Chin. Phys. Lett.  2011, Vol. 28 Issue (11): 111401    DOI: 10.1088/0256-307X/28/11/111401
THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
Next-to-Leading Order QCD Corrections to t
DUAN Peng-Fei, ZHANG Ren-You, MA Wen-Gan, HAN Liang, GUO Lei, WANG Shao-Ming
Department of Modern Physics, University of Science and Technology of China, Hefei 230026
Cite this article:   
DUAN Peng-Fei, ZHANG Ren-You, MA Wen-Gan et al  2011 Chin. Phys. Lett. 28 111401
Download: PDF(643KB)  
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract We present theoretical predictions including the complete next-to-leading order (NLO) QCD corrections to the top quark pair production in association with a photon at the LHC with the center-of-mass system energy of 7 TeV. The uncertainties of the leading order (LO) and NLO QCD corrected cross sections due to the renormalization/factorization scale, and the distributions of the transverse momenta of the final top quark and the photon are studied. Moreover, we provide the numerical results of the LO, NLO QCD corrected cross sections and the corresponding K−factors with different photon transverse momentum cuts. We also discuss the impact of QCD corrections to the pp →ttγ+X in the case that there exists an exotic top quark with an electric charge of −4e/3 at the 7 TeV LHC.
Keywords: 14.65.Ha      14.70.Bh      12.38.Bx     
Received: 21 March 2011      Published: 30 October 2011
PACS:  14.65.Ha (Top quarks)  
  14.70.Bh (Photons)  
  12.38.Bx (Perturbative calculations)  
TRENDMD:   
URL:  
https://cpl.iphy.ac.cn/10.1088/0256-307X/28/11/111401       OR      https://cpl.iphy.ac.cn/Y2011/V28/I11/111401
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
DUAN Peng-Fei
ZHANG Ren-You
MA Wen-Gan
HAN Liang
GUO Lei
WANG Shao-Ming
[1] Abe F et al (CDF Collaboration) 1995 Phys. Rev. Lett. 74 2626
[2] Abachi S et al (DØ Collaboration) 1995 Phys. Rev. Lett. 74 2632
[3] Chang D, Chang W F and Ma E 1998 Phys. Rev. D 59 091503
[4] Abazov V M et al (D0 Collaboration) 2007 Phys. Rev. Lett. 98 041801
[5] Baur U, Buice M and Orr L H 2001 Phys. Rev. D 64 094019
[6] Nason P et al 1988 Nucl. Phys. B 303 607
Beenakker W et al 1989 Phys. Rev. D 40 54
[7] Melnikov K and Schulze M 2009 J. High Energy Phys. 08 049
Czakon M and Mitov A 2010 Nucl. Phys. B 824 111
[8] Korner J G, Merebashvili Z and Rogal M 2008 Phys. Rev. D 77 094011
Czakon M 2008 Phys. Lett. B 664 307
Bonciani R, Ferroglia A, Gehrmann T, Maitre D and Studerus C 2008 J. High Energy Phys. 07 129
Anastasiou C and Aybat S M 2008 Phys. Rev. D 78 114006
[9] Bonciani R, Ferroglia A, Gehrmann T and Studerus C 2009 J. High Energy Phys. 08 067
Beneke M, Falgari P and Schwinn C 2010 Nucl. Phys. B 828 69
Czakon M, Mitov A and Sterman G F 2009 Phys. Rev. D 80 074017
[10] Beenakker W et al 2001 Phys. Rev. Lett. 87 201805; Reina L and Dawson S 2001 Phys. Rev. Lett. 87 201804
[11] Dittmaier S, Uwer P and Weinzierl S 2007 Phys. Rev. Lett. 98 262002
Melnikov K and Schulze M 2010 Nucl. Phys. B 840 129
[12] Lazopoulos A, McElmurry T, Melnikov K and Petriello F 2008 Phys. Lett. B 666 62
