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Right After The Big Bang

#Antimatter #QuarkGluonPlasma #Dirac Antimatter has fascinated physicists since it was predicted by Paul Dirac in 1928 and soon after observed by studying the tracks of cosmic ray particles in a cloud chamber, in 1932, by Carl Anderson. Naively we might expect that the amount of ordinary matter, of which we are comprised, should be equal to the amount of antimatter. Yet we don't observe that...if we did, If antimatter and matter were produced in equal amounts in the universe, they would have annihilated and just left radiation behind. we wouldn't be here to wonder why we do not observe it! The results from RHIC don’t answer that question directly. But exploring asymmetries in extreme matter, similar to the type that prevailed shortly after the Big Bang, gives scientists a way to test ideas about how a symmetry violation underpinning and illuminating how the matter-antimatter asymmetry arises at a fundamental level. Physicists from the STAR Collaboration of the Relativistic Heavy Ion Collider (RHIC), a U.S. Department of Energy (DOE) Office of Science user facility for nuclear physics research at DOE’s Brookhaven National Laboratory, recently showed how the strength of the magnetic field generated in certain collisions affects the particles streaming out. This is important because, as the researchers say, In heavy-ion collisions, an exciting possibility is that regions may be briefly formed in which parity (P) and charge-parity (CP) symmetries are locally violated by the strong interaction. This would lead to an imbalance between the numbers of right- and left-handed (anti-)quarks. It is demonstrated that if a sufficiently strong (electro-)magnetic field exists in such a region (as it may be in off-center heavy-ion collisions, generated chiefly by the protons in the two nuclei the net effect would be a separation of charges along the direction of the magnetic field. This separation of charges is called the Chiral Magnetic Effect (CME). If an observation of the CME could be clearly established in heavy-ion collisions, it would imply the existence of these CP-violating regions, the restoration of the approximate chiral symmetry in the Quark Gluon Plasma (QGP) medium, similar to that thought to prevail in the first few seconds after the Big Bang. The experiment failed designed to look for evidence of a predicted physics phenomenon known as the “chiral magnetic effect.” It didn’t come out as initially predicted, but that is ok, since it helps us understand CP-violation a bit better and that helps us understand matter-antimatter asymmetry, since CP violation is a prerequisite for Baryogenesis (one of the three Sakharov conditions). But even without a definitive signal supporting the existence of the chiral magnetic effect (CME), the experiment provides useful information, such as clues about where to look— including in other RHIC data. Along the way, we take a deep dive and explain how even so-called 'null results' -- non-detections - can actually be a good thing, illuminating the path forward for future experiments to follow! Popular description of the new RHIC Results: https://www.bnl.gov/newsroom/news.php... Technical description: https://arxiv.org/pdf/2109.00131.pdf 📺 Watch my most popular videos:📺 A New Contender is Here!    • A New Contender Is Here!   Frank Wilczek    • Nobel Prizewinner Frank Wilczek: Beau...   Weinstein and Wolfram    • Stephen Wolfram vs. Eric Weinstein: M...   Sheldon Glashow:    • Sheldon Glashow: The Power of Useless...   Michael Saylor The Physics of Bitcoin    • Michael Saylor: The Physics of Bitcoi...   Sir Roger Penrose, Nobel Prize winner:    • Nobel Prize in Physics, Black Holes a...   Jill Tarter    • Jill Tarter: Time to Stop SETI?   Sara Seager Venus LIfe:    • Did Scientists Discover Life on Venus...   Noam Chomsky:    • Noam Chomsky: Consciousness, Elon Mus...   Sabine Hossenfelder:    • Sabine Hossenfelder: That New Theory ...   Sarah Scoles:    • Sarah Scoles, Author of “They Are Alr...   Stephen Wolfram:    • Has Stephen Wolfram discovered a new ...   Be my friend: 🏄‍♂️ Twitter:   / drbriankeating   🔔 Subscribe https://www.youtube.com/DrBrianKeatin... ✍️Detailed Blog posts here: https://briankeating.com/blog.php 🎙️Listen on audio-only platforms: https://briankeating.com/podcast.php A production of http://imagination.ucsd.edu/ Support the podcast:   / drbriankeating   Credits: Thanks to UCSD's StudioU's Treb Padula ~-~~-~~~-~~-~ Please watch: "Neil DeGrasse Tyson: Plays the Race Card!"    • Neil DeGrasse Tyson Hit Me With the R...   ~-~~-~~~-~~-~