Read article 'ALICE and ATLAS find intriguing ‘double ridge’ in proton–lead collisions'
In analysing data from last year’s test run with proton–lead collisions in the LHC, the ALICE collaboration, followed almost immediately and independently by the ATLAS collaboration, have ...
Read article 'LHCb pins down X(3872) quantum numbers'
One of the most interesting discoveries of the past decade is that of an unconventional hadron, the X(3872), by the Belle experiment (Belle 2003).
Read article 'Spin physics in Dubna'
A report from the biennial international spin symposium.
Read article 'Mysterious long-range correlations seen in pPb collisions'
The CMS collaboration has published its first result on proton–lead (pPb) collisions, related to the observation of a phenomenon that was seen first in nucleus–nucleus collisions but also detected...
Read article 'Quarks on the menu in Munich'
400 theorists and experimentalists from all around the world convened in Munich on 8–12 October to discuss developments in the theory of strong interactions.
Read article 'A watershed: the emergence of QCD'
David Gross and Frank Wilczek look back at how QCD began to emerge in its current form 40 years ago.
Read article 'ALICE takes new directions in charm-suppression studies'
Using data from the second high-statistics lead–lead (PbPb) run of the LHC, which took place in 2011, the ALICE experiment is taking new directions in studying the interaction of charm quarks wi...
Read article 'First results from proton–lead colliding beams'
On 12 September, during a short, highly successful pilot run, the LHC operated with protons in one beam and lead ions in the other, so providing the LHC experiments with their first proton–nucleus ...
Read article 'Measurement of photons stimulates quest for QGP temperature'
One of the classic signals expected for a quark–gluon plasma (QGP) is the radiation of "thermal photons", with a spectrum reflecting the temperature of the system.
Read article 'CMS homes in on the heaviest quark'
The top quark is the heaviest point-like particle known. It weighs about as much as an atom of tungsten yet is an elementary building block of the Standard Model of particle physics.
