activity
19982020
most citedObservation of a Broad Structure in the Mass Spectrum around 4.26 GeV/

744 citations · 14.7k across the 280 of their papers we have counts for

collaborators

280 papers

hep-ex2020★ 12 cited

Spin Density Matrix Elements in Exclusive Meson Muoproduction

M. G. Alexeev, G. D. Alexeev, A. Amoroso +197

We report on a measurement of Spin Density Matrix Elements (SDMEs) in hard exclusive meson muoproduction on the proton at COMPASS using 160 GeV/ polarised and $ μ^{…

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…

hep-ph2020★ 36 cited

Triangle Singularity as the Origin of the

G. D. Alexeev, M. G. Alexeev, A. Amoroso +194

The COMPASS experiment recently discovered a new isovector resonance-like signal with axial-vector quantum numbers, the , decaying to . With a mass too close…

hep-ex2019★ 9 cited

Contribution of exclusive diffractive processes to the measured azimuthal asymmetries in SIDIS

J. Agarwala, M. G. Alexeev, G. D. Alexeev +203

Hadron leptoproduction in Semi-Inclusive measurements of Deep-Inelastic Scattering (SIDIS) on unpolarised nucleons allows one to get information on the intrinsic transverse momentu…

nucl-ex2019★ 26 cited

New data on with polarized photons and protons and their implications for decays

J. Müller, J. Hartmann, M. Grüner +86

The polarization observables , and in photoproduction of mesons off protons are measured for photon energies from threshold to MeV (), 2280 MeV ($E…

nucl-ex2019★ 14 cited

Spin polarizabilities of the proton by measurement of Compton double-polarization observables

D. Paudyal, P. P. Martel, G. M. Huber +90

The Compton double-polarization observable has been measured for the first time in the resonance region using a circularly polarized photon beam incident on a lo…