Just want to stop by and say that Sixty Symbols was the reason I gained an interest in physics and the sciences. I don't come from a background where I would have ever thought I had what it takes to study anything, let alone something that seems so complicated. But the accessibility of the topics and the way you all present them pushed me to get my degree. Just about to start my Masters in Astrophysics. Thank you!
@@mikefelber5129 Exactly. Science at school was so dull, but the way it was presented here is always so interesting and the enthusiasm of the experts is infectious!
I absolutely love these calm videos with Professor Ed talking about possible new discoveries. They're perfect for a quiet watch during breakfast or right before bed.
I think that remark is the physicist equivalent to an EULA disclaimer: "This answer constitutes our current best understanding, but may change without notice." :-)
He didn't actually answer it. He talked about how most of the mass of the proton is mostly in the gluon binding energy. What I expected to hear is that charge and baryon number conservation prevent the electron and proton from simply going away as there is nothing lighter than them but with the same charges that they could decay into, and there is no antimatter around to annihilate them (The tough question here is "Why is there so little antimatter?"). His answer is only remotely related to that: The proton doesn't decay because the quarks themselves are light so they have nothing to decay into. But all he said is that quarks are not very massive without mentioning how that is related to their stability. Probably this connection is so second nature to him that he didn't think the viewers can't make the same connection.
I love the Professor Ed Copeland vids. He manages to explain these immensely complicated experiments and results in a way someone like me who just enjoys learning can almost understand
I would say borderline metaphysics. The last half of he video you can see Prof. Copeland having a hard tIme resisting the urge to say "I don't know, we have insufficient data to derive a meaningful answer."
What an exceptional video. Calm (almost) understandable presentation by the best on RUclips, and incisive questions. It doesn’t get much better than this. Thanks to both of you.
This was a super interesting episode. You got more into the weeds than usual and I love it. Professor Copeland is fantastic at explaining things in an understandable way without dropping too much of the complexities.
Well, I like the man, too. His enthusiasm and happiness with science is quite lovely. But... There's something about his voice that puts me into a trance and I fall asleep.
I love it when the professors get a question from Brady and you can tell they think it's a really good question, something that sounds simple but really drives to a core concept. Brady, you're an excellent interviewer.
A fascinating video. Prof Copland was brilliant in not only being able to explain the research behind the X-17 particle in a simple, easy to understand way but also in being totally unfazed by some of the tough and relevant questions being put to him by Brady.
Great video. Well balanced views from Ed. It gives people some insights as to how we push back the edge of knowledge in the sciences. As well as the specifics around this particular particle and it’s existence or not. More of this sort of stuff please. Slightly longer format and a chance to go through some of the evidence.
Finally another video with Ed Copeland. I waited so long to see some more content with him. I just love his calm and precise way of presenting content. Great.
If there was a particle with a mass of 17 MeV, how has it been missed all these years? An accelerator that produces enough energy to produce this is not a difficult thing.
@@puppetsock If the particle is protophobic, there are very few experiments which could actually observe it. Also, it's production cross section should be low enough that some experiments simply won't have enough data to see it (this is particularly the case for nuclear physics experiments, some old experiments could have seen it, but they didn't have enough statistics). Our current accelerators could indeed be used to look for it, and there will be many experiments looking for particles like it in the coming years.
Ed Copeland did a fantastic job in this interview even when there is clearly quite a limited amount known about X17. Very clear and interesting explanations
This is by far the best material on this topic. I'm in the direct neighborhood of the Institute where the experiment was done. Still, Prof. Copeland and Brady did a way better job explaining the thing than any other resource I've seen on the topic. Thanks a lot!
Triple-alpha process in large stars creates temporary a lot of Beryllium-8 and helium 4 in an excited state , it could then create a lot of x17 if it is real
That would be exciting! Not sure whether Be-8 has more than one excited state in that energy range. And one couldn't detect it at all, sadly. It wouldn't make any observable difference.
