iiinova — where your digital self keeps evolving

Laura Baudis @lbaudis.bsky.social · 28/09/2026

It’s difficult to follow #ZFF given the recent start of the autumn semester. But it was so inspiring to listen to Naomi Watts yesterday, who very emotionally talked about her career at ZFF Masters, including her breakthrough with Mulholland Drive in 2001

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Laura Baudis @lbaudis.bsky.social · 19/09/2026

We were happy to host the XLZD collaboration meeting at the University of Zurich this summer :)

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Knut Morå @knut.dundasmora.no · 01/09/2026

Exciting dark matter news from @lzdarkmatter.bsky.social ! We see one event consistent with a 248 keV nuclear recoil, in tension with our background model at 2.6 sigma. Paper is now available here: lz.lbl.gov/wp-content/u... 🧪⚛️

lz.lbl.gov

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Laura Baudis @lbaudis.bsky.social · 01/09/2026

Happy to be back in Geneva for the APPEC town meeting, which starts tomorrow morning. The meeting, attended also by colleagues from Canada, Japan and USA, aims to deliver the final input to the European Astroparticle Physics Strategy 2027–2036 indico.cern.ch/event/164860...

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Laura Baudis @lbaudis.bsky.social · 01/09/2026

Here is an article in UZH News about the new XENONnT result (in German): www.news.uzh.ch/de/articles/...

news.uzh.ch

Sonnenneutrinos

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chipp-news.bsky.social @chipp-news.bsky.social · 01/09/2026

XENONnT: First Measurement of Low-Energy Solar Neutrinos Scattering off Electrons scnat.ch/en/id/bA7dW

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Laura Baudis @lbaudis.bsky.social · 01/09/2026

With XENONnT we observed solar pp neutrinos via neutrino-electron scattering. With an exposure of 2.46 t x y and electron recoil energies from 1 keV to 140 keV (probing neutrinos with energies down to 17 keV) the measured flux is (10.2±2.0)x10^10 cm^-2 s^-1. Read more at: arxiv.org/abs/2608.29450

The solar pp flux estimated from the inference results. Top: The best-fit result is shown as a solid red point. Also plotted are results from combining GALLEX/GNO and SAGE, Borexino, and PandaX-4T. The prediction from the B16-GS98 solar model is indicated by a vertical grey dashed line. Bottom: Log likelihood ratio as a function of the solar pp-flux. Dashed lines indicate different significance levels.

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Knut Morå @knut.dundasmora.no · 31/08/2026

Good job @xenonnt.bsky.social observing solar pp neutrinos! XLZD-collaborative watch party in Zurich :)

Xenon and LZ Zurich groups on some sofas

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Laura Baudis @lbaudis.bsky.social · 30/08/2026

Tomorrow, August 31 at 4 pm CEST, the XENON Collaboration will host a live presentation about new findings from the XENONnT experiment. You can learn more at agenda.infn.it/event/53372/. Please note that registration is required for the event!

A picture of the XENONnT experiment underground at LNGS.

The announcement for the new results from XENONnT.

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Laura Baudis @lbaudis.bsky.social · 29/08/2026

If you’re in Zurich, today I will discuss dark matter, my collaboration with an artist, and eventually my thoughts on fashion before the fashion performance at the @ethz.ch Polyterrasse. This is part of Scientifica, Switzerland’s largest science festival: scientifica.ch/event/art-x-...

scientifica.ch

Fashion Performance: Wie Forschung zu tragbaren Kleidern wird - Scientifica

Ein angenehm tragbarer Stricksweater, der auf kritische Menschenrechtsfragen hinweist? Eine luftige Jacke, deren Ursprung in der Zellbiologie liegt? Ein Pullover, der die Grundgesetzte der Astrophysik...

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Laura Baudis @lbaudis.bsky.social · 12/08/2026

Will it be cloudy this evening? Either way, the view hier in A Coruña is beautiful :)

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Laura Baudis @lbaudis.bsky.social · 25/07/2026

Oh the faculty meetings. “It was a power struggle, but over what?…” Page 210 in Margaret Atwood’s “Book of Lives. A Memoir of Sorts”, a book I wish would never end

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Laura Baudis @lbaudis.bsky.social · 23/07/2026

Interesting pictogram at Lago di Carassina. It seems so harmless from the outside

Picture of Lago di Carassina in Ticino, at 1707 m above sea level

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Sesh Nadathur @seshnadathur.bsky.social · 09/07/2026

This is a good write up of the Nature anisotropy paper debacle. But while Sawala is right that it's unfair to the referees to expect them to have caught the big "elemental" mistake in the paper, he's also being very generous - there is another important error that the referees *should* have caught.

