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1. The pd→He3ηπ0 reaction at Tp=1450 MeV

Author

Schönning, K., Bargholtz, Chr., Bashkanov, M., Berłowski, M., Bogoslawsky, D., Calén, H., Clement, H., Demirörs, L., Ekström, C., Fransson, K., Gerén, L., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., Kren, F., Kullander, S., Kupść, A., Kuzmin, A., Lindberg, K., Marciniewski, P., Morosov, B., Oelert, W., Pauly, C., Petrén, H., Petukhov, Y., Povtorejko, A., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegnér, P.-E., Thörngren Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G.J., Wilkin, C., Wolke, M., Zabierowski, J., Zartova, I., and Złomańczuk, J.

Subjects
Nuclear and High Energy Physics
Published
2010
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2. Polarisation of the ω meson in the pd→He3ω reaction at 1360 and 1450 MeV

Author

Schönning, K., Bargholtz, Chr., Bashkanov, M., Berłowski, M., Bogoslawsky, D., Calén, H., Clement, H., Demirörs, L., Ekström, C., Fransson, K., Gerén, L., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., Koch, I., Kren, F., Kullander, S., Kupść, A., Kuzmin, A., Lindberg, K., Marciniewski, P., Morosov, B., Oelert, W., Pauly, C., Pettersson, H., Petukhov, Y., Povtorejko, A., Ruber, R.J.M.Y., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegnér, P.-E., Engblom, P. Thörngren, Tikhomirov, V., Turowiecki, A., Wagner, G.J., Wilkin, C., Wolke, M., Zabierowski, J., Zartova, I., and Złomańczuk, J.

Subjects
Nuclear and High Energy Physics
Published
2008
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3. The pp→ppπππ reaction channels in the threshold region

Author

Pauly, C., Jacewicz, M., Koch, I., Bashkanov, M., Bogoslawsky, D., Calén, H., Capellaro, F., Clement, H., Demirörs, L., Ekström, C., Fransson, K., Gustafsson, L., Höistad, B., Ivanov, G., Jiganov, E., Johansson, T., Keleta, S., Kullander, S., Kupść, A., Kuznetsov, A., Marciniewski, P., Meier, R., Morosov, B., Oelert, W., Petukhov, Y., Pettersson, H., Povtorejko, A., Ruber, R.J.M.Y., Schönning, K., Scobel, W., Skorodko, T., Shwartz, B., Sopov, V., Stepaniak, J., Tchernyshev, V., Thörngren Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G.J., Wiedner, U., Wolke, M., Yamamoto, A., Zabierowski, J., and Złomańczuk, J.

Subjects
Nuclear and High Energy Physics
Published
2007
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4. A precision measurement of pp elastic scattering cross-sections at intermediate energies

Author

Albers, D, Bauer, F, Bisplinghoff, J, Bollmann, R, Büsser, K, Busch, M, Daniel, R, Diehl, O, Dohrmann, F, Engelhardt, H P, Ernst, J, Eversheim, P D, Gasthuber, M, Gebel, R, Greiff, J, Gross, A, Gross-Hardt, R, Heider, S, Heine, A, Hinterberger, F, Hueskes, T, Igelbrink, M, Jeske, M, Langkau, R, Lindlein, J, Maier, R, Maschuw, R, Mosel, F, Prasuhn, D, Rohdjess, H, Rosendaal, D, Von Rossen, P, Scheid, N, Schirm, N, Schulz-Rojahn, M, Schwandt, F, Schwarz, V, Scobel, W, Thomas, S, Trelle, H J, Weise, E, Wellinghausen, A, Woller, K, and Ziegler, R

Subjects
Nuclear and High Energy Physics, Partial wave analysis, FOS: Physical sciences, Proton Synchrotron, Juelich COSY PS, Kinetic energy, ddc:530, angular distribution, Nuclear Physics - Experiment, Nuclear Experiment (nucl-ex), Nuclear Experiment, 0.7-3.4 GeV/c, search for [resonance], Excitation function, Physics, Elastic scattering, internal [target], track data analysis, Scattering, partial wave analysis, energy dependence [differential cross section], elastic scattering [p p], experimental results [scintillation counter], Atomic physics, Nucleon, Excitation
Abstract

We have measured differential cross sections for \pp elastic scattering with internal fiber targets in the recirculating beam of the proton synchrotron COSY. Measurements were made continuously during acceleration for projectile kinetic energies between 0.23 and 2.59 GeV in the angular range $30 \leq \theta_{c.m.} \leq 90$ deg. Details of the apparatus and the data analysis are given and the resulting excitation functions and angular distributions presented. The precision of each data point is typically better than 4%, and a relative normalization uncertainty of only 2.5% within an excitation function has been reached. The impact on phase shift analysis as well as upper bounds on possible resonant contributions in lower partial waves are discussed., Comment: 23 pages 29 figures

Published
2004

5. Exclusive Measurement of the $pp \to nn��^+��^+$ Reaction at 1.1 GeV

Author

Bashkanov, M., Bogoslawsky, D., Calen, H., Clement, H., Doroshkevich, E., Demiroers, L., Ekstrom, C., Fransson, K., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Khakimova, O., Keleta, S., Koch, I., Kren, F., Kullander, S., Kupsc, A., Marciniewski, P., Meier, R., Morosov, B., Pauly, C., Petren, H., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Schonning, K., Scobel, W., Shwartz, B., Stepaniak, J., Thorngren-Engblom, P., Tikhomirov, V., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., and Zlomanczuk, J.

Subjects
Nuclear Theory (nucl-th), FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

First exclusive data for the $pp \to nn��^+��^+$ reaction have been obtained at CELSIUS with the WASA detector setup at a beam energy of $T_p$ = 1.1 GeV. Total and differential cross sections disagree with theoretical calculations, which predict the $����$ excitation to be the dominant process at this beam energy. Instead the data require the excitation of a higher-lying $��$ state, most likely the $��(1600)$, to be the leading process.

Published
2010
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6. Production of eta and 3pi mesons in the pd->3HeX reaction at 1360 and 1450 MeV

Author

Schoenning, K., Bargholtz, Chr., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calen, H., Clement, H., Demiroers, L., Ekstroem, C., Fransson, K., Geren, L., Gustafsson, L., Hoeistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., Kren, F., Kullander, S., Kupsc, A., Kuzmin, A., Lindberg, K., Marciniewski, P., Morosov, B., Oelert, W., Pauly, C., Petren, H., Petukhov, Y., Povtorejko, A., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., tegner, P. -E., Engblom, P. Thoerngren, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Zabierowski, J., Zartova, I., and Zlomanczuk, J.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex)
Abstract

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 CELSIUS/WASA detector setup. At both energies, the differential cross section dsigma/dOmega of the eta meson in the pd -> 3He eta reaction shows a strong forward-backward asymmetry in the CMS. The ratio between the pd -> 3He pi+ pi- pi0 and the pd -> 3He pi0 pi0 pi0 cross sections has been analysed in terms of isospin amplitudes. The reconstructed invariant mass distributions of the pi-pi, 3He-pi and 3He-2pi systems provide hints on the role of nucleon resonances in the 3pi production process., Shorter version accepted to EPJA 10 pages 14 figures

Published
2010
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7. Delta Delta Excitation in Proton-Proton Induced pi0pi0 Production

Author

Skorodko, T., Bashkanov, M., Bogoslawsky, D., Calen, H., Clement, H., Doroshkevich, E., Demiroers, L., Ekstroem, C., Fransson, K., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Khakimova, O., Keleta, S., Koch, I., Kren, F., Kullander, S., Kupsc, A., Marciniewski, P., Meier, R., Morosov, B., Pauly, C., Petren, H., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Schoenning, K., Scobel, W., Shwartz, B., Stepaniak, J., Thoerngren-Engblom, P., Tikhomirov, V., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., and Zlomanczuk, J.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

Exclusive measurements of the $pp \to pp\pi^0\pi^0$ reaction have been performed at CELSIUS/WASA at energies from threshold up to $T_p$ = 1.3 GeV. Total and differential cross sections have been obtained. Here we concentrate on energies $T_p \ge$ 1 GeV, where the $\Delta\Delta$ excitation becomes the leading process. No evidence is found for a significant ABC effect beyond that given by the conventional $t$-channel $\Delta\Delta$ excitation. This holds also for the double-pionic fusion to the quasibound $^2$He. The data are compared to model predictions, which are based on both pion and $\rho$ exchange. Total and differential cross sections are at variance with these predictions and call for a profound modification of the $\rho$-exchange. A phenomenological modification allowing only a small $\rho$ exchange contribution leads to a quantitative description of the data.