LOVE this video. A difficult topic broached with not much assumption beyond high-school physics - yet it exists on the cutting edge of nuclear and particle physics. Very impressed with the quality and straight-forward questions too. Really reflecting and representing the layman viewer without dumbing anything down. Would love to see a follow-up to this video should more information come to light 😀
The ability of science to speak of such hypotheticals in such great detail while still fiercely holding onto the notion that they might not exist at all is what makes it such a mature subject. The ability to admit one might be mistaken is not a trait that comes easily to us humans. It is a sign of maturity, humility, and wisdom when we see it in those around us when it comes to our own personalities and when applied to ourselves. And I think the same proves true for other endeavours we take part in.
New video... I'm happy. I'm a simple man. Thanks for making these supremely nerdy videos. I love all of them, even though I'm too dumb to grasp most of the underlying concepts and I have to re-watch each one 3 times to really get any point... I try to fool myself into thinking I actually understand physics and what these nerds are saying. I don't. But I can't stop watching them. I don't know why. Does anyone else here love these videos despite having no formal education in physics and science? I imagine everyone watching these already knows a ton about science.
Again I'm reminded of the fact that if you love something and your explaining it comes from you heart, you can explain even very complicated things to a layman, or a child. The subjects like chemistry or physics, that many people hate in high school are actually awesome but our relationships with these fields are created by the teachers. If someone just read aloud from the text book and doesn't have a real love and inner understanding for his/her field then how can they pass the love for it onto another? What Brady facilitates is amazing because all these people live it, love it and can bring it down and talk about it on levels which gets everyone captivated. I don't know if this quote of Einstein is true but even if it wasn't it makes the perfect sense: If you cannot explain advanced physics to a child then you don't understand physics :o)
What a great interview! I could listen to this all day. I’ve become super interested in the discovery of new particles and it’s been difficult to find anything that discusses all the “exotic” particles we’ve discovered so far? I’m curious if there are any videos or sites that provide a list or collection of the “exotic” particles we’ve discovered so far? I’d like to understand what we’ve seen so far and what the probability of finding even more elementary particles (I’m looking at you, dark matter!) I think I’m up to speed with elementary particles, but would like to see more on the exotic quark combinations (tetraquarks, mesons, etc) Any thoughts on where I might find anything that covers these particles or discusses them? Thanks again, Sixty Symbols!
I love it when something just makes intuitive sense in physics. the hugh momentum particles firing off electrons in a narrow angle makes so much sense.
Lovely presentation and fascinating topic, thank you. Can anyone explain to me why the emitted photon is referred to as being "virtual"? It does seem to carry away a specific amount of momentum and result in the creation of a known amount of mass upon decay. Is this photon detectable other than by these decay products? Lastly, are there any other examples of proto-phobic type behavior for non-charged species?
Absolutely love Ed as well as the Sixty Symbols videos! I think there may have been an editing error this time though- the title cards seem to be displaying a weird flashing behavior :o
Ed - thanks for sharing your insights. Agree another experiment really needed, or another couple. I am extremely surprised it has not been done. Anyway, I will stay tuned. Great interview. Thanks.
Wonderful interview - probing questions, well-articulated answers a layman can hope to follow, at least for a little way down the particle physics rabbit hole. Thanks!
Could the decay also be done in reverse? Like firing Electrons and Positrons into each other in order to create X and verify its existence by the following decay into another Electron-Positron pair that comes out in a certain angle?
Interesting Video. We rarely hear about the interactions within major particles and their quarks and gluons. Make a video talking about those interactions. How gluons interact, and hold it all together in a proton. Usually all we get is Proton consists of xyz quarks etc.. but rarely do we get info on these interactions.
Isn't lithium 7 a problematic isotope already in regards to the big bang? Would this help to explain why the big bang models are messing up on the abundance problem of lithium 7 observed?
Another fantastic discussion. Professor Copeland gives great answers and Brady asks great questions as always! My personal opinion is that the fields in the Standard Model are complete and correct to explain all low-energy physics. However, now that the dangling carrot of SUSY has been removed, new ways of understanding the Standard Model are required to explain nature.
