Study of the Top-Pion Production Processes pp(pp)→Π0tΠ0t,bΠ0t at the Hadron Colliders

CHEN Lan-Li; XU Wen-Na; WANG Xue-Lei

Chinese Physics C> 2007, Vol. 31> Issue(3) : 232-235

Study of the Top-Pion Production Processes pp(pp)→Π0tΠ0t,bΠ0t at the Hadron Colliders

College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China2 Department of Electronics, Nanyang Institute of Technology, Nanyang 473004, China

Abstract
HTML
Reference
Related

PDF

Abstract：
In the framework of the topcolor-assisted Technicolor(TC2) model, the neutral top-pion (Π0t) production processes at hadron colliders(Tevatron and LHC), pp(pp)→Π0tΠ0t and pp(pp)→bΠ0t, are studied. The results show that the cross sections of these two processes at Tevatron are too small to observe Π0t. The cross sections can be significantly enhanced at LHC, but Π0t is also not observable via Π0tΠ0t production at LHC. The cross section of bΠ0t production reaches the level of a few hundred fb even a few pb at LHC and 10⁴—10⁵ events can be produced each year. Furthermore, Due to the existence of the flavor-changing coupling Π0t tc, Π0t can be experimentally detected via the decay mode Π0t tc with the clean background. Therefore, the enough distinguished Π0t events would be obtained via the bΠ0t production at LHC future experiments. Our study can provide the valuable theoretical information for probing neutral top-pion and testing TC2 model at LHC.

References

[1]

. Hill C T. Phys. Lett., 1995, B345: 483-4892. Susskind L. Phys. Rev., 1979, D20: 2619-26253. Buchalla G, Burdman G, Hill C T et al. Phys. Rev., 1996,D53: 5185-52004. YUE C X, XU Q J, LIU G L et al. Phys. Rev., 2001, D63:1150025. WANG X L, YANG Y L, LI B Z et al. Phys. Rev., 2002,D66: 075009; WANG X L, YANG Y L, LI B Z. Phys. Rev.,2004, D69: 055002; WANG X L, QIAO Q P, ZHANG QL. Phys. Rev., 2005, D71: 0950126. WANG X L, YANG Y L, LI B Z et al. Phys. Rev., 2002,D66: 0750137. WANG X L, LI B Z, YANG Y L. Phys. Rev., 2003, D68:115003; WANG X L, LI B Z, YANG Y L. Phys. Rev., 2003,D67: 0350058. WANG X L, WANG X X. Phys. Rev., 2005, D72: 0950129. WANG X L, YU L L, SONG N H et al. Commun. Theor.Phys., 2006, 45(3): 521-52610. HE H J, YUAN C P. Phys. Rev. Lett., 1999, 83: 28-3111. LU Gong-Ru, YIN Fu-Rong, WANG Xue-Lei et al. HEP NP, 2004, 28(4): 345-349 (in Chinese)(鲁公儒，殷复荣,王学雷等，高能物理与核物理， 2004, 28(4):345-349)

