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6 Beiträge6 Beteiligte0 Beiträge heute
Öffentlich
Universität Heidelberg

Breakthrough Prize für Grundlagenforschung am leistungsfähigsten Teilchenbeschleuniger der Welt: Wissenschaftlerinnen und Wissenschaftler der Universität Heidelberg federführend an Großexperimenten des CERN beteiligt
uni-heidelberg.de/de/newsroom/ #cern

www.uni-heidelberg.deBreakthrough Prize für Grundlagenforschung am leistungsfähigsten Teilchenbeschleuniger der Welt
Öffentlich
Josef Muehlbauer

Soon we are live with Prof John Ellis, the world most cited theoretical physicist at Kings College London. We will talk about: #physics #cern #desy #astrophysics #quantumphysics #quantum #higgs and of course we will talk about Science 4 Peace and the Peace Movement.

Watch the #Interview here: m.youtube.com/watch?v=Rb4IqdS3

YouTubeQuantum Physics, Higgs & Science 4 Peace Forum - John Ellis (238)Von VIPR - Varna Peace Institute
Öffentlich
Veronica Olsen 🏳️‍🌈🇳🇴🌻

I'm glad to see there are more data to be found in the run 2 datasets! It will also be interesting to see what comes out of the HL-LHC project. It has already been in the making for years.

I did my 2.5 year fellowship on it in 2017 to 2019, but I'm not very familiar with the interactions they're studying here. W and Z were discovered at CERN in the early 80s though using the LEP accelerator, the LHC's predecessor.

phys.org/news/2025-04-atlas-ho

Phys.org · ATLAS gets under the hood of the Higgs mechanismVon CERN
#Science#HighEnergyPhysics#Physics
Öffentlich *
Universität Freiburg

Der „Breakthrough Prize in Fundamental Physics“ 2025 geht an vier CERN-Experimente – mit maßgeblicher Beteiligung der Universität Freiburg.

Die Teilchenphysik-Experimente ALICE, ATLAS, CMS und LHCb am CERN wurden für ihre Beiträge zur Entdeckung des Higgs-Bosons, zur Erforschung neuartiger Teilchen und zur Untersuchung der Materie-Antimaterie-Asymmetrie mit dem renommierten „Breakthrough Prize in Fundamental Physics“ ausgezeichnet.

Am ATLAS-Experiment waren und sind die Teams von Prof. Dr. Karl Jakobs, Prof. Dr. Gregor Herten, Prof. Dr. Markus Schumacher sowie seit Januar 2025 auch von Jun.-Prof. Dr. Brian Moser beteiligt. Ihre Arbeiten umfassten u. a. Aufbau, Betrieb und Analyse des Experiments sowie zentrale Beiträge zum Nachweis des Zerfalls des Higgs-Bosons in Quarks und geladene Leptonen. Jakobs war von 2017 bis 2021 Sprecher der internationalen ATLAS-Kollaboration.

Am LHCb-Experiment, das neue Einblicke in die Asymmetrie von Materie und Antimaterie sowie in seltenste Teilchenzerfälle ermöglicht, ist seit Juli 2024 eine neue Arbeitsgruppe unter Leitung von Prof. Dr. Marco Gersabeck am Physikalischen Institut beteiligt.

Darüber hinaus sind Freiburger Gruppen an der Weiterentwicklung der Experimente für die Hochluminositätsphase des LHC beteiligt. Für ATLAS und LHCb entstehen in Freiburg hochauflösende Silizium-Spurdetektoren, die ab 2030 zum Einsatz kommen sollen.

ufr.link/breakthrough-prize

Porträtfoto mit Zitat von Prof. Dr. Karl Jakobs vom Physikalischen Institut – ATLAS-Experiment. „Der Preis würdigt das hohe Engagement von Tausenden Wissenschaftler*innen und Ingenieur*innen, insbesondere aber auch unserer Doktorand*innen und Nachwuchswissenschaftler*innen, die in den großen Kollaborationen am CERN zusammenarbeiten.“
Porträtfoto und Zitat von Prof. Dr. Marco Gersabeck vom Physikalischen Institut – LHCb-Experiment. „Die Auszeichnung durch den Preis drückt eine Wertschätzung der vielfältigen Beiträge des LHCb-Experiments aus, die von Entdeckungen neuartiger Materie-Antimaterie-Asymmetrien und seltenster Teilchenzerfälle bis zu Dutzenden neuartiger Zustände von Hadronen reichen.“
#unifreiburg#universitätfreiburg#universityfreiburg
Öffentlich
Verfassungklage@troet.cafe

#Quarkonium:

Vermisstes #Elementarteilchen nach 50 Jahren am #Cern entdeckt

In Daten des großen #Teilchenbeschleunigers am #Cern ist ein neues #Hadron entdeckt worden. Eigentlich hat man #Higgs-Bosonen gesucht.

