Open AccessPion and kaon correlations in high energy heavy-ion collisions. Annual report, April 1, 1995--March 31, 1996
Author(s) -
K. Wolf
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/629428
Subject(s) - pion , physics , nuclear physics , rapidity , spectrometer , projectile , large hadron collider , antiproton , spectral line , particle physics , excitation function , deuterium , ion , nuclear reaction , proton , optics , astronomy , quantum mechanics
Data analysis is in progress for recent experiments performed by the NA44 collaboration with the first running of 160 A GeV {sup 208}Pb-induced reactions at the CERN SPS. Identified singles spectra were taken for pions, kaons, protons, deuterons, antiprotons and antideuterons. Two-pion interferometry measurements were made for semi-central-triggered {sup 208}Pb + Pb collisions. An upgraded multiple-particle spectrometer allows high statistics data sets of identified particles to be collected near mid-rapidity. A second series of experiments will be performed in the fall of 1995 with more emphasis on identical kaon interferometry and on the measurement of rare particle spectra and correlations. Modest instrumentation upgrades by TAMU are designed to increase the trigger function for better impact parameter selection and improved collection efficiency of valid events. An effort to achieve the highest degree of projectile-target stopping is outlined and it is argued that an excitation function on the SPS is needed to better understand reaction mechanisms. Analysis of experimental results is in the final stages at LBL in the EOS collaboration for two-ion interferometry in the 1.2 A GeV Au+Au reaction, taken with full event characterization