Heavy Quark Production at SLC and LEP.
Title | Heavy Quark Production at SLC and LEP. PDF eBook |
Author | |
Publisher | |
Pages | 21 |
Release | 1990 |
Genre | |
ISBN |
Experiments at SLC and LEP have made preliminary measurements of the relative partial widths of the c and b quarks. Using D* tagging, DELPHI has found R{sub c}{bar c}{triple bond}/[Gamma]{sub c}{bar c}/[Gamma]{sub hadr.} = 0.162 {plus minus} 0.032 {plus minus} 0.031, in good agreement with the Standard Model value of 0.171. ALEPH has used semileptonic decays of charm to obtain 0.148 {plus minus} 0.044 {sub -0.038}{sup +0.045}. Three experiments have used semileptonic [Beta] decays to measurement R{sub b}{bar b}: R{sub b}{bar b} = 0.23 {plus minus} 0.10 (Mark II), 0.218 {plus minus} 0.010 {plus minus} 0.021 (L3), and 0.220 {plus minus} 0.016 {plus minus} 0.024 (ALEPH). All agree well with the expected value of 0.217. The uncertainty in branching ratios of c and b hadrons is the largest systematic error in all of the results. Future LEP measurements of the branching ratios may reduce the errors. R{sub b}{bar b} will also be measured with different, and possibly lower, systematic errors by Mark II using impact parameter tagging.
QCD and heavy quark physics at LEP and SLC
Title | QCD and heavy quark physics at LEP and SLC PDF eBook |
Author | Ahmed Ali |
Publisher | |
Pages | |
Release | 1986 |
Genre | |
ISBN |
QCD and Heavy Quark Physics at LEP and SLC
Title | QCD and Heavy Quark Physics at LEP and SLC PDF eBook |
Author | A. Ali |
Publisher | |
Pages | 28 |
Release | 1986 |
Genre | |
ISBN |
The Legacy of LEP and SLC
Title | The Legacy of LEP and SLC PDF eBook |
Author | F.-L. Navarria |
Publisher | |
Pages | 388 |
Release | 2002 |
Genre | Astrophysics |
ISBN |
Heavy Quark Production and Hadronisation at LEP
Title | Heavy Quark Production and Hadronisation at LEP PDF eBook |
Author | Frank Fiedler |
Publisher | |
Pages | 156 |
Release | 1999 |
Genre | |
ISBN |
Heavy Flavours and High-Energy Collisions in the 1–100 TeV Range
Title | Heavy Flavours and High-Energy Collisions in the 1–100 TeV Range PDF eBook |
Author | A. Ali |
Publisher | Springer Science & Business Media |
Pages | 626 |
Release | 2013-11-21 |
Genre | Science |
ISBN | 1468499815 |
The present volume is based on the proceedings of the 6th and 7th INFN ELOISATRON project workshops, held at the Centro di Cultura Scientifica "Et tore Majorana" CCSEM, Erice-Trapani, Sicily, Italy, in the period June 10-27, 1988. The topics of the two workshops were, respectively: - Heavy Flavours: Status and Perspectives, and - Novel Features of High Energy Collisions in 1-100 TeV Region. They were attended by sixty-three physicists. The two workshops were followed by a meeting of the INFN ELOISATRON working group, also held at the CCSEM in the period October 7-15, 1988 in which twenty-five physicists participated. Since there was quite a bit of overlap among speakers, participants and the topics covered at the three meetings, we have decided to issue ajoint proceeding, with the first part entitled: Heavy Flavour Physics, and the second: High Energy Physics with 1-100 Te V Proton Beams. Some of the reports included in this volume have been contributed by the INFN ELOISATRON working group members. The first. part of these proceedings deals mostly with the presentation and inter pretation of results in t.he so-called fiavour physics sector. New results, which have become available in the last three years from experiments involving kaons, charmed and beauty hadrons, and searches for the still missing top quark at the present and fothcoming colliders are topics of major interest. here. The contributions in this part are organized in three categories: Experimental Results, Theoretical Interpretation, and Future Directions.
The Sixth Quark
Title | The Sixth Quark PDF eBook |
Author | Patricia M. McDonough |
Publisher | |
Pages | 804 |
Release | 1985 |
Genre | Leptons (Nuclear physics) |
ISBN |