Another great conversation, but I wish you'd pushed him to answer your brilliant question about why matter particles stick around for so long. As you point out, they're just excitations of fields so you'd expect their existence to be very fleeting.
As I watched this video I started to more understand the concept that an atom is not really a bunch of particles stuck together like balls held together by strings, but more like a bunch of overlapping waves, out of which, another wave can be produced which only has certain stable states. That new wave is what we would call either a photon, or an X17 particle. It's tricky (for me) to hold the idea in my head, but it makes a lot more sense about how things can turn into other things and, for example, why two things which turn into the same stuff (for example x17 and a photon both turn into two electron/positrons) are not the same thing. With macroscopic objects, if two objects break apart into the same components, you can say that the original objects were the same thing, but this just isn't true for subatomic particles, which is confusing to me sometimes.
I remember reading an article somewhere respectable a few years ago on the use of the utterance "um" and its other variants. It was essentially saying that this is a normal and necessary way to speak. I do not believe that this is so. Intelligent and articulate people like Professor Copeland can clearly think far faster than they can talk and consequently almost never say um. Most people appear to be able to talk faster than they can think. That does not say a lot for their intellect.
How about an episode on de Rham-Gabadadze-Tolley (dRGT) massive gravity? There has been lots of buzz about it in the media last month. But RUclips videos on it are either too simple or too hard to understand.
Excellent questions Brady... I continue to be impressed. First the result must be replicated! I now (sorta) understand the distinction between nuclear and particle physics... I assume they sometimes share lunches.
Like so many other things this seems to come back to the fact that we don't have a general theory of how the strength of the known fields relative to one another are set- what determines the coupling constants etc. What's the "field of fields" all about? If we had some idea of how that works we might be able to know how many fields there can be in our spacetime... and if we've found all of them. And if we haven't, how to look for them.
I feel Dr. Copeland meant to say about the experiments that came from a background which was accustomed to cry "wolf" doesn't instill confidence. I would agree.
Mr.Copeland, as a physicist, I can conjecture that to have electron-positron pair it is enough to have 1.02 Mev.photon, the rest of the energy must have formed this16.7 Mev X-17 gauge boson.
8:46. I don’t think that is correct. I believe the Z they were referring to in interaction in that paper was the nuclei of the target, and not a Z boson. (They said it was a bremsstrahlung reaction, and also a z boson there wouldn’t make sense)
With enough energy, the electrons will create a pair of Z bosons, and looking for the X17 in the decay products of massive, neutral, weakly interacting Z bosons sounds plausible to me. But the energy he mentioned, 100GeV, wouldn't be enough for two Z bosons. Maybe he misspoke there. Or did you read the paper? If you did, could you point me to a source, please?
Just want to stop by and say that Sixty Symbols was the reason I gained an interest in physics and the sciences. I don't come from a background where I would have ever thought I had what it takes to study anything, let alone something that seems so complicated. But the accessibility of the topics and the way you all present them pushed me to get my degree. Just about to start my Masters in Astrophysics.
Thank you!
rrryan Wow congrats!! I agree, I have learn much here. This channel makes it fun to learn- It’s the way the describe things so enthusiastically!!
@@mikefelber5129 Exactly. Science at school was so dull, but the way it was presented here is always so interesting and the enthusiasm of the experts is infectious!
@@rrryan9719 You should go on the channel and share your story!
well done!! It only takes love
rrryan See I’ve always loved science & the way they described topics caused me to eat up new knowledge- Either way the delivery is solid gold
I absolutely love these calm videos with Professor Ed talking about possible new discoveries. They're perfect for a quiet watch during breakfast or right before bed.
... or while taking a hot bath after a hard workout session.
I always listen to the profs video's before falling asleep. So soothing!
Watching this with my afternoon coffee.
He's the Mr. Rogers of Physics.
