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537 results on '"Krapp, M."'

108. Systematic study of the pp -> pp omega reaction

Author

Abdel-Bary, M., Abdel-Samad, S., Brinkmann, K., Clement, H., Dietrich, J., Doroshkevich, E., Dshemuchadse, S., Ehrhardt, K., Erhardt, A., Eyrich, W., Filippi, A., Freiesleben, H., Fritsch, M., Gast, W., Gillitzer, A., Gottwald, J., Jager, H., Jakob, B., Jakel, R., Karsch, L., Kilian, K., Koch, H., Krapp, M., Kress, J., Kuhlmann, E., Lehmann, A., Marcello, S., Mauro, S., Michel, P., Moller, K., Morsch, H., Naumann, L., Paul, N., Pizzolotto, C., Plettner, C., Reimann, S., Richter, M., Ritman, J., Roderburg, E., Schamlott, A., Schonmeier, P., Schroeder, W., Schulte-Wissermann, M., Sefzick, T., Steinke, M., Sun, G., Teufel, A., Ullrich, W., Wagner, G., Wagner, M., Wenzel, R., Wilms, A., Wintz, P., Wustner, P., and Zupranski, P.

Subjects
+400+MeV%29%22">Other reactions above meson production thresholds (energies > 400 MeV), Nuclear reactions involving few-nucleon systems, nucleon-nucleon interactions, Nucleon-nucleon interactions, Other mesons with S=C=0, mass < 2.5 GeV, vector meson production, polarization in interactions and scattering, Nuclear Experiment, Polarization in interactions and scattering
Abstract

A systematic study of the production of omega-mesons in proton-proton-collisions was carried out in a kinematically complete experiment at three excess energies (epsilon= 92, 128, 173 MeV). Both protons were detected using the large-acceptance COSY-TOF spectrometer at an external beam line at the Cooler Synchrotron COSY at Forschungszentrum J¨ulich. The total cross section, angular distributions of both omega-mesons and protons were measured and presented in various reference frames such as the overall CMS, helicity and Jackson frame. In addition, the orientation of the omega-spin and invariant mass spectra were determined. We observe !-production to take place dominantly in Ss and Sp final states at epsilon = 92, 128 MeV and, additionally, in Sd at epsilon = 173 MeV. No obvious indication of resonant omega-production via N*- resonances was found, as proton angular distributions are almost isotropic and invariant mass spectra are compatible with phase space distributions. A dominant role of 3P1 and 1S0 initial partial waves for omega-production was concluded from the orientation of the decay plane of the !-meson. Although the Jackson angle distributions in the omega-p-Jackson frame are anisotropic we argue that this is not an indication of a resonance but rather a kinematical effect reflecting the anisotropy of the omega angular distribution. The helicity angle distribution in the omega-p-helicity frame shows an anisotropy which probably reflects effects of the omega angular momenta in the final state; this observable may be, in addition to the orientation of the omega decay plane, the most sensitive one to judge the validity of theoretical descriptions of the production process.

Published
2010

109. Systematic study of the pp -> pp omega reaction

Author

TOF Collaboration, Abdel-Bary, M., Abdel-Samad, S., Brinkmann, K. -Th., Clement, H., Dietrich, J., Doroshkevich, E., Dshemuchadse, S., Ehrhardt, K., Erhardt, A., Eyrich, W., Filippi, A., Freiesleben, H., Fritsch, M., Gast, W., Gillitzer, A., Gottwald, J., J��ger, H., Jakob, B., J��kel, R., Karsch, L., Kilian, K., Koch, H., Krapp, M., Kre��, J., Kuhlmann, E., Lehmann, A., Marcello, S., Mauro, S., Michel, P., M��ller, K., Morsch, H. P., Naumann, L., Paul, N., Pizzolotto, C., Plettner, Ch., Reimann, S., Richter, M., Ritman, J., Roderburg, E., Schamlott, A., Sch��nmeier, P., Schroeder, W., Schulte-Wissermann, M., Sefzick, T., Steinke, M., Sun, G. Y., Teufel, A., Ullrich, W., Wagner, G. J., Wagner, M., Wenzel, R., Wilms, A., Wintz, P., W��stner, P., and Zupranski, P.

