Message boards : Cafe LHC : Q: LHC vs Cosmic Rays
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dulcimoo

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Message 20344 - Posted: 14 Sep 2008, 13:12:42 UTC

One of the arguments for the LHC not killing us all is that Cosmic rays have already done this \\\\\\\"experiment\\\\\\\" and have created blackholes and we are still here.

So here is my question: In terms of energy how powerful are Cosmic rays in relationship to the LHC? Same Power, 5X more powerful, 100X, whatever. If someone could answer this so I can add so numbers to my arguments I would appreciate it.

Thank you in advance...

... I have some numberson the cosmic ray side which might help ... \\\\\\\"[ultra high energy cosmic rays] They are 100 million times more energetic than anything produced by particle smashers on Earth.\\\\\\\" and \\\\\\\"Ultrahigh-energy cosmic rays are considered to be those above about 1 billion billion electron volts (1 times 10 to the 18th power).

The most energetic cosmic ray ever found was detected over Utah in 1991 and carried an energy of 300 billion billion electron volts (3 times 10 to the 20th power).\\\\\\\" http://www.eurekalert.org/pub_releases/2008-03/uou-rcr032008.php

Another site quotes: \\\\\\\"Most galactic cosmic rays have energies between 100 MeV ... and 10 GeV (corresponding to 99.6% of the speed of light). The number of cosmic rays with energies beyond 1 GeV decreases by about a factor of 50 for every factor of 10 increase in energy. Over a wide energy range the number of particles per m2 per steradian per second with energy greater than E (measured in GeV) is given approximately by N(>E) = k(E + 1)-a, where k ~ 5000 per m2 per steradian per second and a ~1.6. The highest energy cosmic rays measured to date have had more than 1020 eV, equivalent to the kinetic energy of a baseball traveling at approximately 100 mph!\\\\\\\" http://www.srl.caltech.edu/personnel/dick/cos_encyc.html

So how does this range of 10^10eV - 10^20eV compare with LHC collisions at full power?

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Message 20479 - Posted: 22 Sep 2008, 1:58:40 UTC

So how do we soup-up the ol weed-wacker as it were and start blasting big stuff like the deathstar ?
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Message boards : Cafe LHC : Q: LHC vs Cosmic Rays


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