W. M. Zhang
Kent State University
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Featured researches published by W. M. Zhang.
Nuclear Physics | 1998
B. D. Anderson; D. L. Prout; M. Palarczyk; A. Ahmidouch; A.R. Baldwin; D. Cooper; Charles C. Foster; W. Glöckle; Mohammad S. Islam; Cheri Lynn Hautala; K. Hicks; M. Khayat; B. Luther; R. Madey; D. M. Manley; I. Niculescu; J. Rapaport; G. Savopulos; J. Sowinski; E. Sugarbaker; R. Suleiman; I.J. van Heerden; J.W. Watson; H. Witała; XiaoDi Yang; W. M. Zhang
Abstract A complete set of spin observables was measured for the 2 H(p,n)2p reaction at 200 MeV at the Indiana University Cyclotron Facility (IUCF) with the high intensity polarized ion source (HIPIOS) and the Indiana Neutron Polarization Facility (INPOL). The incident proton beam was delivered successively in each of the three spin states, normal ( N ), sideways ( S ), and longitudinal ( L ). Two large-volume neutron polarimeters placed along the 0° and 24° beam lines measured the polarizations of the emitted neutrons in each of the three spin states. The measured cross sections and spin observables are compared with three-body Faddeev calculations, which generally agree with the data. The ratio of the longitudinal to transverse response is suppressed rather than enhanced, as predicted by some models.
ieee npss real time conference | 1999
J. Lin; F. Bieser; M. Bordua; M. Cherney; J. Chrin; I. Ferguson; V. Ghazikhanian; J. Gross; G. Harper; M. Howe; S. Jacobson; P. Kravtsov; C. Lianberger; C. McParland; T. S. McShane; J. Meier; I. Sakrejda; E. Yamamoto; W. M. Zhang
A hardware controls system has been implemented for the STAR experiment at RHIC. Approximately 10000 parameters governing experiment operation are currently controlled and monitored. The system is based on the Experimental Physics and Industrial Control System (EPICS). The architecture of STAR hardware controls are presented as well as the results of operation of the integrated baseline system. Novel features of the system include a specialized field bus (High-level Data Link Control-HDLC), new EPICS record support, control DEVice (CDEV) interfaces to accelerator and magnet control systems, and C++ based communication between STAR online and hardware controls and their associated databases.
arXiv: Nuclear Experiment | 1998
M. A. Lisa; N. N. Ajitanand; J. Alexander; D. Best; P. Brady; T. Case; B. Caskey; D. Cebra; J. L. Chance; I. Chemakin; P. Chung; V. Cianciolo; Brian J. Cole; K. Crowe; A. C. Das; James E. Draper; S. Gushue; M. Gilkes; M. Heffner; H. Hiejima; A. Hirsch; E. Hjort; L. Huo; M. Justice; M. Kaplan; D. Keane; J. Kintner; D. Krofcheck; R. Lacey; J. Lauret
A primary goal of high-enery heavy ion physics is to create and study the quark-gluon plasma (QGP), a phase of matter in which partonic- instead of hadronic- degrees of freedom describe the system. Several transport, hydrodynamic, and nucleation theories1,2,3,4 suggest that energy densities achieved in central collisions between heavy ions at AGS energies may be sufficient to create the QGP.
