What does the Muon g-2 experiment tell us?

Ғылым және технология

The Muon g-2 experiment announced one of the most tantalizing physics measurements in over a decade. It is possible that the measurement tells us that our theoretical calculation is missing some new physical phenomena. It is also possible that a new theoretical prediction points to the possibility that measurement and prediction basically agree. In this exciting video, Fermilab’s Dr. Don Lincoln gives you an insider’s perspective.
Playlist describing the Fermilab Muon g-2 experiment
• Muon g-2
Videos about Quantum Electrodynamics
Quantum Field Theory
• Quantum Field Theory
Feynman Diagrams
• Feynman diagrams
Theoretical Physics: Insider’s Tricks
• Theoretical physics: i...
Quantum electrodynamics: Theory
• Quantum electrodynamic...
QED: experimental evidence
• QED: experimental evid...
The physics of g-2
• The physics of g-2
Nature papers on lattice QCD
Leading hadronic contribution to the muon magnetic moment from lattice QCD
www.nature.com/articles/s4158... (subscription required)
Is the standard model broken? Physicists cheer major muon result
www.nature.com/articles/d4158... (commentary, no subscription required)
Fermilab experimental paper on the muon magnetic moment
Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
journals.aps.org/prl/abstract... (technical paper)
Muon’s Escalating Challenge to the Standard Model
physics.aps.org/articles/v14/54 (popular science article)
Fermilab press release:
news.fnal.gov/2021/04/first-r...
Fermilab physics 101:
www.fnal.gov/pub/science/part...
Fermilab home page:
fnal.gov

Пікірлер: 548

  • @_vicary
    @_vicary3 жыл бұрын

    Finally, Don has spoken.

  • @oreokid101v2
    @oreokid101v23 жыл бұрын

    You've been explaining the recent happenings in the world of physics to me since I was a 12 year old boy. I'm now a 23 year old man with a bachelor's in physics and I feel even further from my dreams of contributing to experimental or theoretical physics in any significant capacity. I'll see you in a few years, hopefully with a PhD. :)

  • @oreokid101v2

    @oreokid101v2

    3 жыл бұрын

    @@jeffallen3382 Yeah, I'm not very active in the comments section 😅

  • @valentinmalinov8424

    @valentinmalinov8424

    3 жыл бұрын

    If is too difficult to make a contribution to experimental physics, why you do not try theoretical physics? The fact is that in the last 100 years there is no significant advance in the understanding of the fundamental elements as - What Energy is; What Electromagnetism is; What Time is; What Space is...Anyway, they are looking for a new physics, which can unify QM and TOR. Why you have not read my book - "Theory of Everything in Physics and The Universe"? It is possible that there you can find an idea for your great theoretical discovery, which will make you a great scientist. You will never succeed if you never try!

  • @kumar-qb2pe

    @kumar-qb2pe

    3 жыл бұрын

    @@valentinmalinov8424 yeah I'm also fascinated to think about these fundamentals from childhood and now I'm working in that way

  • @jansenart0

    @jansenart0

    3 жыл бұрын

    Learn controls engineering. There's no money in physics.

  • @valentinmalinov8424

    @valentinmalinov8424

    3 жыл бұрын

    @@kumar-qb2pe Very good! Keep going questioning the proposed scenarios with facts and logic and one day inevitably you will succeed to produce something unique and valuable. I will suggest you tackle this problem - What is this force, which is bending Einstein's space? Where is its origin and where it is going after bending Space?

  • @SlowToe
    @SlowToe3 жыл бұрын

    After all the hype I was waiting for Don's take on it. I'm not disappointed. Clearly explained with a pinch of charm.

  • @user-ex1fq6oz4p

    @user-ex1fq6oz4p

    3 жыл бұрын

    He is the best!

  • @hajorm.a3474

    @hajorm.a3474

    3 жыл бұрын

    Charismaaa

  • @franksavage1499

    @franksavage1499

    3 жыл бұрын

    Yeah, I really can't understand why there is not millions of subscribers to this channel, this is so good, fun and easy to understand content :)

  • @drdon5205

    @drdon5205

    3 жыл бұрын

    @@franksavage1499 Tell all your friends to subscribe!

