Axel Maas
banner
axelmaas.bsky.social
Axel Maas
@axelmaas.bsky.social
Professor for Theoretical Particle Physics at University of Graz (Austria). QFT, Higgs, BSM and quantum gravity. Views are my own.

Also doing my best for a safe and liveable world for everyone.

He/Him. Others may apply in the future.
This semester the new semester started, and especially with a block course on introductory math, and this shows #ProfAtWork

Teaching in a classroom: 34.6%

Email (mostly administration): 15.2%

Working directly with PhD/Master/Bachelor student: 8.6%
Administration: 8.1%
Teaching preparation: 6.0%
This month, I was basically in office without any events and obligations, and this shows in the numbers 😊 #ProfAtWork

Email (mostly administration): 18.3%
Research by myself: 15.7%
Working directly with PhD/Master/Bachelor student: 14.4%
Writing papers: 12.5%

Teaching preparation: 8.3%
This month I was still partly on holiday but since activism needs to become an integral part also of scientific work to keep continuing doing research and education in the polycrisis, it also took a large portion of this month. In particular by attending the #Kollapscamp the last few days.
November 6, 2025 at 8:56 AM
Very substantial progress. There are new ceilings, and it is almost at street level. I even heard that soon again trucks will drive over these ceilings, to deliver parts and materials. Gives you a bit of trust into the stability #GCP
November 6, 2025 at 8:47 AM
Welcome Slaven Djukic, who will do a master thesis with @simonplaetzer.bsky.social and myself on multi-boson physics at current and future colliders - particle.uni-graz.at/en/structure...
Structures and Observables - Axel Maas - particle.uni-graz.at
We investigate the concepts of quantum field theory, in particular gauge theories, using analytical methods and large-scale numerical simulations.
particle.uni-graz.at
November 4, 2025 at 2:19 PM
Our second #EPSHEP proceeding is now available at arxiv.org/abs/2510.27457

We confirm, for the first time unquenched, what has been predicted 45 years ago by Fröhlich, Morchio, and Strocchi: A bound state of a Higgs an a light lepton (with some technical details) is much lighter than the Higgs.
Spectrum of the SU(2) scalar-fermion-gauge system under the influence of the Brout-Englert-Higgs effect
Gauge invariance requires physical states to be composite, even in the weak sector of the Standard Model (SM). The Fröhlich-Morchio-Strocchi (FMS) mechanism resolves this subtlety and predicts additio...
arxiv.org
November 3, 2025 at 7:00 PM
Feeling this. Just being one in a long line in history.
Academics in Assyria in the 7th c BC complain that admin is preventing them from doing research and teaching
November 3, 2025 at 1:46 PM
#TalkCollapse: What needs to factor into all our significant decisions.
The 2025 State of the Climate Report is out and as a MUST READ before COP30 gets underway. Check out these first 2 sentences: "We are hurtling toward climate chaos. The planet’s vital signs are flashing red. "
doi.org/10.1093/bios...
The 2025 state of the climate report: a planet on the brink
We are hurtling toward climate chaos. The planet's vital signs are flashing red. The consequences of human-driven alterations of the climate are no longer
doi.org
November 3, 2025 at 1:10 PM
On my way to Vienna to discuss our final contribution to the European Strategy for particle physics update. Especially, what we would prefer if option a, most likely the #FCC would not be possible.

Sadly, especially Vienna did again numbers for Covid, and thus #TheMaskStaysOn.
November 2, 2025 at 4:37 PM
Reposted by Axel Maas
AXA and Ipsos have published the 12th edition of the Future Risks Report, a report based on a global survey of 23,000 citizens and 3,595 risk experts.
What do both experts and citizens rank as greates risk?
*** Climate change ***
So do I, after over 35 years experience in climate science.
October 31, 2025 at 9:41 AM
Drop by, I will also be there.
Next Friday we are celebrating the inauguration of the Marietta Blau Institute for Particly Physics! 🤩 🥳

🖍️ Haven’t signed up yet? Now’s the time!
➡️ www.oeaw.ac.at/mbi/veransta...
October 30, 2025 at 5:16 PM
Our proceedings for the #EPSHEP conference are now openly available at arxiv.org/abs/2510.21248

While mostly summarizing arxiv.org/abs/2504.11047 they also discuss that the Brout-Englert-Higgs effect appears to also work in gravity. And that may explain why we do not see #SuperSymmetry.
Composite objects in quantum (super)gravity
It has been a long entertained idea that self-bound gravitons, so-called geons, could be a dark matter candidate or form (primordial) black holes. The development of viable candidates for quantum grav...
arxiv.org
October 29, 2025 at 9:48 AM
I am griefstruck by this. This is what the #ClimateCollapse amplifies. It hits, currently, those worst who had done little to cause it.

