244 citations · 1k across the 30 of their papers we have counts for
21 papers · 1 filter
Unperturbed inverse kinematics nucleon knockout measurements with a 48 GeV/c carbon beam
M. Patsyuk, J. Kahlbow, G. Laskaris +166
From superconductors to atomic nuclei, strongly-interacting many-body systems are ubiquitous in nature. Measuring the microscopic structure of such systems is a formidable challeng…
Soft photon registration at Nuclotron
Elena Kokoulina, E. Ardashev, V. Golovkin +30
First results of a soft photon yield in nucleus-nuclear interactions at 3.5 GeV per nucleon are presented. These photons have been registered at Nuclotron (LHEP, JINR) by an electr…
ABC Resonance Structure in the Double-Pionic Fusion to 4He
P. Adlarson, W. Augustyniak, W. Bardan +109
Exclusive and kinematically complete high-statistics measurements of the double pionic fusion reaction He have been performed in the energy range 0.8 - 1.4 GeV c…
Exclusive Measurement of the eta --> pi+ pi- gamma Decay
P. Adlarson, C. Adolph, W. Augustyniak +119
An exclusive measurement of the decay eta --> pi+ pi- gamma has been performed at the WASA facility at COSY. The eta mesons were produced in the fusion reaction pd --> 3He X at a p…
ABC Effect in Basic Double-Pionic Fusion --- Observation of a new resonance?
P. Adlarson, C. Adolph, W. Augustyniak +116
We report on a high-statistics measurement of the basic double pionic fusion reaction over the energy region of the so-called ABC effect, a pronounced low-mass enh…
Exclusive Measurement of the Reaction at 1.1 GeV
M. Bashkanov, D. Bogoslawsky, H. Calen +36
First exclusive data for the reaction have been obtained at CELSIUS with the WASA detector setup at a beam energy of = 1.1 GeV. Total and differential cross…
Delta Delta Excitation in Proton-Proton Induced pi0pi0 Production
T. Skorodko, M. Bashkanov, D. Bogoslawsky +37
Exclusive measurements of the reaction have been performed at CELSIUS/WASA at energies from threshold up to = 1.3 GeV. Total and differential cross sections…
Production of eta and 3pi mesons in the pd->3HeX reaction at 1360 and 1450 MeV
K. Schoenning, Chr. Bargholtz, M. Bashkanov +43
The cross sections of the pd -> 3He eta, pd -> 3He pi0 pi0 pi0 and pd -> 3He pi+ pi- pi0 reactions have been measured at beam kinetic energies T_p= 1360 MeV and T_p= 1450 MeV using…
The pd --> ^3He eta pi0 reaction at T_p = 1450 MeV
K. Schoenning, Chr. Bargholtz, M. Bashkanov +44
The cross section for the pd --> ^3He eta pi0 reaction has been measured at a beam energy of 1450 MeV using the WASA detector at the CELSIUS storage ring and detecting one ^3He and…
Exclusive Measurements of pp -> dpi+pi0: Double-Pionic Fusion without ABC Effect
F. Kren, M. Bashkanov, D. Bogoslawsky +37
Exclusive measurements of the reaction pp -> dpi+pi0 have been carried out at T_p = 1.1 GeV at the CELSIUS storage ring using the WASA detector. The isovector pi+pi0 channel exhibi…
Two-Pion Production in Proton-Proton Collisions -- Experimental Total Cross Sections and their Isospin Decomposition
T. Skorodko, M. Bashkanov, D. Bogoslawsky +37
The two-pion production in pp-collisions has been investigated at CELSIUS in exclusive measurements from threshold up to = 1.36 GeV. Total and differential cross sections hav…
Exclusive measurement of two-pion production in the dd --> 4Hepipi reaction
S. Keleta, Chr. Bargholtz, M. Bashkanov +46
The results from the first kinematically complete measurement of the dd --> 4Hepipi reaction are reported. The aim was to investigate a long standing puzzle regarding the origin of…
Measurement of the eta->3pi0 Dalitz Plot Distribution with the WASA Detector at COSY
COSY Collaboration
In the first production run of the WASA experiment at COSY, the eta decay into three neutral pions was measured in proton-proton interactions at a proton beam kinetic energy of 1.4…
Polarisation of the omega meson in the pd-->3He+omega reaction at 1360 and 1450 MeV
K. Schonning, Chr. Bargholtz, M. Bashkanov +46
The tensor polarisation of omega mesons produced in the pd-->3He+omega reaction has been studied at two energies near threshold. The 3He nuclei were detected in coincidence with th…
Double-Pionic Fusion of Nuclear Systems and the ABCEffect -- Aproaching a Puzzle by Exclusive and Kinematically Complete Measurements
M. Bashkanov, C. Bargholtz, M. Berlowski +46
The ABC effect - a puzzling low-mass enhancement in the invariant mass spectrum - is well-known from inclusive measurements of two-pion production in nuclear fusion reactions.…
The WASA Detector Facility at CELSIUS
Chr. Bargholtz, M. Bashkanov, M. Berłowski +81
The WASA 4pi multidetector system, aimed at investigating light meson production in light ion collisions and eta meson rare decays at the CELSIUS storage ring in Uppsala is present…
Single- and Double-Pion Production in Nucleon Collisions on the Nucleon and on Nuclei -- the ABC Effect and its Possible Origin in a Dibaryonic Resonance
H. Clement, M. Bashkanov, E. Doroshkevich +5
The ABC effect -- an intriguing low-mass enhancement in the invariant mass spectrum -- is known from inclusive measurements of two-pion production in nuclear fusion reactions.…
Two-Pion Production in Nucleon-Nucleon Collisions and the ABC-Effect - Approaching a Puzzleby exclusive and Kinematically complete Measurements
T. Skorodko, M. Bashkanov, C. Bargholtz +50
The ABC effect - a puzzling low-mass enhancement in the invariant mass spectrum - is known from inclusive measurements of two-pion production in nuclear collisions, where it a…
Evidence for a 'Narrow' Roper Resonance - the Breathing Mode of the Nucleon
H. Clement, T. Skorodko, M. Bashkanov +43
All the time since its discovery the N(1440) baryon state, commonly known as Roper resonance, has been a state with many question marks - despite of its 4-star ranking in the p…
The pp -> pp pi pi pi reaction channels in the threshold region
WASA Collaboration, C. Pauly, M. Jacewicz +42
The cross section for prompt neutral and charged three pion production in pp interactions was measured at excess energies in the range 160 - 217 MeV. That comprises the first measu…
Proposal for the Wide Angle Shower Apparatus (WASA) at COSY-Juelich - "WASA at COSY"
COSY Collaboration, B. Hoistad, J. Ritman
This document describes the physics case, the key experiments proposed and the technical solution for the project "WASA at COSY", which concerns the transfer of the WASA pellet-tar…