  • @franksavage1499

    @franksavage1499

    3 жыл бұрын

    @@drdon5205 I will, I have shared a few videos and know that some of my friends have watched them :)

  • @tommylakindasorta3068
    @tommylakindasorta30683 жыл бұрын

    This is masterful science communication. I don't know who at the Fermilab office asked you to do the KZread channel, Dr. Don, but you have truly found your calling. You and everyone behind the scenes who's involved.

  • @beeheart6529

    @beeheart6529

    Жыл бұрын

    I agree! I’ve tried for years to learn about subatomic particles with no success until I found this teacher!

  • @fikretonderbudakin2643

    @fikretonderbudakin2643

    3 ай бұрын

    Earth's gravitational waves contribute positively to the spin and kinetic energy of fermions. For this reason, since the muon is heavier than the electron, the muon has more magnetic power than the electron. Different laboratories around the world produce different results due to the different 'gravitational acceleration'. If the experiment were carried out in space, it would probably give the same result as the theory.

  • @MitzvosGolem1
    @MitzvosGolem13 жыл бұрын

    Former BNL employee worked on that magnet on Long island NY . Proud 🤗

  • @davio14
    @davio143 жыл бұрын

    The thing I love about Don's videos is how he stresses that in science, finding new questions can be as exciting as finding answers. A result which tells us "we don't know, we need to do more research" is actually a great result.

  • @theeniwetoksymphonyorchest7580

    @theeniwetoksymphonyorchest7580

    Ай бұрын

    In some ways science is about finding better questions.

  • @AmbivalentMind
    @AmbivalentMind3 жыл бұрын

    I could listen to him lecturing for hours. ☺️

  • @fantasia55

    @fantasia55

    2 жыл бұрын

    and I do!

  • @sudeeptaghosh

    @sudeeptaghosh

    2 жыл бұрын

    until my small brain overload..😥

  • @AnotherGlenn
    @AnotherGlenn3 жыл бұрын

    This channel is a gem. I have been repeatedly impressed by the content. It seems as though it would be digestible by a wide audience, despite the complexity of the subject matter. This video was particularly well made.

  • @SuperStingray
    @SuperStingray3 жыл бұрын

    Professor Frink: "g is exactly 2!" Audience: *gasps* Frink: "Very sorry that it had to come to that."

  • @lk9650
    @lk96503 жыл бұрын

    Finally, a video we've all been waiting for.

  • @gardenlizard1586
    @gardenlizard15863 жыл бұрын

    Congrats to Fermi Lab on achievement

  • @turkfiles
    @turkfilesАй бұрын

    Dr. Lincoln is such a great teacher. His delivery is always enjoyable and very informative. The G-2 uncertainty has been cycling through my mind since first becoming aware of it.

  • @joshuaadamstithakayoutubel2490
    @joshuaadamstithakayoutubel24903 жыл бұрын

    Thank you for explaining this

  • @chriszachtian
    @chriszachtian3 жыл бұрын

    Thanks Dr. Don, this was great - and long expected!

  • @plexiglasscorn
    @plexiglasscorn3 жыл бұрын

    This is the video I have been waiting for, best PR from Fermilab

  • @TerranIV
    @TerranIV3 жыл бұрын

    Wow, thank you so much for such an in-depth quality explanation of the g-2 results!!! This is very exciting. Can't wait to find out what the different groups find over the next year or two!

  • @stephenaustin3026
    @stephenaustin30263 жыл бұрын

    I'd been looking forward to this! Back in April, I watched the live seminar when the results were first announced. It was incredibly well put together, and was the most compelling and informative scientific presentation I'd ever seen. Truly an outstanding model for scientific communication that should be studied by others.

  • @RME76048
    @RME760482 жыл бұрын

    Excellent presentation, Dr. Don. Lots more info than you usually provide which is appreciated, but as always, presented in ways that allow most anybody with an interest in physics to follow along.

  • @KonekoEalain
    @KonekoEalain3 жыл бұрын

    Thank you for a digestible explanation of cutting edge science, love your videos Dr. Don!

  • @guilleteru
    @guilleteru3 жыл бұрын

    Beautifully explained. You can sense his love for physics each team he explains something as fascinating as this. Thanks for explaining so well that even someone like me can understand

  • @AnexoRialto
    @AnexoRialto3 жыл бұрын

    Best explanation I've heard/watched on the Muon g-2 experiment. As usual, Dr. Limon knows how to cut to the chase.