Become aware of what is coming. This is only the beginning, and we need to be prepare together, and leave no one behind.

www.commondreams.org/news/jamaica...
'Jamaica Will Be Unrecognizable After This': Hurricane Melissa Erupts Into Category 5 'Monster' | Common Dreams
One hurricane historian said the world is "witnessing history on satellite right now" as the people of Jamaica came under evacuation orders and braced for impact of a storm that threatens severe flood...
www.commondreams.org
October 27, 2025 at 3:28 PM
The CERN family grows 😊
CERN welcomes Ireland as an Associate Member State

Read more: home.cern/news/news/ce...
October 22, 2025 at 1:14 PM
I signed this. Any inroad to slow down the #ClimateCollapse, now matter how small, needs to be taken. We are running out of time.
Open Letter by scientists to the Council:
"Climate Neutrality Is Europe’s Greatest Economic Opportunity”.
Ahead of the European Council meeting on 23.10.2025,
2,178 scientists urge EU Heads of States & Governments to take ambitious decisions for the 2040 targets.
zenodo.org/records/1739...
October 21, 2025 at 12:27 PM
Thread. So, now also my own field of particle physics.

Never think your own field is safe, because it is not political. As long as someone is not safe, none of us are.
SCIENCE POLICY NEWS:

During Yom Kippur, all the members of the High Energy Physics Advisory Committee (HEPAP), myself included, received a letter thanking us for our service and telling us essentially that the almost 40 yo standing federal advisory committee was no more. ⚛️🧪🔭

Why that matters 🧵
DOE Consolidates Office of Science Advisory Committees
Six long-standing committees advising the Department of Energy’s Office of Science have been rolled into one.
www.aip.org
October 15, 2025 at 6:22 PM
Same as has been recently discussed for Germany by my own scientific association, the German Physical Society, here for the British Island, this time from an insurer.

Not to mention that this is already reality, not possibility, in many places outside Europe.

www.theguardian.com/environment/...
Towns may have to be abandoned due to floods with millions more homes in Great Britain at risk
Every constituency projected to be at greater risk, with many areas likely to be uninsurable, Guardian investigation finds
www.theguardian.com
October 14, 2025 at 9:19 AM
Mars Rover Cew Chief.

If you want cool science, you need also to have a decent political system. A government run on hate and greed will never bring you the stars, or our origins, or our next cure. Everything big is, and was, a community effort.
We are all so incredibly tired. The cuts keep coming, the damage to our teams keeps compounding, yet we somehow keep the missions going. Ashley, Abby and I were all on shift together on MSL today. I hope it wasn’t for the last time.
October 14, 2025 at 6:58 AM
An analysis of the publishing model "publish, then review" - which we basically, though less intentional that the journal in question, do already with the arXiv.

From my day-to-day life, I would think this to be usable and, in fact, superior to "review, then publish'. But this is anecdotal.
“We used the empirical results of our study to recommend several improvements to the new publishing model introduced by eLife as for example, increasing transparency, masking author identity or increasing the number of expert reviewers”

