W Busza

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This is the Report of a Committee charged by Dr. John Marburger, Director of Brookhaven National Laboratory, to review potentially catastrophic processes that might be initiated by heavy ion collisions at the Relativistic Heavy Ion Collider. Our conclusion is that the candidate mechanisms for catastrophe scenarios at RHIC are firmly excluded by existing(More)
Search for pair production of third-generation scalar leptoquarks and top squarks in proton–proton collisions at s = 8 TeV. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Search for pair production of third-generation scalar leptoquarks and top squarks in proton–proton collisions at √ s(More)
Citation Alver, B. et al. " Charged-particle multiplicity and pseudorapidity distributions measured with the PHOBOS detector in Au+Au, Cu+Cu, d+Au, and p+p collisions at ultrarelativistic energies. " Physical Review C 83. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the(More)
We present the first measurements of the pseudorapidity distribution of primary charged particles in Cu+Cu collisions as a function of collision centrality and energy, sqrt[s_{NN}]=22.4, 62.4, and 200 GeV, over a wide range of pseudorapidity, using the PHOBOS detector. A comparison of Cu+Cu and Au+Au results shows that the total number of produced charged(More)
The PHOBOS experiment at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory is studying interactions of heavy nuclei at the largest energies available in the laboratory. The high multiplicity of particles created in heavy ion collisions makes precise vertex reconstruction possible using information from a spectrometer and a(More)
We present transverse momentum distributions of charged hadrons produced in Au+Au collisions at √ s NN = 200 GeV. The evolution of the spectra for transverse momenta p T from 0.25 to 5 GeV/c is studied as a function of collision centrality over a range from 65 to 344 participating nucleons. We find a significant change of the spectral shape between p¯ p and(More)
We discuss speculative disaster scenarios inspired by hypothetical new fundamental processes that might occur in high energy relativistic heavy ion collisions. We estimate the parameters relevant to black hole production ; we find that they are absurdly small. We show that other accelerator and (especially) cosmic ray environments have already provided far(More)
The performance of a pm-prototype of the SLD Warm Iron Calorimeter (WIC) build with proportional tube cathode pad readout has been studied. The calorimeter was found to have an average resolution of 36.7 f 0.2% for muons at 2.0, 5.0 and 10.5 GeV and 81 f 2%/a for pion showers at 5.0 and 10.5 GeV. The mean energy found for the pion showers was consistent(More)
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