1,761 research outputs found
CP Violation
An overview of the phenomenology of CP violation is presented. The Standard
Model mechanism of CP violation and its main experimental tests, both in the
kaon and bottom systems, are discussed. (Lectures given at the 1993 Trieste
Summer School and at the Escuela Latinoamericana de Fisica, ELAF'93,
Argentina).Comment: 29 pages, LaTeX (4 figures not included), CERN-TH.7144/9
Electroweak Precision Tests
Precision measurements of electroweak observables provide stringent tests of
the Standard Model structure and an accurate determination of its parameters.
An overview of the present experimental status is presented.Comment: 11 pages, 9 figures. Invited talk at the International Workshop
``Particles in Astrophysics and Cosmology: from Theory to Observation''
(Valencia, 3-8 May 1999
Flavourdynamics
These lectures provide an introductory overview of the dynamics of
flavour-changing transitions. The main emphasis is put on present tests of the
quark-mixing matrix structure and the phenomenological determination of its
parameters. The interplay of strong interactions in weak decays and the
important role of flavour symmetries for controlling the size of QCD
corrections to some semileptonic transitions are discussed.Comment: 54 pages, latex, 14 figures (included in a separate .uu file)
Lectures given at the XXIII International Meeting on Fundamental Physics
(Comillas, 22--26 May 1995). 1 reference correcte
Importance of Precision Measurements in the Tau Sector
decays provide a powerful tool to test the structure of the weak
currents and the universality of their couplings to the boson. The
constraints implied by present data and the possible improvements at the
-charm Factory are analyzed.Comment: 17 pages, latex, 1 PS figure (included in a separate .uu file
Precision Tests of the Standard Model
Precision measurements of electroweak observables provide stringent tests of
the Standard Model structure and an accurate determination of its parameters.
An overview of the present experimental status is presented.Comment: 30 pages, 11 Postscript figures Lectures given at the 25th Winter
Meeting on Fundamental Physics (Formigal, March 1997
Theoretical status of epsilon'/epsilon
The Standard Model prediction for epsilon'/epsilon is updated, taking into
account the most recent theoretical developments. The final numerical value,
epsilon'/\epsilon = (17\pm 6) x 10^{-4}, is in good agreement with present
measurements.Comment: 6 pages. Invited talk at the 4th Int. Conference on Hyperons, Charm
and Beauty Hadrons (Valencia, June 2000
The Standard Model of Electroweak Interactions
What follows is an updated version of the lectures given at the CERN Academic
Training (November 1993) and at the Jaca Winter Meeting (February 1994). The
aim is to provide a pedagogical introduction to the Standard Model of
electroweak interactions. After briefly reviewing the empirical considerations
which lead to the construction of the Standard Model Lagrangian, the particle
content, structure and symmetries of the theory are discussed. Special emphasis
is given to the many phenomenological tests (universality, flavour-changing
neutral currents, precision measurements, quark mixing, etc.) which have
established this theoretical framework as the Standard Theory of electroweak
interactions.Comment: 40 pages, LaTeX (uses cite, epsf), 6 figures (included in a separate
uu file). Lectures at the XXII Int. Winter Meeting (Jaca, February, 1994) and
at the CERN Academic Training (Geneva, November, 1993
Tau Physics Prospects at the Tau-Charm Factory and at Other Machines
The prospects for tau physics at future high-luminosity facilities are
briefly discussed. Although important (and often complementary) contributions
will be made from other machines, the unique experimental environment near
threshold makes the Tau-Charm Factory the best experimental tool for
physics.Comment: 9 pages, LaTeX (figures not included), CERN-TH.7065/9
QCD Tests from Tau Decays
The total hadronic width can be accurately calculated using
analyticity and the operator product expansion. The theoretical analysis of
this observable is updated to include all available perturbative and
non-perturbative corrections. The experimental determination of
and its actual uncertainties are discussed.Comment: 16 pages, latex, 3 Postscript figures, uses sprocl.sty, Invited Talk
at the 20th Johns Hopkins Workshop --Non Perturbative Particle Theory &
Experimental tests-- (Heidelberg, 27-29 June 1996
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