activity
20042026
most citedObservation of the Helium 7 Lambda hypernucleus by the (e,e'K+) reaction

79 citations · 283 across the 22 of their papers we have counts for

collaborators

22 papers

physics.ins-det2026

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…

physics.ins-det2026

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…

physics.ins-det2025

Picosecond Precision Heavy-Ion Detector for Λ 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 Λ hypernuclei lifetime. The detector employ…

physics.ins-det2022

Advanced Radio Frequency Timing AppaRATus (ARARAT) Technique and Applications

Ani Aprahamian, Amur Margaryan, Vanik Kakoyan +28

The development of the advanced Radio Frequency Timer of electrons is described. It is based on a helical deflector, which performs circular or elliptical sweeps of keV electrons,…

physics.ins-det2022

An RF Timer of Electrons and Photons with the Potential to reach Picosecond Precision

Amur Margaryan, Vanik Kakoyan, Simon Zhamkochyan +17

This paper describes a new radio frequency timer of keV energy electrons. It is based on a helical deflector, which performs circular or elliptical sweeps of keV electrons, by mean…

nucl-ex2021★ 11 cited

Spectroscopy of hyperlithium by the reaction

T. Gogami, C. Chen, D. Kawama +84

Missing mass spectroscopy with the reaction was performed at Jefferson Laboratory's Hall C for the neutron rich hypernucleus . The ground…