Study of the hadronic production of kaon pairs below the threshold for the phi meson (2008)
Moskal, P., Silarski, M., Budzanowski, A., Czerwinski, E., Czyzykiewicz, R., Gil, D., ...
The near threshold production of K+K- pairs in proton-proton collisions has been investigated at the cooler synchrotron COSY below and above the threshold for the $\phi$ meson using the COSY-11 and...
Near threshold production of the pseudoscalar mesons at the COSY-11 facility (2007)
Moskal, P., Czyzykiewicz, R., Adam, H. H., Budzanowski, A., Czerwinski, E., Gil, D., ...
We summarise measurements of the COSY-11 collaboration concerning the excitation functions of the near threshold pseudoscalar meson production in the proton-proton interaction. The results are...
Dynamics of the near threshold eta meson production in proton-proton interaction (2007)
Czyzykiewicz, R., Moskal, P., Budzanowski, A., Czerwinski, E., Gil, D., ...
We present the results of measurements of the analysing power for the p(pol)p --> pp eta reaction at the excess energies of Q=10 and 36 MeV, and interpret these results within the framework of the...
Improved Measurement of the Positive Muon Lifetime and Determination of the Fermi Constant (2007)
Banks, T. I., Barnes, M. J., Battu, S., Carey, R. M., Cheekatmalla, S., ...
The mean life of the positive muon has been measured to a precision of 11 ppm using a low-energy, pulsed muon beam stopped in a ferromagnetic target, which was surrounded by a scintillator detector...
Andreev, V. A., Banks, T. I., Case, T. A., Chitwood, D. B., Clayton, S. M., Crowe, K. M., ...
The rate of nuclear muon capture by the proton has been measured using a new experimental technique based on a time projection chamber operating in ultra-clean, deuterium-depleted hydrogen gas at 1...
Measurement of the dp -->3He eta reaction near threshold (2007)
Smyrski, J., Budzanowski, A., Czerwinski, E., Czyzykiewicz, R., Gil, D., ...
Total and differential cross sections for the dp --> 3He eta reaction have been measured near threshold for 3He center-of-mass momenta in the range from 17.1 MeV/c to 87.5 MeV/c. The data were taken...
Genetic microheterogeneity of human transthyretin detected by IEF (2007)
Altland, K., Benson, M. D., Costello, C. E., Ferlini, A., Hazenberg, B. R. C., Hund, E., ...
Genetic microheterogeneity of human transthyretin detected by IEF (2007)
Altland, K., Benson, M. D., Costello, C. E., Ferlini, A., Hazenberg, B. R. C., Hund, E., ...
Extending the repertoire of microsatellite markers for genetic linkage mapping and germplasm (2007)
RK Varshney, R Horres, C Molina, S Nayak, R Jungmann, P Swamy, ...
Study of the 3He-eta system in d-p collisions (2006)
Smyrski, J., Budzanowski, A., Czerwinski, E., Czyzykiewicz, R., Gil, D., ...
We have measured excitation functions for the d+p->3He+X, (X=pi0, eta) channels near the eta production threshold. The data were taken during a slow ramping of the COSY internal deuteron beam...
Near threshold eta meson production in dp collisions (2006)
Piskor-Ignatowicz, C., Smyrski, J., Moskal, P., Budzanowski, A., Czerwinski, E., ...
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 accelerator with the...
Mechanism of the close-to-threshold production of the eta meson (2006)
Czyzykiewicz, R., Moskal, P., Budzanowski, A., Czerwinski, E., Gil, D., ...
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, corresponding to...
Eta and eta' mesons production at COSY-11 (2006)
Moskal, P., Budzanowski, A., Czerwinski, E., Czyzykiewicz, R., Gil, D., ...
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 permit to study the...
General thoughts to the Kaon pair production in the threshold region (2006)
Oelert, W., Budzanowski, A., Czerwinski, E., Czyzykiewicz, R., Gil, D., ...
Simple--minded thoughts about the cross sections for the reactions pp-->ppK+K- and pp-->ppK0K0 are presented, which certainly do not account for the complex coupled channel problem but rather provide...
