
Quarkonium physics at the dawn of the LHC era
Résumé La physique du quarkonium à l’aube du LHC Le groupe de travail sur le quarkonium a été constitué en 2002 pour faire avancer la recherche et promouvoir la com...
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Résumé La physique du quarkonium à l’aube du LHC Le groupe de travail sur le quarkonium a été constitué en 2002 pour faire avancer la recherche et promouvoir la com...
The Belle collaboration at KEK has recently announced the discovery of an exotic new particle with non-zero electric charge. This particle, which the researchers have named the Z(4430), does not fit i...
Brookhaven National Laboratory have provided the first observations at a particle collider of bound-free pair production.
Résumé Comprendre la saveur pour accéder à la nouvelle physique La physique portant sur les divers types (ou saveurs) de quarks a un fort impact sur la physique des particules et e...
It is more than 50 years since researchers first observed particle–antiparticle mixing, with the discovery of a second, longer-lived neutral kaon state. This discovery pre-dated the quark model, but...
A paper entitled “Measurement of Bbar0 → D(*)0Kbar(*)0 Branching Fractions” became the focus of celebrations in early April, as it became the 200th to be submitted for publ...
Charmonium spectroscopy has seen a revival over the past year or so, with various groups reporting heavy charmonium states (see CERN Courier January 2004 p9). The BaBar collaboration has now added to ...
It is a classic example of the question to ask aliens from a distant galaxy to discover if they are made from what we on Earth define as matter or antimatter. Tell them to make neutral B mesons and an...
The High Energy Accelerator Research Organization has found a new and unusual particle.
The BaBar experiment at SLAC has revealed a new narrow particle state that has been identified as a charmed meson, that is, a charm quark, c, bound with an antiquark, in this case a strange antiquark,...