[13] Duan P F, Ma W G, Zhang R Y, Han L, Guo L and Wang S M 2009 Phys. Rev. D 80 014022
[14] Melnikov K, Scharf A and Schulze M 2011 Phys. Rev. D 83 074013
[15] Private communications with Fleck I
[16] Hahn T 2001 Comput. Phys. Commun. 140 418
[17] Hahn T and Perez-Victoria M 1999 Comput. Phys. Commun. 118 153
[18] Harris B W and Owens J F 2002 Phys. Rev. D 65 094032
[19] Amsler C et al 2008 Phys. Lett. B 667 1
[20] Frixione S 1998 Phys. Lett. B 429 369
Related articles from Frontiers Journals
[1] LI Bing-Zhong, HAN Jin-Zhong . Associated Production of a Neutral Top-Higgs with Top Quark Pairs at the LHC within the TC2 model[J]. Chin. Phys. Lett., 2011, 28(4): 111401
[2] WANG Hong-Min, HOU Zhao-Yu, SUN Xian-Jing. Influence of the Nucleon Hard Partons Distribution on J/Ψ Suppression in a GMC Framework[J]. Chin. Phys. Lett., 2010, 27(5): 111401
[3] LU Gong-Ru, WU Lei. Flavor-Changing Neutral-Current Production of t-c in Association with a Neutral Top-Higgs at LHC in the Topcolor-Assisted Technicolor Model[J]. Chin. Phys. Lett., 2010, 27(3): 111401
[4] WANG Shuai-Wei, HUANG Jin-Shu, LÜ, Lin-Xia . Bs→ φπ0Decay in the Extra Down-Type Quark Model[J]. Chin. Phys. Lett., 2010, 27(12): 111401
[5] YUE Chong-Xing, SU Xue-Song, MA Wei, ZHANG Ting-Ting . Production of Charged Higgs Boson Associated with Top Partner at the Large Hadron Collider[J]. Chin. Phys. Lett., 2010, 27(10): 111401
[6] ZENG Dai-Min, WU Xing-Gang, FANG Zhen-Yun. B-Meson Wavefunction by a Comparative Analysis of the B→π,K Transition Form Factors[J]. Chin. Phys. Lett., 2009, 26(2): 111401
[7] LIU Guo-Li. Top Quark Decay t → cbb- in Topcolor-Assisted Technicolor Models[J]. Chin. Phys. Lett., 2009, 26(10): 111401
[8] WANG Xue-Lei, XU Wen-Na, XIAO Zhen-Jun. Charged Top-Pion Production Associated with a Gluon Jet at the LHC[J]. Chin. Phys. Lett., 2008, 25(9): 111401
[9] WANG Shuai-Wei, SONG Tai-Ping, LÜ, Lin-Xia. B→ηK* and B→ΦKS Decays in the Two Higgs Doublet Model III[J]. Chin. Phys. Lett., 2008, 25(8): 111401
[10] ZHU Wei, SHEN Zhen-Qi, RUAN Jian-Hong. Can a Chaotic Solution in the QCD Evolution Equation Restrain High-Energy Collider Physics?[J]. Chin. Phys. Lett., 2008, 25(10): 111401
[11] GU Qin-Zhong, YANG Hua, WANG Xue-Lei. Probing the TC2 model via Production of Top Quark Pairs at Tevatron and LHC[J]. Chin. Phys. Lett., 2007, 24(6): 111401
[12] YANG Zhong-Juan, YAO Tao. Doubly Heavy Baryon Production at Polarized Photon Collider[J]. Chin. Phys. Lett., 2007, 24(12): 111401
[13] WANG Shuai-Wei, SONG Tai-Ping, LU Gong-Ru, ZHONG Zhi-Guo. Analysis of Bd→ψ KS CP Asymmetry in a Flavour Changing Z' Model[J]. Chin. Phys. Lett., 2007, 24(10): 111401
[14] LIU Yao-Bei, WANG Xue-Lei, CAO Yong-Hua. Single Production of Vector-Like Top Quark in the Littlest Higgs Model at TeV Energy e-γ Colliders[J]. Chin. Phys. Lett., 2007, 24(1): 111401
[15] YUE Chong-Xing, WANG Lei, WANG Li-Na, ZHANG Yan-Ming. Littlest Higgs Model and Spin Correlation of Top Quark Production at High Energy Linear e+ e- Colliders[J]. Chin. Phys. Lett., 2006, 23(9): 111401
Viewed
Full text


Abstract