1,019 research outputs found
F(750), We Miss You, as Bound State of 6 Top and 6 Anti top
We collect and estimate support for our long speculated "multiple point
principle" saying that there should be several vacua all having (compared to
the scales of high energy physics) very low energy densities. In pure Standard
Model we suggest there being three by "multiple point principle" low energy
density vacua, "present", "condensate" and "high field" vacuum. We fit the mass
of the in our picture since long speculated bound state of six top and six anti
top quarks in three quite {\em independent ways} and get remarkably within our
crude accuracy the {\em same} mass in all three fits! The new point of the
present article is to estimate the bound state mass in what we could call a bag
model estimation. The two other fits, which we review, obtain the mass of the
bound state by fitting to the multiple point principle prediction of degenerate
vacua.
Our remarkable agreement of our three mass-fits can be interpreted to mean,
that we have calculated at the end the energy densities of the two extra
speculated vacua and found that they are indeed very small!. Unfortunately the
recently much discussed statistical fluctuation peak F(750) has now been
revealed to be just a fluctuation, very accidentally matches our fitted mass of
the bound state remarkably well with the mass of this fluctuation 750 GeV.Comment: minor corrections in calculation and commas and a few references
added. arXiv admin note: text overlap with arXiv:1607.07907, adding few
citation
Formulation of Complex Action Theory
We formulate a complex action theory which includes operators of coordinate
and momentum and being replaced with non-hermitian
operators and , and their eigenstates and with complex eigenvalues and .
Introducing a philosophy of keeping the analyticity in path integration
variables, we define a modified set of complex conjugate, real and imaginary
parts, hermitian conjugates and bras, and explicitly construct ,
, and by formally
squeezing coherent states. We also pose a theorem on the relation between
functions on the phase space and the corresponding operators. Only in our
formalism can we describe a complex action theory or a real action theory with
complex saddle points in the tunneling effect etc. in terms of bras and kets in
the functional integral. Furthermore, in a system with a non-hermitian
diagonalizable bounded Hamiltonian, we show that the mechanism to obtain a
hermitian Hamiltonian after a long time development proposed in our letter
works also in the complex coordinate formalism. If the hermitian Hamiltonian is
given in a local form, a conserved probability current density can be
constructed with two kinds of wave functions.Comment: 29 pages, 2 figures, references added, presentation improved, typos
corrected. (v5)The definition of and are
corrected by replacing them with their hermitian conjugates. The errors and
typos mentioned in the errata of PTP are corrected. arXiv admin note:
substantial text overlap with arXiv:1009.044
Seeking a Game in which the standard model Group shall Win
It is attempted to construct a group-dependent quantity that could be used to
single out the Standard Model group S(U(2) x U(3)) as being the "winner" by
this quantity being the biggest possible for just the Standard Model group. The
suggested quantity is first of all based on the inverse quadratic Cassimir for
the fundamental or better smallest faithful representation in a notation in
which the adjoint representation quadratic Cassimir is normalized to unity.
Then a further correction is added to help the wanted Standard Model group to
win and the rule comes even to involve the Abelian group U(1) to be multiplied
into the group to get this correction be allowed. The scheme is suggestively
explained to have some physical interpretation(s). By some appropriate
proceedure for extending the group dependent quantity to groups that are not
simple we find a way to make the Standard Model Group the absolute "winner".
Thus we provide an indication for what could be the reason for the Standard
Model Group having been chosen to be the realized one by Nature.Comment: already publiched in 2011 in Bled Conference proceedings "What comes
beyond the Stadard Models
The Cheshire Cat Principle from Holography
The Cheshire cat principle states that hadronic observables at low energy do
not distinguish between hard (quark) or soft (meson) constituents. As a result,
the delineation between hard/soft (bag radius) is like the Cheshire cat smile
in Alice in wonderland. This principle reemerges from current holographic
descriptions of chiral baryons whereby the smile appears in the holographic
direction. We illustrate this point for the baryonic form factor.Comment: 11 pages, 2 figure
Momentum and Hamiltonian in Complex Action Theory
In the complex action theory (CAT) we explicitly examine how the momentum and
Hamiltonian are defined from the Feynman path integral (FPI) point of view
based on the complex coordinate formalism of our foregoing paper. After
reviewing the formalism briefly, we describe in FPI with a Lagrangian the time
development of a -parametrized wave function, which is a solution to an
eigenvalue problem of a momentum operator. Solving this eigenvalue problem, we
derive the momentum, Hamiltonian, and Schr\"{o}dinger equation. Oppositely,
starting from the Hamiltonian we derive the Lagrangian in FPI, and we are led
to the momentum relation again via the saddle point for . This study
confirms that the momentum and Hamiltonian in the CAT have the same forms as
those in the real action theory. We also show the third derivation of the
momentum relation via the saddle point for .Comment: Latex 42 pages, 2 figures, references added, typo corrected, the
final version to appear in IJMPA. (v5)The errors and typos mentioned in the
erratum of IJMPA are correcte
Complex action suggests future-included theory
In quantum theory its action is usually taken to be real, but we can consider
another theory whose action is complex. In addition, in the Feynman path
integral, the time integration is usually performed over the period between the
initial time and some specific time, say, the present time . Besides
such a future-not-included theory, we can consider the future-included theory,
in which not only the past state at the initial time
but also the future state at the final time is given
at first, and the time integration is performed over the whole period from the
past to the future. Thus quantum theory can be classified into four types,
according to whether its action is real or not, and whether the future is
included or not. We argue that, if a theory is described with a complex action,
then such a theory is suggested to be the future-included theory, rather than
the future-not-included theory. Otherwise persons living at different times
would see different histories of the universe.Comment: Latex 12 pages, 3 figures, typo corrected, presentation improved, the
final version to appear in Prog.Theor.Exp.Phy
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