Closing the low-mass axigluon window

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作者
Doncheski, MA [1 ]
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[1] Penn State Univ, Dept Phys, Mont Alto, PA 17237 USA
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O412 [相对论、场论]; O572.2 [粒子物理学];
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摘要
In this report, I will present the current status of the low-mass axigluon. The axigluon is a massive, color octet, axial vector boson, predicted in, e.g., chiral color models and some technicolor models, with a mass of order the electroweak scale. Axigluons with a mass larger than about 125 GeV to nearly 1 TeV can be eliminated by di-jet production at hadron colliders like the TEVATRON, but a low-mass window exists that the di-jet search can not probe. Y decays can rule out axigluons with a mass up to 25 GeV, and low energy e(+)e(-) (PEP and PETRA) can rule out axigluons with a mass up to 50 GeV using a measurement of R. Top production at the TEVATRON disfavors a light axigluon. A measurement of R at LEP strongly disfavors a light axigluon, and rules out an axigluon with mass < 365 GeV.
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页码:9 / 16
页数:8
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