A “no-lose” measurement of the hadronic and of the leptonic Z widths

We show that a high precision measurement of the full hadronic, of the leptonic Z0 widths and of their ratio in the forthcoming run at LEP 1 might already allow, under realistic experimental conditions, to either discover clear evidence for New Physics of well identifiable origin or, at least, to se...

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Bibliographic Details
Published in:Physics letters. B 1990-04, Vol.240 (3-4), p.492-496
Main Authors: Girardi, G., Hollik, W., Verzegnassi, C.
Format: Article
Language:English
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Summary:We show that a high precision measurement of the full hadronic, of the leptonic Z0 widths and of their ratio in the forthcoming run at LEP 1 might already allow, under realistic experimental conditions, to either discover clear evidence for New Physics of well identifiable origin or, at least, to set stringent bounds on the top mass valid in an extended, not “minimal”, standard model independently of the value of the ϱ parameter.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(90)91136-Y