venture capital reviewing NSF proposals ๐
18.12.2025 14:57 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0@ozamram.bsky.social
Postdoc at Fermilab working on working on particle physics + ML with CMS He/him https://ozamram.github.io/
venture capital reviewing NSF proposals ๐
18.12.2025 14:57 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0๐ฎ
18.12.2025 14:53 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0The 'sterile neutrino' explanation for the anomaly has been very dubious for a long time
I think various more exotic explanations are not ruled out, and could still be uncovered by MicroBoone or others
But maybe people's a priori credence in those explanations is less
Arcardia also holds a special place in my heart. Maybe caters to a theater + physics audience!
30.11.2025 03:52 โ ๐ 3 ๐ 0 ๐ฌ 0 ๐ 0(this album is so good)
www.youtube.com/watch?v=7HHg...
Screenshot of lyrics: [Verse 1] I was raised up believing I was somehow unique Like a snowflake distinct among snowflakes Unique in each way you'd conceive And now after some thinking I'd say I'd rather be A functioning cog in some great machinery Serving something beyond me
Fleet Foxes lyrics
Are somehow very relevant for life in HEP-ex ๐
We had these two striking 8 TeV dijet pairs events in Run 2, resulting in a 3.8sigma local excess
Unfortunately haven't seen any in Run3 yet ๐ซค
CepC proposal will not be included in Chinaโs next 5-year plan
cerncourier.com/cepc-matures...
Interesting, but seems like quite the exotic solution
15.10.2025 16:19 โ ๐ 0 ๐ 0 ๐ฌ 1 ๐ 0(not involved in this analysis, just think its cool)
23.09.2025 13:31 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0The search itself looks for 'heavy stable charged particles' which would move through detector so slowly that their signals don't show up we normally expect (in a diff bunch crossing)
Using this new data stream gives access to this potential signal which would otherwise be lost!
Very cool new analysis!
Due to the crazy data volume, standard data streams throw away >99.99% of collisions at the LHC
But what if we didn't have to?
For the first time CMS has performed a search using data processed on hardware in real time (40 million / sec) !
Great thread!
15.09.2025 20:38 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0In this letter, we have applied goofy transformations to the SM, thereby also extending them to include the fermion sector. We have shown that all SM interactions are invariant under the appropriate goofy transformations, while the Higgs-mass term is forbidden. Goofy symmetry can thus provide a new means to solve the hierarchy problem. Since, unlike shift symmetry, it is not broken explicitly by SM interactions, goofy symmetry renders a small Higgs mass technically natural in the โt Hooft sense. We also explored simple goofy-symmetric extensions of the SM, including a scalar singlet, vector-like fermions, and higher-dimensional operators, demonstrating how massive states can emerge via spontaneous goofy symmetry breaking. A typical prediction would be new states related to this symmetry breaking, such as a scalar singlet around the TeV scale. This could also furnish a dark matter candidate. It would be interesting to explore how further puzzles could be addressed in (extensions of) the goofysymmetric SM. Examples are the generation of a viable baryon asymmetry (potentially via an enlarged scalar sector, such as in III A, enhancing the electroweak phase transition), the strong CP problem, the generation of small neutrino masses, and the question of grand unification. Finally, also the mathematical foundations of goofy transformations, including connections to spacetime symmetries, and the mechanism of spontaneous goofy symmetry breaking should be further scrutinized on the way of establishing them as a route in model building.
Goofy, in awe of the nominative powers of theoretical physics.
From the most recent one:
"In this letter, we have applied goofy transformations
to the SM, thereby also extending them to include the
fermion sector. We have shown that all SM interactions
are invariant under the appropriate goofy transformations, while the Higgs-mass term is forbidden."
Yeah thats definitely a better way to put it
10.09.2025 21:19 โ ๐ 0 ๐ 0 ๐ฌ 0 ๐ 0Recently came across a petition for CERN to reconsider its relationship to Israel in light of the ongoing genocide in Gaza
1300+ signatures and counting
Encourage all my CERN affiliated colleagues to sign!
Welcome to the September/October edition of #CERNCourier
In this edition the future meets the past: the ongoing update to the European Strategy for Particle Physics, the outstanding discoveries of 1964, what may be the last chapter of the quarkonia story and much more.
Read more: cerncourier.com
And we're off! Yifan Chen welcomes students to the Machine Learning for Fundamental Physics School 2025!
04.08.2025 15:50 โ ๐ 6 ๐ 1 ๐ฌ 2 ๐ 0Now @ozamram.bsky.social discusses simple and advanced anomaly detection techniques in HEP
07.08.2025 21:14 โ ๐ 1 ๐ 1 ๐ฌ 1 ๐ 0If you liked the recent CMS anomaly detection search, check out this paper for more details & validations!