Study of the production mechanism of the eta meson by means of analysing power measurements (2006)
Czyzykiewicz, R., Moskal, P., Budzanowski, A., Czerwinski, E., Gil, D., ...
Information about the production mechanism of the eta meson in proton-proton collisions can be inferred by confronting the experimental studies on the analysing power for the p(pol)p --> pp eta...
Threshold hyperon production in proton-proton collisions at COSY-11 (2006)
Rozek, T., Grzonka, D., Budzanowski, A., Czyzykiewicz, R., Janusz, M., ...
Sigma+ hyperon production was measured at the COSY-11 spectrometer via the p p --> n K+ Sigma+ reaction at excess energies of Q = 13 MeV and Q = 60 MeV. These measurements continue systematic hyperon...
Correlation Femtoscopy for Studying Eta Meson Production Mechanism (2006)
Klaja, P., Moskal, P., Budzanowski, A., Czerwinski, E., Czyzykiewicz, R., ...
The high statistics data from the pp -> ppeta reaction measurement, delivered by the COSY-11 collaboration, are now being evaluated using the correlation femtoscopy technique. This method is based on...
Study of the 3He-eta system in d-p collisions at COSY-11 (2006)
Smyrski, J., Budzanowski, A., Czerwinski, E., Czyzykiewicz, R., Gil, D., ...
We present preliminary results from dp --> 3He X (X=pi0,eta) measurements near the eta production threshold. The data were taken during a slow ramping of the COSY internal deuteron beam scattered on...
The analysing power for the p(pol)p --> pp eta reaction at Q=10 MeV (2006)
Czyzykiewicz, R., Moskal, P., Budzanowski, A., Czerwinski, E., Gil, D., ...
The analyzing power A_y for the p(pol)p --> pp eta reaction has been determined at the beam momentum p_{beam}=2010 MeV/c, corresponding to the excess energy Q=10 MeV. In the paper the method of the...
Kaon pair production close to threshold (2006)
Winter, P., Wolke, M., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., ...
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 enhancement of the...
Heavy Hyperon--Antihyperon Production (2005)
Oelert, W., Grzonka, D., Jarczyk, L., Kilian, K., Moskal, P., Winter, P.
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 heavier...
Moskal, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
The separation of contributions from multi- and single-meson production in the missing mass spectrum of the quasi-free pn --> pnX reaction constitutes a~challenging task when the reaction is studied...
Isospin dependence of the eta' meson production in nucleon--nucleon collisions (2005)
Przerwa, J., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
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. Similarly, though the...
Klaja, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
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-nucleon...
Drift chamber with a c-shaped frame (2005)
Smyrski, J., Kolf, Ch., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., ...
We present the construction of a planar drift chamber with wires stretched between two arms of a c-shaped aluminium frame. The special shape of the frame allows to extendthe momentum acceptance of...
Acacia: the case against moving the type to Australia (2005)
Luckow, M., Colin, H., Chriri, B., Winter, P., Fagg, C., Fortunato, R., ...
Recent studies have shown that Acacia is polyphyletic and must be split into five genera. Proposal 1584 would retypify Acacia : the type of the Australian taxon A. penninervis would be conserved over...
Open strangeness threshold production at COSY-11 (2004)
Winter, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
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 measurements of the...
Hadronic interaction of the eta meson with two nucleons (2004)
Moskal, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
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 kinematical...
New results on the pd --> 3He eta production near threshold (2004)
Khoukaz, A., Lang, N., Lister, T., Santo, R., Steltenkamp, S., ...
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 and differential...
Towards the excitation function of the pp -> ppK+K- reaction at COSY-11 (2004)
Winter, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
The ongoing discussion concerning the nature of the scalar resonances f_0(980) and a_0(980) implicated to extend the studies of the pp -> ppK+K- reaction near the production threshold. Furthermore,...
Threshold Hyperon Production at COSY-11 (2004)
Rozek, T., Moskal, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., ...
