Global Electroweak Fit and Its Implication for Z'

Global Electroweak Fit and Its Implication for Z'

导出

摘要 Among the Z-pole observables, AFB^（0,b） and Ae display moderately large standard deviations from the Standard Model predictions. This result can be interpreted as independent experimental evidence for new physics beyond the SM, even if the 125 GeV Higgs-like boson at the LHC is ultimately confirmed as the SM Higgs. A recalculated global electroweak fit with a model-independent Z＇ shows that Z＇ can simultaneously suppress AFB（0,b） and Ae at the Z-pole, and reduce the largest deviation from 2.6σ in SM to 1.0σ in our scenario. The Z＇ fitting results also support a negative S parameter.

作者张盈蒋邵周王青

机构地区 School of Science College of Physics Science and Technology Department of Physics Center for High Energy Physics

出处《Communications in Theoretical Physics》 SCIE CAS CSCD 2014年第6期729-734,共6页 理论物理通讯（英文版）

基金 Supported by National Natural Science Foundation of China(NSFC)under Grant Nos.11147192,11075085,and 11005084 Specialized Research Fund for the Doctoral Program of High Education of China No.20110002110010 Fundamental Research Funds for the Central Universities Scientific Research Foundation of Guangxi University under Grant No.XBZ100686

关键词 global fit Z＇ anomaly free chiral effective theory 弱电空军基地标准模型标准偏差实验证据最大偏差物理学 SM

分类号 O41 [理学—理论物理]

引文网络
相关文献

参考文献14

1M. Shaposhnikov, arXiv:0708.3550[hep-th].
2The LEP Electroweak Working Group, Phys. Rep. 427 (2006) 257.
3J. Beringer, et al., (Particle Data Group), Phys. Rev. D 86 (2012) 010001.
4P. Langacker, Rev. Mod. Phys. 81 (2008) 1199.
5P. Langacker, G. Paz, L.T. Wang, and I. Yavin, Phys. Rev. Lett. 100 (2008) 041802.
6J. Erler, P. Langacker, S. Munir, and E. Rojas, J. High Energy Phys. 08 (2009) 017.
7F. del Aguila, J. de Bias, and M. Perez-Victoria, J. High Energy Phys. 09 (2010) 033.
8J. Heeck and W. Rodejohann, arXiv:1107.5238[hep-ph].
9R. Dermisek, S.G. Kim, and A. Raval, arXiv:1201. 0315[hep-ph].
10J.L. Hewett and T.G. Rizzo, Phys. Rep. 183 (1989) 193.

