Re: The true crackpots


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.

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

.

Relevant Pages

  • Re: The true crackpots
    ... > I found those papers, ... > The Inclusive Jet Cross Section in proton-antiproton Collisions ... > scattering between a proton and an antiproton can be described ... > "The world's highest-energy particle accelerator, ...
    (sci.physics.relativity)
  • Re: Do baryons generate mesons from the tidal forces around small black holes?
    ... in an accelerator collision, the potential energy from the color force ... baryon and producing a meson. ... What you are talking about is a quantum effect. ... The proton ought to ...
    (sci.physics.relativity)
  • Re: The speed of light revisited
    ... particle accelerators do not employ a photon "wind" ... What is the speed of the energy that is pushing the proton? ... with the velocity vector of the proton -- along ... The simplest accelerator uses a static field as ...
    (sci.physics)
  • Re: Sub-atomic particle structures
    ... >> appear that have little or nothing to do with the original particles. ... one can pump energy into it continuously ... > holding onto a proton while pumping energy into it indefinitely. ... nuclear physics does this quite often in nuclear collisions ...
    (sci.physics.particle)
  • Re: CERN concern
    ... cosmic ray does is like comparing an atom bomb with a single uranium atom. ... it has to encounter another proton first. ... Ocollisions per interaction, times the probability for BH formation). ...
    (sci.math)