Read article 'CMS observes long-range correlations in pp collisions at 13 TeV'
The CMS collaboration has published its first particle-correlation result from proton–proton (pp) collisions at a centre-of-mass energy of 13 TeV. The paper describes the observation of a phenomeno...
Read article 'STAR tracker snares heavy flavours'
Heavy quarks are important probes of the quark–gluon plasma that is produced when relativistic heavy ions collide. Because of a mass effect, it has been argued that heavy quarks lose less energy thr...
Read article 'ALICE in Vienna: from antinuclei to quark–gluon plasma'
The 2015 edition of the European Physical Society Conference on High Energy Physics (EPS-HEP 2015), which took place in Vienna in July (“Vienna hosts a high-energy particle waltz”), provid...
Read article 'ALICE goes forward with the ridge in pPb collisions'
One of the hottest debates at the LHC is the potential emergence of collective effects in proton–lead (pPb) collisions, prompted by the discovery of double ridge structures in angular correlatio...
Read article 'The most precise picture of the proton'
H1 and ZEUS release their definitive paper on deep-inelastic scattering.
Read article 'ALICE investigates ‘snowballs in hell’'
Résumé L’omelette norvégienne d’ALICE Il n’y a pas uniquement des hadrons ordinaires dans les débris des ” boules de feu ” produites par les collision...
Read article 'STAR helps to pin down a key phenomenon in gold collisions'
The Brookhaven National Laboratory has published new evidence indicative of a "chiral magnetic wave" rippling through quark–gluon plasma.
Read article 'First full jet measurement in Pb–Pb collisions with ALICE'
In high-energy collisions at the LHC, quarks and gluons occasionally scatter violently and produce correlated showers of particles, or “jets”. In proton–proton collisions, the rate o...
Read article 'COMPASS measures the pion polarizability'
The COMPASS experiment at CERN has made the first precise measurement of the polarizability of the pion – the lightest composite particle built from quarks.
Read article 'CMS heads towards solving a decades-long quarkonium puzzle'
Quarkonia – charm or beauty quark/antiquark bound states – are prototypes of elementary systems governed by the strong force.
