20 research outputs found
On the role of the time scale Delta t in Bose-Einstein correlations
The time scale parameter, which appears in the Bose-Einstein
Correlations (BEC) treated in term of the Heisenberg uncertainty relations, is
reexamined. Arguments are given for the role of as a measure of the
particles' emission time rather than representing the strength property of the
correlated particles. Thus in the analyzes of the hadronic the
given value of ~ seconds is the particles' emission time prescribed
by the lifetime. In heavy ion collisions measures the emission
time duration of the particles produced from a nucleus of atomic number
which is here shown to be equal to \Delta t =(m_{\pi}a^2)/(\hbar
c^2})*A^{2/3} where a is about 1 fm, that is, proportional to the nucleus
surface area. This dependence agrees rather well with the experimental values deduced from the BEC analyzes of heavy ion collisions.Comment: 8 pages, 5 figure