Production of flavor-changing gauge bosons from <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">E</mi></mrow><mrow><mn>6</mn></mrow></msub></mrow></math> at <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>e</mi></mrow><mrow><mo>+</mo></mrow></msup></mrow></math><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi>e</mi></mrow><mrow><mi mathvariant="normal">−</mi></mrow></msup></mrow></math> and hadron colliders

Thomas G. Rizzo

doi:10.1103/PhysRevD.38.71

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Production of flavor-changing gauge bosons from $E_{6}$ at $e^{+}$ $e^{-}$ and hadron colliders

Thomas G. Rizzo

Ames Laboratory and Department of Physics, Iowa State University, Ames, Iowa 50011

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Phys. Rev. D 38, 71 – Published 1 July, 1988

DOI: https://doi.org/10.1103/PhysRevD.38.71

Abstract

We have studied the production and corresponding decay signatures of flavor-changing neutral gauge bosons which can arise when $E_{6}$ breaks to give a new low-energy gauge group SU(2 $)_{I}$ at $e^{+}$ $e^{-}$ and hadron colliders. The non-Hermitian gauge bosons ( $W_{I}$ ) in this group couple conventional fermions (e.g., e, $d^{c}$ ) to their exotic partners (E, $h^{c}$ ) in the 27 representation of $E_{6}$ . The dominant mechanism for $W_{I}$ production in hadron-hadron collisions at the parton level is found to be g+d→ $W_{I}$ +h, which leads to a substantial cross section at both the Superconducting Super Collider and the CERN Large Hadron Collider as well as distinct decay signatures. Pair production of $W_{I}$ at high-energy $e^{+}$ $e^{-}$ colliders is found to be sensitive to detailed cancellations between the different amplitudes. Sizable production cross sections of order 1 pb are obtained.

References (8)

For a review of the recent work on superstring-inspired E $_{6}$ phenomenology, see T. G. Rizzo and J. L. Hewett, Phys. Rep. (unpublished), and references therein.
M. B. Green and J. H. Schwarz, Phys. Lett. 149B, 117 (1984); ibid. 151B, 121 (1985).
D. London and J. Rosner, Phys. Rev. D 34, 1530 (1986); S. Godfrey, Phys. Lett. B 195, 78 (1987).
E. Ma, Phys. Rev. D 36, 274 (1987); D. S. Babu, X-G. He and E. Ma, ibid. 36, 878 (1987); J. F. Gunion et al., in From Colliders to Super Colliders, proceedings of the Workshop, Madison, Wisconsin, 1987, edited by V. Barger and F. Halzen (World Scientific, Singapore, 1987).
U. Amaldi et al., Phys. Rev. D 36, 1385 (1987).
D. Duke and J. Owens, Phys. Rev. D 30, 49 (1984).
V. Barger, N. G. Deshpande, and J. F. Gunion, in Proceedings of the Summer Study on the Physics of the Superconducting Super Collider, Snowmass, Colorado, 1986, edited by R. Donaldson and J. Marx (Division of Particles and Fields of the APS, New York, 1987).
See, for example, W. Alles, Ch. Boyer and A. J. Buras, Nucl. Phys. B119, 125 (1975).

[c1] For a review of the recent work on superstring-inspired E $_{6}$ phenomenology, see T. G. Rizzo and J. L. Hewett, Phys. Rep. (unpublished), and references therein.

[c2] M. B. Green and J. H. Schwarz, Phys. Lett. 149B, 117 (1984); ibid. 151B, 121 (1985).

[c3] D. London and J. Rosner, Phys. Rev. D 34, 1530 (1986); S. Godfrey, Phys. Lett. B 195, 78 (1987).

[c4] E. Ma, Phys. Rev. D 36, 274 (1987); D. S. Babu, X-G. He and E. Ma, ibid. 36, 878 (1987); J. F. Gunion et al., in From Colliders to Super Colliders, proceedings of the Workshop, Madison, Wisconsin, 1987, edited by V. Barger and F. Halzen (World Scientific, Singapore, 1987).

[c5] U. Amaldi et al., Phys. Rev. D 36, 1385 (1987).

[c6] D. Duke and J. Owens, Phys. Rev. D 30, 49 (1984).

[c7] V. Barger, N. G. Deshpande, and J. F. Gunion, in Proceedings of the Summer Study on the Physics of the Superconducting Super Collider, Snowmass, Colorado, 1986, edited by R. Donaldson and J. Marx (Division of Particles and Fields of the APS, New York, 1987).

[c8] See, for example, W. Alles, Ch. Boyer and A. J. Buras, Nucl. Phys. B119, 125 (1975).

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Production of flavor-changing gauge bosons from $E_{6}$ at $e^{+}$ $e^{-}$ and hadron colliders

Abstract

See Also

Addendum to ‘‘Production of flavor-changing gauge bosons from $E_{6}$ at $e^{+}$ $e^{-}$ and hadron colliders’’: Single production in $e^{+}$ $e^{-}$ annihilation

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Production of flavor-changing gauge bosons from E6 at e+e− and hadron colliders

Abstract

See Also

Addendum to ‘‘Production of flavor-changing gauge bosons from E6 at e+e− and hadron colliders’’: Single production in e+e− annihilation

References (8)

Production of flavor-changing gauge bosons from $E_{6}$ at $e^{+}$ $e^{-}$ and hadron colliders

Addendum to ‘‘Production of flavor-changing gauge bosons from $E_{6}$ at $e^{+}$ $e^{-}$ and hadron colliders’’: Single production in $e^{+}$ $e^{-}$ annihilation