As I understand it they are trying to simulate the conditions thought likely
to have existed just after the creation of the universe. 
I would be worried where they to say we want to create the conditions just
before........

Regards
 
 
Mike
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Eric CHRISTISON
Sent: Thursday, June 18, 2009 3:14 PM
To: [log in to unmask]
Subject: Re: [TN] [LF] The compliance with EU materials dictates and the
precautionary principal

In the interests of balance I thought I should selectively quote from 
the paper as well, the conclusions. For those who are short of time, 
just read the second last sentence:

As shown in the previous Section, in particular in Tables
I-III, the maximum black hole mass never reaches
catastrophic size before leaving the Earth. The black
hole mass remains at microscopic values for a wide range
of acceptable initial conditions and for a wide range of
critical masses, Mc. In order for the black holes created
at the LHC to grow at all, the critical mass should be
Mc & 102 kg. This value is already larger than the maximum
compatible with experimental tests of Newton's law
(and we further relaxed it to Mc = 104 kg in our analysis).
For smaller values of Mc, the black holes cannot
accrete fast enough to overcome the decay rate. Furthermore,
the larger Mc is taken to be, the longer a black
hole takes to reach its maximum value.
We conclude that, for the RS scenario and black holes
described by the metric (6), the growth of black holes
to catastrophic size is not possible. Nonetheless, it remains
true that the expected decay times are significantly
longer than is typically predicted by other models, as was
first shown in Ref. [4].

Regards,




Steve Gregory wrote:
> Here's another link:
>
> http://www.lhcfacts.org
>
> Steve
>
> -----Original Message-----
> From: Leadfree [mailto:[log in to unmask]] On Behalf Of John Burke
> Sent: Wednesday, June 17, 2009 5:42 PM
> To: [log in to unmask]
> Subject: [LF] The compliance with EU materials dictates and the
> precautionary principal
>
> Just a little food for thought.
>
> While we are busily falling into line with materials policy dictates
> from Europe based on the precautionary principal, I thought you might
> find it interesting to see what is taking place in Europe with total
> disregard for the same principal.
>
> As you are probably aware the Large Hadron Collider (LHC) project blew
> up last year during commissioning. The collider is able to collide
> particles with energy levels up to I believe 17TeV, and is in the
> process of being repaired prior to re-commissioning.
>
> At this power the scientists involved are expecting to find new
> particles and are also anticipating the production of 5 dimensional
> black holes as an outcome.
>
> The attached reference link is to the high energy particle physics site.
> The paper entitled "On the Possibility of Catastrophic Black Hole Growth
> in the Warped Brane-World Scenario at the LHC" Describes the "likely"
> size of such black holes and assures that they are not liable to reach a
> "critical mass"
> of 100Kg - at which point presumably everything in the area would be
> sucked into said black hole swiftly followed by the rest of the solar
> system.....they did not probe that scenario...
>
> Here are the links:
>
> http://arxiv.org/PS_cache/arxiv/pdf/0901/0901.2948v2.pdf
>
> and...
>
> http://arxiv.org/abs/0901.2948
>
>
> No I am not joking this is a real paper on a real site - and I for one
> just hope that their assumptions and math about particles they have
> never seen are correct.
>
> So much for the "precautionary principal"!
>
> John Burke
>
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-- 
Eric Christison Msc
Mechanical Engineer
Consumer & Micro group
Imaging Division

STMicroelectronics (R&D) Ltd
33 Pinkhill
Edinburgh EH12 7BF
United Kingdom

Tel:	+44 (0)131 336 6165
Fax:	+ 44 (0)131 336 6001

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