[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)