Ein #Forschungsteam am #Cern hat in Daten, die von 2016 bis 2018 gesammelt wurden, das letzte noch fehlende #Hadron des #Quarkoniums gefunden. Das sind die gebundenen Zustände eines #Quarks mit seinem #Antiteilchen.

golem.de/news/quarkonium-vermi

Golem.de · Quarkonium: Vermisstes Elementarteilchen nach 50 Jahren am Cern entdeckt - Golem.deVon Mario Petzold
Öffentlich
Freya Blekman

The European Particle Physics Strategy Update documents are now available here: indico.cern.ch/event/1439855/c (yes 250+ contributions!) #EPPSUHelpdesk #Physics #CERN

One important part of the input is feasibility studies where starting and running experiments give an estimate of where they expect their physics results to be 10-15 years from now. For example this is the ATLAS and CMS writeup: indico.cern.ch/event/1439855/c

Öffentlich
Freya Blekman

The European Particle Physics Strategy Update documents are now available here: indico.cern.ch/event/1439855/c (yes 250+ contributions!) #EPPSUHelpdesk #particlephysics #academia #CERN

So who submits plans? Definitely countries that are CERN member states. I was, for example, involved with the German contribution, which is the result of 4 multi-day workshops with discussion between hundreds of physicists, also with inputs from other physics disciplines btw.

Öffentlich
MediaFaro News Digest

Particle accelerator: CERN presents a feasibility study for a LHC successor.

The Large Hadron Collider (LHC) is currently the largest and most powerful particle accelerator in the world. Groundbreaking discoveries have been made there, such as the detection of the Higgs boson in 2012.

The European Organization for Nuclear Research (CERN) is planning a successor with a circumference of over 90 kilometres.

mediafaro.org/article/20250401

Artist's impression of the FCC proton-proton collider. | Image: PIXELRISE
Heise Online · Particle accelerator: CERN presents a feasibility study for a LHC successor.Von Werner Pluta
#LHC#Physics#ParticlePhysics
Öffentlich
François Ferron 🇪🇺 🔷️🔶️

#Humor still lives on in #science... thank you for this:
CERN scientists find evidence of quantum entanglement in sheep | #CERN
home.cern/news/news/physics/ce

CERNCERN scientists find evidence of quantum entanglement in sheepThe CERN flock of sheep on site in 2017. (Image: CERN) Quantum entanglement is a fascinating phenomenon where two particles’ states are tied to each other, no matter how far apart the particles are. In 2022, the Nobel Prize in Physics was awarded to Alain Aspect, John F. Clauser and Anton Zeilinger for groundbreaking experiments involving entangled photons. These experiments confirmed the predictions for the manifestation of entanglement that had been made by the late CERN theorist John Bell. This phenomenon has so far been observed in a wide variety of systems, such as in top quarks at CERN’s Large Hadron Collider (LHC) in 2024. Entanglement has also found several important societal applications, such as quantum cryptography and quantum computing. Now, it also explains the famous herd mentality of sheep. A flock of sheep (ovis aries) has roamed the CERN site during the spring and summer months for over 40 years. Along with the CERN shepherd, they help to maintain the vast expanses of grassland around the LHC and are part of the Organization’s long-standing efforts to protect the site’s biodiversity. In addition, their flocking behaviour has been of great interest to CERN's physicists. It is well known that sheep behave like particles: their stochastic behaviour has been studied by zoologists and physicists alike, who noticed that a flock’s ability to quickly change phase is similar to that of atoms in a solid and a liquid. Known as the Lamb Shift, this can cause them to get themselves into bizarre situations, such as walking in a circle for days on end. Now, new research has shed light on the reason for these extraordinary abilities. Scientists at CERN have found evidence of quantum entanglement in sheep. Using sophisticated modelling techniques and specialised trackers, the findings show that the brains of individual sheep in a flock are quantum-entangled in such a way that the sheep can move and vocalise simultaneously, no matter how far apart they are. The evidence has several ramifications for ovine research and has set the baa for a new branch of quantum physics. “The fact that we were having our lunch next to the flock was a shear coincidence,” says Mary Little, leader of the HERD collaboration, describing how the project came about. “When we saw and herd their behaviour, we wanted to investigate the movement of the flock using the technology at our disposal at the Laboratory.” Observing the sheep’s ability to simultaneously move and vocalise together caused one main question to aries: since the sheep behave like subatomic particles, could quantum effects be the reason for their behaviour? “Obviously, we couldn’t put them all in a box and see if they were dead or alive,” said Beau Peep, a researcher on the project. “However, by assuming that the sheep were spherical, we were able to model their behaviour in almost the exact same way as we model subatomic particles.” Using sophisticated trackers, akin to those in the LHC experiments, the physicists were able to locate the precise particles in the sheep’s brains that might be the cause of this entanglement. Dubbed “moutons” and represented by the Greek letter lambda, l, these particles are leptons and are close relatives of the muon, but fluffier. The statistical significance of the findings is 4 sigma, which is enough to show evidence of the phenomenon. However, it does not quite pass the baa to be classed as an observation. “More research is needed to fully confirm that this was indeed an observation of ovine entanglement or a statistical fluctuation,” says Ewen Woolly, spokesperson for the HERD collaboration. “This may be difficult, as we have found that the research makes physicists become inexplicably drowsy.” “While entanglement is now the leading theory for this phenomenon, we have to take everything into account,” adds Dolly Shepherd, a CERN theorist. “Who knows, maybe further variables are hidden beneath their fleeces. Wolves, for example.” Theoretical physicist John Ellis, pioneer of the penguin diagram, with its updated sheep version. Scientists at CERN find evidence of quantum entanglement in sheep in 2025, the year declared by the United Nations as the International Year of Quantum Science and Technology. (Image: CERN)
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