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Showing 1 to 8 of 8 for “"Neutron structure"”.
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Neutron Structure Functions Measured with Spectator Tagging
<p>We know much less about the neutron than the proton due to the absence of free neutron targets. Neutron information has to be extracted from data on nuclear targets like deuterium. This requires corrections for off-shell and binding effects which are not known from first principles and therefore …
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Disentangling the EMC effect: from free to bound nucleon structure
… on fixed targets allow for the study of the structure of nucleons. While the structure of the free proton has been well measured, the free neutron structure and the modification of nucleon structure in the nuclear environment, the EMC effect, remain open questions. Studies suggest that the …
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Test of New Readout Electronics for the BONuS12 Experiment
… providing a large amount of data on the proton structure function. However, because of the instability of free neutrons, fewer experiments have been able to study the neutron structure function. The BONuS collaboration at Jefferson Laboratory addresses this challenge by scattering electrons off …
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Structural and functional analysis of glycosyltransferase mechanisms
… including two dozen high resolution X-ray structures and a 2.5 Å resolution neutron structure. The neutron structure depicts a remarkably non-polar active site which lacks suitably positioned hydrogen atoms to support a dissociative mechanism. Site directed mutagenesis of residues which …
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EVOLUTION AND CHARACTERIZATION OF A NEW REVERSIBLY PHOTOSWITCHABLE CHROMOPROTEIN
… properties. Its 2.5 \xc5 joint X-ray and neutron structure shows the location of critical hydrogen atoms, and reveals the position, orientation, and protonation states of solvent molecules in the chromophore and surrounding amino acids, which have not been ascertained to date from current …
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Electron Scattering From a High Momentum Neutron in Deuterium
… nucleus is a system of two nucleons (proton and neutron) bound together. The configuration of the system is described by a quantum-mechanical wave function and the state of the nucleons at a given time is not known a priori. However, by detecting a backward going proton of moderate momentum in …
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Spectator Proton Detection and Reconstruction in Deep Inelastic <i>D(E,EP<sub>S</sub>)</i> Scattering
… as part of the BONuS12 (Barely Off-shell Nucleon Structure) experiment. The goal of BONuS12 is to accurately measure the structure function of the neutron by scattering 11 GeV electrons and detecting them with the CLAS12 spectrometer. Deuterium gas was used as an effective neutron target, and the …
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Simulation and Development of the Radial Time Projection Chamber for the BONuS12 Experiment in CLAS12
<p>Knowledge of the structure of nucleons (i:e: protons and neutrons) is a central topic of interest to nuclear/particle physicists. Much more is known about the structure of the proton than the neutron due to the lack of high-density free neutron targets. The Barely Off-shell Nucleon Structure …