Single top production associated with a neutral scalar at LHC in topcolor-assisted technicolor

LIU Guo-Li; ZHANG Huan-Jun

doi:10.1088/1674-1137/32/9/004

Chinese Physics C> 2008, Vol. 32> Issue(9) : 697-699 DOI: 10.1088/1674-1137/32/9/004

Single top production associated with a neutral scalar at LHC in topcolor-assisted technicolor

LIU Guo-Li ,
ZHANG Huan-Jun ^,

Abstract
HTML
Reference
Related

PDF

Abstract：
The topcolor-assisted technicolor (TC2) model predicts a number of neutral scalars like the top-pion (π⁰_t) and the top-Higgs (h⁰_t). These scalars have flavor-changing neutral-current (FCNC) top quark couplings, among which the top-charm transition couplings may be sizable. Such FCNC couplings induce single top productions associated with a neutral scalar at the CERN Large Hadron Collider (LHC) through the parton processes cg→t π⁰_t and cg→t h⁰_t. In this paper we examine these productions and find their production rates can exceed the 3σ sensitivity of the LHC in a large part of parameter space. Since in the Standard Model and the minimal supersymmetric model such rare productions have unobservably small production rates at the LHC, these rare processes will serve as a good probe for the TC2 model.

References

[1]

. Chakraborty D, Konigsberg J, Rainwater D. Ann. Rev.Nucl. Part. Sci., 2003, 53: 301; Simmons E H. hep-ph/0211335; YUAN C P. hep-ph/0203088; Willenbrock S.hep-ph/0211067; Beneke M et al. hep-ph/0003033; Hill CT, Parke S J. Phys. Rev. D, 1994, 49: 4454; Whisnant Ket al. Phys. Rev. D, 1997, 56: 467; Hikasa K et al. Phys.Rev. D, 1998, 58: 1140032. Tevatron Electroweak Working Group. hep-ex/07030343. Eilam G, Hewett J L, Soni A. Phys. Rev. D, 1991, 44:1473; Mele B, Petrarca S, Soddu A. Phys. Lett. B, 1998,435: 401; Cordero-Cid A et al. Phys. Rev. D, 2006, 73:0940054. LI C S, Oakes R J, YANG J M. Phys. Rev. D, 1994, 49:293; Couture G, Hamzaoui C, Konig H. Phys. Rev. D, 1995,52: 1713; Lopez J L, Nanopoulos D V, Rangarajan R.Phys. Rev. D, 1997, 56: 3100; de Divitiis G M, PetronzioR, Silvestrini L. Nucl. Phys. B, 1997, 504: 45; YANG J M,YOUNG B L, ZHANG X. Phys. Rev. D, 1998, 58: 055001;LI C S, YANG L L, JIN L G. Phys. Lett. B, 2004, 599: 92;Frank M, Turan I. Phys. Rev. D, 2006, 74: 073014; YANGJ M, LI C S. Phys. Rev. D, 1994, 49: 3412; Guasch J, SolaJ. Nucl. Phys. B, 1999, 562: 3; Eilam G et al. Phys. Lett.B, 2001, 510: 227; Diaz-Cruz J L, HE H J, YUAN C P.Phys. Lett. B, 2002, 179: 530; Delepine D, Khalil S. Phys.Lett. B, 2004, 599: 625. Eilam G, Frank M, Turan I. Phys. Rev. D, 2006, 74:035012; LIU J J, LI C S, YANG L L, JIN L G. Nucl. Phys.B, 2005, 705: 3; Guasch J et al. hep-ph/0601218; YANGJ M. Annals Phys., 2005, 316: 529; CAO J, XIONG Z,YANG J M. Nucl. Phys. B, 2003, 651: 876. CAO J et al. Phys. Rev. D, 2006, 74: 031701; Phys. Rev.D, 2007, 75: 0750217. HE H J, YUAN C P. Phys. Rev. Lett., 1999, 83: 28; Burd-man G. Phys. Rev. Lett., 1999, 83: 2888; CAO J, XIONGZ, YANG J M. Phys. Rev. D, 2003, 67: 071701; YUE Cet al. Phys. Lett. B, 2000, 496: 93; CAO J et al. Phys.Rev. D, 2004, 70: 114035; Larios F, Penunuri F. J. Phys.G, 2004, 30: 895; CAO J et al. Eur. Phys. Jour. C, 2005,41: 381; Phys. Rev. D, 2007, 76: 0140048. Hill C T. Phys. Lett. B, 1995, 345: 483; Lane K, EichtenE. Phys. Lett. B, 1995, 352: 382; Lane K, Eichten E. Phys.Lett. B, 1998, 433: 96; Bardeen W A, Hill C T, Lindner M.Phys. Rev. D, 1990, 41: 1647; Cvetic G. Rev. Mod. Phys.,1999, 71: 5139. Burdman G, Kominis D. Phys. Lett. B, 1997, 403: 107;Loniaz W, Takuch T. Phys. Rev. D, 1999, 62: 05500510. Pumplin J et al. JHEP, 2006, 0602: 03211. Chivukula R S, Dobrescu B, Georgi H, Hill C T. Phys. Rev.D, 1999, 59: 07500312. Balaji B. Phys. Lett. B, 1997, 393: 8913. Burdman G, Kominis D. Phys. Lett. B, 1997, 403: 101;Loinaz W, Takeuchi T. Phys. Rev. D, 1999, 60: 015005;YUE C, KUANG Y P, WANG X, LI W. Phys. Rev. D,2000, 62: 05500514. Aguilar-Saavedra J A. Acta Phys. Polon. B, 2004, 35: 2695;Aguilar-Saavedra J A, Branco G C. Phys. Lett. B, 2000,495: 347

