LHC

Only a fraction of collision events that look like they produce a Higgs boson actually produce a Higgs boson. Luckily, it doesn’t matter.

What if you want to capture an image of a process so fast that it looks blurry if the shutter is open for even a billionth of a second? This is the type of challenge scientists on experiments like CMS and ATLAS face as they study particle collisions at CERN’s Large Hadron Collider. An extremely fast new detector inside the CMS detector will allow physicists to get a sharper image of particle collisions.

Those who study particle physics will find that every step of the journey offers a new perspective and new set of responsibilities. Symmetry chats with scientists working at the Large Hadron Collider to hear about differences between seven different rungs on the academic career ladder.

The USCMS collaboration has received approval from the Department of Energy to move forward with final planning for upgrades to the giant CMS particle detector at the Large Hadron Collider. The upgrades will enable it to take clearer, more precise images of particle events emerging from the upcoming High-Luminosity LHC, whose collision rate will get a 10-fold boost compared to the collider’s design value when it comes online in 2027.

Scientists at CERN have found a way to learn more about the interior of neutron stars using the Large Hadron Collider. Researchers on the ALICE experiment are uncovering the properties of elusive hyperon particles hypothesized to be found inside neutron stars.

From CERN, Dec. 3, 2019: Large-scale scientific facilities, such as those for conducting particle physics research, are financed by society. A team of economists recently performed a cost-benefit analysis of upgrading the Large Hadron Collider. They concluded that the socioeconomic and cultural benefits gained from the project — not including potential scientific discoveries — exceed the total pecuniary investment.

This summer, physicist Larry Lee had festival-goers dancing to the sounds of science. He uses his musical training and an interest in collider machinery to create a new instrument of sorts. Using a piece of standard lab equipment, Lee has created a science-inspired, electronic music-backed light show.

Maria Teresa Dova has been instrumental in bringing scientists in Argentina new opportunities to participate in particle physics and astrophysics experiments, including one that co-discovered the Higgs boson.

From CERN, Oct. 7, 2019: The CMS collaboration has measured for the first time the variation, or “running,” of the top quark mass. The theory of quantum chromodynamics predicts this energy-scale variation for the masses of all quarks and for the strong force acting between them. Observing the running masses of quarks can therefore provide a way of testing quantum chromodynamics and the Standard Model.

From DOE, Sept. 10, 2019: Fermilab scientist Bo Jayatilaka is quoted in this article on ESnet, which has expanded to connect more than 40 major research institutions at speeds 15,000 times faster than a home network.