  • @darimshamsi2329
    @darimshamsi23293 жыл бұрын

    Hello Sir. Hope you are well. Take care!

  • @paulmace7910
    @paulmace79103 жыл бұрын

    It is amazing that there are human scientists that have the intelligence to understand stuff like this. Research like this is important, not because it has any immediate practical application, but because it furthers our understanding of our universe. Great work Femilab.

  • @tyler1107
    @tyler11072 жыл бұрын

    I love that being wrong is the best and most exciting thing for a physicist

  • @EspritBerlin
    @EspritBerlin3 жыл бұрын

    Thanks for the video! A very exciting experiment!

  • @visavou
    @visavou3 жыл бұрын

    Thank you for making this video. Great explanation!

  • @troeteimarsch
    @troeteimarsch3 жыл бұрын

    Thank you all at Fermilab for the great work you do for us all. I desperately hope that option 2 is the case, I really don't want to give up the sci-fi fantasies that come with it :)

  • @georgH
    @georgH3 жыл бұрын

    Excellent video, it's nice to have the long format again :)

  • @ericeaton2386
    @ericeaton23863 жыл бұрын

    This was great, easily the best explanation I've heard. And I didn't know about the lattice computations! That's really important to the story, it should be reported with this topic more widely.

  • @abelgerli
    @abelgerli3 жыл бұрын

    Thank you so much. For a clear explanation of the facts so far.

  • @stephencorben7875
    @stephencorben78753 жыл бұрын

    Great to see you back Don

  • @GlennElert
    @GlennElert3 жыл бұрын

    Your best post ever Dr. Lincoln.

  • @aportorak8575
    @aportorak85753 жыл бұрын

    This is my favorite series. Love it so much

  • @oscarmendez590
    @oscarmendez5903 жыл бұрын

    Thanks for covering this topic.

  • @NalitaQubit
    @NalitaQubit Жыл бұрын

    Thank you for teaching us complex concepts in such a down to earth way.

  • @TA-ve7ze
    @TA-ve7ze3 жыл бұрын

    What an excellent video. Thank you Dr Don

  • @beeheart6529
    @beeheart6529 Жыл бұрын

    You are such a good teacher! I am so happy to find it’s possible for me to understand what scientists say about subatomic particles, at least partially.

  • @leshommesdupilly
    @leshommesdupilly2 ай бұрын

    Wow, this level of precision is mind boggling !! This is remarkably amazing !! Ok, lets go back to ignore friction...

  • @casandramedina6108
    @casandramedina61083 жыл бұрын

    Thank you very mich dr. Lincoln

  • @liamcjbeistle3274
    @liamcjbeistle3274 Жыл бұрын

    In all, I would assume Feynman would be pleased if not jealous lol. I am thankful in your approach and inspiring a new generation of brilliance.

  • @portuguesepossum3165
    @portuguesepossum31653 жыл бұрын

    I’m so grateful for these videos. Thank you for the work you put in for us that are of the Dummy Tribe.

  • @sukkrivaavijayan4493
    @sukkrivaavijayan44932 жыл бұрын

    Incredibly clear, you have a gift

  • @Ambienfinity
    @Ambienfinity3 жыл бұрын

    I joined the online seminar a few weeks ago -- even at 2am here in Britain, the excitement of breaking new ground was thrilling.

  • @seangordon9164
    @seangordon91649 ай бұрын

    Can we have an updated video with the new results please!!

  • @w0tch
    @w0tch3 жыл бұрын

    Best explanation so far

  • @tresajessygeorge210
    @tresajessygeorge2102 жыл бұрын

    THANK YOU PROFESSOR LINCOLN...!!!

  • @Dragon32z
    @Dragon32z3 жыл бұрын

    summed up, "we could be wrong, we don't know why, but we are oddly happy because of it".

  • @FobbitMike
    @FobbitMike3 жыл бұрын

    Good job, Doc.

  • @tj71520
    @tj715202 жыл бұрын

    I am a big fan of the videos presented on this channel. Very cool stuff.

