Chuck Cruse

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Almost all SoC designs today use hardware prototyping at some point of the development cycle to perform hardware/software validation or test interfaces to real-world stimulus. Recently, virtual prototypes have emerged as a way to run system level tests and perform hardware/software co-simulation before silicon or hardware prototypes are available. Does the(More)
Measurements of the kinematic distributions of J/ψ mesons produced in p−C, p−Ti and p−W collisions at √ s = 41.6 GeV in the Feynman-x region −0.34 < xF < 0.14 and for transverse momentum up to pT = 5.4 GeV/c are presented. The xF and pT dependencies of the nuclear suppression parameter, α, are also given. The results are based on 2.4 · 10 5 J/ψ mesons in(More)
The inclusive production cross sections of the strange vector mesons K * 0 , K * 0 , and φ have been measured in interactions of 920 GeV protons with C, Ti, and W targets with the HERA-B detector at the HERA storage ring. Differential cross sections as a function of rapidity and transverse momentum have been measured in the central rapidity region and for(More)
The muon pretrigger system of the HERA-B experiment is used to find muon track candidates as one of the inputs of the first level trigger system (FLT). Due to the interaction rate of 40 MHz required to achieve an accuracy of 0.17 on sin(2β) after one year of running the total input of the muon pretrigger system is about 10 GByte/s. The latency to define(More)
The proton-nucleon cross section ratio R = Br(Υ → l + l −) · dσ(Υ)/dy| y=0 / σ(J/ψ) has been measured with the HERA-B spectrometer in fixed-target proton-nucleus collisions at 920 GeV proton beam energy corresponding to a proton-nucleon cms energy of √ s = 41.6 GeV. The combined results for the decay channels Υ → e + e − and Υ → µ + µ − yield a ratio R =(More)
A measurement of the polarization of Λ and Λ baryons produced in pC and pW collisions at √ s = 41.6 GeV has been performed with the HERA B spectrometer. The measurements cover the kinematic range of 0.6 GeV/c < p ⊥ < 1.2 GeV/c in transverse momentum and −0.15 < x F < 0.01 in Feynman-x. The polarization results from the two different targets agree within the(More)
The mid-rapidity (dσ pN /dy at y=0) and total (σ pN) production cross sections of J/ψ mesons are measured in proton-nucleus interactions. Data collected by the HERA-B experiment in interactions of 920 GeV/c protons with carbon, titanium and tungsten targets are used for this analysis. The J/ψ mesons are reconstructed by their decay into lepton pairs. The(More)
We present the design and commissioning of a new multiplicity veto for the HERA B detector, a fixed-target spectrometer originally designed to study the physics of B mesons in proton-nucleus interactions. The HERA B trigger is a message-driven multi-level track trigger. The first level trigger (FLT) consists of custom-made electronics, and the higher(More)
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