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#particle

0 posts0 participants0 posts today
Ethan Siegel

The top quark isn’t a loner after all: “toponium” is real! The top quark is the most massive, shortest lived particle of all. But it isn't always a "bare quark" that just decays; the LHC just revealed that the bound state of "toponium" is real! bigthink.com/starts-with-... #physics #particle #top

The top quark isn't a loner af...

Big ThinkThe top quark isn't a loner after all: "toponium" is real!Can the top quark, the short-lived particle of all, bind with anything else? Yes it can! New results at the LHC demonstrate toponium exists.
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The Krononaut Moon Project 🌑

Could #Tachyons Exist? Breaking the #SpeedOfLight

❛❛ a popular notion floated around by proponents of Tachyons is that Tachyons could be used to transmit #signals back in time, which opens up the door to some interesting #paradoxes. ❜❜

🔗 youtube.com/watch?v=Eu1a9zXysw 2023 May 21
🔗 Wikipedia.org/wiki/Tachyon
🔗 Wikipedia.org/wiki/Gerald_Fein

YouTubeCould Tachyons Exist ? Breaking The Speed of LightBy The ScienceVerse
#Time#Timelessness#TimeTravel
Continued thread
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Daniel Pomarède

in the #arXiv

Beyond the Local Void: A comprehensive view on the origins of the Amaterasu particle

by Nadine Bourriche and Francesca Capel
arxiv.org/abs/2406.16483

arXiv.orgBeyond the Local Void: A comprehensive view on the origins of the Amaterasu particleWe use the reconstructed properties of the Amaterasu particle, the second-highest energy cosmic ray ever detected, to map out three-dimensional constraints on the location of its unknown source. We highlight possible astrophysical sources that are compatible with these regions and requirements. Among these, M82, a powerful starburst galaxy, stands out as a strong candidate due to its position and proximity. To derive our constraints, we use CRPropa 3 to model all relevant propagation effects, including deflections in the Galactic and extra-Galactic magnetic fields. We consider key input quantities such as source distance, position, energy, and the strength and coherence length of the extra-Galactic magnetic field as free parameters. We then infer constraints on these parameters by applying approximate Bayesian computation. We present our results, demonstrating the impact of different assumptions for the arrival mass of the Amaterasu particle and the systematic uncertainties on the energy scale.
#amaterasu#cosmic#ray
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