Bmpbmp1975

Sorry was cutting it short, sorry I seem to be all over the place this board has been a big learning experience for me, was just hoping the final confusion I had could be cleared.

There is a whole post about it but I did not want to paste all the information information. Wasn’t sure if that’s allowed the rest of it talks about cosmos constant. Which is why o was hoping that someone here may be able to help me out if it wasn’t to much trouble sorry

It was a question about that signifying the cosmos constant may have changed so I was looking for a better understanding of if I am right?

I read it as a comment on another board which was posted about the article for the expansion of the universe during the discussion that comment was made

Thanks so it is possible the universe is no long métastable thén? Since it is now -1 maybe and this is the whole comment not sure if you saw it “IfPoplawski is right then the equation of state of Dark Energy might fall out trivially. I'd expect it to be close to w=p/ρ=−1w=p/ρ=−1 like the usual cosmological constant but the kinetic term would make it slightly larger than -1. As it turns out the measured value of w from the Planck data is -0.98 but with an error bar of 0.05. So beating down on the error might allow some interesting conclusions to be drawn.” I thought the decay of the higgs was a bad thing?

No I was asking how could it be older than the universe and how at it’s age it is still a star

https://en.m.wikipedia.org/wiki/HD_140283 how can this star be older than the universe? Also being that old how does it still exist surely it should be dying in not very long? also it’s only 200 lights years away from earth so closer than betelguese?

This is what I read somewhere about cosmos constant changing to below 1 a comment about the article I posted “IfPoplawski is right then the equation of state of Dark Energy might fall out trivially. I'd expect it to be close to w=p/ρ=−1w=p/ρ=−1 like the usual cosmological constant but the kinetic term would make it slightly larger than -1. As it turns out the measured value of w from the Planck data is -0.98 but with an error bar of 0.05. So beating down on the error might allow some interesting conclusions to be drawn.” i am trying my best to understand I am sorry but if you want to make fun of me it’s fine, I will keep trying to learn better and also this is from wiki about the Higgs and it’s possible decay lifetime 1.6×10−22 s which is not long Quantum mechanics predicts that if it is possible for a particle to decay into a set of lighter particles, then it will eventually do so.[162] This is also true for the Higgs boson. The likelihood with which this happens depends on a variety of factors including: the difference in mass, the strength of the interactions, etc. Most of these factors are fixed by the Standard Model, except for the mass of the Higgs boson itself. For a Higgs boson with a mass of 125 GeV/c2 the SM predicts a mean life time of about 1.6×10−22 s. The Standard Model prediction for the branching ratios of the different decay modes of the Higgs particle depends on the value of its mass. Since it interacts with all the massive elementary particles of the SM, the Higgs boson has many different processes through which it can decay. Each of these possible processes has its own probability, expressed as the branching ratio; the fraction of the total number decays that follows that process. The SM predicts these branching ratios as a function of the Higgs mass (see plot). One way that the Higgs can decay is by splitting into a fermion–antifermion pair. As general rule, the Higgs is more likely to decay into heavy fermions than light fermions, because the mass of a fermion is proportional to the strength of its interaction with the Higgs.[120] By this logic the most common decay should be into a top–antitop quark pair. However, such a decay would only be possible if the Higgs were heavier than ~346 GeV/c2, twice the mass of the top quark. For a Higgs mass of 125 GeV/c2 the SM predicts that the most common decay is into a bottom–antibottom quark pair, which happens 57.7% of the time.[3] The second most common fermion decay at that mass is a tau–antitau pair, which happens only about 6.3% of the time.[3] Another possibility is for the Higgs to split into a pair of massive gauge bosons. The most likely possibility is for the Higgs to decay into a pair of W bosons (the light blue line in the plot), which happens about 21.5% of the time for a Higgs boson with a mass of 125 GeV/c2.[3]The W bosons can subsequently decay either into a quark and an antiquark or into a charged lepton and a neutrino. The decays of W bosons into quarks are difficult to distinguish from the background, and the decays into leptons cannot be fully reconstructed (because neutrinos are impossible to detect in particle collision experiments). A cleaner signal is given by decay into a pair of Z-bosons (which happens about 2.6% of the time for a Higgs with a mass of 125 GeV/c2),[3] if each of the bosons subsequently decays into a pair of easy-to-detect charged leptons (electrons or muons). Decay into massless gauge bosons (i.e., gluonsor photons) is also possible, but requires intermediate loop of virtual heavy quarks (top or bottom) or massive gauge bosons.[120] The most common such process is the decay into a pair of gluons through a loop of virtual heavy quarks. This process, which is the reverse of the gluon fusion process mentioned above, happens approximately 8.6% of the time for a Higgs boson with a mass of 125 GeV/c2.[3]Much rarer is the decay into a pair of photons mediated by a loop of W bosons or heavy quarks, which happens only twice for every thousand decays.[3] However, this process is very relevant for experimental searches for the Higgs boson, because the energy and momentum of the photons can be measured very precisely, giving an accurate reconstruction of the mass of the decaying particle.[120]