I particularly like this 'rediscovery' of boosted top quarks with anomaly detection!
Left = before AD, right = after AD
Happy this paper is finally on arxiv!
A fun mix of physics (jet substructure) being used to calibrate the performance of ML algorithms (jet taggers) to get proper uncertainties
Now a standard CMS tool for interpreting searches for exotic jets, used in multiple analyses
๐จGreat new Dataset article in #MLST๐จ
@kasieczka.bsky.social @mikraemer.bsky.social @ozamram.bsky.social & co-authors โprep 180M jets from pp collisions for easy AI training & use them to pre-train a foundation modelโ
#FoundationModels #ParticlePhysics #OpenData #LHC
Paper โก๏ธ bit.ly/4eE0QO1
Just click on this: skyviewer.app/explorer #RubinTelescope
24.06.2025 14:58 โ ๐ 529 ๐ 153 ๐ฌ 36 ๐ 25A sprawling, textured field of galaxies scattered across the deep black of space. It is filled with the delicate smudges and glowing cores of galaxies of many shapes, sizes and colors, as well as the bright multi-colored points of stars. The image focuses on a collection of interacting galaxies connected by delicate streams of stars. At top center lies a large elliptical galaxy that is dense and smooth, like a polished stone glowing with golden light. Like delicate spider silk or stretched taffy, these stellar bridges link the large elliptical to the few larger galaxies beneath, evidence of past collisions. All throughout the image, thousands of galaxies gather in clusters or are spread throughout, like glittering gems strewn on a table. Some are sharp-edged and spiral, like coiled ribbons; others round and diffuse, like polished pebbles. Still others are just smudges of various colors against the black of space. The background is peppered with pinpoint stars in reds, yellows, and blues, crisp against the velvet black.
A cosmic tapestry of glowing tan and pink gas clouds with dark dust lanes. In the upper right, the Trifid Nebula resembles a small flower in space. Its soft, pinkish gas petals are surrounded by blue gas, and streaked with dark, finger-like veins of dust that divide it into three parts. It radiates a gentle, misty glow, diffuse and soft like the warmth of breath on a cold hand. To the lower left, the much larger Lagoon Nebula stretches wide like a churning sea of magenta gas, with bright blue, knotted clumps sprinkled throughout where new stars are born. Both nebulae are embedded in a soft tan backdrop of gas that is brighter on the left than on the right, etched with dark tendrils of dust and sprinkled with the pinpricks of millions of stars.
A sprawling, textured field of galaxies scattered across the deep black of space. It is filled with the delicate smudges and glowing cores of galaxies of many shapes, sizes and colors, as well as the bright multi-colored points of stars. To the lower left is a region filled with the hundreds of golden glittering gems of a distant galaxy cluster. In the foreground, below and right of center, two blue spiral galaxies look like eyes beneath the entangled mass of a triple galaxy merger in the upper right. A few bright blue points of foreground stars pierce the glittering tapestry. All throughout the image, thousands of galaxies gather in clusters or are spread throughout, like glittering gems strewn on a table. Some are sharp-edged and spiral, like coiled ribbons; others round and diffuse, like polished pebbles. Still others are just smudges of various colors against the black of space. The background is peppered with pinpoint stars in reds, yellows, and blues, crisp against the velvet black.
Introducing...your sneak peek at the cosmos captured by NSFโDOE Vera C. Rubin Observatory!
Can you guess these regions of sky?
This is just a small peek...join us at 11am US EDT for your full First Look at how Rubin will #CaptureTheCosmos! ๐ญ๐งช
#RubinFirstLook
ls.st/rubin-first-look-livestream
ATLAS doesn't see them ๐
But we will have CMS results with Run-3 soon ! (hopefully)
So now it looks g-2, W mass, and R(K) are dead as anomalies
Anyone have a favorite alive anomaly?
R(D)? X17? (bolstered by recent PADME results ๐)
something else??
There was a week after everyone migrated that it seemed like it could be interesting over here but since then pretty dead ๐
12.06.2025 03:39 โ ๐ 1 ๐ 0 ๐ฌ 0 ๐ 0Scientists for Palestine is holding a school on quantum physics Palestinian students in Jordan in July, but they need donations to make it happen! ๐ต๐ธ
www.scientists4palestine.org/palestinian-...
www.gofundme.com/f/support-pa...
Wondered what it would take for AI agents to design and test new theories for fundamental physics, just like a physicist? We show how, an example in neutrino model building! Paper with Jake, Max, Victoria, Jason leading crucial aspects, also
@danielwhiteson.bsky.social
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arxiv.org/abs/2506.08080