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QCD proponents claim that a stable state of an aggregate of baryons, each
of which
consists of u,d,s quarks, can exist. This idea is discussed for more than
two decades and attempts to find this kind of baryonic
matter have been carried out and ended in vain [1].
These attempts are continued persistently and, as of today,
ten international conferences dedicates to this subject
have been organized. References to this idea can be
found by searching the Internet for the words "Strange Quark
Matter" (SQM).
The regular monopole theory predicts that a SQM
does not exist. This conclusion relies on the similarity
between electricity of charges and magnetism of
magnetic monopoles. Now, the third
postulate
of the regular monopole theory states that
baryons correspond to neutral nonionized atoms
and mesons correspond to the positronium. Thus, bound
states of hadrons are like atoms in a liquid drop. This conclusion
explains the underlying structure of nuclei, which are bound states
of nucleons. Here, the typical binding energy per nucleon is 8 MeV.
Thus, the small value of 8 MeV cannot make an energy barrier for
the weak
decay of the Λ baryon, because the Λ - nucleon mass
difference is about 180 MeV. Hence, no stable SQM is
expected to exist.
In principle, QCD allows the existence of SQM.
The failure
of attempts to detect this object provides yet another reason for
questioning the validity of QCD.
References:
[1] K. Han et al., Phys. Rev. Lett. 103, 092302 (2009).
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