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

A systematic study of the production of omega-mesons in proton-proton-collisions was carried out in a kinematically complete experiment at three excess energies(epsilon= 92, 128, 173MeV). Both protons were detected using the large-acceptance COSY-TOF spectrometer at an external beam line at the Cooler Synchrotron COSY at Forschungszentrum J��lich. The total cross section, angular distributions of both omega-mesons and protons were measured and presented in various reference frames such as the overall CMS, helicity and Jackson frame. In addition, the orientation of the omega-spin and invariant mass spectra were determined. We observe omega-production to take place dominantly in Ss and Sp final states at epsilon = 92, 128 MeV and, additionally, in Sd at epsilon= 173 MeV. No obvious indication of resonant omega-production via N^*-resonances was found, as proton angular distributions are almost isotropic and invariant mass spectra are compatible with phase space distributions. A dominant role of ^3P_1 and ^1S_0 initial partial waves for omega-production was concluded from the orientation of the decay plane of the omega-meson. Although the Jackson angle distributions in the omega-p-Jackson frame are anisotropic we argue that this is not an indication of a resonance but rather a kinematical effect reflecting the anisotropy of the omega angular distribution. The helicity angle distribution in the omega-p-helicity frame shows an anisotropy which probably reflects effects of the omega angular momenta in the final state; this observable may be, in addition to the orientation of the omega decay plane, the most sensitive one to judge the validity of theoretical descriptions of the production process., 17 pages, 16 figures, accepted for publication in EPJA

Published
2010
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110. Influence of N*-resonances on hyperon production in the channel pp->K+ Lambda p at 2.95, 3.20 and 3.30 GeV/c beam momentum

Author

AbdEl Samad, S., Abdel Bary, M., Brinkmann, K., Clement, H., Dietrich, J., Dorochkevitch, E., Dshemuchadse, S., Ehrhardt, K., Erhardt, A., Eyrich, W., Fanara, C., Filges, D., Filippi, A., Freiesleben, H., Fritsch, M., Gast, W., Georgi, J., Gillitzer, A., Gottwald, J., Hauffe, J., Hesselbarth, D., Jaeger, H., Jakob, B., Jaekel, R., Karsch, L., Kilian, K., Koch, H., Krapp, M., Kress, J., Kuhlmann, E., Lehmann, A., Marcello, Simonetta, Marwinski, S., Mauro, S., Metzger, A., Meyer, W., Michel, P., Moeller, K., Moertel, H., Morsch, H. P., Naumann, L., Paul, N., Pinna, L., Pizzolotto, C., Plettner, C., Reimann, S., Richter, M., Ritman, J., Roderburg, E., Schamlott, A., Schoenmeier, P., Schulte Wissermann, M., Schroeder, W., Sefzick, T., Steinke, M., Stinzing, F., Sun, G., Teufel, A., Ullrich, W., Waechter, J., Wagner, G. J., Wagner, M., Wenzel, R., Wilms, A., Wintz, P., Wirth, S., Wüstner, P., and Zupranski, P.

Subjects
Associated strangeness production, hyperon production, total cross-section, baryon resonances, Dalitz plot
Published
2010

111. Influence of N*-resonances on hyperon production in the channel pp->K+ Lambda p at 2.95, 3.20 and 3.30 GeV/c beam momentum

Author

TOF Collaboration, AbdEl-Samad, S., Abdel-Bary, M., Brinkmann, K., Clement, H., Dietrich, J., Dorochkevitch, E., Dshemuchadse, S., Ehrhardt, K., Erhardt, A., Eyrich, W., Fanara, C., Filges, D., Filippi, A., Freiesleben, H., Fritsch, M., Gast, W., Georgi, J., Gillitzer, A., Gottwald, J., Hauffe, J., Hesselbarth, D., Jaeger, H., Jakob, B., Jaekel, R., Karsch, L., Kilian, K., Koch, H., Krapp, M., Kress, J., Kuhlmann, E., Lehmann, A., Marcello, S., Marwinski, S., Mauro, S., Metzger, A., Meyer, W., Michel, P., Moeller, K., Moertel, H., Morsch, H. P., Naumann, L., Paul, N., Pinna, L., Pizzolotto, C., Plettner, C., Reimann, S., Richter, M., Ritman, J., Roderburg, E., Schamlott, A., Schoenmeier, P., Schulte-Wissermann, M., Schroeder, W., Sefzick, T., Steinke, M., Stinzing, F., Sun, G., Teufel, A., Ullrich, W., Waechter, J., Wagner, G. J., Wagner, M., Wenzel, R., Wilms, A., Wintz, P., Wirth, S., Wuestner, P., and Zupranski, P.

