10 papers
Baryon-antibaryon photoproduction cross sections off the proton
GlueX Collaboration, F. Afzal, M. Albrecht +137
The GlueX experiment at Jefferson Lab has observed and, for the first time, and photoproduction from a proton target at photon energies up to 11.6 G…
A Helical-Deflector-Based Radio-Frequency Spiral Scanning System for keV Energy Electrons
Simon Zhamkochyan, Vanik Kakoyan, Vardan Bardakhchyan +21
We present the design, modeling, and experimental validation of a radio-frequency based time-to-position conversion system for keV electrons incorporating a helical deflector opera…
Compact sub-10 ps Resolution Radio Frequency Photomultiplier Tube
Sergey Abrahamyan, Simon Zhamkochyan, Hasmik Rostomyan +16
Experimental measurements of the radial spreading of photoelectrons emitted from a multi-alkali photocathode in a MCP-based photomultiplier tube have shown that, for photon wavelen…
Picosecond Precision Heavy-Ion Detector for Î Hypernuclei Lifetime Studies
Simon Zhamkochyan, Sergey Abrahamyan, Amur Margaryan +18
In this paper, we present the design and preliminary performance evaluation of a new heavy-ion detector for direct measurements of heavy Î hypernuclei lifetime. The detector emplo…
Search for the in the photoproduction cross section measurement of at GlueX
GlueX Collaboration
Based on 334 pb of photoproduction data collected with the GlueX detector at Jefferson Lab, we have measured for the first time the cross section of the exclusive reaction $…
Threshold Photoproduction as a Probe of Nuclear Gluon Structure
J. R. Pybus, D. Dutta, H. Gao +83
The nuclear EMC effect is the observation that quark distributions in bound nucleons experience significant modification at large relative to free nucleons. Despite decades of…