Published
2010
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8. Production of the omega meson in the pd -> He-3 omega reaction at 1450 MeV and 1360 MeV

Author

Schonning, K., Bargholtz, C., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calen, H., Clement, H., Demirors, L., Ekstrom, C., Fransson, K., Geren, L., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., Khemchandani, Kanchan P., Kren, F., Kullander, S., Kupsc, A., Kuzmin, A., Lindberg, K., Marciniewski, P., Morosov, B., Oelert, W., Pauly, C., Petren, H., Petukhov, Y., Povtorejko, A., Ruber, Rjmy, Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. E., Engblom, P. T., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wilkin, C., Wolke, M., Zabierowski, J., Zartova, I., and Zlomanczuk, J.

Subjects
Nuclear Theory, Nuclear Experiment
Abstract

The production of omega mesons in the pd -> He-3 omega reaction has been studied at two energies near the kinematic threshold, T-p = 1450 MeV and T-p = 1360 MeV. The differential cross section was measured as a function of the omega c.m. angle at both energies over the whole angular range. Whereas the results at 1360 MeV are consistent with isotropy, strong rises are observed near both the forward and backward directions at 1450 MeV. Calculations made using a two-step model with an intermediate pion fail to reproduce the shapes of the measured angular distributions and also underestimate the total cross sections., We wish to thank the personnel at the The Svedberg Laboratory for their support during the course of the experiment. We are grateful to Y. le Bornec for providing us with information regarding Ref. [5] and also V. Shklyar for supplying the t-matrix element of the Giessen model described in Ref. [31]. This work was supported by the European Community under the “Structuring the Research Area” Specific Program Research Infrastructures Action (Hadron Physics, contract no. RII-cT-204-506078) by the Swedish Research Council, and BMBF (06TU201). K.P.K. wishes to thank the Fundacao para a Ciˆencia e a Tecnologia of the Minist´erio da Ciˆencia, Tecnologia e Ensino Superior of Portugal for financial support under Contract No. SFRH/BPD/40309/2007.

Published
2009

9. Exclusive Measurements of pp -> dpi+pi0: Double-Pionic Fusion without ABC Effect

Author

Kren, F., Bashkanov, M., Bogoslawsky, D., Calen, H., Clement, H., Demiroers, L., Ekstrom, C., Fransson, k., Greiff, J., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Kohansson, T., Khakimova, O., Keleta, S., Koch, I., Kullander, S., Kupsc, A., Marciniewski, P., Meier, R., Morosov, B., Pauly, C., Petren, H., Petukhov, Y., Povtoreijko, A., Ruber, R. J. M. Y., Schonning, K., Scobel, W., Skorodko, T., Shwartz, B., Stepaniak, J., Thorngren-Engblom, P., Tikhomirov, V., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., and Zlomanczuk, J.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex)
Abstract

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 exhibits no enhancement at low invariant pipi masses, i. e. no ABC effect. The differential distributions are in agreement with the conventional t-channel Delta-Delta excitation process, which also accounts for the observed energy dependence of the total cross section. This is an update of a previously published version -- see important note at the end of the article.

Published
2009
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10. The pd --> ^3He eta pi0 reaction at T_p = 1450 MeV

Author

Schoenning, K., Bargholtz, Chr., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calen, H., Clement, H., Demiroers, L., Ekstroem, C., Fransson, K., Geren, L., Gustafsson, L., Hoeistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., Kren, F., Kullander, S., Kupsc, A., Kuzmin, A., Lindberg, K., Marciniewski, P., Morosov, B., Oelert, W., Pauly, C., Petren, H., Petukhov, Y., Povtorejko, A., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. -E., Thoerngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wilkin, C., Wolke, M., Zabierowski, J., Zartova, I., and Zlomanczuk, Jozef

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

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 four photons from the decays of the two photons. The data indicate that the production mechanism involves the formation of the Delta(1232) isobar. Although the beam energy does not allow the full peak of this resonance to be seen, the invariant masses of all three pairs of final state particles are well reproduced by a phase space Monte Carlo simulation weighted with the p-wave factor of the square of the pi^0 momentum in the ^3Hepi^0 system., 10 pages, 5 figures

Published
2009
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11. Exclusive measurement of two-pion production in the dd --> 4Hepipi reaction

Author

Keleta, S., Bargholtz, Chr., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calen, H., Clement, H., Demirors, L., Ekstrom, C., Fransson, K., Geren, L., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Khakimova, O., Kren, F., Kullander, S., Kupsc, A., Kuzmin, A., Lindberg, K., Marciniewski, P., Morosov, B., Oelert, W., Pauly, C., Petren, H., Petukhov, Y., Povtorejko, A., Pricking, A., Ruber, R. J. M. Y., Schonning, K., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. -E., Engblom, P. Thorngren, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wilkin, C., Wolke, M., Zabierowski, J., Zartova, I., and Zlomanczuk, J.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

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 the peculiar pipi-invariant mass distributions appearing in double pion production in light ion collisions, the so-called ABC effect. The measurements were performed at the incident deuteron energies of 712 MeV and 1029 MeV, with the WASA detector assembly at CELSIUS in Uppsala, Sweden. We report the observation of a characteristic enhancement at low pipi-invariant mass at 712 MeV, the lowest energy yet. At the higher energy, in addition to confirming previous experimental observations, our results reveal a strong angular dependence of the pions in the overall centre of mass system. The results are qualitatively reproduced by a theoretical model, according to which the ABC effect is described as resulting from a kinematical enhancement in the production of the pion pairs from two parallel and independent NN--> dpi sub-processes., 20 pages including 18 figures

Published
2009
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12. Production of the omega meson in the pd --> 3He omega reaction at 1450 MeV and 1360 MeV

Author

Schonning, K., Bargholtz, Chr., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calen, H., Clement, H., Demirors, L., Ekstrom, C., Fransson, K., Geren, L., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., Khemchandani, K. P., Kren, F., Kullander, S., Kupsc, A., Kuzmin, A., Lindberg, K., Marciniewski, P., Morosov, B., Oelert, W., Pauly, C., Petren, H., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. -E., Engblom, P. Thorngren, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wilkin, C., Wolke, M., Zabierowski, J., Zartova, I., and Zlomanczuk, J.

Subjects
Nuclear Theory, FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

The production of $��$ mesons in the $pd \to{}^3$He$ ��$ reaction has been studied at two energies near the kinematic threshold, $T_p=1450$ MeV and $T_p=1360$ MeV. The differential cross section was measured as a function of the $��$ cm angle at both energies over the whole angular range. Whereas the results at 1360 MeV are consistent with isotropy, strong rises are observed near both the forward and backward directions at 1450 MeV. Calculations made using a two-step model with an intermediate pion fail to reproduce the shapes of the measured angular distributions and also underestimate the total cross sections., 10 pages, 13 figures

Published
2009
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13. Polarisation of the omega meson in the pd-->3He+omega reaction at 1360 and 1450 MeV

Author

Schonning, K., Bargholtz, Chr., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calen, H., Clement, H., Demirors, L., Ekstrom, C., Fransson, K., Geren, L., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., Koch, I., Kren, F., Kullander, S., Kupsc, A., Kuzmin, A., Lindberg, K., Marciniewski, P., Morosov, B., Oelert, W., Pauly, C., Pettersson, H., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. -E., Engblom, P. Thorngren, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wilkin, C., Wolke, M., Zabierowski, J., Zartova, I., and Zlomanczuk, J.

Subjects
High Energy Physics::Phenomenology, Nuclear Theory, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

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 the pi0pi+pi- or pi0gamma decay products of the omega. In contrast to the case of phi meson production, the omega mesons are found to be unpolarised. This brings into question the applicability of the Okubo-Zweig-Iizuka rule when comparing the production of vector mesons in low energy hadronic reactions., 11 pages, 4 figures

Published
2008
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14. Measurement of the Slope Parameter for the eta->3pi0 Decay in the pp->pp eta Reaction

Author

Bashkanov, M., Bogoslawsky, D., Cal��n, H., Capellaro, F., Clement, H., Demir��rs, L., Ekstr��m, C., Fransson, K., Gustafsson, L., H��istad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Koch, I., Kullander, S., Kupsc, A., Kuznetsov, A., Marciniewski, P., Meier, R., Morosov, B., Oelert, W., Pauly, C., Petukhov, Y., Pettersson, H., Povtorejko, A., Ruber, R. J. M. Y., Sch��nning, K., Scobel, W., Skorodko, T., Shwartz, B., Sopov, V., Stepaniak, J., Tchernyshev, V., Engblom, P. Th��rngren, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wiedner, U., Wolke, M., Yamamoto, A., Zabierowski, J., and Z��oma��czuk, J.

