Showing papers by "M. Abolins published in 1986"
TL;DR: The p-bar-2 produced Lambda-bar's have the same magnitude and sign of polarization as the p-2produced ..lambda..'s whereas the ..lambda ..'s from K/sup -/p interactions are more highly polarized and in the opposite direction.
Abstract: We have measured the polarization of $\ensuremath{\Lambda}'s$ in inclusive $\mathrm{pp}$ and ${K}^{\ensuremath{-}}p$ reactions and of $\overline{\ensuremath{\Lambda}}'s$ in $\overline{p}p$ interactions at a beam momentum of 176 GeV/c. Data were taken in the beam-fragmentation region with hyperon transverse momenta from 0.2 to 1.5 GeV/c. The $\overline{P}$ produced $\overline{\ensuremath{\Lambda}}'s$ have the same magnitude and sign of polarization as the $p$-produced $\ensuremath{\Lambda}'s$, whereas the $\ensuremath{\Lambda}'s$ from ${K}^{\ensuremath{-}}p$ interactions are more highly polarized and in the opposite direction.
31 citations
TL;DR: Some of the physics that motivated the design and the reasons for building a new detector at the Tevatron Collider at this time are discussed and a possible construction schedule is presented in the fifth.
Abstract: The idea of a major detector in the Dd area of the Tevatron Collider was conceived in the summer of 1983. The Fermilab Program Advisory Committee suggested to Director Lederman that he form a substantial collaboration to design and build a second detector for the Tevatron Collider to complement CDF. He invited Professor Paul Grannis of the State University of New York at Stony Brook to form such a collaboration with the aim of constructing in a timely way a powerful detector complementary to CDF in its capabilities. The group, whose current membership and institutional affiliations are given in Appendix A, was assembled that summer and fall, and the first Dd Design Report,' which specified the detector parameters and capabilities, was finished by December 1983. This report has been refined and improved and has been issued as a new version' in December of 1984. Most of the technical content of this paper is derived from that Design Report. In the first section of this paper, I discuss some of the physics that motivated our design and summarize the reasons for building a new detector at the Tevatron Collider at this time. In the second section, I outline the basic capabilities of the detector. The main components of the detector are discussed in the third section, the electronics and data acquisition system in the fourth, and finally a possible construction schedule is presented in the fifth.