1J. Erler,A. Freitas.ELECTROWEAK MODEL AND CONSTRAINTS ON NEW PHYSICS[J].Chinese Physics C,2016,40(10):151-171.
2张盈,王青.Parameterization of general Z-γ-Z′mixing in an electroweak chiral theory[J].Chinese Physics C,2012,36(4):298-306.
3WU Ning.New Electroweak Model Without a Higgs Particle[J].Communications in Theoretical Physics,2002(11):577-582.
4ZHANG Hong-Hao,YAN Wen-Bin,J.K. Parry,LI Xue-Song.New Terms for Compact Form of Electroweak Chiral Lagrangian[J].Communications in Theoretical Physics,2008,49(3):723-724.
5WANG Zhi-Min WANG Qing.Derivation of the Bosonic Part of the Electroweak Chiral Lagrangian from a General Underlying Technicolor Theory[J].Communications in Theoretical Physics,2001(10):417-426.
6郭星导,张印杰,赵树民,冯太傅,袁煦浩,李学潜.Top quark forward-backward asymmetry in the little Higgs model[J].Chinese Physics C,2014,38(11):16-21.
7K.A.Olive,K.Agashe,C.Amsler,M.Antonelli,J.-F.Arguin,D.M.Asner,H.Baer,H.R.Band,R.M.Barnett,T.Basaglia,C.W.Bauer,J.J.Beatty,V.I.Belousov,J.Beringer,G.Bernardi,S.Bethke,H.Bichsel,O.Biebe,E.Blucher,S.Blusk,G.Brooijmans,O.Buchmueller,V.Burkert,M.A.Bychkov,R.N.Cahn,M.Carena,A.Ceccucci,A.Cerr,D.Chakraborty,M.-C.Chen,R.S.Chivukula,K.Copic,G.Cowan,O.Dahl,G.D'Ambrosio,T.Damour,D.de Florian,A.de Gouvea,T.DeGrand,P.de Jong,G.Dissertor,B.A.Dobrescu,M.Doser,M.Drees,H.K.Dreiner,D.A.Edwards,S.Eidelman,J.Erler,V.V.Ezhela,W.Fetscher,B.D.Fields,B.Foster,A.Freitas,T.K.Gaisser,H.Gallagher,L.Garren,H.-J.Gerber,G.Gerbier,T.Gershon,T.Gherghetta,S.Golwala,M.Goodman,C.Grab,A.V.Gritsan,C.Grojean,D.E.Groom,M.Grnewald,A.Gurtu,T.Gutsche,H.E.Haber,K.Hagiwara,C.Hanhart,S.Hashimoto,Y.Hayato,K.G.Hayes,M.Heffner,B.Heltsley,J.J.Hernandez-Rey,K.Hikasa,A.Hocker,J.Holder,A.Holtkamp,J.Huston,J.D.Jackson,K.F.Johnson,T.Junk,M.Kado,D.Karlen,U.F.Katz,S.R.Klein,E.Klempt,R.V.Kowalewski,F.Krauss,M.Kreps,B.Krusche,Yu.V.Kuyanov,Y.Kwon,O.Lahav,J.Laiho,P.Langacker,A.Liddle,Z.Ligeti,C.-J.Lin,T.M.Liss,L.Littenberg,K.S.Lugovsky,S.B.Lugovsky,F.Maltoni,T.Mannel,A.V.Manohar,W.J.Marciano,A.D.Martin,A.Masoni,J.Matthews,D.Milstead,P.Molaro,K.Monig,F.Moortgat,M.J.Mortonson,H.Murayama,K.Nakamura,M.Narain,P.Nason,S.Navas,M.Neubert,P.Nevski,Y.Nir,L.Pape,J.Parsons,C.Patrignani,J.A.Peacock,M.Pennington,S.T.Petcov,Kavli IPMU,A.Piepke,A.Pomarol,A.Quadt,S.Raby,J.Rademacker,G.Raffel,B.N.Ratcliff,P.Richardson,A.Ringwald,S.Roesler,S.Rolli,A.Romaniouk,L.J.Rosenberg,J,L.Rosner,G.Rybka,C.T.Sachrajda,Y.Sakai,G.P.Salam,S.Sarkar,F.Sauli,O.Schneider,K.Scholberg,D.Scott,V.Sharma,S.R.Sharpe,M.Silari,T.Sjostrand,P.Skands,J.G.Smith,G.F.Smoot,S.Spanier,H.Spieler,C.Spiering,A.Stahl,T.Stanev,S.L.Stone,T.Sumiyoshi,M.J.Syphers,F.Takahashi,M.Tanabashi,J.Terning,L.Tiator,M.Titov,N.P.Tkachenko,N.A.Tornqvist,D.Tovey,G.Valencia,G.Venanzoni,M.G.Vincter,P.Vogel,A.Vogt,S.P.Wakely,W.Walkowiak,C.W.Walter,D.R.Ward,G.Weiglein,D.H.Weinberg,E.J.Weinberg,M.White,L.R.Wiencke,C.G.Wohl,L.Wolfenstein,J.Womersley,C.L.Woody,R.L.Workman,A.Yamamoto,W.-M.Yao,G.P.Zeller,O.V.Zenin,J.Zhang,R.-Y.Zhu,F.Zimmermann,P.A.Zyla,G.Harper,V.S.Lugovsky,P.Schaffner.ELECTROWEAK MODEL AND CONSTRAINTS ON NEW PHYSICS[J].Chinese Physics C,2014,38(9):139-160. 被引量：1
8于游,岳崇兴,夏昀.Pair Production of the Doubly Charged Leptons via Electroweak Vector Boson Fusion at the Large Hadron Collider[J].Chinese Physics Letters,2014,31(2):25-29. 被引量：1
9泰川.几克反物质就能毁灭地球[J].党政论坛,2009(2):46-46.
10卜建平.Calculation of Decay μ→eγ in R_ζ Gauge in a Model of Electroweak-Scale Right-Handed Neutrinos[J].Communications in Theoretical Physics,2010(4):703-710.

Communications in Theoretical Physics

2014年第6期

浏览历史

内容加载中请稍等...

Global Electroweak Fit and Its Implication for Z'

参考文献14

相关作者

相关机构

相关主题

浏览历史