What is 5 sigma and what exactly has changed

not sure why I would feel silly about what I read also this article implies the actual cosmo constant has changed also which confuses some of the answers here 73.8 ± 1.1 km/s/Mpc according to this new measurement. How much does that increase Lambda (cosmo-constant) looks like it was by 5 http://www.physics.org/article-questions.asp?id=103

https://en.m.wikipedia.org/wiki/Void_(astronomy) The articles states a full area of light years that is colder than anywhere around it https://en.m.wikipedia.org/wiki/CMB_cold_spot axis of evil again people think I am dumb also this article implies the actual cosmo constant has changed also which confuses some of the answers here 73.8 ± 1.1 km/s/Mpc according to this new measurement. How much does that increase Lambda (cosmo-constant) looks like it was by 5 http://www.physics.org/article-questions.asp?id=103

This is my understanding and I am not being corrected. and there are no other cold spots in the in universe such as this one a cold spot is an area in the universe different than the regular areas that for some reason that area is colder than anywhere else which does not coincide with the standard Also as I’ve been stating there’s a lot going on in the universe but no one seems to want to state it

The supervoid is a huge area cooler than the actual universe. So it’s there ans something is going on in the universe due to this that area is more prone to vacuum decay or vacuum collapse

You answered but have not said why I am wrong also the light from void has reached us that means the void has also or is about to Also this supervoid is showing there is something now right i am trying to understand this whole post but keep getting different answers

The current temperature of the supervoid shows that cooling is happening is it not? If the universe has cooled to that state in the supervoid it shows that it is possibly cooling to that state all around us. The proposed cooling state puts the universe in a low level which is just happening now with this cooling state happening now it means the universe is at its end. i am sorry if no one sees what I am getting at and I am sorry if I misread about 0 i cannot find the comment that said that. We are currently in this void at the minimum

Thank you for pointing that out. also the temperature comment i made are about a comment on here about of the universe falls below a temp of 0 vacuum collapse is possible. The article about the supervoid shows that that temp has fallen below that level which the article does not state but understanding the articles itself shows that

This is a quote about universe cool down

The process is called thermal equilibrium when dealing as to the when particles symmetry break ie drop out of thermal equibrium. For example the Higgs boson could not drop out of equilibrium unless the universe black body temperature drops below a certain temperature. They decouple from equilibrium with the temperature in relation to the total energy/mass of the particle. ( Obviously the Boson family applies to when the fields decouple) Another Higgs decoupling would require different mass value Higgs bosons than the SM model Higgs boson its totally wierd issue on my end certain responses I have read from people here seem to no longer be here which vos very confusing to me as to why I see them in screenshots but nothong in the post the post there is a response saying in the cooling temp In universe falls bellow 0 then a vacuum collapse is possible but that it cannot fall under 0. I can no longer find the post now and nbthisbthreasv

First you said it’s not possible and now you stated you didn’t say that so I am confused I am sorry That is my understanding a response stated if the universe falls infer 0 k it can be bad. According to the article this section on space is falling under that and continuing to fall?

What do you mean? So it can happen in our lifetime? It’s basically the current understanding

So we have this supervoid that’s the only one that exists right now expanding bigger and bigger and is cooling colder and colder and it is extremely close to zero and your telling me it’s not possible that this affects us in our lifetime. I am curious to understand your comment

So please explain to me why it’s not possible and what this cold void means, it’s the only one that exits in any part of the universe

Sorry meant under 0 kev in universe cooling

I understand but the cold spot is under 0

Yes so the coldness in universe change is what we are in now here because it has reached us no? The supervoid is now at under 0 kev and also the article does not mention collapse but by the temp we are at a collapse state