Large Hadron Collider (LHC) generates a 'mini-Big Bang' but no black hole :(

Hikari Kisugi said:
Studing what? The energy given off at xrays and gamma rays? down thru uv light and infrared? Thats not a temperature surely?

I don;t get how they quantify these things, in a sun there are billions of particles atoms ion etc, this thing is only smashing a few.
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In high energy physics, temperature and mass are usually measured in units of energy (electron volts or eV), so what the temperature here is really referring to is the average kinetic energy of the particles involved in the collision (around 14 TeV; or 7 TeV for each of the two colliding particles). To give context, the room temperature thermal energy is around 25 meV, so the average LHC collision energy is around 560,000,000,000,000 times that of room temperature, or about 12 million times that of the core of the sun.
 
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they should fire some eggs and see what happens when they collide, do they get scrambled , hard boiled , soft boiled , sunny side up?
 
NightSt@lk3r said:
black holes are a myth
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I thought they were just spheres that have super massive mass and density with gravitational force so strong that light can't escape from, hence black whole. I am not sure quite how you would gain such mass with such tiny ions / partials. :confused:
 
Inquisitor said:
In high energy physics, temperature and mass are usually measured in units of energy (electron volts or eV), so what the temperature here is really referring to is the average kinetic energy of the particles involved in the collision (around 14 TeV). To give context, the room temperature thermal energy is around 25 meV, so the average LHC collision energy is around 560,000,000,000,000 times that of room temperature, or about 12 million times that of the core of the sun.
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Thank you, so the temp thing is basically for scientists to give folks some comparison to situations they know.
I didn't think they actually tried to get a 'temperature' reading.
 
Hikari Kisugi said:
Thank you, so the temp thing is basically for scientists to give folks some comparison to situations they know.
I didn't think they actually tried to get a 'temperature' reading.
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Nope. Temperature isn't really useful as a concept in this scenario; it's more natural just to talk about energies instead.
 
"andy" said:
and what was it that smashed together these ions/protons all that time ago ?
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Duh. We've known for years the universe is just one big monstrous supercollider. Didn't you ever notice the simularity in shape? :D

http://www.nature.com/news/2008/080523/full/news.2008.854.html

news2008854.jpg
 
iNPUt said:
I thought they were just spheres that have super massive mass and density with gravitational force so strong that light can't escape from, hence black whole. I am not sure quite how you would gain such mass with such tiny ions / partials. :confused:
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There are two factors in determining whether a body forms a black hole: size and mass. So even if the mass is small, if it's compressed into a small enough volume, it'll form a black hole, characterized by the Schwarzschild radius being larger than the physical radius of the object.
 
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