Subjects
FOS: Physical sciences, High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

The CELSIUS/WASA setup is used to measure the 3pi0 decay of eta mesons produced in pp interactions with beam kinetic energies of 1.36 and 1.45 GeV. The efficiency-corrected Dalitz plot and density distributions for this decay are shown, together with a fit of the quadratic slope parameter alpha yielding alpha = -0.026 +/- 0.010(stat) +/- 0.010(syst). This value is compared to recent experimental results and theoretical predictions., 4 pages, 7 Postscript figures, uses revtex4.sty

Published
2007
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15. Measurement of eta meson decays into lepton-antilepton pairs

Author

WASA Collaboration, Ber��owski, M., Bargholtz, Chr., Bashkanov, M., Bogoslawsky, D., Bondar, A., Cal��n, H., Cappellaro, F., Clement, H., Demir��rs, L., Ekstr��m, C., Fransson, K., Ger��n, L., Gustafsson, L., H��istad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Koch, I., Kullander, S., Kup����, A., Kuzmin, A., Kuznetsov, A., Laukhin, I. V., Lindberg, K., Marciniewski, P., Meier, R., Morosov, B., Oelert, W., Pauly, C., Pettersson, H., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Sch��nning, K., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegn��r, P. -E., Engblom, P. Th��rngren, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., Zartova, I., and Z��oma��czuk, J.

Subjects
Nuclear and High Energy Physics, Particle physics, Meson, Nuclear Theory, decay modes [eta], Dalitz plot, FOS: Physical sciences, Electron, Particle identification, exclusive reaction [p deuteron], High Energy Physics - Experiment, Nuclear physics, Particle decay, High Energy Physics - Experiment (hep-ex), pair production [lepton], +helium-3+eta%22">p deuteron --> helium-3 eta, +2lepton%2B+2lepton%22">eta --> 2lepton+ 2lepton, ddc:530, +2positron+2electron%22">eta --> 2positron 2electron, semileptonic decay [eta], Nuclear Experiment, 0.893 GeV, +pi%2B+pi-+muon%2B+muon%22">eta --> pi+ pi- muon+ muon, branching ratio [eta], Physics, hadroproduction [eta], experimental results [magnetic spectrometer], leptonic decay [eta], Branching fraction, High Energy Physics::Phenomenology, Eta meson, +positron+electron%22">eta --> positron electron, Uppsala CELSIUS Stor, +2muon%2B+2muon%22">eta --> 2muon+ 2muon, High Energy Physics::Experiment, +positron+electron+photon%22">eta --> positron electron photon, upper limit, Lepton, experimental results
Abstract

A search for rare lepton decays of the eta meson was performed using the WASA detector at CELSIUS. Two candidates for double Dalitz decay eta->e+e-e+e- events are reported with a background of 1.3+/-0.2 events. This allows to set an upper limit to the branching ratio of 9.7E-5 (90% CL). The branching ratio for the decay eta->e+e-gamma is determined to (7.8+/-0.5 stat+/-0.8 syst)E-3. An upper limit (90% CL) for the branching ratio for the eta->e+e- decay is 2.7E-5 and a limit for the sum of the eta->mu+mu-mu+mu- and eta->pi+pi-mu+mu- decays is 3.6E-4., 9 pages, 10 Postscript figures, uses revtex4.sty, revised version after referee comments; conclusions unchanged

Published
2007
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16. Anisotropy in the pion angular distribution of the reaction pp -> pp pi0 at 400 MeV

Author

Engblom, P. Thorngren, Keleta, S. Negasi, Cappellaro, F., Hoistad, B., Jacewicz, M., Johansson, T., Koch, I., Kullander, S., Pettersson, H., Schonning, K., Zlomanczuk, J., Calen, H., Fransson, K., Kupsc, A., Marciniewski, P., Wolke, M., Pauly, C., Demirors, L., Scobel, W., Stepaniak, J., Zabierowski, J., Bashkanov, M., Clement, H., Khakimova, O., Kren, F., and Skorodko, T.

Subjects
FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

The reaction pp -> pp pi0 was studied with the WASA detector at the CELSIUS storage ring. The center of mass angular distribution of the pi0 was obtained by detection of the gamma decay products together with the two outgoing protons, and found to be anisotropic with a negative second derivative slope, in agreement with the theoretical predictions from a microscopic calculation., Revtex 4 style, 5 pages 7 figures, PACS numbers:13.60.Le, 13.75.Cs, 21.45.+v, 25.10.+s

Published
2006
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17. Measurement of the eta->pi+pi-e+e- decay branching ratio

Author

WASA Collaboration, Bargholtz, Chr., Bashkanov, M., Bogoslawsky, D., Cal��n, H., Capellaro, F., Clement, H., Demir��rs, L., Ekstr��m, C., Fransson, K., Ger��n, L., Gustafsson, L., H��istad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Koch, I., Kullander, S., Kupsc, A., Kuznetsov, A., Laukhin, I. V., Lindberg, K., Marciniewski, P., Meier, R., Morosov, B., Oelert, W., Pauly, C., Pettersson, H., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Sch��nning, K., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tchernyshev, V., Tegn��r, P. -E., Engblom, P. Th��rngren, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., Zartova, I., and Z��oma��czuk, J.

Subjects
High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment, Astrophysics::Galaxy Astrophysics
Abstract

The reaction pd->3He eta at threshold was used to provide a clean source of eta mesons for decay studies with the WASA detector at CELSIUS. The branching ratio of the decay eta->pi+pi-e+e- is measured to be (4.3+/-1.3+/-0.4)x10^-4., 10 pages,6 figures revised version

Published
2006
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18. The pp -> pp pi pi pi reaction channels in the threshold region

Author

WASA Collaboration, Pauly, C., Jacewicz, M., Koch, I., Bashkanov, M., Bogoslawsky, D., Cal��n, H., Capellaro, F., Clement, H., Demir��rs, L., Ekstr��m, C., Fransson, K., Gustafsson, L., H��istad, B., Ivanov, G., Jiganov, E., Johansson, T., Keleta, S., Kullander, S., Kup����, A., Kuznetsov, A., Marciniewski, P., Meier, R., Morosov, B., Oelert, W., Pettersson, H., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Scobel, W., Sch��nning, K., Skorodko, T., Shwartz, B., Sopov, V., Stepaniak, J., Tchernyshev, V., Engblom, P. Th��rngren, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wiedner, U., Wolke, M., Yamamoto, A., Zabierowski, J., and Z��oma��czuk, J.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex)
Abstract

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 measurement of the pp->pp pi0pi0pi0 reaction and the comparison with the pp->pp pi+pi-pi0 reaction, in a very direct way. The experiment was performed above the eta meson production threshold and the cross section normalization was obtained from a concurrent measurement of the reaction pp->pp eta with the eta decaying into 3 pions. Since the same final states are selected, the measurement has a low systematical error. The measured cross section ratio sigma(pp->pp pi+pi-pi0)/sigma(pp->pp pi0\pi0\pi0) is compared to predictions of dominance of different isobars in the intermediate state., 12 pages, 4 figures New discussion on the pp->pp3pi reaction mechanism

Published
2006
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19. Evidence for a 'Narrow' Roper Resonance - the Breathing Mode of the Nucleon

Author

Clement, H., Skorodko, T., Bashkanov, M., Bogoslawsky, D., Calen, H., Cappellaro, F., Demiroers, L., Doroshkevich, E., Ekstrom, C., Fransson, K., Hoistad, L. Gustafsson. B., Ivanov, G., Jacewicz, l M., Jiganov, E., Johansson, T., Kaskulov, M., Khakimova, O., Keleta, S., Koch, I., Kren, F., Kullander, S., Kupsc, A., Kuznetsov, A., Marciniewski, P., Martemyanov, B., Meier, R., Morosov, B., Oelert, W., Pauly, C., Pettersson, H., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Schonning, K., Scobel, W., Shwartz, B., Sopov, V., Stepaniak, J., Thorngren-Engholm, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., and Zlomanczuk, J.

