The Standard Model of Particle Physics 

no distraction, no stupid pictures, no , annoying background music. superb quality of contents, precise , no BS. perfect educational video

I understood a lot of this before watching this, but this has to be the best explanation as a whole I have seen so far. I have trouble with retention, so I will watch this a few times. This is very easy to understand, if not retain. Thank you!

Been watching physics videos for a while and this is the most comprehensive explanation of the standard model I've seen - clear and concise. Big thumb up!

your videos are very well explained. you're not running through your content and you make it easy to understand. you deserve much more views and subscribers because of the high quality of your videos.

I've watched a lot of videos on the Standard Model. and this is one of the most concise and clearly explained that I've seen. Excellent job.

I’ve been going down the quantum field theory rabbit hole for a month now and I just love how simple and straight forward you make everything sound . Thank you science Jesus .

I still don't get why gravity requires some kind of particle if it's just a bending of space-time.

I'm often watching videos on physics and thinking about nature of reality stuff, and found this very good. Thumbs up from me, you manage to hold the viewers attention and be concise.

Thank you so much for the great video. Helped me with my physics report a ton!

Thank You for this brilliant video, which enable me to understand such huge concepts. I have been trying to understand these by reading and surfing onto internet, but it found to be so so so so hard for me. So, Thanks for this video!!!

thank u professor dave, sometimes in class this stuff goes right over my head but u have such a great pace of explanation and example so i understand it very well now. thank u so much king

Would be interesting to see a video summarizing the experimental evidence (from the literature and scattering experiments) for each particle type. Great job Dave!

thanks for all your educational videos, they have helped me tremendously!

0:39 New Particles, 1:17 Particle Zoo 1:57 Fermions and Bosons Quarks and Leptons Baryons: Protons and Neutrons, etc. 4:05 Quantum Fluctuation And Partners 5:23 Review 6:23 4 Forces, 1 unified ancestor force

Excellent, excellent, excellent. Your explanation was clear. my education in physics stopped in the sixties. Just another great video Prof

all your videos are the best simple explanations ever! I agree, you absolutely deserve for much more viewers. people, wake up! that guy is one of a kind!

I'm physics student and I'm trying to understand standard model for a course of my career called Introduction to subatomic physics. Your video was helpful to me. You explain better than my teacher Thanks Regards from Colombia

Great content. Very educational & understandable for the lay person. The standard model is a corner stone of modern physics!

Excellent video as always

I finally understood standard model of physics :) Great job!

Excellent explanation.

Excellent content 👍🏾

I love your videos man.

Wonderful really wonderful Dave your deserve an enormous thumb !!

Amazing explanation, thank you Dave.

best video.... well explained

Very good!!! 👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼👏🏼

Humans 1000 years ago: AHH yes the earth is made out of earth of course!

Excellent.... thanks.

your videos are excellent. I find them useful because is hard to find resources for advanced, but not university level physics biology and science for anyone who is to young to have pay-pal or a credit card to buy any resources. so keep up the good work!

Great explaining. Could you add that gravitons only exist in the sense of quantum mechanics. In general, relativity gravity is due to curved spacetime.

Best video , amazing.

This question comes from someone who is barely even a layman when it comes to these types of things: By saying that gravitons are hypothetical, and that we have yet to unify it with the other forces, does that mean we at a very fundamental level don't understand what causes gravity?

woah there was so.much more ......i never knew....thank you for sharing this

Very well explained!!

how do you maintain all of these informations?

You are best of the best.

Starting to get addicted again to Physics.

Maybe I can't grasp the concept of the standard model, but the graviton and Higg's boson appears to be the same particle. The Higg's boson gives other particles their mass, but mass warps spacetime; so the graviton seems to be the quantum representation of the distortion of spacetime. But the warpage of spacetime is negligible at quantum level, right?

Excellent... thanks 🙏

"When science came along?" Aristotle's four elements of the universe WAS science - the search for truth based upon observation and experimentation. Presuming air, water, fire, and earth as an early understanding of all of the worlds materials and forces, is a brilliant, observation and fact based hypothesis, not some silly, superstitious rantings of primitives. Compared to invisible, magical forces that act in chaotic, unknowable ways, Aristotle was incredibly rational. The idea of atoms came along hundreds of years before Aristotle, as I presume you know. Science didn't "come along", it has been going on for over twelve thousand of years...which is how we got agriculture, pottery, buildings, metals, and everything else. Just like today, it is a process building upon the work done before. We just happen to live at the easy end, where most of the heavy lifting of science has been done, and we are free to experiment in climate controlled, well ventilated laboratories where we fret over the purity of samples measured in the particles per billion of whatever we are depositing in vacuum chambers or colliding in city-sized race tracks.

