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Phys. Rev. D 63, 074013 (2001) [7 pages]

Constraints on gauged B-3Lτ and related theories

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Lay Nam Chang1,*, Oleg Lebedev1,†, Will Loinaz1,2,‡, and Tatsu Takeuchi1,§
1Institute for Particle Physics and Astrophysics, Physics Department, Virginia Tech, Blacksburg, Virginia 24061
2Department of Physics, Amherst College, Amherst, Massachusetts 01002

Received 11 October 2000; published 7 March 2001

We consider extensions of the standard model with an extra U(1) gauge boson that couples to B-(αLe+βLμ+γLτ) with α+β+γ=3. We show that the extra gauge boson necessarily mixes with the Z, leading to potentially significant corrections to the Zff̅ vertex. The constraints on the size of this correction imposed by the Z-pole data from CERN LEP and SLD are derived.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.63.074013
DOI:
10.1103/PhysRevD.63.074013
PACS:
12.15.Lk, 12.60.Cn, 13.38.Dg

*Electronic address: laynam@vt.edu

†Electronic address: olebedev@vt.edu

‡Electronic address: loinaz@alumni.princeton.edu

§Electronic address: takeuchi@vt.edu

 
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