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Laura Baudis @lbaudis.bsky.social · 04/07/2026

We just ended a weeklong, very constructive XLZD collaboration meeting in the beautiful main building of the University of Zurich. This year, we also welcomed 11 new Canadian groups who joined the project, strengthening our double beta decay expertise!

A picture of the XLZD collaboration in front of the UZH Main Building

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Physics Today @physicstoday.aip.org · 26/06/2026

Cosmic rays can be a window into exciting experiments in physics, astrophysics, and atmospheric science. Cheap, easy-to-use muon detectors are bringing cosmic-ray studies to high schools and colleges worldwide.

physicstoday.aip.org

Muon detectors for the people!

The specialized devices are democratizing access to cosmic-ray experiments.

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Laura Baudis @lbaudis.bsky.social · 26/06/2026

Interesting read: arxiv.org/abs/2605.17534

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Randall Munroe @xkcd.com · 26/06/2026

Baryon Asymmetry xkcd.com/3263/

4-panel comic. (1) [Person floating near glowing black ball] PERSON: So you’re the creator of the universe? CREATOR: That’s me! So, got any questions? (2) PERSON: Oh man, so many. What’s the reason for baryon asymmetry? Why is most of the universe matter and not antimatter? (3) CREATOR: Crap. Did I forget the antimatter? One sec, let me just... (4) [explosions everywhere with “BOOM” sound effect]

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Laura Baudis @lbaudis.bsky.social · 03/05/2026

I am "Shifter 2" this long and sunny weekend (fortunately for me. together with a nice postdoc who knows everything) and so far, Xenoscope is behaving (& I wake up several times per night to peek at the temperatures and pressures ;-)

The Slow Control screen for Xenoscope, a 350-400 kg liquid xenon experiment at UZH

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Laura Baudis @lbaudis.bsky.social · 30/04/2026

Very happy to be back in New York and visit Columbia University for a colloquium and discussions with my XENON colleagues

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National Academy of Sciences @nasonline.org · 24/04/2026

🎉The 163rd NAS Annual Meeting starts today!🎉 Join us online as we welcome new members, spotlight their research, explore the future of ocean health, & celebrate scientific achievement. Follow our coverage + tune into live webcasts all weekend: www.nasonline.org/annual-meeti... #NAS163

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Laura Baudis @lbaudis.bsky.social · 25/04/2026

I met a smart guy here in DC ;-)

Albert Einstein memorial on Constitution Avenue

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Laura Baudis @lbaudis.bsky.social · 18/04/2026

New paper in PRC: with data from XENONnT, we measured the 214-Bi β-decay spectrum to the ground state of 214-Po, a first-forbidden non unique decay. The prediction based on the conserved vector current (CVC) hypothesis yields the best description of the data: journals.aps.org/prc/abstract...

Decay scheme of 214Bi to 214Po and subsequently to
210Pb. The diagram shows β-decays from 214Bi (left) either directly
to the ground state (g.s.) or via excited states of 214Po (center).
Approximately 80 excited nuclear states are accessible during the
decay (symbolically represented). All these excited states deexcite
via γ-decay emissions (red arrows), always including at least one
transition greater than 609 keV. The final step is the α decay of 214Po
(black arrow) directly to the stable ground state of 210Pb (right).

Comparison of the experimental data from XENONnT with the CVC theoretical spectrum (filled histogram).

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EarthSky @earthskyscience.bsky.social · 16/04/2026

Bartlomiej Grzywacz in Poland captured #Comet R3 PanSTARRS low above the horizon on Thursday. Thank you, Bartlomiej! ☄️🔭📸 buff.ly/ROtbCaj Have you seen #Comet R3 PanSTARRS yet? See more pics of the comet and a finder chart: buff.ly/0iBbMTv

A comet with a bluish head and long, thin tail against background stars.