  • @juzoli
    @juzoli3 жыл бұрын

    It reminds me to the GPS system inaccuracy. If we wouldn’t know about relativity, the GPS system clock would be off by 38 microseconds per day. It sounds to be just as small and insignificant, than the difference in this Muon experiment. But this little inaccuracy both leads to kilometers of inaccuracy in real world usage, and a whole new physics which changed how we understand the universe forever.

  • @henrytjernlund

    @henrytjernlund

    3 жыл бұрын

    Speaking of which, what if this tiny difference is an effect of gravity?

  • @artienia7908

    @artienia7908

    3 жыл бұрын

    @@henrytjernlund it is

  • @juzoli

    @juzoli

    3 жыл бұрын

    @@henrytjernlund Gravity is way weaker than that. But you can believe, since gravity is the 4th fundamental force, and on the top of the lost of the biggest challenges in physics, it is always on the top of the list of ideas for explaining anything mysterious.

  • @davidespano8674

    @davidespano8674

    3 жыл бұрын

    Engineers would have fixed the problem anyway empirically and have it work nevertheless. The truth is that we will never be able to know everything or know everything as our lifespans are limited and at some point the learning process as optimized as it could possibly be will reach its generational best. Problems will have to be fixed empirically and be at peace with that.

  • @juzoli

    @juzoli

    3 жыл бұрын

    @@davidespano8674 Yeah, they would add some magical x multiplier, because that’s what they measure. Just like we add cosmological constant, and call it “dark energy”. But understanding WHY we need that correction is a whole different story.

  • @vitostan3134
    @vitostan31343 жыл бұрын

    The best at explaining complex ideas.

  • @taknothing4896
    @taknothing48963 жыл бұрын

    Best explanation yet.

  • @justinmoorhead2632
    @justinmoorhead26322 жыл бұрын

    Excellent explanation!

  • @itsawonderfullife4802
    @itsawonderfullife48023 жыл бұрын

    Thankx Doc.

  • @asdfasdf71865
    @asdfasdf718653 жыл бұрын

    Nice video. Thanks.

  • @mattcontact1
    @mattcontact13 жыл бұрын

    You're so fascinating. I don't always understand what you're saying but I'm fascinated all the same.

  • @n1k0n_
    @n1k0n_3 жыл бұрын

    SCIENCE! MR DON!

  • @chiseldrock
    @chiseldrock9 ай бұрын

    thanks Don.

  • @jerrygundecker743
    @jerrygundecker7432 жыл бұрын

    Dr. Lincoln, if I'm hearing you right, this research is going to help us go back in time and reach the speed of light. I'd settle for fewer ads on You tube.

  • @keplerthe3399
    @keplerthe33993 жыл бұрын

    I've been waiting for this

  • @redcirclesilverx4586
    @redcirclesilverx45862 жыл бұрын

    Amazing, just learned about your channel from pbs space time. Excited to deep dive!

  • @pmiecz
    @pmiecz3 жыл бұрын

    Much appreciated, thx.

  • @simian_essence
    @simian_essence3 жыл бұрын

    Loved this deep dive! What better place to get this dive than right from the Fermilab's (horse's) mouth. I've got my fingers crossed for new physics!!

  • @tedlis517
    @tedlis5173 жыл бұрын

    Love this. So many of the early attempts to communicate the results of the BH and Fermi Lab experiments focus on “new physics” and completely ignored the lattice QCD results. Either way, bravo to all the scientists involved in the new computer calculations and in gathering the new experimental data. I can’t wait to learn how the next sets of experimental results and confirmation calculations turn out!

  • @cosmosgato
    @cosmosgato3 жыл бұрын

    Waiting for you sir! You make advance science easily digestible for the common man.

  • @lorenzobarbano8022
    @lorenzobarbano80223 жыл бұрын

    I've been waiting for this video for a few years😍

  • @PMA65537

    @PMA65537

    3 жыл бұрын

    I waited so long all my muons decayed.

  • @lorenzobarbano8022

    @lorenzobarbano8022

    3 жыл бұрын

    @@PMA65537 How fast were they going???

  • @PMA65537

    @PMA65537

    3 жыл бұрын

    @@lorenzobarbano8022 You should have seen the Lorenzo transform!