Subjects
Nuclear Theory, FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

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 particle data book. One reason is that it does not produce any explicit resonance-like structures in the observables of $\pi$N or $\gamma$N reactions. Only in partial wave analyses of $\pi$N scattering data a clear resonance strcuture gets obvious in the $P_{11}$ partial wave. Very recent measurements of the J/$\Psi$ decay by the BES collaboration and of the $pp \to np\pi^+$ reaction at 1.3 GeV by the CELSIUS-WASA collaboration show for the first time a clear resonance structure in the invariant $n\pi^+$ mass spectrum for the Roper resonance at M $\approx$ 1360 MeV with a width of about 150 MeV. These values agree very favorably with the pole position results of recent $\pi$N phase shift analyses. In consequence of this very low-lying pole postion, which is roughly 100 MeV below the nominal value, the decay properties have to be reinvestigated. From our two-pion production data we see that the decay mainly proceeds via N$^* \to $N$\sigma$, i.e. a monopole transition as expected for the breathing mode of the nucleon., Comment: CRIMEA06

Published
2006
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20. Exclusive Measurements of $pd\to ^3He ����$ : the $ABC$ Effect Revisited

Author

Bashkanov, M., Bogoslawsky, D., Cal��n, H., Cappellaro, F., Clement, H., Demiroers, L., Ekstr��m, C., Fransson, K., Greiff, J., Gustafsson, L., H��istad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Kaskulov, M. M., Keleta, S., Koch, I., Kullander, S., Kup����, A., Kuznetsov, A., Marciniewski, P., Meier, R., Morosov, B., Oelert, W., Pauly, C., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Scobel, W., Skorodko, T., Shwartz, B., Sopov, V., Stepaniak, J., Tchernyshev, V., Th��rngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., and Zlomanczuk, J.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex)
Abstract

Exclusive measurements of the reactions $pd\to$ $^3He ��^+ ��^-$ and $pd\to$ $^3He ��^0��^0$ have been carried out at $T_p=0.895$ GeV at the CELSIUS storage ring using the WASA detector. The $��^+��^-$ channel evidences a pronounced enhancement at low invariant $����$ masses - as anticipated from previous inclusive measurements of the ABC effect. This enhancement is seen to be even much larger in the isoscalar $��^0��^0$ channel. The differential distributions prove this enhancement to be of scalar-isoscalar nature. $����$ calculations give a good description of the data, if a boundstate condition is imposed for the intermediate $����$ system., extended version, 8 pages, 7 figures, theoretical model calculations added

Published
2005
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21. Study of the p p -> p p pi+ pi- Reaction in the Low-Energy Tail of the Roper Resonance

Author

Paetzold, J., Bashkanov, M., Bilger, R., Brodowski, W., Calen, H., Clement, H., Ekstrom, C., Fransson, K., Greiff, J., Haggstrom, S., Hoistad, B., Johanson, J., Johansson, A., Johansson, T., Kilian, K., Kullander, S., Kupsc, A., Marciniewski, P., Morosov, B., Oelert, W., Ruber, R. J. M. Y., Schepkin, M., Scobel, W., Stepaniak, J., Sukhanov, A., Turowiecki, A., Wagner, G. J., Wilhelmi, Z., Zabierowski, J., and Zlomanczuk, J.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex)
Abstract

Exclusive measurements of the p p -> p p pi+ pi- reaction have been carried out at Tp = 775 MeV at CELSIUS using the PROMICE/WASA setup. Together with data obtained at lower energy they point to a dominance of the Roper excitation in this process. From the observed interference of its decay routes N* -> N sigma and N* -> Delta pi -> N sigma their energy-dependent relative branching ratio is determined.

Published
2003
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22. Measurement of Spin Correlation Parameters A$_{NN}$, A$_{SS}$, and A_${SL}$ at 2.1 GeV in Proton-Proton Elastic Scattering

Author

Bauer, F., Bisplinghoff, J., Büßer, K., Busch, M., Colberg, T., Demirörs, L., Dahl, C., Eversheim, P. D., Eyser, O., Felden, O., Gebel, R., Greiff, J., Groß-Hardt, R., Hinterberger, F., Jahn, R., Jonas, E., Krause, H., Lehmann, C., Lindlein, J., Maier, R., Meinerzhagen, A., Pauly, C., Prasuhn, D., Rohdjeß, H., Rosendaal, D., von Rossen, P., Schirm, N., Scobel, W., Ulbrich, K., Weise, E., Wolf, T., and Ziegler, R.

Subjects
Physics::Accelerator Physics, FOS: Physical sciences, Nuclear Experiment (nucl-ex), Nuclear Experiment
Abstract

At the Cooler Synchrotron COSY/J\"ulich spin correlation parameters in elastic proton-proton (pp) scattering have been measured with a 2.11 GeV polarized proton beam and a polarized hydrogen atomic beam target. We report results for A$_{NN}$, A$_{SS}$, and A_${SL}$ for c.m. scattering angles between 30$^o$ and 90$^o$. Our data on A$_{SS}$ -- the first measurement of this observable above 800 MeV -- clearly disagrees with predictions of available of pp scattering phase shift solutions while A$_{NN}$ and A_${SL}$ are reproduced reasonably well. We show that in the direct reconstruction of the scattering amplitudes from the body of available pp elastic scattering data at 2.1 GeV the number of possible solutions is considerably reduced., Comment: 4 pages, 4 figures

Published
2002
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23. Search for Narrow NNpi Resonances in Exclusive p p -> p p pi+ pi- Measurements

Author

Brodowski, W., Paetzold, J., Bilger, R., Calen, H., Clement, H., Ektrom, C., Fransson, K., Greiff, J., Haggstrom, S., Hoistad, B., Johanson, J., Johansson, A., Johannsson, T., Kilian, K., Kullander, S., Kupsc, A., Marciniewski, P., Morosov, B., Oelert, W., Ruber, R. J. M. Y., Schepkin, M., Scobel, W., Stepaniak, J., Sukhanov, A., Turowiecki, A., Wagner, G. J., Wilhelmi, Z., Zabierowski, J., and Zlomanczuk, J.

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex)
Abstract

Narrow structures in the range of a few MeV have been searched for in p p pi+ and p p pi- invariant mass spectra obtained from exclusive measurements of the p p -> p p pi+ pi- reaction at Tp = 725, 750 and 775 MeV using the PROMICE/WASA detector at CELSIUS. The selected reaction is particularily well suited for the search for NN and / or N Delta decoupled dibaryon resonances. Except for a possible fluctuation at 2087 MeV/c^2 in Mpppi- no narrow structures could be identified neither in Mpppi+ nor in Mpppi- on the 3 sigma level of statistical significance, giving an upper limit (95% C.L.) for dibaryon production in this reaction of sigma < 20 nb for 2020 MeV/c^2 < m(dibaryon) < 2085 MeV/c^2, 3 pages, 4 figures

Published
2002
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24. Report on the charged decay products identification possibilities in WASA

Author

Jacewicz, M., Bargholtz, C., Bogoslawsky, D., Bondar, A., Calén, H., Cappellaro, F., Clement, H., Comfort, J., Demirörs, L., Dorochkevitch, E., Ekström, C., Fransson, K., Fridén, C. J., Chernyshev, B., Gerén, L., Gornov, M., Grebenev, V., Greiff, J., Gurov, Y., Gustafsson, L., Höistad, B., Ivanov, G., Jiganov, E., Johansson, A., Johansson, T., Keleta, S., Kilian, K., Kimura, N., Koch, I., Kullander, S., Kupść, A., Kurdadze, L., Kuzmin, A., Kuznetsov, A., Lindberg, K., Marciniewski, P., Martemyanov, B., Meier, R., Morosov, B., Nawrot, A., Nefkens, B. M. K., Oelert, W., Oreshkin, S., Pauly, C., Pawlowski, Z., Petukhov, Y., Povtorejko, A., Pätzold, J., Reistad, D., Ruber, R. J. M. Y., Sandukovsky, V., Scobel, W., Sefzick, T., Shafigullin, R., Sepkin, M., Sidorov, V., Shwartz, B., Skorodko, T., Sopov, V., Starostin, A., Stepaniak, J., Sukhanov, A., Tchernychev, V., Tegnér, P. -E, Thörngren Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G., Wiedner, U., Wilhelmsen, K., Wilhelmi, Z., Yamamoto, A., Yamaoka, H., Janusz Zabierowski, and Zlomańczuk, J.

25. Two-pion production in proton-proton collisions

Author

Mikhail Bashkanov, Abdel-Samad, S., Brinkmann, Kt, Calen, H., Cappellaro, F., Clement, H., Demiroers, L., Doroshkevich, E., Dshemuchadse, S., Ekstrom, C., Erhardt, A., Eyrich, W., Fransson, K., Freiesleben, H., Fritsch, M., Gillitzer, A., Gustafsson, L., Hoistad, B., Jacewicz, M., Johansson, T., Karsch, L., Keleta, S., Kilian, K., Koch, I., Kress, J., Kuhlmann, E., Kullander, S., Kupsc, A., Marcello, S., Marciniewski, P., Meier, R., Moller, K., Morosov, B., Morsch, Hp, Pauly, C., Petukhov, Y., Roderburg, E., Schonmeier, P., Schroder, W., Schulte-Wissermann, M., Scobel, W., Sefzick, T., Skorodko, T., Stepaniak, J., Wagner, Gj, Wagner, M., Wiedner, U., Winuz, P., Wustner, P., Zabierowski, J., Zlomanczuk, J., Zupranski, P., CELSIUS-WASA, and Cosy-Tof, Coll

26. Pion production in dp → dN π reactions with deuteron projectiles

Author

Greiff, J., Koch, I., Scobel, W., Rohdjeß, H., Dyring, J., Fransson, K., Gustafsson, L., Häggström, S., Höistad, B., Johanson, J., Johansson, A., Johansson, T., Khoukaz, A., Kullander, S., Ruber, R. J. M. Y., Złomańczuk, J., Dunin, V., Morosov, B., Sukhanov, A., Zernov, A., Kupść, A., Marciniewski, P., Stepaniak, J., Bilger, R., Brodowski, W., Clement, H., Wagner, G. J., Calén, H., Ekström, C., Janusz Zabierowski, Shwartz, B., Oelert, W., Sefzick, T., and Turowiecki, A.