[1]	Tian-Hong Wang;Geng Li;Yue Jiang;Guo-Li Wang . Doubly-charged scalar in four-body decays of neutral flavored mesons. Chinese Physics C, 2019, df87c41e-622f-49a7-b081-5c584df157aa(11): 13103-.
[2]	Bingfang Yang , Huaying Zhang , Biaofeng Hou , Ning Liu . T-odd top partner pair production in the dilepton final states at the LHC in the littlest Higgs Model with T-parity. Chinese Physics C, 2018, 42(10): 103102. doi: 10.1088/1674-1137/42/10/103102
[3]	Fei Huang , Hong-Lei Li , Shi-Yuan Li , Zong-Guo Si , Wei Su , Zhong-Juan Yang . Search for W' signal in single top quark production at the LHC. Chinese Physics C, 2018, 42(3): 033103. doi: 10.1088/1674-1137/42/3/033103
[4]	Yu-Ping Kuang , Hong-Yu Ren , Ling-Hao Xia . Further investigation of the model-independent probe of heavy neutral Higgs bosons at LHC Run 2. Chinese Physics C, 2016, 40(2): 023101. doi: 10.1088/1674-1137/40/2/023101
[5]	Hong-Lei Li , Peng-Cheng Lu , Zong-Guo Si , Ying Wang . Associated production of Higgs boson and tt at LHC. Chinese Physics C, 2016, 40(6): 063102. doi: 10.1088/1674-1137/40/6/063102
[6]	FENG Yu , GONG Bin , WAN Lu-Ping , WANG Jian-Xiong . An updated study of Y production and polarizationat the Tevatron and LHC. Chinese Physics C, 2015, 39(12): 123102. doi: 10.1088/1674-1137/39/12/123102
[7]	GUO Zhan-Ying , YANG Guang , YANG Bing-Fang . Single vector-like top partner production in the left-right twin Higgs model at TeV energy eγ colliders. Chinese Physics C, 2013, 37(10): 103101. doi: 10.1088/1674-1137/37/10/103101
[8]	LI Xu-Xin , YUE Chong-Xing , CHEN Jian-Xing , DAI Jie-Nian . Production of a neutral scalar associatedwith a photon at the LHC in the topcolor-assisted technicolor model. Chinese Physics C, 2012, 36(6): 485-488 . doi: 10.1088/1674-1137/36/6/002
[9]	LI Bing-Zhong , HAN Jin-Zhong . Searching for a neutral top-Higgs in association with top-quark pairs at an e⁺e^- collider in the TC2 model. Chinese Physics C, 2011, 35(10): 908-913. doi: 10.1088/1674-1137/35/10/004
[10]	HUANG Jin-Shu , LU Gong-Ru , XU Wei , WANG Shuai-Wei . Associated production of a neutral top-Higgs with a heavy-quark pair in the γγ collisions at ILC. Chinese Physics C, 2010, 34(8): 1057-1060. doi: 10.1088/1674-1137/34/8/004
[11]	WEN Jia , YUE Chong-Xing , LIU Jin-Yan , LIU Wei . Littlest Higgs model with T-parity and single top production in ep collisions. Chinese Physics C, 2009, 33(2): 89-93. doi: 10.1088/1674-1137/33/2/002
[12]	ZHU Shi-Hai , YUE Chong-Xing , LIU Wei , DING Li . Production of the neutral top-pion π_t⁰ in association with a high-p_T jet at the LHC. Chinese Physics C, 2009, 33(9): 717-721. doi: 10.1088/1674-1137/33/9/002
[13]	LIU Yao-Bei , WANG Xue-Lei , REN Xiao-Yan , CAO Yong-Hua . SU(3) simple group model and single top production at the e^－γ colliders. Chinese Physics C, 2008, 32(2): 88-91. doi: 10.1088/1674-1137/32/2/002
[14]	LU Gong-Ru , HUANG Jin-Shu , LV Gang . Research of bb Production in the Topcolor Assisted Technicolor Model. Chinese Physics C, 2007, 31(2): 143-149.
[15]	GU Qin-Zhong , JIANG Feng-Chun , WANG Xue-Lei , YANG Hua . Probing Top Quark Polarization Effects in Topcolor-Assisted Technicolor Model. Chinese Physics C, 2007, 31(11): 1010-1015.
[16]	YUE Chong-Xing , ZHAO Ye , LI Hong , ZHAO Qi . Lepton Flavor Violating Z→l_il_jin Flavor-Universal Topcolor-Assisted Technicolor Models. Chinese Physics C, 2003, 27(12): 1070-1073.
[17]	YUE Chong-Xing , LU Gong-Ru , LI Wei-Bin , SUN Jun-Feng . PGB′s Corrections to Top-Quark Production in Topcolor-assisted Multiscale Technicolor Model. Chinese Physics C, 2001, 25(4): 289-295.
[18]	YUE Chong-Xing , LI Jian-Tao . Top-Charm Production in the Topcolor-Assisted Technicolor Theory. Chinese Physics C, 2001, 25(10): 945-951.
[19]	LU GongRu , YUE ChongXing , LI WeiBin , SUN JunFeng . One Loop Effects to the Process e⁺e^－→bs in Topcolor-Assisted Multiscale Technicolor Model. Chinese Physics C, 2000, 24(11): 998-1004.
[20]	LU GongRu , GUO HongKai , YUE ChongXing , XIAO ZhenJun . Process e⁺e^－→tc in Topcolor-Assisted Technicolor Model. Chinese Physics C, 2000, 24(9): 810-817.