  • @hubertheiser
    @hubertheiser3 жыл бұрын

    The more we know, the less we know :-) Anyway, thank you very much for this clear explanation of where science stands in this particular problem.

  • @alphagt62

    @alphagt62

    3 жыл бұрын

    That’s a good version of the old Einstein quote, “The more I learn, the less I know”.

  • @KaiHenningsen

    @KaiHenningsen

    3 жыл бұрын

    @@alphagt62 I much prefer the version "The more we know, the more we know how little we know". Which incidentally is also related to good ol' Dunning-Kruger: when you know just a little, you have no idea how little you know, so you assume you know everything there is to know.

  • @OslerWannabe

    @OslerWannabe

    3 жыл бұрын

    No, not quite. The more we know, the more we know about how little we know, and the more we know about where to look next.

  • @TonyP9279

    @TonyP9279

    2 жыл бұрын

    That's basically how real science works: You discover new questions.

  • @karaloop9544

    @karaloop9544

    2 жыл бұрын

    @@KaiHenningsen I've come to liken that effect to an expanding circle where the outside is the unknown and the inside already accrued knowledge. The larger the circle of knowledge, the longer the boundary to the unknown becomes.

  • @yojiviriak675
    @yojiviriak6753 жыл бұрын

    Awesome Don

  • @golemtheory2218
    @golemtheory22182 жыл бұрын

    Congrats to Don and the Fermilab team. An fresh alternative to CERN

  • @wulphstein
    @wulphstein2 жыл бұрын

    In the expanding graviton model, gravitons are always coming into existence, expanding from a point, and overlapping. When large numbers of expanding gravitons overlap, they inevitably create the geometries for particle-anti-particle creation. When gravitons overlap and create the geometries for particles/antiparticles, that's the same as creating virtual particles.

  • @krumplethemal8831

    @krumplethemal8831

    5 ай бұрын

    Interesting, do the gravitons lose energy when the overlap produces the particle anti particle pair?

  • @jmcbri
    @jmcbri9 ай бұрын

    Time for an update! 😊

  • @teashea1
    @teashea13 жыл бұрын

    so excellent

  • @avejst
    @avejst3 жыл бұрын

    Impressive video 👍😀

  • @bigsarge2085
    @bigsarge20853 жыл бұрын

    Fascinating stuff.

  • @nikolaos9175
    @nikolaos91753 жыл бұрын

    I'm a simple man, I see a Fermilab video, I hit like.

  • @rickharold7884
    @rickharold78843 жыл бұрын

    Awesome. Love it

  • @YaMumsSpecialFriend
    @YaMumsSpecialFriend3 жыл бұрын

    Fascinating 🖖🏼

  • @makeracistsafraidagain
    @makeracistsafraidagain3 жыл бұрын

    Fascinating

  • @jimc.goodfellas226
    @jimc.goodfellas2263 жыл бұрын

    This guy always explains things that I can't understand when someone else is saying it

  • @quantumkarthik
    @quantumkarthik2 жыл бұрын

    It is wistful to see that this alluring experiment was left behind by the Nobel Committee

  • @smithanderson3511
    @smithanderson35113 жыл бұрын

    classic...loved it

  • @DavidKennyNZL
    @DavidKennyNZL3 жыл бұрын

    thanks

  • @jimbuono2404
    @jimbuono24043 жыл бұрын

    The fields that make up space in the time/space continuum are only superficially understood. While we have some knowledge from experiments, our understanding is limited to the results of those experiments. It's like never having seen 4 types of fruit grown on Rigel 4, being blindfolded, and asked to identify each by touch. You know they feel different but as to understanding what they are, well, you've only scratched the surface.

  • @Fraiser2024
    @Fraiser20243 жыл бұрын

    Great explanation. I wonder... in this experiment muons need to go fast so they have enough livetime due to relativistic effects. How fast? Are other relativistic effects to consider? For example in their interactions with virtual particles... thanks!

  • @seaprobecaptain
    @seaprobecaptain3 жыл бұрын

    So the QCD predictions match observations with the recent lattice QCD computation. What about other models, such as string theory? Are there predictions there that match observations?