Ed is the best
Ed needs his own channel to talk at length about stuff like this, i could easily listen to him for hours at a time
daveangels he has such a calm and charming voice, i love it
Go to Nottingham university and you'll have it :P
18:58 Brady: "Are there X17's in the room with us?"
Prof Copeland: ...squints around in the room before answering...
he was probably looking around the room to see if there was any beryllium
Always perform the Safety Squint when there's exotic particles around!
Ha! Just posted the same before reading comments. I laughed out loud when he did that.
I think it's just a weird human reflex like looking at your watch when someone asks when are you going on holiday.
Just making sure there aren't any obvious X17s hanging around before saying no.
19:53 "That's a tough question" answers it anyway without hesitation
True madlad
I think that remark is the physicist equivalent to an EULA disclaimer: "This answer constitutes our current best understanding, but may change without notice."
:-)
He didn't actually answer it. He talked about how most of the mass of the proton is mostly in the gluon binding energy. What I expected to hear is that charge and baryon number conservation prevent the electron and proton from simply going away as there is nothing lighter than them but with the same charges that they could decay into, and there is no antimatter around to annihilate them (The tough question here is "Why is there so little antimatter?"). His answer is only remotely related to that: The proton doesn't decay because the quarks themselves are light so they have nothing to decay into. But all he said is that quarks are not very massive without mentioning how that is related to their stability. Probably this connection is so second nature to him that he didn't think the viewers can't make the same connection.
@@siquod Yep I found that a bit jarring, probably should have been cut from the video.
100 points for Brady, his questions are amazing!
Are particle physicists who research hypothetical particles hypothetical particle physicists?
@@u.v.s.5583 Hypothetically
💯
Definitely!
I love the Professor Ed Copeland vids. He manages to explain these immensely complicated experiments and results in a way someone like me who just enjoys learning can almost understand
Andy Clegg in a way maybe his daughter could understand?
Were were those kind of professors when I was studying?!
Brady as usual with very good questions.
I would say borderline metaphysics. The last half of he video you can see Prof. Copeland having a hard tIme resisting the urge to say "I don't know, we have insufficient data to derive a meaningful answer."
I agree, Brady's ability to ask the right questions is part of what makes him a great journalist.
@@y__h I dare you to ask Multivac.
Professor Ed's tone and the speed of his speech is absolutely brilliant!! Great Video!!!
"So right now, there's no X17s in you?" - "Well, I often am quite excited".
THat's just life as a celt
Hahahaha
What an exceptional video. Calm (almost) understandable presentation by the best on RUclips, and incisive questions.
It doesn’t get much better than this.
Thanks to both of you.
Usually with things like this, if you perfectly understand what's going on, that is only proof you don't understand at all.
This was a super interesting episode. You got more into the weeds than usual and I love it. Professor Copeland is fantastic at explaining things in an understandable way without dropping too much of the complexities.
Particle physics just gets more interesting with Professor Ed Copeland!🙌👏
Well, I like the man, too. His enthusiasm and happiness with science is quite lovely. But... There's something about his voice that puts me into a trance and I fall asleep.
I love it when the professors get a question from Brady and you can tell they think it's a really good question, something that sounds simple but really drives to a core concept. Brady, you're an excellent interviewer.
Is it just me or does Professor Copeland posses a unique type of charisma? :)
It is just you.
Professor Copeland explains things so well that even I can almost follow along.
Professor Ed is like the Mr Rogers of particle Physics. He's got that disarming sort of voice that you actually want to listen to.
Dr Ed always boils stupendously complex stuff down in a way I feel I can understand.
I never knew why this angle issue was a thing. Now I do!
A fascinating video. Prof Copland was brilliant in not only being able to explain the research behind the X-17 particle in a simple, easy to understand way but also in being totally unfazed by some of the tough and relevant questions being put to him by Brady.
Great video. Well balanced views from Ed. It gives people some insights as to how we push back the edge of knowledge in the sciences. As well as the specifics around this particular particle and it’s existence or not. More of this sort of stuff please. Slightly longer format and a chance to go through some of the evidence.