The Lambda, Sigma0 and Sigma+ hyperon production in NN collisions is studied at the COSY - 11 installation in order to investigate the production mechanism as well as to extract information about the...
Search for Bremsstrahlung radiation in quasi-free n p --> n p gamma reactions (2004)
Przerwa, J., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
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-nucleon interaction....
Production of Eta Mesons in Proton-Proton Collisions Close to Threshold (2004)
Czyzykiewicz, R., Budzanowski, A., Grzonka, D., Janusz, M., Jarczyk, L., ...
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 unpolarized and polarized...
Polarization observables in the eta meson production (2004)
Winter, P., Czyzykiewicz, R., Budzanowski, A., Grzonka, D., Janusz, M., ...
We propose to extend the investigations of the eta meson production in nucleon-nucleon collisions by studying single and double polarization observables. Over the last years, the eta meson has been...
Kowina, P., Wolke, M., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., ...
The production of the Lambda and Sigma0 hyperons has been measured via the pp->pK+Lambda / Sigma0 reaction at the internal COSY-11 facility in the excess energy range between 14 and 60 MeV. The...
Energy dependence of the Lambda/Sigma0 production cross section ratio in p-p interactions (2004)
Kowina, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
Measurements of the near threshold Lambda and Sigma0 production via the pp-->pK+Lambda/Sigma0 reaction at COSY--11 have shown that the Lambda/Sigma0 cross section ratio exceeds the value at high...
Total and Differential Cross Sections for the pp-->pp eta-prime Reaction Near Threshold (2004)
Khoukaz, A., Geck, I., Quentmeier, C., Budzanowski, A., Czyzykiewicz, R., ...
The eta-prime meson production in the reaction pp-->pp eta-prime has been studied at excess energies of Q = 26.5, 32.5 and 46.6 MeV using the internal beam facility COSY-11 at the cooler synchrotron...
Experimental study of pp eta dynamics in the pp -> pp eta reaction (2004)
Moskal, P., Adam, H. H., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
This version is available at the following Publisher URL: http://prc.aps.org
Analysis of the eta meson production mechanism via the p(pol)p-->ppeta reaction (2003)
Czyzykiewicz, R., Budzanowski, A., Grzonka, D., Janusz, M., Jarczyk, L., ...
Polarisation observables constitute a powerful tool for establishing the production mechanism of the eta meson and for infering the presence of higher partial waves in the final system. Measurements...
Production of eta and eta-prime mesons via the quasi-free proton-neutron interaction (2003)
Moskal, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
A comparison of the close-to-threshold total cross sections for the eta-prime meson production in both the pp --> pp eta-prime and pn --> pn eta-prime reactions should provide insight into the...
Associated strangeness production in pp collisions near threshold (2003)
Winter, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
Motivated by the ongoing discussion concerning the nature of the scalar resonances f0(980) and a0(980), the COSY-11 collaboration has taken exclusive data on the pp->ppK+K- reaction near the...
Analysing power A(y) in the reaction p(pol.)p --> pp eta near threshold (2003)
Winter, P., Adam, H. H., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
A first measurement of the analysing power in the reaction p(pol)p --> pp eta near the production threshold has been performed at the internal facility COSY-11 at the COoler SYnchrotron COSY.
Moskal, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
Utilizing a missing mass technique we investigate the pp --> ppX reaction scanning beam energies in the range permitting to create a mass close to that of the f0(980) and a0(980) scalar resonances,...
Experimental study of pp eta dynamics in the pp --> ppeta reaction (2003)
Moskal, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
A high statistics measurement of the pp --> ppeta reaction at an excess energy of Q = 15.5 MeV has been performed at the internal beam facility COSY-11. The stochastically cooled proton beam and the...
Associated strangeness production at threshold (2003)
Kowina, P., Wolke, M., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., ...
The associated strangeness dissociation at threshold has been studied at the COSY-11 facility measuring the hyperon - and the K+K- meson pair production. Measurements of the near threshold Lambda and...