27. The CELSIUS/WASA 4π detector facility

Author

Bargholtz, C., Bilger, R., Blom, M., Bogoslawsky, D., Alexander Bondar, Brodowski, W., Calen, H., Clement, H., Demirörs, L., Dunin, V., Ekström, C., Fransson, K., Friden, C. -J, Greiff, J., Gustafsson, L., Höistad, B., Jacewicz, M., Johanson, J., Johansson, A., Johansson, T., Khoukaz, A., Kilian, K., Kimura, N., Koch, I., Kolachev, G., Komogorov, M., Kullander, S., Kupść, A., Kurdadze, L., Kuzmin, A., Kuznetsov, A., Lundström, B., Marciniewski, P., Martemyanov, B., Morosov, B., Nawrot, A., Nefkens, B. M. K., Norman, G., Oelert, W., Oreshkin, S., Petukhov, Y., Pomp, S., Povtorejko, A., Przestrzelska, K., Pätzold, J., Reistad, D., Ruber, R. J. M. Y., Sandukovsky, V., Scobel, W., Sefzick, T., Sewerin, S., Sidorov, V., Shwartz, B., Sopov, V., Stepaniak, J., Sukhanov, A., Sundberg, P., Tchernychev, V., Tegner, P. -E, Engblom, P. T., Tikhomirov, V., Turowiecki, A., Wagner, G., Wiedner, U., Wilhelmi, Z., Yamamoto, A., Yamaoka, H., Zabierowski, J., Zernov, A., and Zlomańczuk, J.

28. ππ Production in proton-proton collisions

Author

Skorodko, T., Bashkanov, M., Bogoslowsky, D., Calén, H., Cappellaro, F., Clement, H., Demiroers, L., Ekström, C., Fransson, K., Greiff, J., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Kaskulov, M. M., Keleta, S., Khakimova, O., Koch, I., Kren, F., Kullander, S., Kupść, A., Kuznetsov, A., Marciniewski, P., Meier, R., Morosov, B., Oelert, W., Pauly, C., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Schwick, A., Scobel, W., Shafigullin, R., Shwartz, B., Sopov, V., Stepaniak, J., Tchernyshev, V., Thörngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Janusz Zabierowski, and Złomanćzuk, J.

29. Low-mass ππ enhancement in baryonic ππ production: ABC effect revised by exclusive measurements

Author

Bashkanov, M., Khakimova, O., Skorodko, T., Bargholtz, C., Bogoslowsky, D., Calén, H., Cappellaro, F., Clement, H., Ekström, C., Fransson, K., Geren, L., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Kaskulov, M. M., Keleta, S., Koch, I., Kren, F., Kullander, S., Kupść, A., Kuznetsov, A., Lindberg, K., Marciniewski, P., Meier, R., Morosov, B., Oelert, W., Pauly, C., Petukhov, Y., Povtoreyko, A., Ruber, R. J. M. Y., Schwick, A., Scobel, W., Shafigullin, R., Shwartz, B., Sopov, V., Joanna Stepaniak, Tegner, P. -E, Tchernyshev, V., Thörngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., Zartova, I., and Złomanćzuk, J.

30. First results of the CELSIUS/WASA experiment

Author

Koch, I., Bargholtz, C., Bogoslawsky, D., Bondar, A., Calén, H., Cappellaro, F., Clement, H., Comfort, J., Demirörs, L., Dorochkevitch, E., Ekström, C., Fransson, K., Fridén, C. J., Chernyshev, B., Gerén, L., Gornov, M., Grebenev, V., Greiff, J., Gurov, Y., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, A., Tord Johansson, Keleta, S., Kilian, K., Kimura, N., Kullander, S., Kupść, A., Kurdadze, L., Kuzmin, A., Kuznetsov, A., Lindberg, K., Marciniewski, P., Martemyanov, B., Meier, R., Morosov, B., Nawrot, A., Nefkens, B. M. K., Oelert, W., Oreshkin, S., Pauly, C., Pawlowski, Z., Petukhov, Y., Povtorejko, A., Pätzold, J., Reistad, D., Ruber, R. J. M. Y., Sandukovsky, V., Scobel, W., Sefzick, T., Shafigullin, R., Shepkin, M., Sidorov, V., Shwartz, B., Skorodko, T., Sopov, V., Starostin, A., Stepaniak, J., Sukhanov, A., Tchernychev, V., Tegner, P. -E, Thörngren Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G., Wiedner, U., Wilhelmsen, K., Wilhelmi, Z., Yamamoto, A., Yamaoka, H., Zabierowski, J., and Zlomańczuk, J.

31. eta PRODUCTION IN PROTON-PROTON COLLISIONS AT 72 MeV EXCESS ENERGY

Author

Pettersson, H., Mikhail Bashkanov, Bogoslowsky, D., Calen, H., Clement, H., Ekstrom, C., Fransson, K., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., Koch, I., Kren, F., Kullander, S., Kupsc, A., Kuznetsov, A., Marciniewski, P., Meier, R., Morosov, B., Pauly, C., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Schonning, K., Scobel, W., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Thorngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., and Zlomanczuk, J.

32. The physics research program at COSY-Juelich

Author

Schult, O. W. B., Balewski, J., Barsov, S., Bechstedt, U., Bellemann, F., Belostotsky, S., Berg, A., Beuscher, H., Bilger, R., Bisplinghoff, J., Bohm, A., Bohlscheid, G., Bollmann, R., Borgs, W., Bothe, W., Bowes, S., Brautigam, W., Brand, H., Brand, S., Brauksiepe, S., Brinkmann, K. T., Budzanowski, A., Buescher, Markus, Cassing, W., Chernyshev, V., Clement, H., Cloth, P., Czarnecki, T., Dahmen, M., Dellert, M., Demski, T., Dennert, H., Diart, K. H., Diehl, O., Dienel, S., Dietrich, J., Dohrmann, F., Dombrowski, H., Drochner, M., Drueke, V., Dutz, H., Eisenhardt, S., Engelhardt, H. P., Ernst, J., Esser, R., Eversheim, P. D., Eyrich, W., Filges, D., Fischer, V., Fortsch, S., Franzen, A., Frascaria, R., Freiesleben, H., Freindl, L., Fritsch, M., Gabler, S., Gasthuber, M., Gebel, R., Gehring, R., Geyer, R., Goodman, C., Gotta, D., Grebenyuk, O., Greiff, J., Gross, A., Gross-Hardt, R., Grzonka, D., Gutschmidt, H., Hamsink, W., Hardt, A., Hartmann, M., Hassan, A., Hatanaka, K., Hauffe, J., Hawash, M., Heider, S., Heine, A., Henrich, C., Hermanowski, P., Hermes, T., Hinterberger, F., Horn, L., Hubner, B., Igel, S., Jahn, P., Jahn, R., Jarczyk, Lucjan, Jeske, M., Jochmann, M., Joosten, R., Kacharava, A., Kamys, B., Karnadi, M., Kemmerling, G., Kilian, K., Kirchner, T., Khoukaz, A., Klehr, F., Klein, W., Kliczewski, S., Klimala, W., Koch, H., Koch, H. R., Kohler, M., Kolev, D., Komarov, V., Koptev, V., Kopyto, D., Kozela, A., Krause, R., Krug, J., Kruglov, V., Kuhlmann, E., Kuhn, U., Kulessa, P., Kulikov, A., Kurbatov, V., Kutsarova, T., Lahr, U., Lange, J. S., Langenhagen, N., Langkau, R., Leege, K., Lippert, G., Lister, Tim A., Liu, L. C., Macharashvili, G., Machner, H., Maier, R., Martin, S., Maschuw, R., Matthay, H., Mayer-Kuckuk, T., Menteshashvili, Z., Merla, K., Mertler, G., Metsch, B., Metzger, A., Meyer, W., Michel, P., Mikirtychyants, S., Moller, K., Moosburger, M., Morsch, H. P., Mosel, F., Moskal, P., Muller, H., Muller, M., Munstermann, M., Nake, C., Nann, H., Naumann, B., Naumann, L., Nellen, R., Nelubin, V., Neumann-Cosel, P., Nioradze, M., Oehme, W., Oelert, W., Oepen, T., Ohm, H., Patt, J., Petrus, A., Petry, H. R., Plachotnikov, N., Prasuhn, D., Prietzschk, B., Puzynin, A., Pysz, K., Quentmeier, C., Razen, B., Rimarzig, B., Ringe, P., Roderburg, E., Rogge, M., Rohdjess, H., Rohlof, C., Rook, M., Rosendaal, D., Ross, U., Rossen, P., Rudy, Z., Santo, R., Sapozhnikov, M., Schamlott, A., Schapler, D., Scheid, H., Schepers, G., Paetz Gen Schieck, Hans, Schirm, N., Schleichert, R., Schmidt, K., Schnase, A., Schneider, A., Schneider, C., Schneidereit, C., Scho, K., Schulke, A., Schulz-Rojahn, M., Schwandt, F., Schwarz, U., Schwarz, V., Scobel, W., Sefzick, T., Seyfarth, H., Shcherbakov, G., Sibirtsev, A., Siebert, R., Siodlaczek, U., Sistemich, K., Siudak, R., Smyrski, J., Sokolowski, M., Sperl, R., Stechemesser, H., Steinke, M., Sterzenbach, G., Stinzing, F., Stockhorst, H., Strzalkowski, A., Toelle, Raimund, Trelle, H. J., Trusov, Sergey V., Roumen Tsenov, Turek, P., Uozumi, Y., Uzikov, Yu, Vasilev, A., Wagner, G. J., Wallom, D., Watzlawik, K. H., Wellinghausen, A., Wiedmann, W., Wirth, S., Wolke, M., Woller, K., Wustner, P., Wurzinger, R., Yuasa, Y., Zalikhanov, B., Zhuravlev, N. I., Ziegler, R., Zielinski, U., Ziolkowski, M., Zolnierczuk, P. A., Zwoll, K., and Zychor, I.