Finally another video with Ed Copeland. I waited so long to see some more content with him. I just love his calm and precise way of presenting content. Great.
He wanted to say beryllium boys 11:25
If there was a particle with a mass of 17 MeV, how has it been missed all these years? An accelerator that produces enough energy to produce this is not a difficult thing.
@@puppetsock If the particle is protophobic, there are very few experiments which could actually observe it. Also, it's production cross section should be low enough that some experiments simply won't have enough data to see it (this is particularly the case for nuclear physics experiments, some old experiments could have seen it, but they didn't have enough statistics). Our current accelerators could indeed be used to look for it, and there will be many experiments looking for particles like it in the coming years.
This video is berylliant!
... I'll get my coat 😬
The videos with Ed Copeland are the best...regardless of topic or channel.
Ed Copeland did a fantastic job in this interview even when there is clearly quite a limited amount known about X17. Very clear and interesting explanations
This is by far the best material on this topic. I'm in the direct neighborhood of the Institute where the experiment was done. Still, Prof. Copeland and Brady did a way better job explaining the thing than any other resource I've seen on the topic. Thanks a lot!
fanthomans2 I like waffles
ok?
I could have told you about X17 years ago, I use it all the time to get to Coventry!
I'm so fond of this channel. It really drove me to study physics.
This is the best video I've seen on x-17
Triple-alpha process in large stars creates temporary a lot of Beryllium-8 and helium 4 in an excited state , it could then create a lot of x17 if it is real
all the reactions occur in the core, if the lifetime is 10^-12 none could ever escape.
That would be exciting!
Not sure whether Be-8 has more than one excited state in that energy range.
And one couldn't detect it at all, sadly. It wouldn't make any observable difference.
I love listening to this guy. One of my favorites! He genuinely seems like a nice dude.
Ed is my absolute favorite love waking up to his videos thank you Brady you are the man
New particle? Ed? That’s a must-watch video.
I am a simple man. I see Ed, I click like.
Psychx simple and unoriginal
LOVE this video. A difficult topic broached with not much assumption beyond high-school physics - yet it exists on the cutting edge of nuclear and particle physics.
Very impressed with the quality and straight-forward questions too. Really reflecting and representing the layman viewer without dumbing anything down.
Would love to see a follow-up to this video should more information come to light 😀
Thank you Professor Copeland and Mr Haran: Brilliant interview
The ability of science to speak of such hypotheticals in such great detail while still fiercely holding onto the notion that they might not exist at all is what makes it such a mature subject. The ability to admit one might be mistaken is not a trait that comes easily to us humans. It is a sign of maturity, humility, and wisdom when we see it in those around us when it comes to our own personalities and when applied to ourselves. And I think the same proves true for other endeavours we take part in.
Thanks guys... a great conversation... I got heaps from Brady's questions and Ed's answers. Big hug to you both.
New video... I'm happy. I'm a simple man. Thanks for making these supremely nerdy videos. I love all of them, even though I'm too dumb to grasp most of the underlying concepts and I have to re-watch each one 3 times to really get any point... I try to fool myself into thinking I actually understand physics and what these nerds are saying. I don't. But I can't stop watching them. I don't know why. Does anyone else here love these videos despite having no formal education in physics and science? I imagine everyone watching these already knows a ton about science.
Yep, Brady , your questions made this a great video. Thanks all of ya for creating these videos.
Pls make more videos with the professor. Love to see hes insights, and explanations!
Can we have more videos of professor Ed Copeland! He is really great!
More Ed! I loved his long series on the early universe from years ago.
The most amazing video in the last few years. Thank you.
Very interesting, and wonderfully explained. Thanks Ed and Brady!
Brady and Ed, as usual an *excellent* video. Superb questions with great answers. Thanks to you both!
Great questions from Brady and such patience from Ed. More 60 Symbols!
Ed Copeland is brilliant. And Brady is an great interviewer.
