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Showing 1 to 17 of 17 for “"Mark III"”.
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Evaluation of the Mark III spacesuit : an experimental and computational modeling approach
… suit evaluated for this research was NASA's Mark III (MkIII) Planetary Technology Demonstrator SSA, built to test the next generation in planetary exploration capabilities, improving upon Apollo era technology. The hip brief assembly (HBA) is built with three nested bearings, each with a …
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Study of Ds and D*s mesons
… 4.14 GeV /c2. The data were collected with the Mark III detector at the storage ring SPEAR at the Stanford Linear Accelerator Center. [Abstract continued in document]
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Observation of eta-c and other structures in the radiative decay psi to gamma eta pi-plus pi-minus
The Mark III detector at SPEAR was used to observe the exclusive radiative decay [...] A spin-parity analysis was performed to determine the quantum numbers of the resonances responsible for this structure. However, the result was seen to be model dependent, so that it was not possible to …
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Direct measurement of the decays of charmed D mesons
… the decay of the t/1(3770) are observed by the Mark III detector at SPEAR. A new technique is applied to these data to derive D branching fractions which do not rely on the measurement of D production cross sections. Measurements are presented for three decay modes of the D0 ( K-1pi+, K-1pi-1pi+ …
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Observations of new cabibbo suppressed decays of the D meson
… new decay modes of the charmed D meson using the Mark III detector at the SPEAR e+e-storage ring. Observations of four new decay modes are presented along with upper limits for three others We have measured a cross section times branching ratio of .035 +-.008 +-.004 nb for the ""color suppressed"" …
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Study of D-star mesons produced in electron positron annihilations at 4.14 GeV center of mass energy
… of mass energy of 4.14 GeV are observed by the Mark III detector at SPEAR. The recoil mass spectrum of the D mesons is used to extract the branching fractions of the charged and neutral D*. Measurements are presented for the two decay modes of the D*O (-'yDo, and :71'0DO) and the three decay …
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Search for CP violation in D-meson decays
Using data from the Mark III detector at the e+e- storage ring at SPEAR, an upper limit of .30 at the 90% confidence level is set on the magnitude of the CP asymmetry Acp for the CP eigenstate no -+ K+ K-. This falls within the preexisting limit of .45 @90% CL set by FNAL experiment E691 using the …
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"Non- D`D decays of the y"" (3770)"
… in a sample of 9.56±0.48 pb-1 collected by the Mark III detector at the SPEAR storage ring, at the Stanford Linear Accelerator Center. To be more specific, a search for inclusive p, A, and c)l decay modes of the '1'""(3770) is performed in this data sample. Backgrounds due to the decays of the …
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Non-D meson anti D meson decays of the Psi'' meson(3770)
… of 9.56 $\pm$ 0.48 pb$\sp{-1}$ collected by the Mark III detector at the SPEAR storage ring, at the Stanford Linear Accelerator Center. To be more specific, a search for inclusive p, $\bar \Lambda$, and $\phi$ decay modes of the $\Psi\sp{\prime\prime}$(3770) is performed in this data sample. …
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Search for CP violation in D-meson decays
Using data from the Mark III detector at the $e\sp+e\sp-$ storage ring at SPEAR, an upper limit of.30 at the 90% confidence level is set on the magnitude of the CP asymmetry $A\sb{cp}$ for the CP eigenstate $D\sp0\to K\sp+K\sp-.$ This falls within the preexisting limit of.45 @ 90% CL set by FNAL …
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Modeling and tradespace exploration of a space suit hip bearing assembly using multi-degree-of-freedom range of motion analysis
… changes from flexing components. The NASA Mark III suit addresses this problem using a Hip Brief Assembly (HBA), composed of rigid, constant-volume sections connected by bearings. However, due to the rigid components and fixed degrees of freedom (DoFs), the HBA and other hard-component …
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A study of short-lived deuterium and short-lived deuterium* mesons
… GeV/c$\sp2$. The data were collected with the Mark III detector at the storage ring SPEAR at the Stanford Linear Accelerator Center. The $D\sb{s}$ mesons are produced predominantly in the reaction $e\sp+e\sp-\to D\sbsp{s}{\pm}D\sbsp{s}{\*\mp}$, allowing measurement of the $D\sb{s}$ and …
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Observation of structure in the phi phi system produced in radiative J/psi decays
A sample of 4.9 million JI'I/J decays from the Mark III detector at SPEAR is used to study the radiative decay J I'I/J ---+ i¢¢. The decay is observed in two final states; iK+K-K+K-and the previously unobserved iK+K-K sKl. The new final state and an improved analysis of the all charged state allow …
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Observation of Eta-C and Other Structures in the Radiative Decay Psi to Gamma Eta Negative Pion Positive Pion
The Mark III detector at SPEAR was used to observe the exclusive radiative decay (psi) (--->) (gamma)(eta)(pi)('+)(pi)('-). The (eta)(,c) was seen as an intermediate state in this decay, (psi) (--->) (gamma)(eta)(,c), (eta)(,c) (--->) (eta)(pi)('+)(pi)('-). The product branching ratio B((psi) …
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Solution of open region electromagnetic scattering problems on hypercube multiprocessors
… performance can be obtained using the JPL Mark III hypercube and the Thinking Machine's CM2. Second, the use of the finite element method for the solution of the scattering by bodies constituted of composite materials is presented. For finite bodies situated in an unbounded space, the use …
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A sytemic study of mining accident causality : an analysis of 91 mining accidents from a platinum mine in South Africa
… from the Swiss Cheese Model, combining the Mark III version of the Swiss Cheese Model, the Nertney Wheel and safety management principles. The main section of the framework is made up of three layers of accident causality: proximal causes, workplace factors and systemic factors. The second …
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A systemic study of mining accident causality: an analysis of 100 accidents from a copper mining company in Zambia
… The framework had used the concepts from the Mark III of the Swiss Cheese Model, Incident Cause Analysis, safety management principles and the Nertney Wheel. The sections involved in the existing framework of Bonsu (2013) are metadata, accident barrier analysis and causal analysis. The …