I'd like to see more of a distinction between the proven and unproven science. The Standard Model can be explained without detailing the highly speculative theories meant to fill in the gaps.

what do they look like. What are they doing exactly..like literally what are they doing? Also, why do I never hear these other particles existence until I watch this video? I thought it was just protons, nuetrons and electrons. I can’t image how any of these particles work. I need visuals. Yes I get it but I don’t get. All I learned from this is that these particles exist. I have no idea nor can I get any idea of how any of these particles even look like or how they even work.

The Standard Model is a combination of only three basic properties - in various orders of magnitude : charge, spin and mass. All particles we know are combinations of these three properties. Two of these properties exist in two opposite states: Charge+ versus Charge- and Spin+ versus Spin-. These opposite states of both properties can result from a quantum fluctuation without any energy. Mass is a little more difficult to understand. First of all : Mass is not a property , but positive gravity (gravity+) is. Now we have a problem. In order our universe to be energy neutral , it is necessary to have a minus gravity (gravity-) for every positive gravity (gravity+). Let us rename gravity+ to (compaction of the fabric of space) and to dark matter and let us rename gravity- to (dilution of the fabric of space) and to dark energy. Now it is easy to understand that quantum fluctuations can produce dark matter and dark energy everywhere in the universe. Dark matter (=compaction=gravity+) will be attracted by galaxies, will attribute to fusion in stars and will at the end disappear in black holes. Dark energy (=dilution=gravity-) will dilute the fabric of space with 72 km/s/Mparsec (10^18 (m/m)/s

Sir make a separate video on higgs boson

but if there are mesons with quarks and anti quarks .. wont they anhilate

Dr. Dave, Is there a way to download your flow chart for particles (6:14 mins)? Thanks!

you're the best!

I like how casual you said "lets take a look at the standard model" like no big deal or whatever

hey professor, which animation software do you use?

First time I finally have a clear picture of those particles...

Sir, which sub-atomic particle is necessary (plays important role) to transmit the data? how it's going to carrying that data?

What the hex boson was a Gravitron. Or are they different?

what if dark mater made from the stuff in the model that doesn't make proton electrons and Neutrons (such as other baryons), are made into something like atoms that are made from the other particles? Like Tau + 2 other baryons other than proton and electrons = new atom like substance? any way to know for sure or detect something as existing? Could explain for all the stuff between "illuminating matter" in the universe that forms those filaments explained in the other video.

I was surprised to learn the weak nuclear force is mediated by both W and Z bosons - I'd have expected one boson for one fundamental force. Given the forces tend to merge at higher temperatures, it got me wondering if the weak nuclear force could split into a W-mediated and Z-mediated form at lower temperatures. (Or if the math might predict it at a nonreal temperature.) Just so bizarre to me (a layperson to particle physics) that the weak nuclear force would arise from two bosons - that to me implies to me the behavior of W and Z bosons don't differ in any way that warrants recategorizing the weak nuclear force as two forces.

If the Higgs Boson combines with subatomic particles to give them mass does that mean that the Higgs is reducing in number in the universe.

Physics amd math and imagination is the key to understanding existance

I would say that the particles of The Standard Model are over 10^10^10^6 times smaller in diameter than The Planck Length and what not.

4:45 woah - that's poetic

Thanks

Hadrons, atoms and molecules aren't a subset of fermions, a hadron/atom/molecule can be a fermion or a boson.

Also, why can a meson exist? A quark and anti-quark should be able to and will negate each other. Thus, the mesons will cease to exist. So, please answer my question, professor, if possible.

Perfect!

aren't anti-neutron just like regular neutrons? since it doesn't have charge

Great videos, clear and concise. If gravitons and the fundamentals of dark energy and dark matter are discovered tomorrow I nominate you to explain it to the masses.

