1,323 research outputs found
The role of local and global strangeness neutrality at the inhomogeneous freeze-out in relativistic heavy ion collisions
The decoupling surface in relativistic heavy-ion collisions may not be
homogeneous. Rather, inhomogeneities should form when a rapid transition from
high to low entropy density occurs. We analyze the hadron "chemistry" from
high-energy heavy-ion reactions for the presence of such density
inhomogeneities. We show that due to the non-linear dependence of the particle
densities on the temperature and baryon-chemical potential such inhomogeneities
should be visible even in the integrated, inclusive abundances. We analyze
experimental data from Pb+Pb collisions at CERN-SPS and Au+Au collisions at
BNL-RHIC to determine the amplitude of inhomogeneities and the role of local
and global strangeness neutrality.Comment: 8 pages, 6 figures, To appear in proceedings of the workshop on
'Particle Correlations and Femtoscopy' September 9-11, 2006, Sao Paulo,
Brazi
Power and temporal commitment preference: An investigation in Portugal, Turkey, and the United States
The current research explores the impact of power on temporal commitment preference (an individual?s preference for shorter or longer time durations for agreements in decision making situations) across three countries: Portugal, Turkey, and the United States. A pilot study (N = 356) established cultural differences in uncertainty avoidance, which was expected to impact choices and behaviors involving power and temporality. The main study (N = 433) investigated the relationship between power and temporal commitment preference. Across all countries, high power individuals preferred shorter temporal commitments than low power individuals. In addition, the U.S. participants preferred longer temporal commitments than either the Portuguese or Turkish participants. We argue that differences in uncertainty avoidance help explain some of the differences in individuals? temporal commitment preferences across diverse cultural settings. Implications for practice and future directions are also discussed.Power, Time, National culture, Uncertainty avoidance
Inhomogeneous freeze-out in relativistic heavy-ion collisions
A QCD phase transition may reflect in a inhomogeneous decoupling surface of
hadrons produced in relativistic heavy-ion collisions. We show that due to the
non-linear dependence of the particle densities on the temperature and
baryon-chemical potential such inhomogeneities should be visible even in the
integrated, inclusive abundances. We analyze experimental data from Pb+Pb
collisions at CERN-SPS and Au+Au collisions at BNL-RHIC to determine the
amplitude of inhomogeneities.Comment: 8 pages, 5 figure
- …