Read article 'Belle finds more exotic mesons'
The Belle collaboration has announced the discovery at the Japanese B-factory, KEKB, of three new exotic sub-atomic particles, which they have labelled the Z1, Z2 and Yb. The Z1 and Z2 states appear t...
Read article 'BaBar gets right to the bottom'
The BaBar collaboration, working at SLAC has observed the ground state of the bottomonium family, the ηb meson. Bottomonium particles are bound states of a bottom quark and its antiquark. The first ...
Read article 'Belle sees a difference in direct CP violation between charged and neutral B decays'
The Belle collaboration, working at the KEKB facility at KEK, has observed a difference in the direct CP asymmetry for decays of charged and neutral B mesons into a kaon and a pion. This res...
Read article '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...
Read article 'Belle Collaboration discovers new meson'
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...
Read article 'RHIC glimpses process that could limit LHC'
Brookhaven National Laboratory have provided the first observations at a particle collider of bound-free pair production.
Read article 'Understanding flavour is the key to new physics'
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...
Read article 'B-factories yield first evidence for elusive D⁰–D̅⁰ mixing'
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...
Read article 'BaBar Collaboration submits its 200th paper'
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...
Read article 'BaBar collaboration detects new resonance'
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 ...