33. The pp→pp π+π- reaction studied in the low-energy tail of the Roper resonance

Author

Pätzold, J., Mikhail Bashkanov, Bilger, R., Brodowski, W., Calén, H., Clement, H., Ekström, C., Fransson, K., Greiff, J., Häggström, S., Höistad, B., Johanson, J., Johansson, A., Johansson, T., Kilian, K., Kullander, S., Kupść, A., Marciniewski, P., Morosov, B., Oelert, W., Ruber, R. J. M. Y., Schepkin, M., Scobel, W., Stepaniak, J., Sukhanov, A., Turowiecki, A., Wagner, G. J., Wilhelmi, Z., Zabierowski, J., and Zlomanczuk, J.

34. ISOSPIN DECOMPOSITION OF pp -> NN pi pi CROSS SECTIONS - DO WE SEE A SIGN OF Delta(1600) EXCITATION IN THE nn pi(+)pi(+) CHANNEL?

Author

Skorodko, T., Mikhail Bashkanov, Bogoslowsky, D., Calen, H., Clement, H., Ekstrom, C., Fransson, K., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., Koch, I., Kren, F., Kullander, S., Kupsc, A., Kuznetsov, A., Marciniewski, P., Meier, R., Morosov, B., Pauly, C., Petterson, H., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Schonning, K., Scobel, W., Shwartz, B., Sopov, V., Stepaniak, J., Thorngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., and Zlomanczuk, J.

35. Exclusive measurement of the pp → ppπ+π- reaction near threshold

Author

Broclowski, W., Bilger, R., Calén, H., Clement, H., Ekström, C., Fransson, K., Greiff, J., Häggström, S., Höistad, B., Johanson, J., Johansson, A., Tord Johansson, Kilian, K., Kullander, S., Kupść, A., Marciniewski, P., Morosov, B., Oelert, W., Pätzold, J., Ruber, R. J. M. Y., Schepkin, M., Scobel, W., Seluzhenkov, I., Stepaniak, J., Sukhanov, A., Turowiecki, A., Wagner, G. J., Wilhelmi, Z., Zabierowski, J., and Zlomanczuk, J.

36. Two-pion production in proton-proton collisions near threshold

Author

Calén, H., Fransson, K., Gustafsson, L., Häggström, S., Höistad, B., Johansson, A., Johanson, J., Johansson, T., Khoukaz, A., Kullander, S., Ruber, R., Zlomańczuk, J., Ekström, C., Bilger, R., Brodowski, W., Clement, H., Wagner, G. J., Oelert, W., Sefzick, T., Greiff, J., Koch, I., Scobel, W., Kupsc, A., Marciniewski, P., Joanna Stepaniak, Morosov, B., Povtorejko, A., Sukhanov, A., Zabierowski, J., and Shwartz, B.

37. On the ππ production in free and in-medium NN-collisions: σ-Channel low-mass enhancement and πoπo/π +π--asymmetry

Author

Mikhail Bashkanov, Skorodko, T., Bargholtz, C., Bogoslawsky, D., Calén, H., Cappellaro, F., Clement, H., Demiroérs, L., Doroshkevich, E., Ekström, C., Fransson, K., Geren, L., Greiff, J., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Kaskulov, M. M., Keleta, S., Khakimova, O., Koch, I., Kren, F., Kullander, S., Kupśé, A., Kuznetsov, A., Lindberg, K., Marciniewski, P., Meier, R., Morosov, B., Oelert, W., Pauly, C., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Scobel, W., Shafigullin, R., Shwartz, B., Sopov, V., Stepaniak, J., Tegner, P. -E, Tchernyshev, V., Thörngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., Zartova, I., and Zlomanczuk, J.

38. On the pi pi production in free and in-medium NN-collisions: sigma-channel low-mass enhancement and pi(0)pi(0)/pi(+)pi(-)-asymmetry

Author

Mikhail Bashkanov, Skorodko, T., Bargholtz, C., Bogoslawsky, D., Calen, H., Cappellaro, F., Clement, H., Demiroers, L., Doroshkevich, E., Ekstroem, C., Fransson, K., Geren, L., Greiff, J., Gustafsson, L., Hoeistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Kaskulov, M. M., Keleta, S., Khakimova, O., Koch, I., Kren, F., Kullander, S., Kupsc, A., Kuznetov, A., Lindberg, K., Marciniewski, P., Meier, R., Morosov, B., Oelert, W., Pauly, C., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Scobel, W., Shafigullin, R., Shwartz, B., Sopovk, V., Stepaniak, J., Tegner, P. -E, Tchernyshev, V., Thoerngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., Zartova, I., and Zlomanczuk, J.

39. Quasifree bremsstrahlung in the dp→dp γ reaction above the pion production threshold

Author

Greiff, J., Koch, I., Scobel, W., Rohdjeß, H., Dyring, J., Fransson, K., Gustafsson, L., Häggström, S., Höistad, B., Johanson, J., Johansson, A., Tord Johansson, Khoukaz, A., Kullander, S., Ruber, R. J. M. Y., Złomańczuk, J., Dunin, V., Morosov, B., Sukhanov, A., Zernov, A., Stepaniak, J., Bilger, R., Brodowski, W., Clement, H., Wagner, G. J., Calén, H., Ekström, C., Kupść, A., Marciniewski, P., Zabierowski, J., Shwartz, B., Oelert, W., Sefzick, T., and Turowiecki, A.

40. THE pp -> d pi(+)pi(0) REACTION - A CASE OF Delta Delta EXCITATION WITHOUT ABC-EFFECT

Author

Kren, F., Mikhail Bashkanov, Bogoslowsky, D., Calen, H., Clement, H., Ekstrom, C., Fransson, K., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., Koch, I., Kullander, S., Kupsc, A., Kuznetsov, A., Marciniewski, P., Meier, R., Morosov, B., Pauly, C., Petterson, H., Petukhov, Y., Povtorejko, A., Ruber, R. J. M. Y., Schonning, K., Scobel, W., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. -E, Thorngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., and Zlomanczuk, J.

