244 citations · 2.5k across the 107 of their papers we have counts for
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Search for violation in the decay with WASA-at-COSY
P. Adlarson, W. Augustyniak, W. Bardan +90
We report on the investigation of the rare decay which is of interest to study both violation in the electromagnetic interaction and to…
Measurement of the Dalitz plot distribution
P. Adlarson, W. Augustyniak, W. Bardan +107
Dalitz plot distribution of the decay is determined using a data sample of mesons from reaction at 1 GeV collected by the…
Search for a dark photon in the decay
COSY Collaboration, P. Adlarson, W. Augustyniak +113
The presently world largest data sample of pi0 --> gamma e+e- decays containing nearly 5E5 events was collected using the WASA detector at COSY. A search for a dark photon U produc…
Near threshold production of the eta meson via the quasi-free pn --> pn eta reaction
P. Moskal, R. Czyzykiewicz, H. -H. Adam +29
Total cross sections for the quasi-free pn --> pn eta reaction in the range from the kinematical threshold up to 20 MeV excess energy have been determined. At threshold they exceed…
Near threshold eta meson production in dp collisions
C. Piskor-Ignatowicz, J. Smyrski, P. Moskal +23
Preliminary results of recent measurements of the near threshold eta meson production in the dp-->dp eta reaction are presented. The experiment was performed at the COSY-Juelich ac…
Mechanism of the close-to-threshold production of the eta meson
R. Czyzykiewicz, P. Moskal, H. -H. Adam +26
Measurements of the analysing power for the p(pol)p --> ppeta reaction have been performed in the close-to-threshold energy region at beam momenta of p_{beam}=2.010 and 2.085 GeV/c…
Eta and eta' mesons production at COSY-11
P. Moskal, H. -H. Adam, A. Budzanowski +24
The low emittance and small momentum spread of the proton and deuteron beams of the Cooler Synchrotron COSY combined with the high mass resolution of the COSY-11 detection system p…
Kaon pair production close to threshold
P. Winter, M. Wolke, H. -H. Adam +22
The total cross section of the reaction pp->ppK+K- has been measured at excess energies Q=10 MeV and 28 MeV with the magnetic spectrometer COSY-11. The new data show a significant…
Heavy Hyperon--Antihyperon Production
W. Oelert, D. Grzonka, L. Jarczyk +3
Based on the experience from the production of anti-Lambda Lambda and anti-Sigma Sigma pairs at LEAR (experiment PS185) it is suggested to continue the investigations towards the h…
Isospin dependence of the eta' meson production in nucleon--nucleon collisions
J. Przerwa, H. -H. Adam, A. Budzanowski +22
According to the quark model, the masses of eta and eta' mesons should be almost equal. However, the empirical values of these masses differ by more than the factor of two. Similar…
COSY-11: an experimental facility for studying meson production in free and quasi-free nucleon-nucleon collisions
P. Klaja, H. -H. Adam, A. Budzanowski +22
The COSY-11 experimental setup is an internal facility installed at the COoler SYnchrotron COSY in Juelich. It allows to investigate meson production in free and quasi-free nucleon…
Open strangeness threshold production at COSY-11
P. Winter, H. -H. Adam, A. Budzanowski +21
The open strangeness production near threshold is investigated at the internal experiment COSY-11 in different reaction channels. Recently, the main focus has been to extend measur…
Hadronic interaction of the eta meson with two nucleons
P. Moskal, H. -H. Adam, A. Budzanowski +21
The COSY-11 collaboration has conducted experiments aiming at the determination of the excitation function and phase-space population of the p p --> p p eta reaction close to the k…
New results on the pd --> 3He eta production near threshold
H. -H. Adam, A. Khoukaz, N. Lang +22
Measurements on the eta meson production in proton-deuteron collisions have been performed using the COSY-11 facility at COSY Juelich. Here we present preliminary results on total…
Search for Bremsstrahlung radiation in quasi-free n p --> n p gamma reactions
J. Przerwa, H. -H. Adam, A. Budzanowski +22
Due to the high sensitivity of the N N --> N N gamma reaction to the nucleon-nucleon potential, Bremsstrahlung radiation is used as a tool to investigate details of the nucleon-nuc…
Production of Eta Mesons in Proton-Proton Collisions Close to Threshold
R. Czyzykiewicz, H. -H. Adam, A. Budzanowski +22
A brief experimental overview on the close-to-threshold eta meson production in proton-proton interactions is presented and the available observables in measurements with unpolariz…