  • @Mckeycee
    @Mckeycee3 жыл бұрын

    @8:12 "what does it all mean? Well first, lets be honest, we don't know." lol

  • @TheRolemodel1337
    @TheRolemodel13373 жыл бұрын

    could you derive the relative size difference of muons and electrons using the g factor? if the muon is larger its maximum electromagnetic field strength should be smaller than that of an electron thus less matter/antimatter creation and less of a "cloud" adding to the g factor and vice versa

  • @HackersSun
    @HackersSun3 жыл бұрын

    Wow that's interesting It takes sooo long for the results but well worth the wait

  • @sapelesteve
    @sapelesteve3 жыл бұрын

    Great video Dr. Don! So, basically what you are saying is that we don't know what we think we know until we know it and even then the answer might be wrong or right depending on how you look at it. 😉😉😂😂

  • @drdon5205

    @drdon5205

    3 жыл бұрын

    Welcome to my world.

  • @andy16666
    @andy166663 жыл бұрын

    Need a good tailor there bud. Great video!

  • @patrickaycock3655
    @patrickaycock36553 жыл бұрын

    Intro music is epic. Feels like im about to meet a hero. Wait a minute.... Its dr. don lincoln.... a hero. 😯

  • @mmenjic
    @mmenjic3 жыл бұрын

    1:17 and how much it is spinning ? It does spin ?? Is it variable or constant ??? 1:41 according to windows calculator which may be wrong 0.1% higher than 2 is exactly 2.002 - it is NOT 0.00238 that should be more than 0.1% something like 0.119% 2:15 and we know they are particles, not the waves in the moment of measurement ? 12:50 and what is with low mass high size case ?

  • @Frankness777
    @Frankness7773 жыл бұрын

    Are there any previous results in any other experiments or data interpretations that appear similar in the range of discovery that is presumed?

  • @rexdalit3504
    @rexdalit35042 жыл бұрын

    I would be most curious as to how the lattice calculations vary with "grid size". For example, if calculating on a slightly smaller grid moves the computed g-2 value away from the experimental measurements (toward zero, say), then one might reasonably surmise that calculating with a substantially larger grid would result in a g-2 value even closer to the experimental value(s). [The decades old dream of doing very accurate tau precession experiments may re-emerge, probably still remaining a dreamy dream.]

  • @TheReaverOfDarkness
    @TheReaverOfDarkness3 жыл бұрын

    Do you think that quantum computers will eventually help calculate the lattice QCD?

  • @elir7184
    @elir71843 жыл бұрын

    Cloud of particle anti particle pairs around electron. The cloud slightly enhances the magnetic effect of the electron

  • @manfredgeilhaupt5070
    @manfredgeilhaupt50702 жыл бұрын

    May be the FSC is the key for the gap alpha=(1/g44*1/beta^2)*3/4*gama(1-ln3)^2 g44 Metric-number from GR beta=1/gama from SR -ln(3)=+ln(1/3) is from Thermodynamics Entropy W=1/3 is the probability to go in to x, y, z direction. So the space must be 3-Dimensional everywhere?

  • @aashsyed1277
    @aashsyed12773 жыл бұрын

    0:30 that epic music is so satisfying

  • @YouTubeDoxedMyRealName
    @YouTubeDoxedMyRealName2 жыл бұрын

    Could the subatomic energy cloud with the supposed mater antimatter energy conversion taking place simply vary in density...

  • @Galadonin
    @Galadonin Жыл бұрын

    Really great video, especially to get context about the experiments in fermilab If I may, I just have small "advice" : (Idk your budget, and I really mean well, we need more educational videos, especially on quantum mechanics. If the green screen is not used, you can maybe used a set, with half the screen for the key points. A little bit of cuts in the editing, I'm amazed that you can get a lot of these script without cuts, but it can add a bit a rhythm in the video, less breathing noises. Microphone aren't cheap, but it peaks a little bit to much, I think the clip on mic doesn't help The lightning is bright, which maybe necessary because of the green screen, but it seems that the light is not diffused, or not enough. I don't know if you'll se this comment, but please keep posting, those small notes aren't that important. I'm just nitpicking about details. A lot of science channels use green screen with a space background. Some onsite set can boost the production, especially for fermilab, it would be so great ! Btw your generic is AWESOME ! Great production, seems legit.

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