Publications (35)
Lambda-p femtoscopy in collisions of Ar+KCl at 1.76 AGeV
G. Agakishiev, A. Balanda, R. Bassini +103
Results on p femtoscopy are reported at the lowest energy so far. At a beam energy of 1.76A~GeV, the reaction Ar+KCl was studied with the High Acceptance Di-Electron Spectromet…
Inclusive dielectron production in proton-proton collisions at 2.2 GeV beam energy
G. Agakishiev, H. Alvarez-Pol, A. Balanda +92
Data on inclusive dielectron production are presented for the reaction p+p at 2.2 GeV measured with the High Acceptance DiElectron Spectrometer (HADES). Our results supplement data…
Inclusive dielectron spectra in p+p collisions at 3.5 GeV
G. Agakishiev, A. Balanda, D. Belver +98
We present the inclusive invariant-mass, transverse momentum and rapidity distributions of dielectrons (ee pairs) in p+p interactions at 3.5 GeV beam kinetic energy. In…
Study of dielectron production in C+C collisions at 1 AGeV
HADES Collaboration, G. Agakishiev, C. Agodi +117
The emission of e+e- pairs from C+C collisions at an incident energy of 1 GeV per nucleon has been investigated. The measured production probabilities, spanning from the pi0-Dalitz…
pK+Îfinal state: towards the extraction of the ppK- contribution
L. Fabbietti, G. Agakishiev, A. Balanda +99
The reaction p(@3.5\,GeV)+p -> p+Î+ K^+ can be studied to search for the existence of kaonic bound states like ppK^- leading to this final state. This effort has been motivated by…
First measurement of low momentum dielectrons radiated off cold nuclear matter
G. Agakishiev, A. Balanda, D. Belver +95
We present data on dielectron emission in proton induced reactions on a Nb target at 3.5 GeV kinetic beam energy measured with HADES installed at GSI. The data represent the first…
Cross section in deuteron-proton elastic scattering at 1.25 GeV/u
HADES Collaboration, P. K. Kurilkin, G. Agakishiev +98
First results of the differential cross section in dp elastic scattering at 1.25 GeV/u measured with the HADES over a large angular range are reported. The obtained data correspond…
Inclusive Dielectron Production in Ar+KCl Collisions at 1.76 AGeV studied with HADES
The HADES Collaboration, F. Krizek, G. Agakishiev +110
Results of the HADES measurement of inclusive dielectron production in Ar+KCl collisions at a kinetic beam energy of 1.76 AGeV are presented. For the first time, high mass resoluti…
Inclusive pion and eta production in p+Nb collisions at 3.5 GeV beam energy
G. Agakishiev, A. Balanda, D. Belver +94
Data on inclusive pion and eta production measured with the dielectron spectrometer HADES in the reaction p+93Nb at a kinetic beam energy of 3.5 GeV are presented. Our results, obt…
Baryon resonance production and dielectron decays in proton-proton collisions at 3.5 GeV
G. Agakishiev, A. Balanda, D. Belver +94
We report on baryon resonance production and decay in proton-proton collisions at a kinetic energy of GeV based on data measured with HADES. The exclusive channels $pp \right…
Measurement of charged pions in 12C + 12C collisions at 1A GeV and 2A GeV with HADES
The HADES Collaboration, G. Agakishiev, C. Agodi +123
We present the results of a study of charged pion production in 12C + 12C collisions at incident beam energies of 1A GeV and 2A GeV using the HADES spectrometer at GSI. The main em…
Hyperon production in Ar+KCl collisions at 1.76A GeV
G. Agakishiev, A. Balanda, B. Bannier +111
We present transverse momentum spectra, rapidity distribution and multiplicity of Lambda-hyperons measured with the HADES spectrometer in the reaction Ar(1.76A GeV)+KCl. The yield…
The High-Acceptance Dielectron Spectrometer HADES
The HADES Collaboration, G. Agakishiev, A. Balanda +110
HADES is a versatile magnetic spectrometer aimed at studying dielectron production in pion, proton and heavy-ion induced collisions. Its main features include a ring imaging gas Ch…
Lambda hyperon production and polarization in collisions of p(3.5 GeV) + Nb
G. Agakishiev, O. Arnold, A. Balanda +95
Results on hyperon production are reported for collisions of p(3.5 GeV) + Nb, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18 at GSI Helmholtzzentru…
Acceptance and resolution simulation studies for the dielectron spectrometer HADES at GSI
R. Schicker, A. Brenschede, K. Garrow +15
Design studies for a second generation Dilepton Spectrometer to be built at the SIS accelerator of GSI are presented. The basic design parameters of this system are specified and t…
In-Medium Effects on K0 Mesons in Relativistic Heavy-Ion Collisions
G. Agakishiev, A. Balanda, B. Bannier +108
We present the transverse momentum spectra and rapidity distributions of and K in Ar+KCl reactions at a beam kinetic energy of 1.756 A GeV measured with the spectrom…
Single and double pion production in np collisions at 1.25 GeV with HADES
The HADES Collaboration, A. K. Kurilkin, G. Agakishiev +98
The preliminary results on charged pion production in np collisions at an incident beam energy of 1.25 GeV measured with HADES are presented. The np reactions were isolated in dp c…
Searching a Dark Photon with HADES
HADES Collaboration, G. Agakishiev, A. Balanda +98
