Publications [#246108] of Haiyan Gao

Papers Published

1. al, HGWXQE, Near-threshold Photoproduction of phi Mesons from Deuterium, Phys. Lett. B, vol. 696 no. 4 (2011), pp. 338, Elsevier BV, ISSN 0370-2693 [doi]
   (last updated on 2026/01/14)

   Abstract:
   We report the first, kinematically-complete measurement of the differential cross section of Φ-meson photoproduction from deuterium near the production threshold for a proton using the CLAS detector and a tagged-photon beam in Hall B at Jefferson Lab. The measurement was carried out by a triple coincidence detection of a proton, K+ and K- near the theoretical production threshold of 1.57 GeV. The extracted differential cross sections dσ/dt for the initial photon energy range of 1.65-1.75 GeV are consistent with predictions based on a quasifree mechanism. Our finding is different from recent LEPS results on Φ-meson photoproduction from deuterium in a similar incident photon energy range, but in a different momentum transfer region. © 2011 Elsevier B.V.