Again I'm reminded of the fact that if you love something and your explaining it comes from you heart, you can explain even very complicated things to a layman, or a child.
The subjects like chemistry or physics, that many people hate in high school are actually awesome but our relationships with these fields are created by the teachers.
If someone just read aloud from the text book and doesn't have a real love and inner understanding for his/her field then how can they pass the love for it onto another?
What Brady facilitates is amazing because all these people live it, love it and can bring it down and talk about it on levels which gets everyone captivated.
I don't know if this quote of Einstein is true but even if it wasn't it makes the perfect sense:
If you cannot explain advanced physics to a child then you don't understand physics :o)
This channel is trully an inspiration. Thanks for this work!
Great questions Brady , great answers Ed
I like to think Brady is quite qualified in many fields now, from hanging out with so many professors explaining stuff
You can definitely tell from watching the 10+ yr progression of videos how much more knowledgeable he's gotten.
What a great interview! I could listen to this all day. I’ve become super interested in the discovery of new particles and it’s been difficult to find anything that discusses all the “exotic” particles we’ve discovered so far? I’m curious if there are any videos or sites that provide a list or collection of the “exotic” particles we’ve discovered so far? I’d like to understand what we’ve seen so far and what the probability of finding even more elementary particles (I’m looking at you, dark matter!) I think I’m up to speed with elementary particles, but would like to see more on the exotic quark combinations (tetraquarks, mesons, etc) Any thoughts on where I might find anything that covers these particles or discusses them? Thanks again, Sixty Symbols!
I think Prof Copeland is my favorite. He seems so kind and knowledgeable
I love Ed's explanations
I had a look around my room too. none here either.
Great explanation of how this experiment is done. Thanks for that!
I love it when something just makes intuitive sense in physics. the hugh momentum particles firing off electrons in a narrow angle makes so much sense.
Thanks to you I look into the process of excitement and relaxation in a quite different way
Great video! Small correction though: the Z in the NA64 experiment refers to the scattering of nuclei (bremsstrahlung), not interactions with Z bosons
This video is fascinating and the questions are so on point the entire interview. Thank you for your content!
Lovely presentation and fascinating topic, thank you. Can anyone explain to me why the emitted photon is referred to as being "virtual"? It does seem to carry away a specific amount of momentum and result in the creation of a known amount of mass upon decay. Is this photon detectable other than by these decay products? Lastly, are there any other examples of proto-phobic type behavior for non-charged species?
Absolutely love Ed as well as the Sixty Symbols videos! I think there may have been an editing error this time though- the title cards seem to be displaying a weird flashing behavior :o
Ed - thanks for sharing your insights. Agree another experiment really needed, or another couple. I am extremely surprised it has not been done. Anyway, I will stay tuned. Great interview. Thanks.
We need a follow up video when an update comes.
This is a damn good episode Brady. Great questions from you.
Love watching Prof Copeland!
Wonderful interview - probing questions, well-articulated answers a layman can hope to follow, at least for a little way down the particle physics rabbit hole. Thanks!
Thank you for your continued dedication to keeping us internet folk informed of amazing things.
Could the decay also be done in reverse? Like firing Electrons and Positrons into each other in order to create X and verify its existence by the following decay into another Electron-Positron pair that comes out in a certain angle?
Yes, anything that can happen one way can happen the reverse. Though positron-electron annihlations can be messy.
thank you professor Ed C. another amazing explanation. The sort of thing I would fly past in New Scientist.
Truly fascinating content presented in an understandable manner. Thanks SS, you just gained a new sub.
14:58 Love the Professors reaction to Brady's question lol
Ed Copeland! Awesome, been while.
Interesting Video. We rarely hear about the interactions within major particles and their quarks and gluons. Make a video talking about those interactions. How gluons interact, and hold it all together in a proton. Usually all we get is Proton consists of xyz quarks etc.. but rarely do we get info on these interactions.
Isn't lithium 7 a problematic isotope already in regards to the big bang? Would this help to explain why the big bang models are messing up on the abundance problem of lithium 7 observed?