Access

Get Citation

LIU Guo-Li and ZHANG Huan-Jun. Single top production associated with a neutral scalar at LHC in topcolor-assisted technicolor[J]. Chinese Physics C, 2008, 32(9): 697-699. doi: 10.1088/1674-1137/32/9/004

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2007-11-08
Revised: 2007-11-23

Article Metric

Article Views(2978)
PDF Downloads(558)
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

Single top production associated with a neutral scalar at LHC in topcolor-assisted technicolor

Corresponding author: ZHANG Huan-Jun,

Received Date: 2007-11-08

Accepted Date: 2007-11-23

Available Online: 2008-09-05

Abstract:

The topcolor-assisted technicolor (TC2) model predicts a number of neutral scalars like the top-pion (π⁰_t) and the top-Higgs (h⁰_t). These scalars have flavor-changing neutral-current (FCNC) top quark couplings, among which the top-charm transition couplings may be sizable. Such FCNC couplings induce single top productions associated with a neutral scalar at the CERN Large Hadron Collider (LHC) through the parton processes cg→t π⁰_t and cg→t h⁰_t. In this paper we examine these productions and find their production rates can exceed the 3σ sensitivity of the LHC in a large part of parameter space. Since in the Standard Model and the minimal supersymmetric model such rare productions have unobservably small production rates at the LHC, these rare processes will serve as a good probe for the TC2 model.

HTML

Reference (1)

Single top production associated with a neutral scalar at LHC in topcolor-assisted technicolor

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article