7 research outputs found
Quadrupole deformation of deuterons and final state interaction in scattering on tensor polarized deuterons at CEBAF energies
The strength of final state interaction (FSI) between struck proton and
spectator neutron in scattering depends on the alignment of
the deuteron. We study the resulting FSI effects in the tensor analyzing power
in detail and find substantial FSI effects starting at still low missing
momentum p_m \gsim 0.9 fm^{-1}. At larger p_m \gsim 1.5 fm^{-1}, FSI
completely dominates both missing momentum distribution and tensor analyzing
power. We find that to a large extent FSI masks the sensitivity of the tensor
analyzing power to models of the deuteron wave function. For the transversely
polarized deuterons the FSI induced forward-backward asymmetry of the missing
momentum distribution is shown to have a node at precisely the same value of
as the PWIA missing momentum distribution. The position of this node is
not affected by FSI and can be a tool to distinguish experimentally between
different models for the deuteron wave function.Comment: 24 pages, figures available from the authors on reques
Spin dependence in high elastic pp and np scattering
Using the polarized proton capability of the Argonne ZGS the authors recently made 90 degrees /sub cm/ measurements of elastic pp scattering from 6 to 11.75 GeV/c, determining the parallel and anti- parallel pure initial spin state cross sections and the associated spin-spin parameter A/sub nn/ with the spins normal to the scattering plane. They find that the parallel to anti-parallel cross section ratio rises dramatically from 1.2+or-.06 at p/sub t//sup 2/=3.3 (GeV /c)/sup 2/ to 3.2+or-.4 at 4.8 (GeV/c)/sup 2/, similar to the p/sub T //sup 2/ dependence previously observed at the fixed laboratory momentum of 11.75 GeV/c. They have also extended the measurements at 6 GeV/c and find that A/sub nn/ has a small but sharp rise at 90 degrees /sub cm/. In addition a month of 12 GeV/c polarized deuteron acceleration in the ZGS enabled them to measure two A/sub nn/ at two points at 6 GeV/c for np elastic scattering: A/sub nn/=-.17+or-.04 at p/sub T//sup 2/=.8, A/sub nn/=-.19+or-.05 at P/sub T//sup 2/=1.0. These values are opposite in sign from the pp results at the same momentum. (4 refs)
ANALYZING POWER MEASUREMENTS FOR p-p ELASTIC SCATTERING AT HIGH-Pâ„2
Au Laboratoire National de Brookhaven (AGS), la mesure de la puissance d'analyse d'une diffusion Ă©lastique p-p de 28 GeV/c a Ă©tĂ© effectuĂ©e Ă pâ„2 = 5,95 et 6,56 (GeV/c)2 en utilisant une cible de protons polarisĂ©e et un faisceau de protons non-polarisĂ©. Les rĂ©sultats montrent que la puissance d'analyse, A, augmente rapidement avec pâ„2.The analyzing power in 28 GeV/c proton-proton elastic scattering was measured at pâ„2 = 5.95 and 6.56 (GeV/c)2 using a polarized proton target and an unpolarized proton beam at the Brookhaven National Laboratory AGS. Results indicate that the analyzing power, A, is rising sharply with pâ„2
Development of an Instrument to Measure the Moral Judgments of Sport Managers
The purpose of this study was to develop an instrument to measure the moral judgments of sport managers called the Moral Judgments of Sport Managers Instrument (MJSMI). More specifically, our intention was to measure moral judgment on a unidimensional level given past research suggesting moral judgment is a unidimensional construct (Hahm, Beller, & Stoll, 1989; Kohlberg, 1984; Piaget, 1932; Rest, 1979, 1986). The MJSMI contains 8 moral dilemmas/stories in the context of sport management. Sport managers respond to the dilemmas on a four-point Likert scale. Three pilot studies were undertaken to develop the MJSMI. Exploratory factor analysis and internal consistency analysis were the primary methods for assaying reliability and validity. Results consistently showed that sport managersâ responses vary depending on the nature of the moral scenario and thus do not indicate a unidimensional construct. The reasons for inconsistent responses are thoroughly discussed