To reach Run 3 physics goals, ALICE (A Large Ion Collider Experiment) [1] must collect all minimum-bias data for an interaction rate (i.e., number of collisions each second) of 50 kHz for Pb–Pb and up to 1 MHz for pp collisions. This is two orders…
Read MORECERN operates several unique in-house radiation-test facilities and makes use of a broad variety of external facilities to satisfy the needs of users from experiments and equipment groups in the Research and Computing (RCS) and Accelerators and…
Read MOREAfter several years of complex design, manufacture and planning, the CMS collaboration, in tight cooperation with experts of the CERN Technology Department-Vacuum, Surfaces, and Coating group, have been installing the new heart of the detector, the…
Read MOREFig. 1 Large experimental systems at LHC, comprising various gaseous detectors covering thousands of m2, providing tracking and triggering for muons. Given their large areas and cost effectiveness, particle physics experiments rely heavily on…
Read MOREThe ATLAS Magnet Team, part of the EP-ADO-SO section, has the principal responsibility for the maintenance and operation of the ATLAS Superconducting Magnets. This effort is supported by a large number of colleagues, in particular from EP-DT, TE-CRG…
Read MOREDuring March the FASER detector was successfully installed into the LHC complex. FASER, a new small LHC experiment, designed to search for light, weakly interacting new particles in the LHC collisions was proposed in 2017, and after review by the…
Read MOREThe Inner Tracking System (ITS) is the innermost detector of the ALICE central barrel. It consists of seven cylindrical layers all equipped with Monolithic Active Pixel Sensors (MAPS) named ALPIDE (ALice PIxel DEtector). The ITS allows track ing…
Read MOREThe Dirac equation predicts the muon gyromagnetic ratio g=2. Loop effects from quantum field theory lead to a small deviation from this value, parameterized by the so called anomalous magnetic moment which is defined as aμ=(g-2)/2. The difference…
Read MORELast week, CERN's EP-DT group published their annual report for 2020; a detailed accound of the group activities at CERN conducted over the year in collaboration with the LHC and non-LHC experimental groups along with their academic and…
Read MORENuclear quadrupole moments (Q), a measure of charge asymmetry in nuclei, are experimentally accessible via the quadrupole interaction frequency νQ=eQVzz/h. To extract Q from this information one needs to know Vzz, the electric-field gradient at the…
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