34 citations · 56 across the 3 of their papers we have counts for
6 papers
Decay Law of Relativistic Particles: Quantum Theory Meets Special Relativity
K. Urbanowski
Late time properties of moving relativistic particles are studied. Within the proper relativistic treatment of the problem we find decay curves of such particles and we show that l…
False vacuum as an unstable state: possible cosmological implications
K. Urbanowski
Recent LHC results concerning the mass of the Higgs boson indicate that the vacuum in our Universe may be unstable. We analyze properties of unstable vacuum states from the point o…
Possible Emission of Cosmic -- and --rays by Unstable Particles at Late Times
K. Urbanowski, K. Raczynska
Not all astrophysical mechanisms of the emission of electromagnetic radiation including -- and -- rays coming from the space are clear. We find that charged unstable particle…
General properties of the evolution of unstable states at long times
K. Urbanowski
An effect generated by the nonexponential behavior of the survival amplitude of an unstable state at the long time region is considered. It is known that this amplitude tends to ze…
Need the masses of unstable particles and their antiparticles be equal in the CPT--invariant system?
K. Urbanowski
We show that the real parts of diagonal matrix elements of the exact effective Hamiltonian governing the time evolution in the subspace of states of neutral kaons and similar parti…
On masses of unstable particles and their antiparticles in the CPT-invariant system
K. Urbanowski
We show that the diagonal matrix elements of the effective Hamiltonian governing the time evolution in the subspace of states of an unstable particle and its antiparticle need not…