This work aims to explane and analysise some cosmic
particles that reach to the earth with super high energy
using the hypothesis of increasing the speed of light dated
to ancient past time ,based on the energy conservation law
and the mechanism
of transformation between particle state
and wave state.As example ,the speed of neutrin has been
taken for studying.
In this work, using a scintillation detector with Strontium-90 source as a try to
measure the electronic neutrino mass from a simple technique and different from what is
used in this area where current techniques used are very complex and require s
ubstantial
amounts.
Also, detector calibration (to find the straight calibration equation), in addition to
identified the maximum energy of β- particles (electrons), experimentally, by selection the
channel number and then finding the energy value from the calibration equation (as a
straight line).
We have studied the disintegration changed energy with absorbent material which is
an aluminum slices that have different thickness.
We have observed the decrease in the values of the maximum energy of the electrons
with increases the thickness of the slices. The energy changes with thickness as: E = f (x),
(a straight line have a negative inclination).
Applying Fermi 's theory and Kurie's plot allowed to find the maximum energy of
disintegration electrons (1697,58 keV), this value is so close to experimental value
(1653,45 keV), with dubity (2,6%)
We have found that the electronic mass neutrino mass is almost to be non-existent, or
we can said that the Strontium-90 disintegration does not allow to measure mass neutrino
mass accurately, this is due to the high value of the disintegration energy of the Strontium-
90 isotope.
In this research, we reviewed how to get the relationship of the neutrino oscillation
probability in the two flavor approximation, and tested the theoretical model of the
oscillation solution. We show that the oscillation probability of neutrino re
lates with
neutrino energy, length of the baseline (the distance between the source and the detector),
mixing angle , and square mass difference
2
2
2
1
2
12 m m m . This research shows that in
order to occur the oscillation of neutrino, it must be at least one of the mass states different
of zero. This means that the relationship 0 2
12 m must be verify. In other words neutrino
must have non zero mass. This result holds a huge physical importance. The first regards
the Standard Model of elementary particles, which considered neutrino massless. The
second regards the OPERA experiment, where neutrino have non zero mass, and cannot
spreading fast equal to the speed of light and so this does not agree with the experience of
OPERA, which found that the neutrino spreading faster than the speed of light in a
vacuum.
In this research the differential cross section for elastic scattering of electron neutrino (or anti neutrino) on the electron was calculated within and outside the frame work of the Standard Model (SM) of elementary particle physics. The mathematica
l relation of deviation from this model was also calculated. This study showed that there is a deviation from the standard model of the order for the electron neutrino flavor. The reference [16] was not able to appear it quite clearly and independently, but It showed the deviation on average for all flavors of neutrino together. Due to this deviation is very small, one can be neglected and therefore do not need to expand the framework of the standard model to include the electron neutrino mass, because in this case, it is located inside its framework.
The contribution of relative light particles and relative neutrinos in the cosmic
Omega-density parameter (W) was separately calculated based on the data of Wilkinson
Microwave Anisotropy Probe. Also it has been shown that the effect of the relativ
e
particles circulating in the universe in Omega-density parameter is roughly equivalent to
the effect of the Big Bang neutrinos in this parameter and the universe will remain in the
vicinity of the critical situation.
