B. G. Ritchie
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View article: Evidence for physics beyond the quasi-deuteron model in pion absorption
Evidence for physics beyond the quasi-deuteron model in pion absorption Open
Cross sections for pion absorption of T{sub {pi}} = 100 MeV on a range of nuclei leading to two or more energetic protons are presented. A large fraction of the total absorption cross section leads to events with large missing energies, pr…
View article: First Measurement of Near-Threshold <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>J</mml:mi><mml:mo stretchy="false">/</mml:mo><mml:mi>ψ</mml:mi></mml:math> Exclusive Photoproduction off the Proton
First Measurement of Near-Threshold Exclusive Photoproduction off the Proton Open
We report on the measurement of the γp→J/ψp cross section from E_{γ}=11.8 GeV down to the threshold at 8.2 GeV using a tagged photon beam with the GlueX experiment. We find that the total cross section falls toward the threshold less steep…
View article: Measurement of the beam asymmetry Σ for π0 and η photoproduction on the proton at Eγ=9 GeV
Measurement of the beam asymmetry Σ for π0 and η photoproduction on the proton at Eγ=9 GeV Open
We report measurements of the photon beam asymmetry Σ for the reactions ⃗γp→pπ0 and ⃗γp→pη from the GlueX experiment using a 9 GeV linearly polarized, tagged photon beam incident on a liquid hydrogen target in Jefferson Lab's Hall D. The asy…
View article: eta photoproduction from the proton using CLAS
eta photoproduction from the proton using CLAS Open
Differential cross sections for the reaction {gamma}p {yields} np have been measured for incident photon energies from 0.75 to 1.95 GeV. Data were taken using the CLAS spectrometer and tagged photon facility at Jefferson Lab. The data prov…
View article: First results from the GlueX experiment
First results from the GlueX experiment Open
© 2016 Author(s). The GlueX experiment at Jefferson Lab ran with its first commissioning beam in late 2014 and the spring of 2015. Data were collected on both plastic and liquid hydrogen targets, and much of the detector has been commissio…