Category: Newsletter
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ATLAS further investigates the width of top quark
ATLAS further investigates the width of top quark The top quark is the heaviest known elementary particle and completes the quark sector of the standard model (SM). Like other fermions in the standard model (SM), it decays through the electroweak interaction. But unlike b and c quarks, which form long-lived hadrons, the top quark has
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AMS looks at Cosmic Galactic Rays
AMS looks at Cosmic Galactic Rays The Alpha Magnetic Spectrometer (AMS) is a state-of-the-art particle physics experiment operating on the International Space Station (ISS) since May 2011. In the first 6 years of missions, AMS has detected over 100 billion cosmic ray (CR) particles. Recently, it has released new results on proton, antiproton, lepton, and
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CERN History Days – 1 February 2018
CERN History Days – 1 February 2018 It has been over 20 years since the original CERN History Project concluded. That initiative produced three excellent volumes of CERN history spanning the period from the 1940s to the end of the 1970s. CERN History Days is a new initiative in order to relaunch the Project. Τhe
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First positrons for GBAR
First positrons for GBAR BROKEN IMAGE NOT MOVED (drupal url : https://ep-news.web.cern.ch//content/first-positrons-gbar) At the CERN Antimatter Factory, antihydrogen atoms are produced routinely by merging antiprotons and positrons. In order to control this process, it is necessary to reduce the energy of those particles, i.e. decelerate them to the lowest possible energies. The antiprotons are generated
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New paradigms for the CMS Phase-2 Upgrades
New paradigms for the CMS Phase-2 Upgrades The CMS Phase-2 Upgrade projects will replace or improve detector systems to provide the necessary physics performance under the challenging conditions of high luminosity at the HL-LHC. Installation of the upgraded detector systems starts in LS2 and is planned to be completed in LS3, presently scheduled for 2024
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A portable gas system for particle detectors.
A portable gas system for particle detectors. Today, about 30 gas systems are used to deliver the right gas mixture to the corresponding gaseous detectors at the LHC experiments. The detector gas mixture is the sensitive medium where the charge multiplication produces the signal that is then recorded and analysed. The correct and stable gas
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Searching for leptoquarks at the LHC
Searching for leptoquarks at the LHC Last month, Admir Greljo (University of Mainz) and Abdollah Mohammad (Kansas State University, US) during the Collider Cross Talk, gave a comprehensive overview of the theoretical and experimental aspects in leptoquarks searches. Leptoquarks are hypothetical particles that can turn quarks into leptons and vice versa and they can be
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Deep learning and the quest for new physics at the LHC
Deep learning and the quest for new physics at the LHC With massive amounts of computational power, machines can now recognize objects and translate speech in real time. Deep-learning software attempts to mimic the activity in layers of neurons in the neocortex, the wrinkly 80 percent of the brain where thinking occurs. The software learns,
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Designing Utopia – An Ultralow Picoammeter
Designing Utopia – An Ultralow Picoammeter There are various applications where the output of a sensor is a low current. In some cases like in ionizing radiation measurements, device characterization, leakage current measurements and biosensing instrumentation, the current that has to be measured can be as low as few femtoamperes. However, designing a measuring digitizer
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A successful heavy-ion campaign for ALICE
A successful heavy-ion campaign for ALICE The LHC stopped its 2017 operation at the beginning of December and the experiments have already started their plan of intervention for the end-of-year break. The last two weeks of data taking have been particularly important for ALICE, since a special run requested by our experiment took place. Proton-proton