Now showing items 13671-13680 of 13708
Light-curve and period changes of AB Andromedae
New photoelectric observations of AB And obtained between 1989 and 1992 have been used, together with all available light curves from the literature, to study the light-curve variation of the system and its probable ...
Compensation of lepton charge of matter with relic anti-sneutrinos
We reconsider the idea of the leptonic photon by taking into account the possible compensation of the lepton charge of matter with relic anti-sneutrinos. As a consequence of this compensation we have shown that the available ...
A search for the fourth SM family
Arguments favouring the existence of a fourth fermion family in the framework of the Standard Model are given. The masses of the fourth family neutrino, charged lepton and down quark are close to each other within an ...
Pair production of scalar leptoquarks at TeV energy γp colliders
Scalar leptoquark pair production in high energy γ -proton collisions is investigated. We show that future TeV energy γ p colliders are convenient places for searching for scalar leptoquarks up to the masses of a few TeV.
Neutrino and antineutrino elastic scattering and photoneutrino reactions
The processes ν ν → ν ν , ν ¯ ν → ν ¯ ν , ν ¯ ν → 2 γ , and ν γ → ν γ , which are of astrophysical interest, are calculated both in the electroweak model and in the magnetic model when the ...
Euler-form actions and the vanishing of the cosmological constant
We investigate the conditions of the vanishing cosmological constant and the presence of gravity and vector gauge fields in a D -dimensional non-Abelian Kaluza-Klein theory based on a dimensionally continued ...