1. Particle Data Group collaboration, J. Beringer et al., Review of Particle Physics (RPP), Phys. Rev. D 86 (2012) 010001 [ INSPIRE ].
2. G. Altarelli, B. Mele and M. Ruiz-Altaba, Searching for New Heavy Vector Bosons in p p ¯ $$ p\overline{p} $$ Colliders, Z. Phys. C 45 (1989) 109 [Erratum ibid. C 47 (1990) 676] [ INSPIRE ].
3. K. Hsieh, K. Schmitz, J.-H. Yu and C.-P. Yuan, Global Analysis of General SU(2) × SU(2) × U(1) Models with Precision Data, Phys. Rev. D 82 (2010) 035011 [ arXiv:1003.3482 ] [ INSPIRE ].
4. T. Jezo, M. Klasen and I. Schienbein, LHC phenomenology of general SU(2) × SU(2) × U(1) models, Phys. Rev. D 86 (2012) 035005 [ arXiv:1203.5314 ] [ INSPIRE ].
5. Q.-H. Cao, Z. Li, J.-H. Yu and C.P. Yuan, Discovery and Identification of W’ and Z’ in SU(2) × SU(2) × U(1) Models at the LHC, Phys. Rev. D 86 (2012) 095010 [ arXiv:1205.3769 ] [ INSPIRE ].