Marc Nußbaum

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Multileaf Collimators (MLC) consist of (currently 20-100) pairs of movable metal leaves which are used to block radiation in Intensity Modulated Radiation Therapy (IMRT). The leaves modulate a uniform source of radiation to achieve given intensity profiles. The modulation process is modeled by the decomposition of a given non-negative integer matrix into a(More)
  • Naoki Awaji, J. D ’ AMoRE, +20 authors S. W ILLIAMS
  • 1986
A model incorporating K* resonance contributions and simple backgrounds is shown to quantitatively reproduce the mass dependence of the partial wave amplitudes governing the production and decay of the iir” ~+?rsystem. A fit of this model to these amplitudes confirms the resonance interpretations of the well-established l+ Kl(1400), the 2+ K; (1430), the(More)
We present the first study of rapidity gaps in ee annihilations, using Z decays collected by the SLD experiment at SLAC. Our measured rapidity gap spectra fall exponentially with increasing gap size over five decades, and we observe no anomalous class of events containing large gaps. This supports the interpretation of the large-gap events measured in pp(More)
We describe test beam results from a prototype cerenkov Ring Imaging Detector (CRID) for the SLD experiment at the SLAC Linear Collider (SLC). The system includes both liquid and gas radiators, a long drift box containing gaseous TMAE and a proportional wire chamber with charge division readout. Measurements of the multiplicity and detection resolution of(More)
We present the first study of rapidity gaps in ee annihilations, using Z decays collected by the SLD experiment at SLAC. Our measured rapidity gap spectra fall exponentially with increasing gap size over five decades, and we observe no anomalous class of events containing large gaps. This supports the interpretation of the large-gap events measured in pp(More)
Summary form only given. The SLAC Large Detector (SLD) barrel Cerenkov ring imaging detector (CRID) is now complete and has participated in SLD data runs. Performance tests of the drift boxes and detectors both in the SLD and in separate test stands have been performed. Tests in SLD with the fiber-optic calibration system include the demonstration and(More)
All of the major subsystems for the barrel Cerenkov Ring Imaging Detector (CRID) in the SLAC Large Detector (SLD) at Stanford Linear Accelerator Center (SLAC) have now been commissioned. The CRID participated in the SLD engineering run of June-August 1991. In a cosmic ray test at the end of the run, Cerenkov rings were observed for the first time. Initial(More)
High statistics data for the reaction K-p + K-?r+n at 11 GeV/c have been obtained in the LASS spectrometer at SLAC. A spherical harmonic moments analysis provides clear evidence for the production of the complete leading orbitally excited K* series up through Jp = 5-. New measurements are made of the masses and widths of the l-K* (892)) 2+ K* (1430)) 3-K*(More)
Clear evidence is presented for an R*-resonance of mass 2474 f 12 MeV/c2 and width 72 f 33 MeV/c2 in K-p interactions at 11 GeV/c. The state is observed in the s2-~+~-decay mode, and the corresponding inclusive cross section, corrected for st-7r " ~' decay, is estimated to be 290 f90 nb. Data demonstrating the existence of excited baryons with strangeness-3(More)