Parameterization of general Z-γ-Z’ mixing in an electroweak chiral theory

ZHANG Ying; WANG Qing

doi:10.1088/1674-1137/36/4/001

Chinese Physics C> 2012, Vol. 36> Issue(4) : 298-306 DOI: 10.1088/1674-1137/36/4/001

Parameterization of general Z-γ-Z’ mixing in an electroweak chiral theory

ZHANG Ying ,
WANG Qing

Abstract
HTML
Reference
Related

PDF

Abstract：
A new general parameterization with eight mixing parameters among Z, γ and an extra neutral gauge boson Z’ is proposed and subjected to phenomenological analysis. We show that in addition to the conventional Weinberg angle θ_W, there are seven other phenomenological parameters, G’,ξ,η,θ_l,θ_r, r and l, for the most general Z-γ-Z’ mixings, in which parameter G’ arises due to the presence of an extra Stueckelberg- type mass coupling. Combined with the conventional Z-Z’ mass mixing angle θ’, the remaining six parameters, ξ,η,θ_l-θ’,θ_r-θ’, r and l, are caused by general kinetic mixing. In all eight phenomenological parameters, θ_W, G’,ξ,η,θ_l,θ_r, r and l, we can determine the Z-Z’ mass mixing angle θ’ and the mass ratio M_Z=M_Z’ . The Z-γ-Z’ mixing that we discuss are based on the model-independent description of the extended electroweak chiral Lagrangian (EWCL) previously proposed by us. In addition, we show that there are eight corresponding independent theoretical coe cients in our EWCL, which are fully xed by our eight phenomenological mixing parameters. We further nd that the experimental measurability of these eight parameters does not rely on the extended neutral current for Z’, but depends on the Z-Z’ mass ratio.

References

[1]

Langacker P et al. Rev. Mod. Phys., 2008, 81: 11992 Langacker P. arXiv:0911.42943 ZHANG Y et al. JHEP, 2008, 03: 0474 Holdom B. Phys. Lett. B, 1986, 166: 196; 1991, Phys. Lett.B, 259: 3295 Feldman D et al. Phys. Rev. D, 2007, 75: 115001; Phys. Rev. D, 2007, 75: 023503; Phys. Rev. D, 2010, 81: 0950176 ZHANG Y et al. JHEP, 2009, 07: 0127 Appelquist T et al. Phys. Rev. D, 1993, 48: 32358 Krs B et al. Phys. Lett. B, 2004, 586: 366