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Laura Baudis @lbaudis.bsky.social · 15/04/2026

If you're in Zurich, join us for today's physics colloquium, by Marie-Cécile Piro, on detecting the invisible! colloquium.phys.ethz.ch/programme/cu...

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Physics Today @physicstoday.aip.org · 30/03/2026

The black hole information paradox has puzzled researchers for a half century. Cosmologist and science communicator @clairelamman.bsky.social illustrates the paradox and its implications in a new scrollable comic. #astronomy #comic #blackholes

physicstoday.aip.org

Black holes aren’t black

A half century after the discovery of Hawking radiation, we are still dealing with the quantum puzzle it exposed.

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Physics Today @physicstoday.aip.org · 26/03/2026

The finer details of neutrino oscillations were outside the sensitivity of @icecubeneutrino.bsky.social—until now. The recently upgraded experiment has a new mission to determine neutrino mass ordering, one of the highest priority questions in particle physics. #physics #icecube

physicstoday.aip.org

IceCube expands neutrino search to spot fainter signals

A major upgrade to the 15-year-old detector will aid in the study of neutrino oscillations.

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Laura Baudis @lbaudis.bsky.social · 24/03/2026

Preparations for the next run (with LArS, for Legend)

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Laura Baudis @lbaudis.bsky.social · 24/03/2026

We searched for x-rays in XENONnT's low-energy data, as predicted from dynamical quantum collapse models, and improved upon previous constraints by up to two orders of magnitude: journals.aps.org/prl/abstract...

XENONnT 95% CL upper bound on the CSL model parameters, compared to exclusion limits from other non-interferometric experiments and theoretical propositions. Shaded areas mark the excluded regions of the allowed parameter space.

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Laura Baudis @lbaudis.bsky.social · 06/03/2026

My way to work this week crossed one of my favorite parks in Tokyo ;)

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Laura Baudis @lbaudis.bsky.social · 25/02/2026

Teaching is a good excuse to read old Nobel lectures: “Most often experiments in physics are long and difficult. It takes some special tweaking of interest to make the commitment to a new area of research. The original motivation is, in the end, apt to appear naive.” Val L. Fitch, 1980

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Laura Baudis @lbaudis.bsky.social · 21/02/2026

If you're in the Zurich area, join us for a special Schrödinger Colloquium on Monday. “From Atoms to Cosmos” will celebrate 100 y of Schrödinger equation, bridging chemistry, physics and cosmology. A surprise quantum dance event will follow in the Lichthof, with Priscilla Roeck & Killian Haselbeck

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Laura Baudis @lbaudis.bsky.social · 14/02/2026

Yes I should prepare my lectures for next week (semester start), I should read a PhD thesis, among others… but this was my main project for today - happy valentines ;)

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Laura Baudis @lbaudis.bsky.social · 14/02/2026

Nice article, by Adam Begley, about Julian Barnes and his new book, Departure(s), in the @theatlantic.com “We must believe in love, just as we must believe in free will and objective truth.”

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Laura Baudis @lbaudis.bsky.social · 08/02/2026

A new run with Xenoscope, a 2.6 m tall, two-phase xenon tome projection chamber, will start soon. Now the TPC is being reassembled and it looks almost like new ;-)

Xenoscope, a tall xenon TPC, and its support structure

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Laura Baudis @lbaudis.bsky.social · 03/02/2026

Muons are wonderful particles. Happy to be part of the new National Centre of Competence in Research "Muoniverse" www.muoniverse.ch, hosted by PSI & UZH. Muoniverse is one of the six funded new centres (www.wbf.admin.ch/en/newnsb/JE...), connecting science, engineering and arts. More details soon!

