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The New Data
On June 4, 2012 the ATLAS and the CMS collaborations reported
here
and
here
results showing a significant excess of events whose invariant mass is
near 125 GeV. The measured
quantity is a pair of γ photons whose distribution shows a peak
having a width of few GeV. The problem is the identification
of the primary particle that disintegrates into the γ-γ pair.
Relevant Physical Effects
The disintegration of a particle into two photons
is an already known effect.
For example, the jπ = 0- ground
state of the
positronium disintegrates into 2 photons. The same effect is found
in the π0 meson disintegration. In either case,
the disintegrating system is made of a bound pair of charged spin-1/2
particle-antiparticle that attract each other. Hence, a candidate
for the ATLAS and the CMS 125 GeV particle is a meson which is a
bound state of the tt
pair of the top quarks.
The term toponium denotes this particle
in a standard terminology.
Beside the reported two γ effect
and the low signal of 2 lepton-antilepton pairs,
it is interesting to see if near 125 GeV there is
an effect which is similar to the π0
disintegration into one γ photon and one lepton-antilepton pair.
Possible Interpretations of the New Data
Like the positronium and the π0, the
tt meson is
a composite neutral system which is made of charged
spin-1/2 particles. Therefore,
its coupling to the electromagnetic fields is a self-evident phenomenon. On the other
hand, the Higgs boson is an elementary particle. As such, it must be
pointlike
.
Hence, the interpretation of the two photons which come out of a Higgs
boson disintegration argue that a pointlike chargeless particle couples
to the electromagnetic fields.
Such a process can only be done indirectly, by means of an intermediate
effect where the Higgs boson disintegrates into two charged particles
which later decay into the two γ photons
(see e.g. [1], section 4.3).
Evidently, the Occam's
razor principle favors the
tt
explanation described above.
An examination of these Intrepretations
Physicists use two different kinds of tests of
the validity of ideas. An acceptable
idea must be consistent with experimental measurements. Another kind
of test is an analysis of the mathematical consistency of the Idea.
A relevant experimental quantity
is the width of the peak at the 125 GeV.
The two reports mentioned at the beginning of this page indicate that
the measured width is larger than 2 GeV. This value is about 1000 times greater
than the Standard Model prediction of the width of a 125 GeV Higgs boson
(see pp. 143, 145
here
).
This huge experimental discrepancy casts serious doubts on the
validity of the Higgs boson
interpretation of the new 125 GeV particle. Referring to this conclusion,
it is interesting to note that the experimental description of the new data
does not mention the Higgs boson:
"This result constitutes evidence
for the existence of a new massive state that decays into two photons"
(see the conclusion in the second link at the beginning of this page).
On top of that, it has already been proved
(see sections 1-4
here
)
that the Higgs equations rely on an inconsistent mathematical structure.
This is a very strong argument against the Higgs boson interpretation
of the 125 GeV two γ effect.
It should be pointed out that the weak interactions become very strong
at very high energy. For example, the top quark decay is a weak
interaction process because it involves flavor change. Now, the
width of the top decay is about 2 GeV. This value indicates a very
short life time and demonstrates the high magnitude of weak interactions
at energies around 100 GeV. Now, it is well known that weak interactions
do not conserve parity. Therefore, it is not surprising to find
that the 125 GeV top-antitop state is 0+ and not 0-.
References:
[1]
J. Ellis, M. K. Gaillard and D. V. Nanopoulos, Nucl. Phys. B106 (1976) 292.
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