80 research outputs found
Physics of Renormalization Group Equation in QED
It is shown that the renormalization group (RG) equation in QED can only
describe the finite size effects of the system. The RG equation is originated
from the response of the renormalized coupling constant for the change of the
system size . The application of the RG equation to the continuum limit
treatment of the lattice gauge theory, therefore, does not make sense, and the
well-known unphysical result of the lattice gauge theory with Wilson's action
cannot be remedied any more.Comment: 4 pages, no figur
No Area Law in QCD
Wilson's area law in QCD is critically examined. It is shown that the
expectation value of the Wilson loop integral in
the strong coupling limit vanishes when we employ the conjugate Wilson action
which has a proper QED action in the continuum limit. The finite value of
Wilson loop with the Wilson action is due to the result of the artifact. The
fact that his area law is obtained even for QED simply indicates that the area
law is unphysical.Comment: 4 pages, no figur
Tomonaga's Conjecture on Photon Self-Energy
We investigate Tomonaga's conjecture that the self-energy of photon should
vanish to zero. In fact, the contribution of photon's self-energy diagram
violates the Lorentz invariance and therefore it is unphysical. In addition,
there occurs no wave function renormalization of photon in the exact
Lippmann-Schwinger equation for the vector potential and this confirms that the
conjecture is correct. Further, it is shown that the gauge condition of the vacuum polarization tensor does not hold and the
relation is obtained simply due to a mathematical mistake in replacing the
integration variables in the infinite integral.Comment: 10 pages, no figur
No massless boson in chiral symmetry breaking in NJL and Thirring models
We show that the chiral symmetry breaking occurs in the vacuum of the
massless Nambu-Jona-Lasinio (NJL) and Thirring models without a Goldstone
boson. The basic reason of non-existence of the massless boson is due to the
fact that the new vacuum after the symmetry breaking acquires nonzero fermion
mass which inevitably leads to massive bosons. The new vacuum has a finite
condensate of with the chiral current conservation. Thus, it
contradicts the Goldstone theorem, and we show that the proof of the Goldstone
theorem cannot be justified any more for fermion field theory models with
regularizations.Comment: 18 pages, two figures, Late
Novel Solution of Mercury Perihelion Shift
We present a novel solution of the Mercury perihelion advance shift in the
new gravity model. It is found that the non-relativistic reduction of the Dirac
equation with the gravitational potential produces the new gravitational
potential of .
This potential can explain the Mercury perihelion advance shift without any
free parameters. Also, it can give rise to the shift of the GPS
satellite where the advance shift amounts to which should be compared to the recent
observed value of .Comment: 4 page, no figure, submitted to Phys. Rev. Let
Possible Suppression of Neutron EDM
Employing generalized Schiff's transformation on electric dipole moments
(EDM) in quantum field theory, we show that the chromoelectric EDM lagrangian
density is transformed into the electric EDM term with a new coefficient. Under
the new constraint on the EDM operators, the neutron EDM can be described by a
unique combination of electric EDM and chromoelectric EDM
of quarks. If the special relation of
holds, then the neutron EDM
is suppressed significantly.Comment: 9 pages, Late
Reexamination of standard solar model to the solar neutrino problems
We examine the calculation of the solar neutrino flux based on the standard
solar model (SSM). It is found that the solar neutrino data (KAMIOKANDE
experiment) can be well described by the SSM with careful employment of nuclear
data of . The main point is that the simple-minded
product ansatz of Coulomb plus nuclear parts should have a few percent
uncertainties which induce the large reduction of the neutrino flux from . Also, if the electron capture of inside the sun is suppressed, then
the GALLEX experiment can be understood by the SSM calculation.Comment: 13 pages, 2 figures, Late
Color triplet excitations in two dimensional QCD
We present a novel calculation of color triplet excitations in two
dimensional QCD with SU(2) colors. It is found that the lowest energy of the
color triplet excitations is proportional to the box length , and can be
written as . Therefore, the color
triplet excited states go to infinity when the system size becomes infinity.
The properties of the color triplet states such as the wave functions are
studied for the finite box length.Comment: 10 pages, 3 figure, Late
Path integral and Sommerfeld quantization
The path integral formulation can reproduce the right energy spectrum of the
harmonic oscillator potential, but it cannot resolve the Coulomb potential
problem. This is because the path integral cannot properly take into account
the boundary condition, which is due to the presence of the scattering states
in the Coulomb potential system. On the other hand, the Sommerfeld quantization
can reproduce the right energy spectrum of both harmonic oscillator and Coulomb
potential cases since the boundary condition is effectively taken into account
in this semiclassical treatment. The basic difference between the two schemes
should be that no constraint is imposed on the wave function in the path
integral while the Sommerfeld quantization rule is derived by requiring that
the state vector should be a single-valued function. The limitation of the
semiclassical method is also clarified in terms of the square well and
function potential models.Comment: 7 page
Violation of S-matrix factorization in massive Thirring model
We present a counter example which shows the violation of the S-matrix
factorization in the massive Thirring model. This is done by solving the PBC
equations of the massive Thirring model exactly but numerically.
The violation of the S-matrix factorization is related to the fact that the
crossing symmetry and the factorization do not commute with each other. This
confirms that the soliton antisoliton S-matrix factorization picture of the
sine-Gordon model is semiclassical and does not lead to a full quantization
procedure of the massive Thirring model.Comment: 28 pages, Latex, 3 figures, Phys. Rev. D58 in pres
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