#baryons — Public Fediverse posts

The #LargeHadronCollider Discovers Mysterious #Antimatter #Physics
The #LHCb experiment has observed a new difference between matter and antimatter in particles called #baryons
Our best theories suggest that when universe was born it had equal amounts of matter and antimatter, and when the two made contact, they annihilated one another. For some reason, a small excess of matter survived and went on to create the physical world. Why? No one knows.
https://www.scientificamerican.com/article/the-large-hadron-collider-discovers-antimatter-behaving-oddly-in-new-class/
https://archive.ph/a7VB3

One of the Universe’s Biggest Mysteries Has Been Solved, Scientists Say
Scientists have spotted the universe’s “missing matter” hiding in a vast cosmic web with some help from #fastradiobursts from deep #space.
Now, a team has revealed that about 76% of all #baryons—the ordinary #particles that make up planets and stars—exist as gas hidden in the dark expanses between galaxies, known as the intergalactic medium.
https://www.404media.co/one-of-the-universes-biggest-mysteries-has-been-solved-scientists-say/

Mysterious #Antimatter #Physics Discovered at the Large Hadron Collider
The #LHCb experiment has observed a new difference between matter and antimatter in particles called #baryons

https://www.scientificamerican.com/article/the-large-hadron-collider-discovers-antimatter-behaving-oddly-in-new-class/

A gas rich cosmic web revealed by partitioning the missing #baryons: https://arxiv.org/abs/2409.16952 -> Scientists have spotted the universe’s “missing matter” hiding in a vast cosmic web with some help from fast radio bursts from deep space: https://www.404media.co/one-of-the-universes-biggest-mysteries-has-been-solved-scientists-say/

"People, planets & stars are made of #baryons. #DarkMatter, on the other hand, is a mysterious substance that makes up the bulk of the matter in the #universe. We do not know what new particle or substance makes up dark matter. We know exactly what the ordinary #matter is, we just didn't know where it was," Connor said.

#science #astronomy #physics #astrophysics

The researchers found that a smaller slice of the missing #matter resides in the halos of diffuse material surrounding #galaxies….

Ordinary matter is composed of #baryons, which are the subatomic particles protons & neutrons needed to build atoms.

#science #astronomy #physics #astrophysics

Ordinary matter is composed of #baryons, which are the subatomic particles protons and neutrons needed to build atoms. About 76% 📊 resides in #intergalactic space, about 15% in #galaxy halos and the remaining 9% concentrated within #galaxies 🌌, primarily as #stars or gas. https://www.reuters.com/science/astronomers-locate-universes-missing-matter-2025-06-16

#Astronomy

😆 Three #physicists think they've outsmarted the #universe by suggesting dead stars emit Hawking radiation like black holes. They claim it'll make everything vanish faster, but conveniently forget about those stubborn #baryons not playing along. 🚀✨ Maybe next time, they should try solving the mystery of disappearing socks instead! 🧦🔍
https://johncarlosbaez.wordpress.com/2025/05/17/dead-stars-dont-radiate-and-shrink/ #HawkingRadiation #blackholes #humor #disappearingSocks #HackerNews #ngated

⚛️ Baryons might not be playing by the rules.
New research finds signs that matter and antimatter don’t behave symmetrically.
It could explain why the universe didn’t vanish at birth.

→ Focus is on baryons like protons and neutrons
→ Big implications for cosmology and the Standard Model

🧪 Full paper: https://buff.ly/Ffnp8xZ

#Physics #Antimatter #Baryons

Physics Today covers appreciation post

A Rule for the Cosmos (2017)

Feature article by Will J. Percival on Baryon Acoustic Oscillations as a Cosmological Ruler
https://doi.org/10.1063/PT.3.3789

#cosmology #physics #physicstoday #cover #covers #BAO #baryon #acoustic #oscillations #galaxies #darkenergy #acousticwaves #waves #universe #origin #telescopes #leptons #baryons #astronomy #astrophysics #astrodon #science #STEM