Professor, since Higgs Boson imparts mass, and mass has gravity, and gravity bends spacetime, then why can't we conclude that higgs boson is the hypothetical graviton in disguise?

can the image from 1:06 be found anywhere? It's beautiful

1:40 Poor Graviton..still not there I guess... 1:46 Where is Higgs Boson ?

Thank you for not patronising your audience

I seem to get lost after protons neutrons and electrons :)

So many particles are discovered found in itom

A small set of 7 colors creates different spectrums of a beautiful world. A small set of 7 notes creates a completely different spectrum of beautiful music. Probably the same situation exists in the microcosm. At the initial stage, a large family of particles is not required. The Standard Model of particle physics (as the primary state of Nature) is too complex to be true.

Good Job explaining physics for cats. I admit I am a cat when it comes to physics and I understood.

fun fact in summers if you don't open A.C. your testesterone and so the intelligence by atleast 4 times. And dopamine by 10 times atleast.

Algo b-b-boost! For one day Plaza Del Rey

But mesons are not fermions but bosons, aren't they?

I created elements because Many would investigate the Dust

The further i go in this series the less i understand! ^^

in love with you Dave. in LOVE

2sa

bruv your a god

Cheers, this i helpful, still gonna kms tho

my head is going to explode lol

Mike Hunt Particles Physics in Holy Qur'an The word " ذرة " used in this verse means itom. Smaller than itom indicate that there are particles smaller than itom. There are neutron, electron and proton in itom. Almighty Allah says: و قال الذين كفروا لاتأتينا الساعة ، قل بلى وربى لتاتينكم علم الغيب لا يعزب عنه مثقال ذرة في السموات ولا في الأرض و لا اصغر من ذلك ولا أكبر إلا في كتب مبين o Those who disbelieve say: The Hour will never come unto us. Say: Nay, by my Lord, but it is coming unto you surely. (He is) the knower of the Unseen. Not an itom's weight, or less than that or greater, escapeth Him in the heavens or in the earth, but it is in a clear Record". If yon see meaning of itom in Arabic dictionary you will come to know that itom means ذرة. It is written in dictionary. You don't know Arabic. Learn and study more. It is better and in your interests to believe in Almighty Allah and worship Him only and believe that prophet Muhammad is His last and final messenger. Almighty Allah bless all of us. DR.MOHAMMAD LAEEQUE NADVI Ph.D. (Arabic Lit.) M.A. Arabic Lit.+Islamic Studies) Director Amena Institute of Islamic Studies & Analysis A Global & Universal Research Institute, Donate to develop this Institute SBI A/C30029616117 Kolkata,Park Circus Branch nadvilaeeque@gmail.com Thanks

Stop using the Bohr model of the atom! And quark rhymes with "park" not "pork."

There is one, kind of a big, issue with the way you organize the particles here. Fermions do not equal matter and bosons do not equal force carrier. Rather, fermions are particles with half integer spin and bosons are particles with integer spin. Fermions follow the spin-statistics theorem and thus obey the Pauli Exclusion principle while bosons do not. Matter generally are fermions and all force carriers are bosons. However, there are matter that are bosons too. Mesons, for instance, have integer spin and therefore are bosons. Categorizing them as fermions like you do in this video is therefore wrong. I understand why you organized it the way you did, it certainly is more pedagogical this way but while terms like hadrons, leptons and so forth are names of particle types, fermions and bosons simply refer to the spin of the particle with no other regard to what type of particle it is. All force carriers have integer spin which is why we talk about gauge bosons (+1 spin) and scalar bosons(0 spin) but that is misleading because of above reasons :) Other than that the video is very well structured and pedagogical!

what makes you think that gravity is a force and not the result of a combination of forces?

👏👏👏 Clap clap clap

I dont care about what they thought it the year 600 just get to the point

l need to stop here because you are using words like giving me a heart attack. Professor, we are watching you from all around the word. English is not my native language. Why do you use all this literature words instead of simplifying your concept. l mean l can't even understand your language. l want to focus on subjects of physics but you are using such words like bestow, apropos taxonomy. Couldn't you use the words give, about, regarding, classification etc. l know it drops your presentation's quality a little, but it would keep my whole attention on the subject as well. Of course l also have to learn new vocabulary, yet l would rather to learn it from books or other sources. Sorry about my complaining. l hope l could explain my problem. Thanks for giving an effort to read this.

Professor!!!! Help me! I come from Vietnamese. Please read email sent me?