Implications of a 300-500 GeV$/c^2$ $Z$' boson on $p\bar{p}$ collider data at $\sqrt{s}=1.8$ TeV

A. Bodek; U. Baur

doi:doi:10.1007/s100520100778

EPJ

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2022 Impact factor 4.4

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 )

Abstract
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 A_b ( $2.7 \sigma$ ) 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.