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ArgoNeuT hits a home run with measurements of neutrinos in liquid argon

Scientists on the ArgoNeuT experiment have developed a method that enables them to better distinguish the tracks that particles leave behind in liquid argon, as well as a way to better differentiate between signals and background. And thanks to the software’s great performance, ArgoNeuT will aid larger neutrino experiments in their quest to understand the nature of the subtle neutrino.

Identifying lower-energy neutrinos with a liquid-argon particle detector

This is a visual display of an ArgoNeuT event showing a long trail left behind by a high energy particle traveling through the liquid argon accompanied by small blips caused by low energy particles.

For the first time, scientists have demonstrated that low-energy neutrinos can be thoroughly identified with a liquid-argon particle detector. The results, obtained with the ArgoNeuT experiment, are promising for experiments that use liquid argon to catch neutrinos, including the upcoming Deep Underground Neutrino Experiment.

From turkeys to turn-keys

A superconducting radio-frequency accelerator cavity is mounted and connected to a cryocooler, cooling the cavity without the use of liquid helium. This new device could make it easier to produce high-average-power electron beams for industrial applications. Photo: Marty Murphy

Researchers demonstrate the cryogen-free operation of a superconducting radio-frequency cavity that might ease barriers to its use in societal applications.

Single-electron beam observed in IOTA for the first time

From left: Aleksandr Romanov, Giulio Stancari, Vladimir Shiltsev and Chip Edstrom, seen here in the Electrical Service Building, where some of the IOTA apparatuses and control reside, stand by screens that display IOTA activity. The photo was taken on Oct. 31, 10:15 p.m., when three electrons were circulating in the machine. Romanov points to the computer screen on the left, where a camera image of the beam was visible. The screen on the right shows one of the first plots of the discrete steps. Photo: Giulio Stancari

One of the most interesting scientific topics at IOTA will be studies of beams made of a single electron.

Superconducting film technology leads to record performance for low-frequency SRF cavity

An SRF team at Fermilab has demonstrated record performance from an accelerating cavity using a technique that could lead to significant cost savings for future accelerators.

MicroBooNE demonstrates use of convolutional neural networks on liquid-argon TPC data for first time

Recently, the MicroBooNE experiment published a paper describing how they used convolutional neural networks — a particular type of deep neural network — to sort individual pixels coming from images made by a particular type of detector.

Beautiful Higgs decays

This event display from CMS shows a proton-proton collision inside the Large Hadron Collider that has characteristics of a Higgs decaying into two bottom quarks. Image courtesy of CMS

CMS observes Higgs boson decays into bottom quarks, furthering our knowledge of how the particles that make up matter behave.

Chopping beam to your taste

This is the assembled 200-ohm kicker for the MEBT chopper. Photo: Reidar Hahn

A Fermilab accelerator team has designed a device that chops accelerator-generated ion beams under highly demanding conditions.

Extracting signals of elusive particles from giant chambers filled with liquefied argon

A Brookhaven team working on the MicroBooNE neutrino experiment use software to develop images that trace neutrinos’ interactions in a bath of minus 303-degree Fahrenheit liquid argon.

Breaking the symmetry between fundamental forces

Measuring a certain parameter of particles emerging from Tevatron collisions helps us better understand how the unified electromagnetic and weak forces broke into separate distinct entities in the universe’s early moments.