19 research outputs found
rho0 Production in Cu+Cu Collisions at 200 and 62.4 GeV in STAR
The results on rho(770)0 production in Cu+Cu collisions at 200 and 62.4 GeV
in STAR are presented. The rho0 is measured via its hadronic decay channel and
used as a sensitive tool to examine the collision dynamics in the hadronic
medium.Comment: 4 pages, 6 figures, to appear at the proceedings of the 21st
International Conference on Ultrarelativistic Nucleus-Nucleus Collisions,
QM2009, March 30 - April 4, Knoxville, T
K*(892)0 Production in Relativistic Heavy Ion Collisions at sqrt(s_NN) = 130 GeV
Preliminary results on the K*(892)0 -> pi + K production using the
mixed-event technique are presented. The measurements are performed at
mid-rapidity by the STAR detector in sqrt(s_NN) = 130 GeV Au-Au collisions at
RHIC. The K*0 to negative hadron, kaon and phi ratios are obtained and compared
to the measurements in e+e-, pp and pbarp at various energies.Comment: 8 pages, 3 figures, proceedings of Strange Quarks in Matter
(SQM2001), Frankfurt am Main, Germany, to be published in J. Phys.
Resonance Production
Recent results on rho(770)^0, K(892)^*0, f_0(980), phi(1020), Delta(1232)^++,
and Lambda(1520) production in A+A and p+p collisions at SPS and RHIC energies
are presented. These resonances are measured via their hadronic decay channels
and used as a sensitive tool to examine the collision dynamics in the hadronic
medium through their decay and regeneration. The modification of resonance
mass, width, and shape due to phase space and dynamical effects are discussed.Comment: 8 pages, 10 figures, proceedings of the Quark Matter 2004, in
Oakland, California, to be published in Journal of Physics G: Nuclear and
Particle Physic
, K and f Production in Au-Au and pp Collisions at = 200 GeV
Preliminary results on , KK and production using the mixed-event
technique are presented. The measurements are performed at mid-rapidity by the
STAR detector in = 200 GeV Au-Au and pp interactions at RHIC.
The results are compared to different measurements at various energies.Comment: 4 pages, 6 figures. Talk presented at Quark Matter 2002, Nantes,
France, July 18-24, 2002. To appear in the proceedings (Nucl. Phys. A
Improving the dE/dx calibration of the STAR TPC for the high-pT hadron identification
We derive a method to improve particle identification (PID) at high
transverse momentum () using the relativistic rise of the ionization
energy loss () when charged particles traverse the Time Projection
Chamber (TPC) at STAR. Electrons triggered and identified by the Barrel
Electro-Magnetic Calorimeter (BEMC), pure protons and pions from (), and
decays are used to obtain the value and
its width at given . We found that the deviation of the
from the Bichsel function can be up to () in p+p
collisions at GeV taken and subsequently calibrated in year
2005. The deviation is approximately a function of independent of
particle species and can be described with a function of . The deviations obtained with this method are used to
re-calibrate the data sample from p+p collision for physics analysis of
identified hadron spectra and their correlations up to transverse momentum of
15 GeV/. The ratio of (dominantly from -conversion) is
also used to correct the residual asymmetry in the negative and positive
charged hadrons due to momentun distortion in the STAR TPC.Comment: 18pages, 10 figure
Spencer Netto Spencer Netto Spencer Netto Spencer Netto Spencer Netto A porcine model for teaching surgical cricothyridootomy 193 Teaching Teaching Teaching Teaching Teaching A porcine model for teaching surgical cricothyridootomy A porcine model for teac
ABSTRACT ABSTRACT ABSTRACT ABSTRACT ABSTRACT Objective: Objective: Objective: Objective: Objective: To evaluate the acceptability of an educational project using A porcine model of airway for teaching surgical cricothyroidotomy to medical students and medical residents at a university hospital in southern Brazil. Methods Methods Methods Methods Methods: we developed a teaching project using a porcine model for training in surgical cricothyroidotomy. Medical students and residents received lectures about this surgical technique and then held practical training with the model. After the procedure, all participants filled out a form about the importance of training in airway handling and the model used. Results Results Results Results Results: There were 63 participants. The overall quality of the porcine model was estimated at 8.8, while the anatomical correlation between the model and the human anatomy received a mean score of 8.5. The model was unanimously approved and considered useful in teaching the procedure. Conclusion Conclusion Conclusion Conclusion Conclusion: the training of surgical cricothyroidotomy with a porcine model showed good acceptance among medical students and residents of this institution