We present a search for the e+e- decay of a hypothetical dark photon, also names U vector boson, in inclusive dielectron spectra measured by HADES in the p (3.5 GeV) + p, Nb reacti…
Study of the quasi-free reaction with a deuterium beam at 1.25 GeV/nucleon
G. Agakishiev, A. Balanda, D. Belver +102
The tagged quasi-free reaction has been studied experimentally with the High Acceptance Di-Electron Spectrometer (HADES) at GSI at a deuteron incident beam ener…
Determination of the ratio in p+p collisions at 3.5 GeV
G. Agakishiev, A. Balanda, D. Belver +98
The aim of the present analysis is to determine the relative production cross sections of the (1405) and resonances in p+p collisions at E=3.5 GeV measur…
Subthreshold Xi- Production in Collisions of p(3.5 GeV)+Nb
G. Agakishiev, O. Arnold, A. Balanda +95
Results on the production of the double-strange cascade hyperon are reported for collisions of p\,(3.5~GeV)\,+\,Nb, studied with the High Acceptance Di-Electron Spe…
Deep sub-threshold production in Ar+KCl reactions at 1.76A GeV
G. Agakishiev, A. Balanda, R. Bassini +101
We report first results on a deep sub-threshold production of the doubly strange hyperon in a heavy-ion reaction. At a beam energy of 1.76A GeV the reaction Ar+KCl was studi…
Baryonic resonances close to the Kbar-N threshold: the case of Sigma(1385)^+ in pp collisions
G. Agakishiev, A. Balanda, D. Belver +99
We present results of an exclusive measurement of the first excited state of the Sigma hyperon, Sigma(1385)^+, produced in p+p -> Sigma^+ + K^+ + n at 3.5 GeV beam energy. The extr…
Associate K^0 production in p+p collisions at 3.5 GeV: The role of Delta(1232)++
G. Agakishiev, O. Arnold, A. Balanda +97
An exclusive analysis of the 4-body final states and measured with HADES for p+p collisions at a beam kinet…
Analysis of pion production data measured by HADES in proton-proton collisions at 1.25 GeV
G. Agakishiev, A. Balanda, D. Belver +97
Baryon resonance production in proton-proton collisions at a kinetic beam energy of 1.25 GeV is investigated. The multi-differential data were measured by the HADES collaboration.…
Charged pion production in C+C and Ar+KCl collisions measured with HADES
The HADES Collaboration, P. Tlusty, G. Agakishiev +110
Results of a study of charged pion production in 12C+12C collisions at incident beam energies of 1A GeV and 2A GeV, and 40Ar+natKCl at 1.76AGeV, using the spectrometer HADES at GSI…
Phi decay: a relevant source for K- production at SIS energies?
The HADES Collaboration, G. Agakishiev, A. Balanda +110
We present phase space distributions and multiplicities of K+, K- and phi mesons produced in Ar+KCl reactions at a kinetic beam energy of 1.756 AGeV and measured with the HADES spe…
Future perspectives at SIS-100 with HADES-at-FAIR
The HADES Collaboration, I. Froehlich, G. Agakishiev +110
Currently, the HADES spectrometer undergoes un upgrade program to be prepared for measurements at the upcoming SIS-100 synchrotron at FAIR. We describe the current status of the HA…
Dielectron production in Ar+KCl collisions at 1.76A GeV
G. Agakishiev, A. Balanda, D. Belver +98
We present results on dielectron production in Ar+KCl collisions at 1.76A GeV. For the first time mesons could be reconstructed in a heavy-ion reaction at a bombarding energy…
Production of Sigma{\pm}pi?pK+ in p+p reactions at 3.5 GeV beam energy
G. Agakishiev, A. Balanda, D. Belver +98
We study the production of Sigma^+-pi^+-pK^+ particle quartets in p+p reactions at 3.5 GeV kinetic beam energy. The data were taken with the HADES experiment at GSI. This report ev…
Baryonic resonances close to the Kbar-N threshold: the case of Lambda(1405) in pp collisions
G. Agakishiev, A. Balanda, D. Belver +92
We present an analysis of the Lambda(1405) resonance produced in the reaction p+p->Sigma^{pm}+pi^{mp}+K+p at 3.5 GeV kinetic beam energy measured with HADES at GSI. The two charged…
Origin of the low-mass electron pair excess in light nucleus-nucleus collisions
The HADES Collaboration, G. Agakishiev, A. Balanda +97
We report measurements of electron pair production in elementary p+p and d+p reactions at 1.25 GeV/u with the HADES spectrometer. For the first time, the electron pairs were recons…
Recent results from HADES on electron pair production in relativistic heavy-ion collisions
The HADES Collaboration, T. Galatyuk, G. Agakishiev +97
Systematic investigations of dilepton production are performed at the SIS accelerator of GSI with the HADES spectrometer. The goal of this program is a detailed understanding of di…
Study of exclusive one-pion and one-eta production using hadron and dielectron channels in pp reactions at kinetic beam energies of 1.25 GeV and 2.2 GeV with HADES
HADES Collaboration, G. Agakishiev, H. Alvarez-Pol +93
We present measurements of exclusive Ï^{+,0} and η production in pp reactions at 1.25 GeV and 2.2 GeV beam kinetic energy in hadron and dielectron channels. In the case of Ï^+ a…
Statistical model analysis of hadron yields in proton-nucleus and heavy-ion collisions at SIS 18 energies
G. Agakishiev, O. Arnold, A. Balanda +107
The HADES data from p+Nb collisions at center of mass energy of = 3.2 GeV are analyzed by employing a statistical model. Accounting for the identified hadrons …