A pentaquark is a human-made subatomic particle, consisting of four quarks and one antiquark bound together; they are not known to occur naturally, or exist outside of experiments specifically carried out to create them. As quarks have a baryon number of ++1/3, and antiquarks of −+1/3, the pentaquark would have a total baryon number of 1, and thus would be a baryon. Further, because it has five quarks instead of the usual three found in regular baryons (a.k.a. 'triquarks'), it is classified as an exotic baryon. The name pentaquark was coined by Claude Gignoux et al. (1987) and Harry J. Lipkin in 1987; however, the possibility of five-quark particles was identified as early as 1964 when Murray Gell-Mann first postulated the existence of quarks. Although predicted for decades, pentaquarks proved surprisingly difficult to discover and some physicists were beginning to suspect that an unknown law of nature prevented their production. The first claim of pentaquark discovery was recorded at LEPS in Japan in 2003, and several experiments in the mid-2000s also reported discoveries of other pentaquark states. However, other researchers were not able to replicate the LEPS results, and the other pentaquark discoveries were not accepted because of poor data and statistical analysis. On 13 July 2015, the LHCb collaboration at CERN reported results consistent with pentaquark states in the decay of bottom Lambda baryons (Λ0b).On 26 March 2019, the LHCb collaboration announced the discovery of a new pentaquark that had not been previously observed. On 5 July 2022, the LHCb collaboration announced the discovery of the PΛψs(4338)0 pentaquark. Outside of particle research laboratories, pentaquarks might be produced naturally in the processes that result in the formation of neutron stars. (Wikipedia).
Scientific research isn’t always simple; in fact, it’s often like rummaging around an unfamiliar room in the dark while wearing a blindfold. Under such conditions, it is inevitable that we have to make guesses about what we encounter. Sometimes those guesses turn out to be right and some
From playlist Speculative Physics
Dr Tony Padilla on the pentaquark discovery. More videos from the LHC: http://bit.ly/LHCvideos Our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from Th
From playlist Large Hadron Collider - Sixty Symbols
What Are Pentaquarks and Why Are They So Rare?
In 2015, researchers at the Large Hadron Collider found data suggesting the existence of super-rare, super-elusive particles called pentaquarks. Tara Shears explains how our investigation into these particles has the potential to revolutionise our lives in every aspect. Subscribe for regul
From playlist #WomenInSTEM at the Ri
New Subatomic Particles Are Shifting the Standard Model of Physics
The Large Hadron Collider just discovered a new pentaquark, but how does it fit in our current understanding of the Standard Model? Could Everything We Know About String Theory Be Wrong? - https://youtu.be/gVcwcaI_viQ Read More: LHCb experiment discovers a new pentaquark https://home.ce
From playlist Elements | Season 4 | Seeker
Particle Physics Discoveries that Disappeared
Invest in yourself! Use my link and check out the first chapter of any course for FREE! https://bit.ly/2Pcgnxa Particle physicists seem to constantly announce discoveries which then disappear. What is going on? How seriously are you to take the recently announced Fermilab muon g-2 anomal
From playlist Prob and Stats
3 Subatomic Stories: Charged leptons
The most familiar subatomic particle is the electron, which is a member of a class of particles called the charged lepton. In addition, there are two cousin particles, the muon and the tau lepton. In this video, episode 3 of the Subatomic Stories series, Fermilab’s Dr. Don Lincoln takes us
From playlist Subatomic Stories
Pluto the Boring Non-Planet - Sixty Symbols
A mix of views on Pluto and its non-planet status. Astronomers Mike Merrifield and Meghan Gray, and office mate Tony Padilla who is a particle physicist and bit of a stirrer! Pluto and Plutonium: https://www.youtube.com/watch?v=498pOIm8Qbc Our first Pluto video: https://www.youtube.com/wat
From playlist Tony Padilla - Sixty Symbols
Groundbreaking Proton Discovery That May Rewrite Science Textbooks
Get a Wonderful Person shirt: https://teespring.com/stores/whatdamath Classic Mars design is on Amazon:https://amzn.to/3wDGy2i Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath Hello and welcome! My name is Anton and in this video, we will talk about a new grou
From playlist Physics
mandelbrot fractal animation 5
another mandelbrot/julia fractal animation/morph.
From playlist Fractal
This video was filmed in https://www.roblox.com/games/8157896225/Tessell-Tunes-metauni as part of a series of seminars and events happening every Thursday AEDT. See https://www.metauni.org for more details.
From playlist Metauni
Friday Summing Up - G. Motzkin, Moderator - 4/26/19
On April 26-27 2019, the Division of Humanities & Social Sciences at Caltech hosted a conference in honor of Jed Z. Buchwald, “Looking Back as We Move Forward: The Past, Present, and Future of the History of Science.” This event was sponsored by the Division of the Humanities & Social Sci
From playlist Looking Back as We Move Forward - A Conference in Honor of Jed Z. Buchwald - 4/26-27/2019
The Mandelbrot set is a churning machine
Its job is to fling off the red pixels and hang onto the green ones. Audio by @Dorfmandesign
From playlist mandelstir
Richard Kerner - Geometry, Matter and Physics
We show how the fundamental statistical properties of quantum fields combined with the superposition principle lead to continuous symmetries including the $SL(2,\mathbb C)$ group and the internal symmetry groups $SU(2)$ and $SU(3)$. The exact colour symmetry is related to ternary $\mathbb
From playlist Combinatorics and Arithmetic for Physics: special days