41. ENERGY-FLOW AND CHARGED-PARTICLE SPECTRA IN DEEP-INELASTIC SCATTERING AT HERA

Author

Abt, I., Ahmed, T., Andreev, V., Aid, S., Andrieu, B., Appuhn, Rd, Arpagaus, M., Babaev, A., Barwolff, H., Ban, J., Baranov, P., Barrelet, E., Bartel, W., Bassler, U., Beck, Hp, Behrend, Hj, Belousov, A., Berger, C., Bergstein, H., Bernardi, G., Bernet, R., Bertrandcoremans, G., Besancon, M., Biddulph, P., Binder, E., Bizot, Jc, Blobel, V., Borras, K., Bosetti, Pc, Boudry, V., Bourdarios, C., Braemer, A., Brasse, F., Braun, U., Braunschweig, W., Brisson, V., Bruncko, D., Bungener, L., Burger, J., Busser, Fw, Buniatian, A., Burke, S., Buschhorn, G., Campbell, Aj, Carli, T., Charles, F., Chyla, J., Clarke, D., Clegg, Ab, Colombo, M., Coughlan, Ja, Courau, A., Coutures, C., Cozzika, G., Criegee, L., Cvach, J., Dagoret, S., Dainton, Jb, Danilov, M., Dann, Awe, Dau, Wd, David, M., Deffur, E., Delcourt, B., Delbuono, L., Devel, M., Deroeck, A., Dinezza, P., Dingus, P., Dollfus, C., Dowell, Jd, Dreis, Hb, Drescher, A., Duboc, J., Dullmann, D., Dunger, O., Duhm, H., Ebbinghaus, R., Eberle, M., Ebert, J., Ebert, Tr, Eckerlin, G., Efremenko, V., Egli, S., Ehrlichmann, H., Eichenberger, S., Eichler, R., Eisele, F., Eisenhandler, E., Ellis, Nn, Ellison, Rj, Elsen, E., Erdmann, M., Evrard, E., Favart, L., Fedotov, A., Feeken, D., Felst, R., Feltesse, J., Fensome, If, Ferencei, J., Ferrarotto, F., Flamm, K., Flauger, W., Fleischer, M., Flieser, M., Flugge, G., Fomenko, A., Fominykh, B., Forbush, M., Formanek, J., Foster, Jm, Franke, G., Fretwurst, E., Fuhrmann, P., Gabathuler, E., Gamerdinger, K., Garvey, J., Gayler, J., Gebauer, M., Gellrich, A., Gennis, M., Genzel, H., Gerhards, R., Godfrey, L., Goerlach, U., Lidia Goerlich, Gogitidze, N., Goldberg, M., Goldner, D., Goodall, Am, Gorelov, I., Goritchev, P., Grab, C., Grassler, H., Grassler, R., Greenshaw, T., Greif, H., Grindhammer, G., Gruber, A., Gruber, C., Haack, J., Haidt, D., Hajduk, L., Hamon, O., Hampel, M., Hanlon, Em, Hapke, M., Harjes, J., Haydar, R., Haynes, Wj, Heatherington, J., Hedberg, V., Heinzelmann, G., Henderson, Rcw, Henschel, H., Herma, R., Herynek, I., Hildesheim, W., Hill, P., Hilton, Cd, Hladky, J., Hoeger, Kc, Hoppner, M., Huet, P., Hufnagel, H., Huot, N., Ibbotson, M., Itterbeck, H., Jabiol, Ma, Jacholkowska, A., Jacobsson, C., Jaffre, M., Jansen, T., Jonsson, L., Johannsen, K., Johnson, Dp, Johnson, L., Jung, H., Kalmus, Pip, Kant, D., Kazarian, S., Kaschowitz, R., Kasselmann, P., Kathage, U., Kaufmann, Hh, Kenyon, Ir, Kermiche, S., Keuker, C., Kiesling, C., Klein, M., Kleinwort, C., Knies, G., Ko, W., Kohler, T., Kolanoski, H., Kole, F., Kolya, Sd, Korbel, V., Korn, M., Kostka, P., Kotelnikov, Sk, Krasny, Mw, Krucker, D., Kruger, U., Kubenka, Jp, Kuster, H., Kuhlen, M., Kurca, T., Kurzhofer, J., Kuznik, B., Lacour, D., Lamarche, F., Lander, R., Landon, Mpj, Lange, W., Langkau, R., Lanius, P., Laporte, Jf, Lebedev, A., Leuschner, A., Leverenz, C., Levonian, S., Lewin, D., Ley, C., Lindner, A., Lindstrom, G., Linsel, F., Lipinski, J., Loch, P., Lohmander, H., Lopez, Gc, Luers, D., Luke, D., Magnussen, N., Malinovski, E., Mani, S., Marage, P., Marks, J., Marshall, R., Martens, J., Martin, R., Martyn, Hu, Martyniak, J., Masson, S., Mavroidis, A., Maxfield, Sj, Mcmahon, Sj, Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, Ca, Meyer, H., Meyer, J., Mikocki, S., Monnier, E., Moreau, F., Moreels, J., Morris, Jv, Muller, K., Murin, P., Murray, Sa, Nagovizin, V., Naroska, B., Naumann, T., Newman, Pr, Newton, D., Neyret, D., Nguyen, Hk, Niebergall, F., Niebuhr, C., Nisius, R., Nowak, G., Noyes, Gw, Nyberg, M., Oberlack, H., Obrock, U., Olsson, Je, Orenstein, S., Ouldsaada, F., Pascaud, C., Patel, Gd, Peppel, E., Peters, S., Phillips, Ht, Phillips, Jp, Pichler, C., Pilgram, W., Pitzl, D., Prell, S., Prosi, R., Radel, G., Raupach, F., Rauschnabel, K., Reimer, P., Reinshagen, S., Ribarics, P., Riech, V., Riedlberger, J., Riess, S., Rietz, M., Robertson, Sm, Robmann, P., Roosen, R., Rosenbauer, K., Rostovtsev, A., Royon, C., Rudowicz, M., Ruffer, M., Rusakov, S., Rybicki, K., Sahlmann, N., Sanchez, E., Sankey, Dpc, Savitsky, M., Schacht, P., Schleper, P., Vonschlippe, W., Schmidt, C., Schmidt, D., Schmitz, W., Schoning, A., Schroder, V., Schuhmann, E., Schulz, M., Schwab, B., Schwind, A., Scobel, W., Seehausen, U., Sell, R., Semenov, A., Shekelyan, V., Sheviakov, I., Shooshtari, H., Shtarkov, Ln, Siegmon, G., Siewert, U., Sirois, Y., Skillicorn, Io, Smirnov, P., Smith, Jr, Soloviev, Y., Spitzer, H., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Stephens, K., Stier, J., Stosslein, U., Strachota, J., Straumann, U., Struczinski, W., Sutton, Jp, Taylor, Re, Tchernyshov, V., Thiebaux, C., Thompson, G., Tichomirov, I., Truol, P., Turnau, J., Tutas, J., Urban, L., Usik, A., Valkar, S., Valkarova, A., Vallee, C., Vanesch, P., Vartapetian, A., Vazdik, Y., Vecko, M., Verrecchia, P., Vkc, R., Villet, G., Vogel, E., Wacker, K., Walker, Iw, Walther, A., Weber, G., Wegener, D., Wegener, A., Wellisch, Hp, West, Lr, Willard, S., Winde, M., Winter, Gg, Wolff, T., Womersley, La, Wright, Ae, Wulff, N., Yiou, Tp, Zacek, J., Zeitnitz, C., Ziaeepour, H., Zimmer, M., Zimmermann, W., and Zomer, F.

