Read article 'Positrons catch a wave at SLAC'
In a study reported in Nature, a team working at the Facility for Advanced Accelerator Experimental Tests (FACET) at SLAC has shown that the high electric-field gradients possible in plasma can be har...
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 'CMS observes simultaneous production of top quarks and Z bosons'
The measured cross-sections are also used to place the most stringent limits to date on models of new physics employing any of four different dimension-six operators.
Read article 'Searches for new phenomena with LHC Run-2'
After demonstrating a good understanding of the detector and observing most of the Standard Model particles using the first data of LHC Run 2 collected in July (CERN Courier September 2015 p8), the A...
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 'LHCb improves trigger in Run 2'
LHCb has significantly improved the trigger for the experiment during Run 2 of the LHC. The detector is now calibrated in real time, allowing the best possible event reconstruction in the trigger...
Read article 'Event view of highest energy neutrino detected by IceCube'
This is an event view of the highest energy neutrino detected so far by the IceCube experiment based at the South Pole (CERN Courier December 2014 p30). Each sphere is one optical sensor; the coloured...
Read article 'The universe is getting out of breath'
A new study of more than 200,000 galaxies, from the ultraviolet to the far infrared, has provided the most comprehensive assessment of the energy output of the nearby universe. It confirms that the ra...
Read article 'LHCb reports observation of pentaquarks'
In 1964, Murray Gell-Mann and George Zweig independently predicted a substructure for hadrons: baryons would be comprised of three quarks, mesons of a quark–antiquark pair. They also said that b...
Read article 'Pakistan becomes associate member state of CERN'
The Islamic Republic of Pakistan became an associate member state of CERN on 31 July, following notification that Pakistan has ratified an agreement signed last December, granting this status to ...
