75 research outputs found
The (g−2) µ Anomaly Within the Left-Right Symmetric Model
No full textWithin the model based on the SU(2)L × SU(2)R × U(1)B−L gauge group (leftright symmetric model- LRM) the influence of the Higgs sector on the value of the muon magnetic moment (MMM) is investigated. The contributions caused by the doubly charged Higgs boson ∆ (−−) 2 are found. The obtained value of the MMM is the function of the mass of ∆ (−−) 2 boson and the triplet Yukawa coupling constants. We demonstrate that at the definite values of these parameters the LRM provides an explanation of the E989 experiment at Fermilab
Neutrino Multipole Moments and Related Phenomena
No full textEvolution equation for the solar neutrinos flux is determined. It is assumed that neutrinos have both dipole magnetic and anapole moments. It is shown, that at transit of electron neutrinos flux through the region of the solar flare, three phenomena could be detected by the terrestrial observer. They are as follows: (i) decreasing the number of electron neutrinos; (ii) appearance of the νeL- and νXL-neutrinos (X = µ, τ ); (iii) reduction of the β-decay rate for some elements of the periodic table
Effects of Neutrino Multipole Moments on Neutrino Oscillation
No full textThe evolution of the neutrino flux traveling through dense matter and vortex inhomogeneous intensive magnetic field is investigated. As the examples of the intensive magnetic field the magnetic felds of the collapsar jets and the coupled sunspots being the sources of the solar flares are considered. It is assumed that the neutrinos possess the following electromagnetic characteristics: neutrino charge radii, the dipole magnetic and anapole moments
The Higgs decay H → Zff
No full textTwo most popular GUT scenarios, namely, the left-right symmetric
model and models coming from grand unification are
considered. Both models predict existence of the additional
neutral gauge boson. Its contributions to the decay of the Higgs
boson being an analog of the standard model (SM) Higgs boson
H→ Zf+f-are found
The Higgs boson decays with the lepton flavor violation
No full text Within the left–right symmetric model (LRM), the decays [Formula: see text] where [Formula: see text] is an analog of the Standard Model Higgs boson, are considered. The widths of this decays are found in the third-order of the perturbation theory. Since the main contribution to the decay widths is caused by the diagram with the light and heavy neutrinos in the virtual state, then investigation of this decays could shed light upon the neutrino sector structure. The obtained decay widths critically depend on the charged gauge bosons mixing angle [Formula: see text] and the heavy–light neutrinos mixing angle [Formula: see text]. The LRM predicts the values of these angles as functions of the vacuum expectation values [Formula: see text] and [Formula: see text]. Using the results of the existing experiments, on looking for the additional charged gauge boson [Formula: see text] and on measuring the electroweak [Formula: see text] parameter, gives [Formula: see text] However, even using the upper bounds on [Formula: see text] and [Formula: see text], one does not manage to get the upper experimental bound on the branching ratio [Formula: see text] being equal to [Formula: see text]. The theoretical expression proves to be on two orders of magnitude less than [Formula: see text]. </jats:p
Decays of Z and Higgs Bosons Going with Charged Lepton Flavor Violation
No full textWithin the left-right symmetric model (LRM) the charged lepton flavor violation decays of the Z1 and S1 bosons which are analogs of Z and Higgs bosons of the standard model (SM) are investigated. The obtained widths do not equal to zero only provided the heavy neutrino masses are hierarchical and the neutrino mixing angles are nonzero. As a result, looking for these decays gives information on the following parameters of the LRM: (i) heavy-heavy neutrino mixing; (ii) heavy-light neutrino mixing; (iii) heavy neutrino masses
Productions and Decays of Heavy Neutrinos
No full textWithin the left-right-symmetric models (LRM) the possibilities of detecting the neutrino dipole magnetic moments are investigated. The motion of the high-energy light neutrino beam in the twisting magnetic field and condensed matter is considered. The analysis of the resonance conversions has demonstrated that in the LRM only two schemes are possible: (i) the heavy neutrino masses are (quasi)-degenerated; (ii) these masses are arbitrary but the mixing angles between light and heavy neutrinos are zero. Processes of the heavy neutrinos production at hadron colliders are also studied
Solar flares, solar neutrinos and νe -induced β-decays
No full textThe evolution equation for the electron neutrino flux traveling in the Sun is examined. Consideration would hold for any standard model extensions having massive neutrinos. It is conjectured that the neutrino possesses both dipole magnetic and
anapole moments while the solar magnetic field has twisting nature. Factors influencing on the electron neutrino flux, crossing a region of solar flares (SF's) are dened.
It is shown, that under passage of the electron neutrino flux through the region of the SF, three phenomena could be detected by the terrestrial observer. They are as
follows: (i) decreasing the number of the electron neutrinos; (ii) appearance of the νeL- and νXL-neutrinos; (iii) reduction of the β-decay rate for some elements of the periodic table
Резонансный переход для трех поколений Майорановских нейтрино
No full textWithin three flavor approximation the motion of the Majorana neutrino flux in
condensed matter and intensive magnetic field displaying the geometrical phase is
examined. It is assumed that the neutrinos possess the dipole magnetic moment
which value is close to the current experimental value. The evolution equation is
found. All the resonance transitions of the electron neutrinos flux are probed
Neutrino oscillations in intensive magnetic fields
No full textThe evolution of the neutrino flux traveling through condensed matter and intensive magnetic field is considered. As the examples of the intensive magnetic field the magnetic fields of the coupled sunspots and the collapsar jets are considered. It is assumed that the neutrinos possess both the dipole magnetic moment and the anapole moment while the magnetic field may takes the values ≥ 105 Gs and has the twisting nature. The problem is investigated within three neutrino generations. The possible resonance conversions of the neutrino flux are examined
- …
