Re: The true crackpots


mluttgens@xxxxxxxxxx wrote:
> PD wrote:
> > mluttgens@xxxxxxxxxx wrote:
> > > PD wrote:
> > >
> > > "Your inability to conduct library research or your quitting in that
> > > endeavor after a few minutes' search is not my problem, Marcel."
> > >
> > > As you refuse to present a clear reference of a paper giving an
> > > unequivocal proof of length contraction, I have to conclude that such
> > > paper exists only in your imagination (I am trying to be very polite to
> > > you).
> > >
> > > Marcel Luttgens
> >
> > Following the example I described, see:
> >
> > The Inclusive Jet Cross Section in pbar-p Collisions at sqrt(s) = 1.8
> > TeV
> > D0 Collaboration, Physical Review Letters 82 2451 (1999)
> >
> > Determination of the Absolute Jet Energy Scale in the DZERO
> > Calorimeters
> > Abbott, B., et al., NUCL.INSTRUM.METH.A 424 352 (1999)
> >
> > There are numerous references in each of these papers that provide
> > additional supporting documents.
> >
> > PD
>
> I found those papers, but considered them as irrelevant. Thank you
> nevertheless.

Congratulations for looking these up. Now look up the equivalent papers
for HERA. (The H1 collaboration would be your key word).

>
> As I said, the experimental detection of "length contraction" is
> a product of your imagination.
>
> For instance, the paper
>
> The Inclusive Jet Cross Section in proton-antiproton Collisions
> at ps = 1.8 TeV
> arXiv: hep- ex/ 9807018 v1 17 Jul 1998
>
> is about elastic collisions:
>
> "Within the framework of quantum chromodynamics (QCD), inelastic
> scattering between a proton and an antiproton can be described
> as an elastic collision between a single proton constituent
> and a single antiproton constituent."
>
> In a tevatron, those collisions occur of course head-on.
> Or, according to SR, physical bodies set in motion only shorten in the
> direction of their motion, meaning that a proton colliding head-on
> with an anti-proton will not observe "length contraction" of the
> anti-proton.
>
> The numerous authors explained:
>
> "The cross section, reported as a function of jet transverse energy
> <...> is in good agreement with predictions from next-to-leading
> order quantum chromodynamics."
>
> It is thus clear that the observed contraction has nothing to do
> with SR.
>
> Herafter are a few definitions intended for those readers who
> are not familiar with those experiments.
>
> >From hep.uchicago.edu/cdf/cdfglossary.html
> (Last updated: July 13, 2004)
>
> Cross section:
>
> "A measure of the probability that a collision between two given
> particles will result in a specific event, with area units.
> At the Tevatron, the cross section for top quark production
> at 1.8 TeV is approximately 6.2 picobarns, where one picobarn
> is 10 to the -12 barns."
>
> Barn:
>
> "A unit of area equalling 10 to the -24 square centimeters,
> which is used to measure cross section."
>
> CDF- Collider Detector at Fermilab:
>
> "An experimental collaboration committed to studying high energy
> particle collisions at the Tevatron in order to discover the
> properties of and interactions among the particles that make
> up the universe. "
>
> Tevatron:
>
> "The world's highest-energy particle accelerator, located about
> 30 feet below the ground at Fermilab. A series of accelerators
> add energy to protons and anti-protons, accelerating them to
> speeds around 99.9999% of the speed of light in a vacuum,
> and colliding them inside the collider detectors."
>
> >From http://en.wikipedia.org/wiki/Tevatron
>
> "The Tevatron can accelerate the particles from the Main Injector
> up to 980 GeV, within 320 km/h of the speed of light. The protons
> and antiprotons are accelerated in opposite directions, crossing
> paths in the CDF and D0 (zero) detectors to collide at 1.96 TeV."
>
> Notice: *The protons and antiprotons are accelerated in opposite
> directions*, hence they collide head-on.
>
> Marcel Luttgens

.

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