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Z and the Appelquist–Carrazzone decoupling

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Abstract

We consider the electroweak theory with an additional neutral vector boson Z at one loop. We propose a renormalization scheme which makes the decoupling of heavy Z effects manifest. The proposed scheme justifies the usual procedure of performing fits to the electroweak data by combining the full SM loop corrections to observables with the tree-level corrections due to the extended gauge structure. Using this scheme we discuss in the model with extra an U(1) group factor one-loop results for the ρ parameters defined in several different ways.

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References

  1. N. Arkani-Hamed, A.G. Cohen, H. Georgi, Phys. Lett. B 513, 232 (2001) [arXiv:hep-ph/0105239]; N. Arkani-Hamed, A.G. Cohen, E. Katz, A.E. Nelson, T. Gregoire, J.G. Wacker, JHEP 0208, 021 (2002) [arXiv:hep-ph/0206020]; N. Arkani-Hamed, A.G. Cohen, E. Katz, A.E. Nelson, JHEP 0207, 034 (2002) [arXiv:hep-ph/0206021]; M. Schmaltz, JHEP 0408, 056 (2004) [arXiv:hep-ph/0407143]

    Article  MATH  MathSciNet  ADS  Google Scholar 

  2. A. Birkedal, Z. Chacko, M.K. Gaillard, JHEP 0410, 036 (2004) [arXiv:hep-ph/0404197]

    Article  MathSciNet  ADS  Google Scholar 

  3. P.H. Chankowski, A. Falkowski, S. Pokorski, J. Wagner, Phys. Lett. B 598, 252 (2004) [arXiv:hep-ph/0407242]

    Article  ADS  Google Scholar 

  4. G. Marandella, C. Schappacher, A. Strumia, Phys. Rev. D 72, 035014 (2005) [arXiv:hep-ph/0502096]

    Article  ADS  Google Scholar 

  5. F. Jegerlehner, in Prog. Part. Nucl. Phys. 27, 1 (1991) (books file: QCD111:P71:v.27)

    Article  ADS  Google Scholar 

  6. M. Czakon, J. Gluza, F. Jegerlehner, M. Zrałek, Eur. J. Phys. C 13, 275 (2000)

    Article  ADS  Google Scholar 

  7. M.C. Chen, S. Dawson, T. Krupovnickas, arXiv:hep- ph/0504286; M.C. Chen, S. Dawson, Phys. Rev. D 70, 015003 (2004) [arXiv:hep-ph/0311032]

    Article  ADS  Google Scholar 

  8. G. Degrassi, A. Sirlin, Phys. Rev. D 40, 3066 (1989)

    Article  ADS  Google Scholar 

  9. F. del Aguila, M. Masip, M. Perez-Victoria, Nucl. Phys. B 456, 531 (1995) [arXiv:hep-ph/9507455]

    Article  ADS  Google Scholar 

  10. F. del Aguila, G.D. Coughlan, M. Quiros, Nucl. Phys. B 307, 633 (1988)

    Article  ADS  Google Scholar 

  11. M. Luo, Y. Xiao Phys. Lett. B 555, 279 (2003) [arXiv:hep-ph/0212152]

    Article  MATH  ADS  Google Scholar 

  12. K.S. Babu, C.F. Kolda, J. March-Russell, Phys. Rev. D 57, 6788 (1998) [arXiv:hep-ph/9710441]

    Article  ADS  Google Scholar 

  13. T. Appelquist, B.A. Dobrescu, A.R. Hopper, Phys. Rev. D 68, 035012 (2003) [arXiv:hep-ph/0212073]

    Article  ADS  Google Scholar 

  14. M. Carena, A. Daleo, B.A. Dobrescu, T.M.P. Tait, Phys. Rev. D 70, 093009 (2004) [arXiv:hep-ph/0408098]; D.A. Demir, G.L. Kane, T.T. Wang, Phys. Rev. D 72, 015012 (2005) [arXiv:hep-ph/0503290]

    Article  ADS  Google Scholar 

  15. R. Barbieri, Lecture given at the CCAST Symposium on Particle Physics at the Fermi Scale, Beijing, China, May–June 1993, published in CCAST Symposium, 163 (1993)

  16. S. Pokorski, “Gauge field theories”, 2nd Edition (Cambridge University Press, 2000)

  17. P.H. Chankowski, P. Wasowicz, Eur. Phys. J C 23, 249 (2002)

    Article  ADS  Google Scholar 

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Chankowski, P., Pokorski, S. & Wagner, J. Z and the Appelquist–Carrazzone decoupling. Eur. Phys. J. C 47, 187–205 (2006). https://doi.org/10.1140/epjc/s2006-02537-3

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  • DOI: https://doi.org/10.1140/epjc/s2006-02537-3

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