19 papers
First Observation of an Exotic Reggeon
G. D. Alexeev, M. G. Alexeev, C. Alice +180
We present new \compass high-statistics measurements of the peripheral production of and pairs in the reactions . For the…
Addendum to multiplicities of charged pions, kaons and unidentified charged hadrons on an isoscalar target measured by COMPASS Collaboration
The COMPASS Collaboration
The COMPASS Collaboration has recently published an article "Multiplicities of positive and negative pions, kaons, and unidentified hadrons from deep-inelastic scattering of muons…
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…
Response to the He interpretation of MAMI's recent determination of H)
Ryoko Kino, Patrick Achenbach, Pascal Klag +5
We respond to the recent suggestion by A. Gal [arXiv:2604.18259] that the sharp pion-momentum peak at ~MeV/ observed in our $^7\mathrm{Li}(e,e^\prime K^+…
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…
Precise measurement of the -binding energy difference between H and H via decay-pion spectroscopy at MAMI
Ryoko Kino, Sho Nagao, Patrick Achenbach +31
We performed high-precision decay-pion spectroscopy of light hypernuclei at the Mainz Microtron (MAMI) using the A1 spectrometer facility. By measuring the monochromatic $Ï^-…