2020 Impact factor 4.590
Particles and Fields

Eur. Phys. J. C 21, 607-611 (2001)
DOI: 10.1007/s100520100778

Implications of a 300-500 GeV/c2 Z' boson on $p\bar{p}$ collider data at $\sqrt{s}=1.8$ TeV

A. Bodek1 and U. Baur2

1  Departmet of Physics and Astronomy, University of Rochester, Rochester, NY 14627-0171, USA
2  Department of Physics, State University of New York at Buffalo, Buffalo, NY, 14260, USA

(Received: 7 August 2001 / Published online: 19 September 2001 -© Springer-Verlag / Società Italiana di Fisica 2001 )

Recent analyses of precision low energy electroweak data indicate that the deviation from the Standard Model predictions of the measurement of atomic parity violation ( $2.3 \sigma$), the effective number of massless neutrinos ($2 \sigma$), and Ab ( $2.7 \sigma$) could be better described if the existence of an extra Z' neutral gauge boson is assumed. We investigate the implications of a 300-00 GeV/c2 extra Z' on current $p\bar{p}$ collider data at $\sqrt{s}=1.8$ TeV, including the forward-backward charge asymmetry for very high mass e+e- pairs, and the invariant mass specstrum of high mass e+e-, $\mu^+\mu^-$, $t\overline{t}$ and $b\overline{b}$ pairs. For example, a 500 GeV/c2 Z' with a total production cross section of $\approx 3 pb$ and enhanced coupling to the third generation, better describes both the low energy and the Tevatron data.

© Società Italiana di Fisica, Springer-Verlag 2001