.1 fb in most parameter regions of TC2 model and a few tens events of toppion can be produced each year. The resonance effect can enhance the cross section to a few fb when toppion mass is small. With clean background, the toppion events can possibly be detected at TESLA collider. On the other hand, we find that there exists a narrow peak in the toppion-charm invariant mass distribution which could be clearly detected. Therefore, the toppion production process e+e-→tcΠ0t provides a unique chance to detect toppion events and test the TC2 model.

References

[1]

. Weinberg S.Phys.Rev.,1976,D13:974;1979,D19:1277 2. Susskind L .Phys.Rev.,1976,D20:2619;Dimopoulos S,SusskindL .Nucl.Phys.,1979,B155:237;Eichten E ,LaneK .1980,Phys.Lett.,1980,90B :125 3. Peskin M ,Takeuchi T .Phys.Rev.Lett.,1990,65:9644. Erler J,Langacker P .Eur.Phys.J.,1998,C3:90 5. Hagiwara K ,Haidt D ,Matsumoto S.Eur.Phys.J.,1995,C2:95 6. Hill C T .Phys.Lett.,1995,B345:483;Lane K ,Eichten E .Phys.Lett.,1995,B352:382;Lane K .Phys.Rev.,1996,D54:2204;Chivukula R S et al.Phys.Rev.,1999,D59:075003 7. Buchalla G et al.Phys.Rev.,1996,D53:5185 8. YUE C X et al.Phys.Rev.,2001,D63:115002 9. YUE C X ,LIH ,WANG X L .hep ph0111316;WANG X L et al.Submitted to Commun.Theor.Phys.;YUE C X et al.hep ph/0011112 10. HE H J,YUAN C P .Phys.Rev.Lett.,1999,83:2811. LU G R et al.HEPNP ,2001,25:101(in Chinese)(鲁公儒等.高能物理与核物理,2001,25:101)12. YUE C X et al.HEPNP ,2001,25:289(in Chinese)(岳崇兴等.高能物理与核物理,2001,25:289) 13. Monig K .hep-ex0112001

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ZHANG Jin-Yu, WAN Ling-De, WANG Xue-Lei, YANG Yue-Ling and LI Bing-Zhong. Searching for Neutral Toppion in TC2 Model via a Flavor-Changing Process[J]. Chinese Physics C, 2002, 26(12): 1209-1213.

ZHANG Jin-Yu, WAN Ling-De, WANG Xue-Lei, YANG Yue-Ling and LI Bing-Zhong. Searching for Neutral Toppion in TC2 Model via a Flavor-Changing Process[J]. Chinese Physics C, 2002, 26(12): 1209-1213. shu

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Received: 2002-05-30
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Searching for Neutral Toppion in TC2 Model via a Flavor-Changing Process

Corresponding author: WANG Xue-Lei,

College of Physics and Information Engineering, Henan Normal University, Xinxiang 453002, China

Received Date: 2002-05-30
Accepted Date: 1900-01-01
Available Online: 2002-12-05

Abstract: We study a flavor-changing toppion production process e+e-→tcΠ0t in the topcolorassisted technicolor(TC2) model. The studies show that, with high centre of mass energy in TESLA collider, the production cross section of e+e-→tcΠ0t is about 0.1 fb in most parameter regions of TC2 model and a few tens events of toppion can be produced each year. The resonance effect can enhance the cross section to a few fb when toppion mass is small. With clean background, the toppion events can possibly be detected at TESLA collider. On the other hand, we find that there exists a narrow peak in the toppion-charm invariant mass distribution which could be clearly detected. Therefore, the toppion production process e+e-→tcΠ0t provides a unique chance to detect toppion events and test the TC2 model.