[HN Gopher] Over the past 10 years, the LHC has found more than ... ___________________________________________________________________ Over the past 10 years, the LHC has found more than 50 new hadrons Author : graderjs Score : 86 points Date : 2021-05-19 11:53 UTC (11 hours ago) (HTM) web link (home.cern) (TXT) w3m dump (home.cern) | rpz wrote: | Horray. How about figuring out a way to lower the hadrons | discovered per dollar ratio and maybe i'll be more excited | capableweb wrote: | > ... per dollar ratio ... | | LHC - Large Hadron Collider - Geneva, Switzerland - Most likely | CHF/EUR. Not sure why you would care how much is being spent on | it. | tester756 wrote: | >Not sure why you would care how much is being spent on it. | | It's easiest way to see how "big" something is | karmakaze wrote: | km, kg (or if you prefer MeV/c^2) work just fine. | ajkjk wrote: | better to spend that money on, what, plastic widgets and more | manipulative ads? | bedhead wrote: | My dyslexia had me thinking this was a sexual thing... | Kye wrote: | Hadron and On and On | | https://www.youtube.com/watch?v=bV-hSgL1R74 | herodoturtle wrote: | Fifteen hundred and seven. | | <3 | lacker wrote: | I wonder if this is like ancient astronomers finding more and | more epicycles. | at_a_remove wrote: | Not especially, no. | | This is more akin to finding new molecules (hadrons), given | known kinds of atoms (quarks). | eddieh wrote: | Nah, they're more like elements, but they're made of quarks not | nucleons (protons/neutrons). | | I think the modern equivalent of epicycles is string theory. | Find an inconstancy? No problem, add a dimension. | sthnblllII wrote: | This is reminiscent of Seaborg's work in the 1960's that lead to | the discovery of lots of new heavy elements. Everyone was pretty | sure they could be created but someone had to build an | accelerator to do it. | lapetitejort wrote: | There's a hypothesis that we'll eventually find more stable | superheavy elements as the number of neutrons increases in the | nucleus [0]. Perhaps we'll find something like that in hadrons | (not counting protons and neutrons of course)? | | [0]: https://en.wikipedia.org/wiki/Island_of_stability | BitwiseFool wrote: | Here's an ignorant question, but my understanding is that | every element has an emission/absorption spectra. That being | the case, why not point a telescope at some supernova remnant | and look for any lines that do not match the known elements. | If stable super-heavy elements exist, then they would | probably be made in supernovae and the remnant would show | signs of those elements, no? | wrs wrote: | Not answering your question, but fun fact: helium was | discovered by seeing an unexplained emission line in our | own sun's spectrum, which is where it got its name. | simcop2387 wrote: | I think the main issue it's that they would need to be made | in sufficient quantity to show up in the Spectra of the | novas and collision. The heavier they are the fewer will be | made, making detection harder and harder. You'd also need | to calculate all the lines for a given element at the | various energy levels to determine if a set of lines match, | and that gets nontrivial pretty quickly | btilly wrote: | I think that that issue is secondary to the fact that the | island of stability has predicted half-lives in the range | of a year or two. So in order to look for that spectrum | we have to have supernovae that have happened very | recently and close enough for us to make out the spectrum | in what remains. | BitwiseFool wrote: | Ah, that makes sense. Thank you. | therein wrote: | Looking forward to the stable isotope of element 115 that | serendipitously falls into that island of stability. | SECProto wrote: | Why element 115 in particular? | dannypovolotski wrote: | Am I the only one who misread the word "Hadrons"? | ASalazarMX wrote: | Seeing such number (and knowing nil about particle physics), I | imagine someone cataloging the fallen leaves in autumn using low- | res pictures. They are the same kind of leaf, but from different | angles it looks like there's several kinds. | ephimetheus wrote: | Hadrons are composite particles so that's exactly what this is. | Different quark combinations. Back in the day people didn't | know and we're quite unhappy with such a Zoo of particles. ___________________________________________________________________ (page generated 2021-05-19 23:01 UTC)