REVIEW OF FINAL LEP RESULTS OR A TRIBUTE TO LEP
نویسندگان
چکیده
منابع مشابه
A Tribute to Lep
After a comment on the performance of LEP some highlights of the LEP1 and LEP2 physics programmes are reviewed. The talk concentrates on the precision measurements at the Z resonance, two fermion production above the Z, W + W − production, ZZ production, indirect limits on the Higgs mass, LEP contributions to the exploration of the CKM matrix, and on the LEP measurements of αs.
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Recent results on QCD studies in e + e − annihilations at LEP are presented. Data recorded by the LEP experiments at centre-of-mass energies between 91.2 to 206 GeV are included. The main topic is the measurement of αs from event shape variables and associated aspects like the energy evolution or non-perturbative power-law corrections. These 'standard' measurements are complemented by new deter...
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In the last decade, the LEP and SLD experiments played a central role in the study of B hadrons (hadrons containing a b quark). New B hadrons have been observed (B s , Λb, Ξb and B ) and their production and decay properties have been measured. In this paper we will focus on measurements of the CKM matrix elements : |Vcb|, |Vub|, |Vtd| and |Vts|. We will show how all these measurements, togethe...
متن کاملNaturalness Implications of LEP Results
We analyse the fine-tuning constraints arising from absence of superpartners at LEP, without strong universality assumptions. We show that such constraints do not imply that charginos or neutralinos should have been seen at LEP, contrary to the usual arguments. They do however imply relatively light gluinos (
متن کاملPrecision Tests of the Standard Model at Lep and Results from the 4-jet Final State at Lep 1.5
First a short review is made of current limits on the Standard Model as derived from the electroweak sector concerning the Z boson at LEP. The second part of the paper presents an analysis of the four jet nal state at ALEPH, this analysis was performed on LEP data taken at centre of mass energies of 130 and 136 GeV. The results presented here are from approximate totals 1 of 12.3 millionhadroni...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2002
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x02012727