Live data from Hacker News

Peter Higgs, physicist who discovered Higgs boson, has died

theguardian.com

21–30 of 111 posts

Re: Peter Higgs, physicist who discovered Higgs boson, has died

#21
post #8

Earlier quoted context omitted.

[flagged]

The same is true of every other boson, except arguably photons in the classical limit (e.g. you can put a multimeter on an antenna and detect them "non-probabalistically"). The Higgs detection is sound. A quick check of wikipedia says 5.9 sigma. Good enough for me, anyway.

I don't know where you get 5.9 sigma but that might have been the confidence at the time it was discovered in 2012. Since then the LHC took a lot more data and the confidence is more like 20 sigma.

That said, these days it's harder to find a paper that gives a confidence for discovery, since they are all quoting the signal strength with respect to the standard model prediction. They generally measure this within about 5%, see for example

https://arxiv.org/abs/2404.05498

Re: Peter Higgs, physicist who discovered Higgs boson, has died

#23

He didn't discover the Higgs, but he formulated it (along with other people) in 1964. Its discovery was not until 2012.

[flagged]

Any evidence of any physical phenomena is probabilistic. And with Bell's inequalities, we know that for a fact.

Re: Peter Higgs, physicist who discovered Higgs boson, has died

#24

He didn't discover the Higgs, but he formulated it (along with other people) in 1964. Its discovery was not until 2012.

Discovery can happen in a purely mathematical/theoretical context, too.

I think it's fair to say the 'discovery' that this boson exists came with the LHC experiments. But Higgs did discover in 1964 that the Higgs boson could explain why particles have mass. His paper couldn't say "this is definitely the way the universe is", but rather "if the universe plays by the rules we think it does, this is a relatively simple way to explain this thing we see".

And in my mind, both of those achievements are awesome.

Re: Peter Higgs, physicist who discovered Higgs boson, has died

#25

The story of how Higgs predicted his mechanism was part of what got me into physics as a kid. It fit 10 year old me's obsession with the 'soft-spoken genius' archetype perfectly and formed a pillar in my belief that 'genius' was made through hard work (and some amount of luck) rather than being born with it. The announcement of the detection at the LHC is a core memory of mine, I still distinctly remember where I was…

That is awesome, we need some more amazing scientists in the public eye to inspire the young. I know there are a lot of amazing scientists, but somehow need to get them on tiktok or something? Can you share the story?

My parents had a hard time explaining my dad's job to me, so they just told me he was a scientist because he had a masters in physics (he was a diplomat). Like any little kid, my parents were my heroes, so of course this led me to becoming obsessed with scientists and reading up on science stuff, eg trying to read my sister's university textbooks.

I developed a hobby of reading up on and sharing factoids I found online, and found one about the 'god particle'. At first I thought it was cool because it seemed to basically talk about a particle that causes mass (of course, this was actually wrong, but that didn't really matter to a 10 year old), but reading about how it was predicted 40-50 years ago and the largest single machine humanity had built was being used to try to find it made it my favorite factoid and I'd excitedly start talking all about it the moment anyone showed even the slightest bit of interest.

In 2012 when the detection was announced, we were on a short 2-3 day vacation in Dubai and were having breakfast in the hotel. The TV was right next to us, and seeing the news I was trying (and failing) to explain to my parents how the Higgs boson had been predicted 50 years ago and it took that long for the technology to finally catch up to be able to verify it, and how this would represent one of the last remaining pieces of the standard model (although back then I didn't quite grasp that the standard model was not a full theory of everything). I was trying to explain to them the size of the LHC, how it was the biggest single machine we've built, how when they were turning it on for the first time, there were fears about it creating micro-black holes which might swallow the Earth.

I think that while we need scientists in the public eye, we don't need them as social media entertainers, a lot of well known science communicators on social media come off as attention-seeking charismatic fakes/frauds to me (eg NDT). Stuff like the interviews and documentaries Stephen Hawking had appeared in (or to a lesser extent, the ones Michio Kaku has appeared in) did much more for me in being inspired, even without having known what research they were known for.

I think we could also do with more books like Hawking's 'A Brief History of Time' and encouraging kids to read them. Also, instead of over-simplifying everything and passing off scientists as geniuses in the traditional sense, we should be more open in showing that the people who made these discoveries or predictions were not inherently born with it, the vast majority of them were completely normal people who worked very hard to build skills in the thing they enjoyed.

Another discovery I feel was somewhat similar is that of discrete time crystals, casually predicted in 2012, turned out to actually be possible in 2018 and has a similar 'cool' factor.

Re: Peter Higgs, physicist who discovered Higgs boson, has died

#27

Earlier quoted context omitted.

[flagged]

Any evidence of any physical phenomena is probabilistic. And with Bell's inequalities, we know that for a fact.

This doesn't follow from Bell's inequalities. There are deterministic models of quantum mechanics which are compatible with Bell's theorem.

Re: Peter Higgs, physicist who discovered Higgs boson, has died

#29
post #19

The story of how Higgs predicted his mechanism was part of what got me into physics as a kid. It fit 10 year old me's obsession with the 'soft-spoken genius' archetype perfectly and formed a pillar in my belief that 'genius' was made through hard work (and some amount of luck) rather than being born with it. The announcement of the detection at the LHC is a core memory of mine, I still distinctly remember where I was…

What makes you think he wasn't born with it? I can see in own kids that each one is built differently, with different inmate propensities despite similar environment.

Some have higher inmate propensities than others. ;)

Re: Peter Higgs, physicist who discovered Higgs boson, has died

#30

Earlier quoted context omitted.

[flagged]

Any evidence of any physical phenomena is probabilistic. And with Bell's inequalities, we know that for a fact.

Any evidence of any physical phenomena is probablystic? Maybe this is true of you go deep enough into mathematical/philosophical/quantum rabbit holes, but it doesn't pass the intuitive smell test - I could off-hand name tens of physical phenomena that will perform as expected 100% of the time, deterministic physics (on the macro scale, at least) are like the entire basis for the scientific method.
Post reply on HN