Very much dig Professor Copeland's vids and explanations.
Brady's question is getting tougher and tougher to answer
Love the question you asked around 19:50! Cheers!
Real brilliant people, in general are humble like Prof Copeland.
I SEE ED. I CLICK. omg im so excited
Like the beryllium atom in the video_
ok?
Another fantastic discussion. Professor Copeland gives great answers and Brady asks great questions as always!
My personal opinion is that the fields in the Standard Model are complete and correct to explain all low-energy physics. However, now that the dangling carrot of SUSY has been removed, new ways of understanding the Standard Model are required to explain nature.
Another great conversation, but I wish you'd pushed him to answer your brilliant question about why matter particles stick around for so long. As you point out, they're just excitations of fields so you'd expect their existence to be very fleeting.
Brady has the best questions, as always!
Been hoping for a more in-depth vid on x17 since I saw a popular article about it!
As I watched this video I started to more understand the concept that an atom is not really a bunch of particles stuck together like balls held together by strings, but more like a bunch of overlapping waves, out of which, another wave can be produced which only has certain stable states. That new wave is what we would call either a photon, or an X17 particle. It's tricky (for me) to hold the idea in my head, but it makes a lot more sense about how things can turn into other things and, for example, why two things which turn into the same stuff (for example x17 and a photon both turn into two electron/positrons) are not the same thing. With macroscopic objects, if two objects break apart into the same components, you can say that the original objects were the same thing, but this just isn't true for subatomic particles, which is confusing to me sometimes.
I remember reading an article somewhere respectable a few years ago on the use of the utterance "um" and its other variants. It was essentially saying that this is a normal and necessary way to speak. I do not believe that this is so. Intelligent and articulate people like Professor Copeland can clearly think far faster than they can talk and consequently almost never say um.
Most people appear to be able to talk faster than they can think. That does not say a lot for their intellect.
Amazing video. Thank you professor and thank you Brady. You are both awesome.
"Well, I often am quite excited", that made me have to stop the video and laugh.
ok?
How about an episode on de Rham-Gabadadze-Tolley (dRGT) massive gravity? There has been lots of buzz about it in the media last month. But RUclips videos on it are either too simple or too hard to understand.
Excellent questions Brady... I continue to be impressed. First the result must be replicated! I now (sorta) understand the distinction between nuclear and particle physics... I assume they sometimes share lunches.
What a fantastic find. The periodic table is Growing with the increased intelligence and better performance computers. Can wait for more details.
Man, I just love your videos and particularly this professor too. Thank you!!
I literally understood nothing but it was still really fun to watch
Like so many other things this seems to come back to the fact that we don't have a general theory of how the strength of the known fields relative to one another are set- what determines the coupling constants etc. What's the "field of fields" all about? If we had some idea of how that works we might be able to know how many fields there can be in our spacetime... and if we've found all of them. And if we haven't, how to look for them.
I feel Dr. Copeland meant to say about the experiments that came from a background which was accustomed to cry "wolf" doesn't instill confidence. I would agree.
I'm a physicist and I find this most intriguing and will be impatiently waiting for new experiments rgarding the possible X17 particle!
More Prof. Ed Copeland please! :)
We need more Ed Copeland!
Mr.Copeland, as a physicist, I can conjecture that to have electron-positron pair it is enough to have 1.02 Mev.photon, the rest of the energy must have formed this16.7 Mev X-17 gauge boson.
8:46. I don’t think that is correct. I believe the Z they were referring to in interaction in that paper was the nuclei of the target, and not a Z boson. (They said it was a bremsstrahlung reaction, and also a z boson there wouldn’t make sense)
With enough energy, the electrons will create a pair of Z bosons, and looking for the X17 in the decay products of massive, neutral, weakly interacting Z bosons sounds plausible to me. But the energy he mentioned, 100GeV, wouldn't be enough for two Z bosons. Maybe he misspoke there.
Or did you read the paper? If you did, could you point me to a source, please?