link.springer.com/article/10.1...
Scientific publishing without gatekeeping: an empirical investigation of eLife’s new peer review process - Scientometrics
At the end of January 2023, eLife introduced a new publishing model (alongside the old-traditional-publishing model): all manuscripts submitted as preprints are peer-reviewed and published if they are deemed worthy of review by the editorial team (“editorial triage”). The model abandons the gatekeeping function and retains the previous “consultative approach to peer review”. Even under the changed conditions, the question of the quality of judgements in the peer review process remains. In this study, the reviewers’ ratings of manuscripts submitted to eLife were examined in terms of both descriptive comparisons of peer review models, and the following selected quality criteria of peer review: interrater agreement and interrater reliability. eLife provided us with the data on all manuscripts submitted in 2023 according to the new publishing model (group 3, N = 3,846), as well as manuscripts submitted according to the old publishing model (group 1: N = 6,592 submissions from 2019; group 2: N = 364 submissions from 2023). The interrater agreement and interrater reliability for the criteria “significance of findings” and “strength of support” were similarly low, as previous empirical studies for gatekeeping journals have shown. The fairness of peer review is not or only slightly compromised. We used the empirical results of our study to recommend several improvements to the new publishing model introduced by eLife as for example, increasing transparency, masking author identity or increasing the number of expert reviewers.
link.springer.com
October 9, 2025 at 12:09 PM
Done with this year's Covid shot. And with wastewater signals steadily on the rise, masking up becomes nonetheless important again when close to people, as #CovidIsNotOver, and I do not have time for long Covid, nor am willing to put anyone at risk.
October 8, 2025 at 9:17 AM
I am very afraid of that. I want to trust people.

Also, this means that whoever does not like you can distribute to everyone videos showing you doing horrible things or saying things contrary to who and what you are.

We really need to connect so much more offline.
this! legitimate, trusted, and verifiable knowledge/reality are becoming a thing of the past
Sora is not the real problem here. The real problem is that in 12, at most 24 months, there will be a Sora clone from Tencent or Alibaba that is just as good and can be run by anybody with a 5099, at which point everyone in society needs to rapidly agree to treat all digital video as fake, period.
October 7, 2025 at 11:42 AM
This month, I was basically in office without any events and obligations, and this shows in the numbers 😊 #ProfAtWork

Email (mostly administration): 18.3%
Research by myself: 15.7%
Working directly with PhD/Master/Bachelor student: 14.4%
Writing papers: 12.5%

Teaching preparation: 8.3%
This month I was still partly on holiday but since activism needs to become an integral part also of scientific work to keep continuing doing research and education in the polycrisis, it also took a large portion of this month. In particular by attending the #Kollapscamp the last few days.
With being half the time on holidays, and a significant chunk of the rest being at #EPSHEP, the splitting is quite different than usual ;)

Attending (and giving) talks: 34%

Email (mostly administration): 12.5%
Catching up on the arXiv: 11.9%

Working directly with PhD/Master/Bachelor student: 9.2%
October 3, 2025 at 7:05 AM
The construction makes good progress. You really can see already complete rooms, different floors, and everything #GCP
October 3, 2025 at 6:59 AM
Welcome all our new (and returning!) students @uni-graz.at

In particular, of course, our new physics students, who I had the pleasure and honor to already give a lecture for this morning! Looking forward to many more interactions with you in this semester!
October 1, 2025 at 8:00 AM
#ClimateCollapse is happening, and we need to get our act together. Be #CollapseAware. Which does not mean despair, but act and save, #LeaveNoOneBehind

Here, brought to you with contributions of my professional association, the German Physical Society, though in German.
Informationen zu den aktuellen neuen Erkenntnissen & dem Aufruf der Deutschen Meteorologischen Gesellschaft und der Deutschen Physikalischen Gesellschaft (die wissenschaftliche Perspektive).
Das ist diesmal ein etwas längerer Post. Weil die Lage ernst ist.

#szenarien #3Grad #medienklimakrise
September 25, 2025 at 7:47 AM
Very important advise on how to deal with misinformation and lies, when confronted with them.

Of course, works even better if you have enough background knowledge. But even if not, never start or end with repeating the misinformation/lie, at most in an embedding about what actually is going on.
i would again like to remind everyone that NEGATING A FRAME REINFORCES IT

"he's not really targeting criminals" makes it an argument about criminality

"this is a fascist attack" states what is actually happening

START WITH WHAT IT IS
not what it isn't
September 25, 2025 at 7:41 AM
Can a future large-scale particle physics facility be environmentally sustainable? That is a very important question, if you want to do science responsibly and self-respecting .

This is a good question, and will certainly require a lot of developments, but here is a new open access assessment.
Hot off the press: Sustainability Assessment of Future Accelerators arxiv.org/abs/2509.11705
September 16, 2025 at 10:11 AM