108010999
The development and use of a high speed packet switching network in a high-energy physics laboratory
107816989
Performance of the HPD minimum guidance systeme, pt 1
108673538
THE CERN TRACK-MATCH PROGRAM FOR VERTEX GUIDANCE BUBBLE CHAMBER MEASUREMENT SYSTEMS.
118467793
THE STATUS OF CERN--RHEL MINIMUM GUIDANCE.
195705202
Local area networks for microcomputers
Abstract This paper analyses the ways in which modern high performance Local Area Networks (LANs) can be of use to microcomputers. It discusses some of the basic concepts of LANs, with special reference to international standards. It then presents ways in which LANs may be connected to, and used with microcomputers. Examples are given of existing applications.
60563789
The effect of the CERNET network on computing at CERN
118122173
SPONTANEOUS CP BREAKING
118374875
Flavor mixing democracy and minimal CP violation
We point out that there is a unique parametrization of quark flavor mixing in which every angle is close to the Cabibbo angle theta(C) similar or equal to 13 degrees with the CP-violating phase phi(q) around 1 degrees, implying that they might all be related to the strong hierarchy among quark masses. Applying the same parametrization to lepton flavor mixing, we find that all three mixing angles are comparably large (around pi/4) and the Dirac CP-violating phase phi(l) is also minimal as compared with its values in the other eight possible parametrizations. In this spirit, we propose a simple neutrino mixing ansatz which is equivalent to the tri-bimaximal flavor mixing pattern in the phi(l) -> 0 limit and predicts sin theta(13) = 1/root 2sin(phi(l)/2) for reactor antineutrino oscillations. Hence the Jarlskog invariant of leptonic CP violation J(l) = (sin phi(l)/12) can reach a few percent if theta(13) lies in the range 7 degrees <= theta(13) <= 10 degrees. (C) 2012 Elsevier B.V. All rights reserved.
124117636
Vector meson effects on hadronic matrix elements
Strong interaction quantum corrections to hadronic matrix elements are usually estimated within the SU(N) QCD quark-gluon theory. Asymptotic freedom allows indeed the perturbative treatment of an amplitude as long as the loop-momentum is large compared to the typical one GeV confining scale. Unfortunately, the additional corrections arising from the low momentum side have a non-perturbative nature and are then very difficult to handle.
120740308
On strong physics in weak decays
Abstract We comment on some effects of strong physics in strange, charm and beauty weak decays. Measured decays indicative where a description in terms of hadrons is more appropriate than the quark-gluon perturbative language.
119913664
Nonleptonic Weak Interactions: A Theoretical Overview
The Kaon system remains the best laboratory to study the interplay between weak and strong interactions. Absolute estimates of hadronic amplitudes require non-perturbative methods. Comparisons between various approaches are presented. Implications on heavy flavor weak physics are also discussed.