109 research outputs found
New Bound States of Heavy Quarks at LHC and Tevatron
The present paper is based on the assumption that heavy quarks bound states
exist in the Standard Model (SM). Considering New Bound States (NBS) of
top-anti-top quarks (named T-balls) we have shown that: 1) there exists the
scalar 1S--bound state of ; 2) the forces which bind the top-quarks
are very strong and almost completely compensate the mass of the twelve
top-anti-top-quarks in the scalar NBS; 3) such strong forces are produced by
the Higgs-top-quarks interaction with a large value of the top-quark Yukawa
coupling constant . Theory also predicts the existence of the NBS
, which is a color triplet and a fermion similar to the
-quark of the fourth generation. We have also considered the
"b-quark-replaced" NBS, estimated the masses of the lightest fermionic NBS:
GeV, and discussed the larger masses of T-balls. We have
developed a theory of the scalar T-ball's condensate and predicted the
existence of three SM phases. Searching for heavy quark bound states at the
Tevatron and LHC is discussed. We have constructed the possible form-factors of
T-balls, and estimated the charge multiplicity coming from the T-ball's decays.Comment: 25 pages 12 figure
Phase Transition Couplings in the Higgsed Monopole Model
Using a one-loop approximation for the effective potential in the Higgs model
of electrodynamics for a charged scalar field, we argue for the existence of a
triple point for the renormalized (running) values of the selfinteraction
and the "charge" g given by . Considering the
beta-function as a typical quantity we estimate that the one-loop approximation
is valid with accuracy of deviations not more than 30% in the region of the
parameters: The phase diagram given in the present paper
corresponds to the above-mentioned region of . Under the
point of view that the Higgs particle is a monopole with a magnetic charge g,
the obtained electric fine structure constant turns out to be
by the Dirac relation. This value is very close
to the which in a U(1) lattice gauge theory
corresponds to the phase transition between the "Coulomb" and confinement
phases. Such a result is very encouraging for the idea of an approximate
"universality" (regularization independence) of gauge couplings at the phase
transition point. This idea was suggested by the authors in their earlier
papers.Comment: 27 pages, 3 figure
Seesaw scales and the steps from the Standard Model towards superstring-inspired flipped E_6
Recently in connection with Superstring theory E_8 and E_6 unifications
became very promising. In the present paper we have investigated a number of
available paths from the Standard Model (SM) to the E_6 unification,
considering a chain of flipped models following the extension of the SM:
SU(3)_C\times SU(2)_L\times U(1)_Y \to
SU(3)_C\times SU(2)_L\times U(1)_X \times U(1)_Z \to
SU(5)\times U(1)_X \to
SU(5)\times U(1)_{Z1} \times U(1)_{X1} \to
SO(10) \times U(1)_{X1} \to
SO(10) \times U(1)_{Z2}\times U(1)_{X2} \to
E_6\times U(1)_{X2} or E_6,
Also we have considered a chain with a left-right symmetry:
SU(3)_C\times SU(2)_L\times U(1)_Y \to
SU(3)_C\times SU(2)_L \times SU(2)_R\times U(1)_X\times U(1)_Z \to
SU(4)_C\times SU(2)_L \times SU(2)_R\times U(1)_Z \to
SO(10)\times U(1)_Z \to
E_6.
We have presented four examples including non-supersymmetric and
supersymmetric extensions of the SM and different contents of the Higgs bosons
providing the breaking of the flipped SO(10) and SU(5) down to the SM. It was
shown that the final unification E_6\times U(1) or E_6 at the (Planck) GUT
scale M_{SSG} depends on the number of the Higgs boson representations
considered in theory.Comment: 25 pages, 7 figure
Standard Model and Graviweak Unification with (Super)Renormalizable Gravity. Part I: Visible and Invisible Sectors of the Universe
We develop a self-consistent -invariant model of the unification
of gravity with weak gauge and Higgs fields in the visible and
invisible sectors of our Universe. We consider a general case of the graviweak
unification, including the higher-derivative super-renormalizable theory of
gravity, which is a unitary, asymptotically-free and perturbatively consistent
theory of the quantum gravity.Comment: 27 page
- …