[1]	Kai-Wen Li , Xiu-Lei Ren , Li-Sheng Geng , Bing-Wei Long . Leading order relativistic hyperon-nucleon interactions in chiral effective field theory. Chinese Physics C, 2018, 42(1): 014105. doi: 10.1088/1674-1137/42/1/014105
[2]	Yan-Ling Li , Yong-Liang Ma , Mannque Rho . Nuclear axial currents from scale-chiral effective field theory. Chinese Physics C, 2018, 42(9): 094102. doi: 10.1088/1674-1137/42/9/094102
[3]	Qing-Hong Cao , Bin Yan , Jiang-Hao Yu , Chen Zhang . A general analysis of Wtb anomalous couplings. Chinese Physics C, 2017, 41(6): 063101. doi: 10.1088/1674-1137/41/6/063101
[4]	Hao Zhang , Qibo Chen . Chiral geometry in multiple chiral doublet bands. Chinese Physics C, 2016, 40(2): 024102. doi: 10.1088/1674-1137/40/2/024102
[5]	Jue Zhang , Shun Zhou . Electroweak vacuum stability and diphoton excess at 750 GeV. Chinese Physics C, 2016, 40(8): 081001. doi: 10.1088/1674-1137/40/8/081001
[6]	Hong-na Li , P. Wang . Chiral extrapolation of nucleon axial charge g_A in effective field theory. Chinese Physics C, 2016, 40(12): 123106. doi: 10.1088/1674-1137/40/12/123106
[7]	PENG Jin-Song , ZHOU Li-Juan , MENG Cheng-Ju , PAN Ji-Huan , MA Wei-Xing , YUAN Tong-Quan . Ratio of a strange quark mass m_s to up or down quark mass m_u,d predicted by a quark propagator in the frameworkof the chiral perturbation theory. Chinese Physics C, 2013, 37(4): 043101. doi: 10.1088/1674-1137/37/4/043101
[8]	ZHOU Ling-Li , MA Bo-Qiang . New theory of Lorentz violation from a general principle. Chinese Physics C, 2011, 35(11): 987-991. doi: 10.1088/1674-1137/35/11/001
[9]	YANG Xiu-Yi , FENG Tai-Fu . Two loop electroweak corrections from heavy fermions to b→s+γ. Chinese Physics C, 2010, 34(12): 1797-1811. doi: 10.1088/1674-1137/34/12/004
[10]	. Lowest-lying spin-1/2 and spin-3/2 baryon magnetic moments in chiral perturbation theory. Chinese Physics C, 2010, 34(9): 1307-1311. doi: 10.1088/1674-1137/34/9/030
[11]	D. Rozpedzik , J. Golak . Low energy electromagnetic processes based on the chiral effective field theory approach. Chinese Physics C, 2010, 34(9): 1393-1395. doi: 10.1088/1674-1137/34/9/051
[12]	DONG Jian-Min , ZHANG Hong-Fei , WANG Yan-Zhao , ZUO Wei , SU Xin-Ning , LI Jun-Qing . α-decay half-lives of superheavy nuclei and general predictions. Chinese Physics C, 2009, 33(8): 633-638. doi: 10.1088/1674-1137/33/8/007
[13]	DAI Lian-Rong , LIU Jia , ZHANG Dan . Multiquark states and the mixing of scalar meson. Chinese Physics C, 2009, 33(12): 1397-1400. doi: 10.1088/1674-1137/33/12/064
[14]	N. Neri (for the BABAR Collaboration) . Charm mixing from BABAR. Chinese Physics C, 2008, 32(6): 463-469. doi: 10.1088/1674-1137/32/6/012
[15]	Hou Defu , Li Jiarong . Self-Consistent Investigation of Electroweak Transition at High Temperature. Chinese Physics C, 1994, 18(S4): 367-374.
[16]	Yu Qingchang . Transformation Groups in Beam Optics (I): General Theory. Chinese Physics C, 1993, 17(S3): 231-237.
[17]	Jing Sicong , Ruan Jie . Bjorken-Johnson-Low Technique and a Perturbative Study on Chiral Anomaly in Pure Abelian Coset Gauge Field Theory. Chinese Physics C, 1991, 15(S2): 141-152.
[18]	Xu Xiaoming , Qiu Xijun . A Chiral Quark-Soliton Model Theory for Nuclear Force. Chinese Physics C, 1990, 14(S4): 381-389.
[19]	Luo Xiangqian , Chen Qizhou , Guo Shuohong . Vacuum State of 2+1 Dimensional SU(2) Lattice Gauge Theory With Fermions and Spontaneous Chiral Symmetry Breaking. Chinese Physics C, 1989, 13(S2): 157-164.
[20]	Jin Changhao . Down-Quark Masses and Flavor Mixing. Chinese Physics C, 1988, 12(S1): 59-68.

Access

Get Citation

ZHANG Ying and WANG Qing. Parameterization of general Z-γ-Z’ mixing in an electroweak chiral theory[J]. Chinese Physics C, 2012, 36(4): 298-306. doi: 10.1088/1674-1137/36/4/001

ZHANG Ying and WANG Qing. Parameterization of general Z-γ-Z’ mixing in an electroweak chiral theory[J]. Chinese Physics C, 2012, 36(4): 298-306. doi: 10.1088/1674-1137/36/4/001 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2011-07-04
Revised: 2011-08-05

Article Metric

Article Views(2231)
PDF Downloads(390)
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

Parameterization of general Z-γ-Z’ mixing in an electroweak chiral theory

ZHANG Ying
WANG Qing

Received Date: 2011-07-04
Accepted Date: 2011-08-05
Available Online: 2012-04-05

Abstract: A new general parameterization with eight mixing parameters among Z, γ and an extra neutral gauge boson Z’ is proposed and subjected to phenomenological analysis. We show that in addition to the conventional Weinberg angle θ_W, there are seven other phenomenological parameters, G’,ξ,η,θ_l,θ_r, r and l, for the most general Z-γ-Z’ mixings, in which parameter G’ arises due to the presence of an extra Stueckelberg- type mass coupling. Combined with the conventional Z-Z’ mass mixing angle θ’, the remaining six parameters, ξ,η,θ_l-θ’,θ_r-θ’, r and l, are caused by general kinetic mixing. In all eight phenomenological parameters, θ_W, G’,ξ,η,θ_l,θ_r, r and l, we can determine the Z-Z’ mass mixing angle θ’ and the mass ratio M_Z=M_Z’ . The Z-γ-Z’ mixing that we discuss are based on the model-independent description of the extended electroweak chiral Lagrangian (EWCL) previously proposed by us. In addition, we show that there are eight corresponding independent theoretical coe cients in our EWCL, which are fully xed by our eight phenomenological mixing parameters. We further nd that the experimental measurability of these eight parameters does not rely on the extended neutral current for Z’, but depends on the Z-Z’ mass ratio.