42. MEASUREMENT OF INCLUSIVE JET CROSS-SECTIONS IN PHOTOPRODUCTION AT HERA

Author

Abt, I., Ahmed, T., Andreev, V., Andrieu, B., Appuhn, Rd, Arpagaus, M., Babaev, A., Barwolff, H., Ban, J., Baranov, P., Barrelet, E., Bartel, W., Bassler, U., Beck, Hp, Behrend, Hj, Belousov, A., Berger, C., Bergstein, H., Bernardi, G., Bernet, R., Bertrandcoremans, G., Besancon, M., Biddulph, P., Binder, E., Bischoff, A., Bizot, Jc, Blobel, V., Borras, K., Bosetti, Pc, Boudry, V., Bourdarios, C., Brasse, F., Braun, U., Braunschweig, W., Brisson, V., Bruncko, D., Bungener, L., Burger, J., Busser, Fw, Buniatian, A., Burke, S., Buschhorn, G., Campbell, Aj, Carli, T., Charles, F., Clarke, D., Clegg, Ab, Colombo, M., Coughlan, Ja, Courau, A., Coutures, C., Cozzika, G., Criegee, L., Cvach, J., Dagoret, S., Dainton, Jb, Danilov, M., Dann, Awe, Dau, Wd, David, M., Deffur, E., Delcourt, B., Delbuono, L., Devel, M., Deroeck, A., Dingus, P., Dollfus, C., Dowell, Jd, Dreis, Hb, Drescher, A., Duboc, J., Dullmann, D., Dunger, O., Duhm, H., Ebbinghaus, R., Eberle, M., Ebert, J., Ebert, Tr, Eckerlin, G., Efremenko, V., Egli, S., Eichenberger, S., Eichler, R., Eisele, F., Eisenhandler, E., Ellis, Nn, Ellison, Rj, Elsen, E., Erdmann, M., Evrard, E., Favart, L., Fedotov, A., Feeken, D., Felst, R., Feltesse, J., Fensome, If, Ferencei, J., Ferrarotto, F., Flamm, K., Flauger, W., Fleischer, M., Flugge, G., Fomenko, A., Fominykh, B., Forbush, M., Formanek, J., Foster, Jm, Franke, G., Fretwurst, E., Fuhrmann, P., Gabathuler, E., Gamerdinger, K., Garvey, J., Gayler, J., Gellrich, A., Gennis, M., Genzel, H., Gerhards, R., Godfrey, L., Goerlach, U., Lidia Goerlich, Goldberg, M., Goodall, Am, Gorelov, I., Goritchev, P., Grab, C., Grassler, H., Grassler, R., Greenshaw, T., Greif, H., Grindhammer, G., Gruber, C., Haack, J., Haidt, D., Hajduk, L., Hamon, O., Handschuh, D., Hanlon, Em, Hapke, M., Harjes, J., Haydar, R., Haynes, Wj, Heatherington, J., Hedberg, V., Heinzelmann, G., Henderson, Rcw, Henschel, H., Herma, R., Herynek, I., Hildesheim, W., Hill, P., Hilton, Cd, Hladky, J., Hoeger, Kc, Huet, P., Hufnagel, H., Huot, N., Ibbotson, M., Itterbeck, H., Jabiol, Ma, Jacholkowska, A., Jacobsson, C., Jaffre, M., Jansen, T., Jonsson, L., Johannsen, K., Johnson, Dp, Johnson, L., Jung, H., Kalmus, Pip, Kasarian, S., Kaschowitz, R., Kasselmann, P., Kathage, U., Kaufmann, Hh, Kenyon, Ir, Kermiche, S., Keuker, C., Kiesling, C., Klein, M., Kleinwort, C., Knies, G., Ko, W., Kohler, T., Kolanoski, H., Kole, F., Kolya, Sd, Korbel, V., Korn, M., Kostka, P., Kotelnikov, Sk, Krasny, Mw, Krehbiel, H., Krucker, D., Kruger, U., Kubenka, Jp, Kuster, H., Kuhlen, M., Kurca, T., Kurzhofer, J., Kuznik, B., Lamarche, F., Lander, R., Landon, Mpj, Lange, W., Langkau, R., Lanius, P., Laporte, Jf, Lebedev, A., Leuschner, A., Leverenz, C., Levonian, S., Lewin, D., Ley, C., Lindner, A., Lindstrom, G., Linsel, F., Lipinski, J., Loch, P., Lohmander, H., Lopez, Gc, Luers, D., Magnussen, N., Malinovski, E., Mani, S., Marage, P., Marks, J., Marshall, R., Martens, J., Martin, R., Martyn, Hu, Martyniak, J., Masson, S., Mavroidis, A., Maxfield, Sj, Mcmahon, Sj, Mehta, A., Meier, K., Mercer, D., Merz, T., Meyer, Ca, Meyer, H., Meyer, J., Mikocki, S., Milone, V., Monnier, E., Moreau, F., Moreels, J., Morris, Jv, Muller, K., Murin, P., Murray, Sa, Nagovizin, V., Naroska, B., Naumann, T., Newton, D., Neyret, D., Nguyen, Hk, Niebergall, F., Nisius, R., Nowak, G., Noyes, Gw, Nyberg, M., Oberlack, H., Obrock, U., Olsson, Je, Orenstein, S., Ouldsaada, F., Pascaud, C., Patel, Gd, Peppel, E., Peters, S., Phillips, Ht, Phillips, Jp, Pichler, C., Pilgram, W., Pitzl, D., Prell, S., Prosi, R., Radel, G., Raupach, F., Rauschnabel, K., Reimer, P., Ribarics, P., Riech, V., Riedlberger, J., Riess, S., Rietz, M., Robertson, Sm, Robmann, P., Roosen, R., Rostovtsev, A., Royon, C., Rudowicz, M., Ruffer, M., Rusakov, S., Rybicki, K., Sahlmann, N., Sanchez, E., Sankey, Dpc, Savitsky, M., Schacht, P., Schleper, P., Vonschlippe, W., Schmidt, C., Schmidt, D., Schmitz, W., Schroder, V., Schulz, M., Schwind, A., Scobel, W., Seehausen, U., Sell, R., Semenov, A., Shekelyan, V., Sheviakov, I., Shooshtari, H., Shtarkov, Ln, Siegmon, G., Siewert, U., Sirois, Y., Skillicorn, Io, Smirnov, P., Smith, Jr, Smolik, L., Soloviev, Y., Spitzer, H., Staroba, P., Steenbock, M., Steffen, P., Steinberg, R., Stella, B., Stephens, K., Stier, J., Stosslein, U., Strachota, J., Straumann, U., Struczinski, W., Sutton, Jp, Taylor, Re, Tchernyshov, V., Thiebaux, C., Thompson, G., Tichomirov, I., Truol, P., Turnau, J., Tutas, J., Urban, L., Usik, A., Valkar, S., Valkarova, A., Vallee, C., Vanesch, P., Vartapetian, A., Vazdik, Y., Vecko, M., Verrecchia, P., Vick, R., Villet, G., Vogel, E., Wacker, K., Walker, Iw, Walther, A., Weber, G., Wegener, D., Wegner, A., Wellisch, Hp, Willard, S., Winde, M., Winter, Gg, Wolff, T., Womersley, La, Wright, Ae, Wulff, N., Yiou, Tp, Zacek, J., Zavada, P., Zeitnitz, C., Ziaeepour, H., Zimmer, M., Zimmermann, W., and Zomer, F.

43. Proposal for the wide angle shower apparatus (WASA) at COSY-Julich: WASA at COSY

Author

Adam, H. -H, Bashkanov, M., Bechstedt, U., Bisplinghoff, J., Bogoslovski, D., Bondar, A., Borasoy, B., Buescher, Markus, Brinkmann, K. -Th, Brylski, P., Calen, H., Cappellaro, F., Chernyshev, V., Clement, H., Czyzykiewicz, R., Doroshkevich, E., Ekstrom, Curt, Erven, W., Faldt, G., Fedorets, P., Fransson, K., Freiesleben, H., Gillitzer, A., Goldenbaum, F., Gotta, D., Grishina, V. Yu, Grzonka, D., Gurov, Yu, Gustafsson, L., Haidenbauer, J., Christoph Hanhart, Hartmann, M., Hawranek, P., Hejny, V., Hoistad, B., Ivanov, G., Jacewicz, M., Janusz, M., Jarczyk, Lucjan, Johansson, T., Kamys, B., Karlsson, B., Kemmerling, G., Khakimova, O., Khoukaz, A., Kilian, K., Kistryn, S., Klaja, P., Kleber, V., Kleines, H., Kliczewski, S., Kolev, D., Komarov, V. I., Komogorova, L., Kondratyuk, L., Kravcikova, M., Kren, F., Krewald, S., Kuhlmann, E., Kulessa, P., Kullander, S., Kupsc, A., Kuznetsov, A., Lesiak, M., Lieb, P. J., Machner, H., Magiera, A., Marciniewski, P., Martemyanov, B., Martinska, G., Matveev, V., Morosov, B., Moskal, P., Meissner, U. -G, Mersmann, T., Morsch, H. -P, Nekipelov, M., Nikitin, A., Nunighoff, K., Oelert, W., Ohm, H., Pauly, C., Pettersson, H., Petukhov, Y., Piskor-Ignatowicz, C., Podkopal, P., Povtoreyko, A., Przerwa, J., Pysz, K., Ritman, J., Roderburg, E., Ruber, R., Rudy, Z., Rozek, T., Schadmand, S., Schonning, K., Scobel, W., Sefzick, T., Serdyuk, V., Shabalin, E., Shafigullin, R., Sibirtsev, A., Siemaszko, M., Sitnik, I., Siudak, R., Shwartz, B., Sidorov, V., Skorodko, T., Smiechowicz, M., Smyrski, J., Sopov, V., Stepaniak, J., Stroher, H., Szczurek, A., Taschner, A., Thorngren Engblom, P., Tikhomirov, V., Tsenov, R., Turowiecki, A., Ulicny, M., Urban, J., Uzikov, Yu, Vlasov, P., Wagner, G. J., Wiedner, U., Winter, P., Wintz, P., Wirzba, A., Wolke, M., Wronska, A., Wustner, P., Wycech, S., Zabierowski, J., Zipper, W., Zlomanczuk, J., Zupranski, P., Zwoll, K., and Zychor, I.

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