Read article 'Profiling jets with ALICE'
Scaled pT spectra of charged particles in jets for different bins of jet transverse momentum. “Jets are collimated sprays of particles.” This ubiquitous characterization used in man...
Read article 'Nuclei come under the microscope in California'
It has long been known that, when they are put under a sufficiently energetic microscope, nuclei reveal a complicated structure – the more energetic the probe, the more complex the structure.
Read article 'ALICE probes the role of minijets in p–Pb collisions…'
One of the hottest topics at the LHC is the understanding of potential collective effects in proton–lead collisions, prompted by the discovery of ridge structures in angular correlations of part...
Read article '…and investigates suppression of ψ(2S)'
Charmonia, bound states of charm and anti-charm quarks, are probes for the formation of hot quark–gluon plasma (QGP) in heavy-ion collisions.
Read article 'Heavy-ion collisions: where size matters'
Results from ALICE provide insight into the size of the final state at “freeze-out” – and a window on collective behaviour.
Read article 'Cosmic particles meet the LHC at ISVHECRI'
More than 120 physicists from across the world met at CERN to discuss questions related to hadron production in cosmic-ray interactions and at accelerator experiments.
Read article 'Producing charm with light'
The electric charge of lead ions, when accelerated to ultra-relativistic velocities, is the source of an intense flux of high-energy quasi-real photons.
Read article 'ALFA in ATLAS measures pp cross-section with high precision'
Data from a special run of the LHC using dedicated beam optics at 7 TeV have been analysed to measure the total cross-section of proton–proton collisions in ATLAS.
Read article 'Precise measurements of top-quark production'
The top quark is the heaviest-known fundamental particle, whose mass of about 173 GeV is much larger than that of the other quarks, and comparable to those of the W, Z and Higgs bosons.
Read article 'COSY confirms existence of six-quark states'
Experiments at the Jülich Cooler Synchrotron (COSY) have found compelling evidence for a new state in the two-baryon system, with a mass of 2380 MeV and width of 80 MeV
