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Showing 1 to 20 of 24 for “"PHENIX"”.
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Electron-Muon Correlations in Proton+Proton and Deuteron+Gold Collisions at PHENIX
… of electron-muon azimuthal correlations at the PHENIX experiment at RHIC in 200 GeV proton-proton and deuteron-gold collisions. Electron-muon pairs result from the semileptonic decay of D mesons, which come from correlated charm pairs. The pairs are measured at forward rapidity, with ∣η∣ < 0.5 …
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Control study of two-particle correlations in heavy ion collisions at RHIC-PHENIX
… being created. Here, a detailed study using the PHENIX detector is provided, in an attempt to measure a more accurate jet-induced two-particle correlation measurement than previously published and to reduce the bias observed in two-particle correlation measurements. The reduction in surface bias …
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Developing a radio frequency enclosure for the multiplicity vertex detector of the PHENIX experiment
Thesis (S.M. and S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1999.
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Measurement of double longitudinal asymmetries, A_{LL}, for pi0 production in polarized pp scattering at low Bjorken-x
… of the result at low x. During Run 13 at the PHENIX experiment, a total integrated luminosity of 155 pb⁻¹ and polariations of 50% and 53% were achieved for the two beams. In this thesis a double spin asymmetry for electromagnetic clusters from photons resulting from 0 and meson decays will be …
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Gluon polarization in the proton: constraints at low x from the measurement of the double longitudinal spin asymmetry for forward-rapidity hadrons with the PHENIX detector at RHIC
… spin asymmetries, $A_{LL},$ at the STAR and PHENIX experiments through 2006 were included in a QCD global analysis performed by Daniel de Florian, Rodolfo Sassot, Marco Stratmann, and Werner Vogelsang (DSSV), yielding the first direct constraints on the gluon helicity. The DSSV group found …
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Suppression of High Transverse Momentum Charged Hadrons in Au+Au Collisions at 200 GeV Nucleon-Nucleon Center of Mass Energy
… properties are detected and measured with the PHENIX detector. At these energies the colliding ions may form a thermalized distribution of quarks and gluons called the Quark-Gluon Plasma. The suppression of single hadrons still provides one of the strongest constraints on energy loss mechanisms …
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The proton's longitudinal spin structure studied through the weak interaction in pp collisions
… spin is particularly not well confined. The PHENIX experiment at RHIC has made measurements that have, and will, better confine these spin contributions. One of these measurements, made possible by a series of experimental upgrades, is a study of the single spin asymmetry in W boson …
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A study of nuclear effects using forward-rapidity hadron production and di-hadron angular correlations in sqrt(sNN) = 200 GeV d+Au and p+p collisions with the PHENIX detector at RHIC
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2011-09-26T12:50:25Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Meredith_Beau.pdf: 13172344 bytes, checksum: e248e8f07bc1072a74eb17bdc1a0c2b4 (MD5)
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Centrality Effects on Heavy-Flavor Quark Production and Invariant Yield in PHENIX Proton–Gold Collisions at Center-of-Mass Energy 200 GeV, and Assembly, Testing, Calibration, and Installation of the sPHENIX Hadronic Calorimeters
… heavy-quarks experience. This analysis uses the PHENIX detector at the Relativistic Heavy Ion Collider, which collected data from proton--gold collisions in 2015, with a trigger to preference the collection of the five-percent most-central collisions. This analysis uses the …
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Labor Strikes in the Columbus Textile Mills During the Summer of 1934
… Webbing and Tape Company, and the Eagle and Phenix Mills. On September 1, a nation-wide general strike began. Eight of the twelve mills in Columbus were inoperative due to the strike, and three of the remaining four mills were forced to shut down on the second day of the strike due to the …
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Direct Jet Reconstruction in Proton-Proton and Copper-Copper Collisions at √sNN = 200 GeV
… can give rise to a false jet signal. At the RHIC PHENIX experiment, jet reconstruction also has to cope with the limited aperture of the central arm spectrometers. To overcome both problems, which can distort the jet signal in the traditional reconstruction algorithms, this thesis develops an …
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Measurement of transverse single-spin asymmetries in π0 and η Meson production in √s = 200 GEV p↑ + p collisions with sPHENIX
The sPHENIX experiment is a next-generation collider detector at the Relativistic Heavy Ion Collider (RHIC) designed for rare jet and heavy-flavor probes of Au + Au, p + Au, and polarized p + p collisions. The experiment includes a large acceptance, granular electromagnetic calorimeter and very …
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Interspecific Hybridization Among Black Basses (Micropterus spp.) in the Chattahoochee River, Columbus Georgia
… River between Columbus, Georgia and Phenix City, Alabama and analyzed for hybridization using a combination of four microsatellite markers, morphometries, and mtDNA. While morphometries proved to be inadequate at confirming hybridization, microsatellite analyses identified 15.4% (N = …
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Properties of Fragmentation Photons in p+p Collisions at 200 GeV Center-of-Mass Energy
… + p environment. Combining data collected by the PHENIX detector during 2005 and 2006, the yield for fragmentation photons was measured to be on the order of several percent of all photons measured in association with a hadron with transverse momentum between 2 and 5 GeV/c. The use of two-particle …
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Serial and Single Crystal Studies of Ligand Binding to Radiation Sensitive Haem Protein DHP-B
… were solved using both CCP4i2 suite and Phenix. The structures displayed different binding modes and pockets present in DHP-B, making bonds with multiple different amino acids present in the binding pocket. The distal histidine (His55) always plays a role in binding due its flexibility. …
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J/ψ production and polarization with the inclusion of transverse momentum effects
… (CGI-GPM), we will provide SSA estimates for PHENIX@RHIC and other upcoming experiments (SMOG@LHC, NICA-SPD, SpinQuest@Fermilab).
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Investigation of mosA, a protein implicated in rhizopine biosynthesis
MosA is a protein found in Sinorhizobium meliloti L5-30 and has been suggested to be responsible for the biosynthesis of the rhizopine 3-O-methyl-scyllo-inosamine (3-MSI) from scyllo-inosamine (SI). However, we have shown MosA is a dihydrodipicolinate synthase (DHDPS) catalyzing the condensation of …
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Reputation as a Control Mechanism for Opportunistic Behavior in Supply Chains
There is a discussion on the major theories for controlling opportunistic behavior within exchanges and transactions, followed by a discussion of the role reputation plays within this framework. A model of how reputation influences opportunism was developed, and then empirically tested.
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The crystal structure of an aliphatic amidase from Geobacillus pallidus RAPc8
… using PHASER. The model was rebuilt with PHENIX before refinement using REFMAC5. The final model was of high quality with minimal errors. RAPcS amidase is homohexameric in solution and has a four-layer α-β-β-α structural fold that highly resembles nitrilase superfamily enzymes. It has an …
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Microstructural Observations of Laser-Sintered Specimens for Prosthodontic Applications
… files by a commercial laser sintering apparatus (Phenix Systems), using the dedicated Co-Cr alloy. Compatible dental porcelain was bonded to the coping specimen (North Shore Dental Labs, Lynn, MA). Specimens were sectioned with a slow-speed diamond saw, prepared for metallographic examination by …
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