[1]	Shaowei Lan , Qiuhua Liu , Yong Li , Shusu Shi . Energy Dependence of Elliptic Flow Ratio v₂^PP/v₂^RP in Heavy-ion Collisions Using the AMPT Model. Chinese Physics C, 2026, 50(3): 1-6.
[2]	Jialin He , Xinye Peng , Zhongbao Yin , Liang Zheng . Extracting the kinetic freeze-out properties of high energy pp collisions at the LHC with event shape classifiers. Chinese Physics C, 2026, 50(2): 1-16.
[3]	Jun Wang , Qiang Zhao . Predictions for the isospin-violating decays of ${{\boldsymbol B}_{\boldsymbol c}({\boldsymbol{1P}})^{\bf +}\bf\to{\boldsymbol B}_{\boldsymbol c}^{({\bf *})+}\boldsymbol\pi^{\bf 0}}$. Chinese Physics C, 2026, 50(2): 1-11.
[4]	Ri-Guang Huang , You-Cai Chen , Dong-Liang Fang . 0νββ decay nuclear matrix elements under Left-Right symmetric model from the spherical quasi-particle random phase approximation method with realistic force. Chinese Physics C, 2026, 50(2): 1-11.
[5]	Alim Ruzi , Youpeng Wu , Ran Ding , Qiang Li . Searching Quantum Entanglement in pp → ZZ process. Chinese Physics C, 2026, 50(3): 1-8.
[6]	M. Zubair , Hira Sohail , Saira Waheed , Amara Ilyas , Irfan Mahmood . Stellar Configurations in f(R, L_m, T) Gravity: Probing Anisotropy and Stability via Minimal Geometric Deformation. Chinese Physics C, 2026, 50(2): 1-21.
[7]	Qu-Zhi Li , Zhiguang Xiao , Han-Qing Zheng . On the pole trajectory of the subthreshold negative parity nucleon with varying pion masses. Chinese Physics C, 2025, 49(12): 123103. doi: 10.1088/1674-1137/adfa02
[8]	Xiaobin Wang , Lei Chang . Unveiling the inner structure of the Pion’s first excited state. Chinese Physics C, 2025, 49(12): 123107. doi: 10.1088/1674-1137/adfc34
[9]	Xi-Liang Yuan , Chao Wang , Zhuang-Dong Bai , Gang Lü . Role and contribution of the resonance effect for the decay process of ${ \bar {\boldsymbol B}^{\bf 0}_{\boldsymbol s} \boldsymbol\rightarrow \boldsymbol\pi^{+}\boldsymbol\pi^{-}{\boldsymbol P}}$. Chinese Physics C, 2025, 49(11): 113103. doi: 10.1088/1674-1137/ade6d8
[10]	Bo Lan , Qin-Ze Song , Jin-Huan Sheng , Yi Qiao , Ru-Min Wang . Study of χ_cJ (J = 0,1,2) decays to light meson pairs based on SU(3) flavor symmetry/breaking analysis. Chinese Physics C, 2025, 49(12): 123106. doi: 10.1088/1674-1137/adff00
[11]	Xiaoxuan Lin , Wei Kou , Shixin Fu , Rong Wang , Chengdong Han , Xurong Chen . Revisiting the deuteron mass radius via near-threshold ρ⁰, ω, and ϕ meson photoproduction. Chinese Physics C, 2025, 49(10): 103105. doi: 10.1088/1674-1137/ade1c9
[12]	. Model-independent reconstruction of f (T ) gravity using genetic algorithms. Chinese Physics C, 2025, 49(11): 115106. doi: 10.1088/1674-1137/ade6d6
[13]	YANG Hong-Xun (for the BESⅡ collaboration) . Partial wave analysis of J/ψ→ppπ⁰ and measurement of J/ψ→ppη, ppη´. Chinese Physics C, 2009, 33(12): 1331-1335. doi: 10.1088/1674-1137/33/12/048
[14]	GUO Yun-Jun , HE Kang-Lin . Muon Identification Using the Efficiencies Ratio Method at BESⅡ. Chinese Physics C, 2007, 31(11): 1050-1055.
[15]	LI Ming-Liang , ZHU Sheng-Jiang , CHE Xing-Lai , YU Ying-Nan . Research on Two-Quasiparticle Bands in ⁹⁸Sr. Chinese Physics C, 2004, 28(S1): 75-77.
[16]	Yang Jianjun , Ma Boqiang , Li Guanglie . Non-perturbative Quark Propagator and the Study of the Non-trivial Q² Dependence in the Nucleon Structure Functions. Chinese Physics C, 1997, 21(2): 146-156.
[17]	Yu Hong , Shen Qixing , Zhang Lin . Angular Distribution of Process e⁺e^－→τ⁺τ^－,τ^－→a₁υτ,a₁→ρπ and Characteristics of a₁ Meson. Chinese Physics C, 1994, 18(7): 583-590.
[18]	BES Collaboration . Experimental Study of Resonance f₂(1270) in the J/ψ Hadronic Decay. Chinese Physics C, 1993, 17(2): 97-106.
[19]	SANG Jian-Ping , LIU Chao-Shan , LIU Yong . Relation Between the Gap at Z=64 Subshell and the Abrupt Transition in the Region N=88～90. Chinese Physics C, 1991, 15(2): 150-157.
[20]	Sa Ben-hao , Zhang Xi-zhen , Li Zhu-xia , Shi Yi-jin . A PRIMARY RESEARCH OF THE PHONON RENORMALIZATION OF NUCLEAR FIELD THEORY. Chinese Physics C, 1980, 4(3): 398-400.

Access

Get Citation

CHEN Lan-Li, XU Wen-Na and WANG Xue-Lei. Study of the Top-Pion Production Processes pp(pp)→Π0tΠ0t,bΠ0t at the Hadron Colliders[J]. Chinese Physics C, 2007, 31(3): 232-235.

CHEN Lan-Li, XU Wen-Na and WANG Xue-Lei. Study of the Top-Pion Production Processes pp(pp)→Π0tΠ0t,bΠ0t at the Hadron Colliders[J]. Chinese Physics C, 2007, 31(3): 232-235. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-06-23
Revised: 2006-06-28

Article Metric

Article Views(3896)
PDF Downloads(749)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Study of the Top-Pion Production Processes pp(pp)→Π0tΠ0t,bΠ0t at the Hadron Colliders

Corresponding author: WANG Xue-Lei,

College of Physics and Information Engineering, Henan Normal University, Xinxiang 453007, China2 Department of Electronics, Nanyang Institute of Technology, Nanyang 473004, China

Received Date: 2006-06-23

Accepted Date: 2006-06-28

Available Online: 2007-03-05

Abstract: In the framework of the topcolor-assisted Technicolor(TC2) model, the neutral top-pion (Π0t) production processes at hadron colliders(Tevatron and LHC), pp(pp)→Π0tΠ0t and pp(pp)→bΠ0t, are studied. The results show that the cross sections of these two processes at Tevatron are too small to observe Π0t. The cross sections can be significantly enhanced at LHC, but Π0t is also not observable via Π0tΠ0t production at LHC. The cross section of bΠ0t production reaches the level of a few hundred fb even a few pb at LHC and 10⁴—10⁵ events can be produced each year. Furthermore, Due to the existence of the flavor-changing coupling Π0t tc, Π0t can be experimentally detected via the decay mode Π0t tc with the clean background. Therefore, the enough distinguished Π0t events would be obtained via the bΠ0t production at LHC future experiments. Our study can provide the valuable theoretical information for probing neutral top-pion and testing TC2 model at LHC.

HTML

Reference (1)

Study of the Top-Pion Production Processes pp(pp)→Π0tΠ0t,bΠ0t at the Hadron Colliders

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article