Superenergetic Cosmic Particles and Electromagnetic Waves

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.

دراسة تشتت نترينو ديراك مع العزوم الكهرطسية في حقل مغناطيسي دوراني

Theoretical studies and experimental measurements have proved the existence of magnetic moments of the neutral neutrino particle, so that its participation in the electromagnetic interactions in the nature cannot be neglected. The problem of the solar neutrino (Decreasing the solar neutrino bundle, which arrived to the earth) was one of the an understandable issues in the neutrino physics.

Determination of the neutrino mass through the study of the energy spectrum of radiation of Strontium-90 isotope

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 substantial 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.

الدراسات الكوسمولوجية تثبت أن للنترينو كتلة محددة

بنيت نظرية فرمي على افتراض أن الكتلة السكونية للنترينو تساوي الصفر. و قد جرت محاولات عديدة لإختبار صحة الفرضية تجريبيا، إلا أن جميعها باءت بالفشل. في مؤتمر النترينو المنعقد عام ١٩٩٠ ، اقترح D.W.Sciama النظرية التالية: إن الفوتونات الصادرة عن تفكك نترينوهات المادة المظلمة في درب التبانة تؤلف المنبع الرئيسي للتشرد الواسع الانتشار في الوسط بين النجوم.