Postdoc @UTAustin, former DPhil @OxfordPhysics
Searching for Dark Matter with @lzdarkmatter and CrystaLiZe | He/Theyhuntsforwimps.com AustinJoined October 2023
I feel like it does actually say something that this undercover reporting was done by an independent outfit while the British press were busy hounding a black professor to his death. But I wouldn't say it's discrediting for *them*.
"The people doing the filming.. were founded by.. the centre for climate reporting"
So the BBC is going to start highlighting the origin of all news reports? The next time you cover a story in the Daily Mail you'll point out its owned by a billionaire tax avoider, will you?
What are the backgrounds for our event of interest LZ230616, and why can't they currently explain it? 🤔 A thread: 🧵
[Images from the TeVPA talk, available on our website lz.lbl.gov] #darkmatter#LZ230616
@DorinCheptea@jwuphysics@lzdarkmatter With more events, you're certainly right that we can hone in on what a dark matter signal would be. Though we would *also* want a wide range of detectors to find corresponding results, to guarantee that this isn't a fluke and also to probe its properties in different conditions
@DorinCheptea@jwuphysics@lzdarkmatter As for waiting years, I wouldn't worry about that - LZ has hundreds more days of exposure ready to be analyzed, and it's just a case of covering our bases before doing so 👀
@stonderlor64239@martinmbauer The blobs in the upper band of black points are gammas! We get a broad spectrum of beta emissions, and a narrow peak from monoenergetic gammas (from Ar, Rn, and internal Xe decays, among others)
The LZ dark matter search has observed a single unexplained event
Many discoveries have begun with a single anomalous event, but so have even more false alarms. So we wait. Typically, direct-detection experiments have excellent control over their backgrounds
Our new results are out! We have observed a single nuclear recoil in our detector that we find difficult to explain with our background model. Could it be a hint of dark matter? It’s far too early to say, but it’s certainly intriguing! #darkmatter
The LUX-ZEPLIN dark matter detection experiment, supported by @ENERGY's Office of Science, has recorded a single particle interaction that researchers are having difficulty explaining with known background signals from normal matter.
Dark matter has never been directly detected.
@jwuphysics@lzdarkmatter Our data quality team reduce these by orders of magnitude, but some slip through the cracks: we predict 2.7 in this search, and a fit gives 2.6. And notably, mostly at low energies: the number predicted by the candidate event are orders of magnitude lower still 👀
@jwuphysics@lzdarkmatter The blip at the bottom of the plot (1000phd S2) is likely what we call an accidental coincidence event: a flash of light and a burst of electrons in the detector close enough to one another to be indistinguishable from a real scatter
Exciting results from LZ this morning!
But even more exciting that
A: we have other liquid noble experiments to perform an essential cross-check, and
B: we have hundreds of live days of data ready to analyze soon! 🤩
Our new results are out! We have observed a single nuclear recoil in our detector that we find difficult to explain with our background model. Could it be a hint of dark matter? It’s far too early to say, but it’s certainly intriguing! #darkmatter
The Xenon Collaboration is excited to announce that it will be hosting a LIVE presentation on Monday, August 31 at 10:00am EST about new findings from the XENONnT experiment.
Learn more at agenda.infn.it/event/53372/. Registration is required!
🥇🚨 Gold alert - IceCube observation of a high-energy neutrino candidate event at 2026/08/27 15:35:36 UTC. Find out more at: gcn.nasa.gov/circulars/45455.
#IceCubeAlert
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