activity
20162025
most citedTechnical Design Report for the Paul Scherrer Institute Experiment R-12-01.1: Studying the Proton "Radius" Puzzle with μp Elastic Scattering

29 citations · 133 across the 16 of their papers we have counts for

collaborators

16 papers

hep-ex2025

New high-statistics measurement of the Dalitz decay at the Mainz Microtron

S. Prakhov, L. Heijkenskjöld, S. Abt +69

The Dalitz decay has been measured with the highest statistical accuracy obtained so far in the reaction with the A2 tagged-photon facility at the M…

physics.ins-det2024

The MUSE Beamline Calorimeter

W. Lin, T. Rostomyan, R. Gilman +40

The MUon Scattering Experiment (MUSE) was motivated by the proton radius puzzle arising from the discrepancy between muonic hydrogen spectroscopy and electron-proton measurements.…

nucl-ex2024

First measurement using elliptically polarized photons of the double-polarization observable for and

A2 Collaboration, F. Afzal, K. Spieker +74

We report the measurement of the helicity asymmetry for the and final states using, for the first time, an elliptically polarized photon beam in combination with…

nucl-ex2023

Evaluation of the E2/M1 ratio in the transition from the reaction

E. Mornacchi, P. Pedroni, F. Afzal +59

A new data set for the helicity-dependent differential cross section of the single-meson photoproduction reaction was obtained for the photon energy interval 150-4…

nucl-ex2022

Neutron polarisation transfer, , in photoproduction off the proton

M. Bashkanov, D. P. Watts, S. J. D. Kay +63

We report a first measurement of the double-polarisation observable, , in photoproduction off the proton. The double-polarisation observable represents the t…

nucl-ex2022★ 3 cited

First measurement of polarisation transfer in deuteron photodisintegration

M. Bashkanov, D. P. Watts, S. J. D. Kay +66

A first measurement of the polarisation transfer from a circularly-polarised photon to the final state neutron () in deuterium photodisintegration has been carried out. T…

nucl-ex2022★ 1 cited

Measurement of the helicity dependence for single photoproduction from the deuteron

The A2 collaboration, F. Cividini, M. Dieterle +72

The helicity-dependent single photoproduction cross section on the deuteron and the angular dependence of the double polarisation observable for the quasi-free single $…

nucl-ex2021

Measurement of Compton scattering at MAMI for the extraction of the electric and magnetic polarizabilities of the proton

A2 Collaboration, E. Mornacchi, P. P. Martel +65

A precise measurement of the differential cross-sections and the linearly polarized photon beam asymmetry for Compton scattering on the proton below pion threshold ha…

physics.ins-det2021★ 10 cited

Characterization of Muon and Electron Beams in the Paul Scherrer Institute PiM1 Channel for the MUSE Experiment

E. Cline, W. Lin, P. Roy +57

The MUon Scattering Experiment, MUSE, at the Paul Scherrer Institute, Switzerland, investigates the proton charge radius puzzle, lepton universality, and two-photon exchange, via s…

nucl-ex2021★ 2 cited

Single Production Off Neutrons Bound in Deuteron with Linearly Polarized Photons

C. Mullen, S. Gardner, D. I. Glazier +79

The quasifree photon beam asymmetry, , has been measured at photon energies, , from 390 to 610 MeV, corresponding to center of mass energy fr…

nucl-ex2020★ 9 cited

Helicity-dependent cross sections for the photoproduction of pairs from nucleons

M. Dieterle, L. Witthauer, A. Fix +88

The double-polarization observable and helicity-dependent cross sections , have been measured for the photoproduction of pairs off quasi-free protons a…

physics.ins-det2020★ 14 cited

Timing Detectors with SiPM read-out for the MUSE Experiment at PSI

Tigran Rostomyan, Ethan Cline, Ievgen Lavrukhin +40

The Muon Scattering Experiment at the Paul Scherrer Institut uses a mixed beam of electrons, muons, and pions, necessitating precise timing to identify the beam particles and react…

nucl-ex2019★ 20 cited

Signatures of the hexaquark in d(,)

M. Bashkanov, D. P. Watts, S. J. D. Kay +74

We report a measurement of the spin polarisation of the recoiling neutron in deuterium photodisintegration, utilising a new large acceptance polarimeter within the Crystal Ball at…

nucl-ex2019★ 27 cited

Cross Section for measured at Mainz/A2

W. J. Briscoe, M. Hadzimehmedovi, A. E. Kudryavtsev +89

The differential cross section evaluated for 27 energy bins span the photon-energy range 290-813 MeV (W = 1.195-1.553 GeV) and the pion c.m. polar production angles,…

physics.ins-det2017★ 29 cited

Technical Design Report for the Paul Scherrer Institute Experiment R-12-01.1: Studying the Proton "Radius" Puzzle with μp Elastic Scattering

R. Gilman, E. J. Downie, G. Ron +56

The difference in proton radii measured with atoms and with atoms and scattering remains an unexplained puzzle. The PSI MUSE proposal is to measure and scatter…

physics.ins-det2016★ 18 cited

Long-term stability test of a triple GEM detector

R. P. Adak, S. Biswas, S. Das +11

The main aim of the study is to perform the long-term stability test of gain of the single mask triple GEM detector. A simple method is used for this long- term stability test usin…