Strangeness Production in Proton-Proton Collisions Close to Threshold (2003)
Wolke, By M., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
Exclusive data on the reactions pp -> ppK+K- and pp -> pK+ Lambda/Sigma0 have been taken at the cooler synchrotron COSY close to threshold. At equal excess energies, an enhancement of the...
Winter, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
At the internal facility COSY-11 a first measurement of the reaction p(pol)p -> pp eta near the production threshold has been performed. Results for the analysing power will be presented and a...
Kaon Production and Interaction (2003)
Wolke, By M., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Jarczyk, L., ...
Exclusive data on both the elementary kaon and antikaon production channels have been taken at the cooler synchrotron COSY in proton-proton scattering. In the kaon--hyperon production an enhancement...
Hadronic interaction of eta and eta-prime mesons with nucleons (2002)
Moskal, P., Adam, H. H., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
Due to their short life-time, flavour-neutral mesons cannot be utilized as free secondary beams or targets, and therefore a study of their interaction with nucleons is not possible via direct...
Eta physics at threshold (2002)
Moskal, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
The production of eta and eta-prime mesons in elementary nucleon-nucleon collisions has been investigated at the synchrotrons CELSIUS, COSY and SATURNE. The magnitude and energy dependence of the...
Analysing power A_y in the reaction p(pol) p --> p p eta close to threshold (2002)
Winter, P., Bauer, F., Budzanowski, A., Czyzykiewicz, R., Goetz, T., ...
Measurements of the eta meson production with a polarised proton beam in the reaction p(pol) p --> p p eta have been carried out at an excess energy of Q = 40 MeV. The dependence of the analysing...
Experimental study of the eta-meson interaction with two-nucleons (2002)
Moskal, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Janusz, M., ...
By means of the COSY-11 detection system, using a stochastically cooled proton beam of the cooler synchrotron COSY and a hydrogen cluster target, we have performed a high statistics measurement of...
Experimental results on strangeness production in proton-proton collisions at COSY (2002)
Moskal, P., Budzanowski, A., Czyzykiewicz, R., Grzonka, D., Kolf, C., ...
The production of K+ and K- mesons in elementary proton-proton collision has been investigated at the Cooler Synchrotron COSY in Juelich. A high quality proton beam with low emittance and small...
Study of the eta-proton interaction via the reaction p p --> p p eta (2001)
Moskal, P., Adam, H. H., Budzanowski, A., Czyzykiewicz, R., Gotz, T., Grzonka, D., ...
A measurement of the pp --> p p eta reaction at the excess energy of Q = 15.5 +- 0.4 MeV has been carried out at the internal beam facility COSY-11 with an integrated luminosity of 811 nb^-1 The...
On the close to threshold meson production in neutron-neutron collisions (2001)
Moskal, P., Budzanowski, A., Goetz, T., Grzonka, D., Jarczyk, L., ...
A method of measuring the close to threshold meson production in neutron-neutron collisions is described where the momenta of the colliding neutrons can be determined with the accuracy obtainable for...
Advances in Steiner Trees (1999)
D. M. Warme, P. Winter, M. Zachariasen
We present a computational study of exact algorithms for the Euclidean and rectilinear Steiner tree problems in the plane. These algorithms --- which are based on the generation and concatenation of...
Technical Report DIKU-TR-98/11 (1998)
David M. Warme, Pawel Winter, Martin Zachariasen, D. M. Warme, P. Winter, M. Zachariasen
We present a computational study of exact algorithms for the Euclidean and rectilinear Steiner tree problems in the plane. These algorithms --- which are based on the generation and concatenation of...
Jenne, D E, Denzel, K, Blätzinger, P, Winter, P, Obermaier, B, Linke, R P, ...
The most frequent form of inherited amyloidoses is associated with mutations in the transthyretin (TTR) gene coding for 127-amino acid residues of four identical, noncovalently linked subunits that...
A human single-copy DNA probe (DR 47) detects a Taq I RFLP on chromosome 9 (D9S5).
Orzechowski, H D, Hennig, J, Winter, P, Grzeschik, K H, Olek, K, Driesel, A J