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Laura Baudis @lbaudis.bsky.social · 01/02/2026

The first LEGEND-200 results are now published in @physrevlett.bsky.social journals.aps.org/prl/abstract... No evidence for neutrinoless double beta decay, with a lower limit on the 76-Ge half-life of 1.9 x 10^26 y. This corresponds to an upper limit on the Majorana ν mass of m_ββ < 75 - 200 meV

The energy spectrum of the first LEGEND-200 dataset, corresponding to 61.0 kg yr of germanium exposure, above the 39-Ar 𝑄_𝛽 =565 keV. The white histogram shows events passing quality and muon anticoincidence cuts and with energy deposited in one single HPGe detector. The main radioactive background contributors are indicated in green. The gray and red histograms show the subsets of events passing the PSD cut and additionally the LAr anticoincidence cut, respectively. The inset shows a close-up around the region of interest for 0⁢𝜈⁢𝛽⁢𝛽 decay with finer binning. The expected contribution from the 2⁢𝜈⁢𝛽⁢𝛽 decay of 76-Ge corresponds to the solid blue line. The events used to set a constraint on the 0⁢𝜈⁢𝛽⁢𝛽 decay rate are contained by the analysis window, marked in green. Only two significant 𝛾 peaks (shaded areas) are expected within this window, and the corresponding 10 keV wide energy regions are excluded from the statistical analysis.

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IOP Publishing @ioppublishing.bsky.social · 11/01/2026

Using the Hubble Space Telescope 🔭, a team of astronomers have discovered a starless, gas-laden dark matter cloud believed to be a relic from the dawn of galaxy formation - the first verified discovery of its kind anywhere in the Universe ☁️. Check it out: ow.ly/e0WV50XT9Og #astronomy

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Megan Watzke @mwatzke.bsky.social · 06/01/2026

It moves! We can watch as the Kepler supernova remnant changes over a quarter of century in X-rays from Chandra. #aas247 chandra.si.edu/photo/2026/k...

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Architecture @architecture.bsky.social · 28/12/2025

This spectacular image of the planetary alignment of Saturn, Mars, Venus, and Jupiter above the Sydney Opera House was taken in the early morning around April 21, 2022, and featured as NASA's Astronomy Picture of the Day on April 26, 2022

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Robert Garisto @robertgaristo.bsky.social · 23/12/2025

Our colleague Katherine Wright, who began as an editor for PRL and went on to explore her passion as a great writer for @physicsmagazine.bsky.social, passed away this fall from cancer, far too young. Here is a tribute to her: physics.aps.org/articles/v18...

physics.aps.org

In Memory of Katherine Wright | Physics Magazine

We pay tribute to our friend and colleague, whose journalistic talent and commitment to inclusivity left an indelible mark on Physics Magazine.  

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Laura Baudis @lbaudis.bsky.social · 10/12/2025

If you're in Zurich, join us for today's Physics Colloquium at the @ethz.ch campus: Prof. Teresa Montaruli, from Université de Genève, will talk about "The Future of the Highest Energy Astrophysics with Gamma-Rays and Neutrinos" colloquium.phys.ethz.ch/programme/cu...

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Laura Baudis @lbaudis.bsky.social · 13/10/2025

Beautiful day in Zurich for the start of the 10 Years of mesoSPIM workshop at the Careum this morning: www.ema.uzh.ch/en/register/... - organised by @mesospim.bsky.social

ema.uzh.ch

The mesoSPIM 10-year Symposium

Day 1: Monday, October 13-th , Day 2: Tuesday, October 14-th, Day 3: Wednesday, October 15-th | Careum Auditorium

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PHD Comics @phdcomics.com · 09/10/2025

Study for life

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Laura Baudis @lbaudis.bsky.social · 08/10/2025

Reading another famous Nobel Lecture, from 1961, for my introductory lecture to electron-nucleus and electron-nucleon scattering this morning (#KT-I) www.nobelprize.org/prizes/physi...

Extract from Robert Hofstadter's Nobel Lecture on "The Electron-Scattering Method and Its Application to the Structure of Nuclei and Nucleons"

Electron-proton scattering: cross section versus scattering angle for 188 MeV electrons. Theoretical curves and experimental data.

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Raphael Bousso @bousso.bsky.social · 08/10/2025

Congratulations to my wonderful colleague John Clarke! And to Berkeley, and to UC. And to everyone who still believes that foundational research is worth investing in

ls.berkeley.edu

John Clarke, UC Berkeley emeritus professor, awarded 2025 Nobel Prize in Physics | Letters & Science

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Laura Baudis @lbaudis.bsky.social · 07/10/2025

Congratulations to John Clarke, Michel H. Devoret and John M. Martinis! Very good news for quantum sensor based dark matter experiments :)

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