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

Hyperon production in the threshold region was studied in the reaction pp -> K+Lp using the time-of-flight spectrometer COSY-TOF. Exclusive data, covering the full phase-space, were taken at the three different beam momenta of p_beam=2.95, 3.20 and 3.30 GeV/c, corresponding to excess energies of epsilon=204, 285 and 316 MeV, respectively. Total cross-sections were deduced for the three beam momenta to be 23.9+/-0.8 +/-2.0 ub, 28.4+/-1.3 +/-2.2 ub and 35.0+/-1.3 +/-3.0 ub. Differential observables including Dalitz plots were obtained. The analysis of the Dalitz plots reveals a strong influence of the N(1650)-resonance at p_beam=2.95 GeV/c, whereas for the higher momenta an increasing relative contribution of the N(1710)- and/or of the N(1720)-resonance was observed. In addition, the pL-final-state interaction turned out to have a significant influence on the Dalitz plot distribution., accepted for publication at Physics Letters B; some minor text changes were done; also the scale of the ordinates of figure 9 has been changed

Published
2010
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113. Improved study of a possible Theta+ production in the pp -> p K0 sigma+ reaction with the COSY-TOF spectrometer

Author

TOF Collaboration, Abdel-Bary, M., Abdel-Samad, S., Brinkmann, K. -Th., Castelijns, R., Clement, H., Dietrich, J., Dshemuchadse, S., Dorochkevitch, E., Eyrich, W., Ehrhardt, K., Erhardt, A., Freiesleben, H., Gast, W., Georgi, J., Gillitzer, A., Jaeger, H., Jaekel, R., Karsch, L., Kilian, K., Krapp, M., Kuhlmann, E., Lehmann, A., Morsch, H. P., Paul, N., Pinna, L., Pizzolotto, C., Ritman, J., Roderburg, E., Schadmand, S., Schoenmeier, P., Schulte-Wissermann, M., Schroeder, W., Sefzick, T., Teufel, A., Ucar, A., Ullrich, W., Wenzel, R., Wintz, P., Wuestner, P., and Zupranski, P.

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

The pp -> p K0 Sigma+ reaction was investigated with the TOF spectrometer at COSY at 3.059 GeV/c incident beam momentum. The main objective was to clarify whether or not a narrow exotic S = +1 resnance, the Theta+ pentaquark, is populated at 1.53 GeV/c2 in the K0 p subsystem with a data sample of much higher statistical significance compared to the previously reported data in this channel. An analysis of these data does not confirm the existence of the Theta+ pentaquark. This is expressed as an upper limit for the cross section sigma (pp -> p K0 Sigma+) < 0.15 microbarn at the 95 percent confidence level., 11 pages, 5 figures

Published
2006
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115. Neutron-proton scattering in the context of the d*(2380) resonance

Author

Adlarson, Patrik, Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calén, Hans, Ciepal, I., Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, A., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell E, Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, Carl-Oscar, Hauenstein, F., Heijkenskjöld, Lena, Hejny, V., Hodana, M., Höistad, Bo, Huesken, N., Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kirillov, D. A., Kistryn, S., Kleines, H., Klos, B., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Ohm, H., Ozerianska, I., del Rio, E. Perez, Piskunov, N. M., Podkopal, P., Prasuhn, D., Pricking, A., Pszczel, D., Pysz, K., Pyszniak, A., Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schadmand, S., Sefzick, T., Serdyuk, V., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Taeschner, A., Trzcinski, A., Varma, R., Wagner, G. J., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yurev, L., Zabierowski, J., Zielinski, M. J., Zink, A., Zlomanczuk, J., Zupranski, P., Zurek, M., Adlarson, Patrik, Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calén, Hans, Ciepal, I., Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, A., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell E, Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, Carl-Oscar, Hauenstein, F., Heijkenskjöld, Lena, Hejny, V., Hodana, M., Höistad, Bo, Huesken, N., Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kirillov, D. A., Kistryn, S., Kleines, H., Klos, B., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Ohm, H., Ozerianska, I., del Rio, E. Perez, Piskunov, N. M., Podkopal, P., Prasuhn, D., Pricking, A., Pszczel, D., Pysz, K., Pyszniak, A., Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schadmand, S., Sefzick, T., Serdyuk, V., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Taeschner, A., Trzcinski, A., Varma, R., Wagner, G. J., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yurev, L., Zabierowski, J., Zielinski, M. J., Zink, A., Zlomanczuk, J., Zupranski, P., and Zurek, M.

Abstract

New data on quasifree polarized neutron-proton scattering in the region of the recently observed d* resonance structure are obtained by exclusive and kinematically complete high-statistics measurements with WASA at COSY. This paper details the determination of the beam polarization, checks of the quasifree character of the scattering process, on all obtained Ay angular distributions and on the new partial-wave analysis, which includes the new data producing a resonance pole in D-3(3)-(3)G(3) coupled partial waves at (2380 +/- 10 - i40 +/- 5) MeV-in accordance with the d* dibaryon resonance hypothesis. The effect of the new partial-wave solution on the description of total and differential cross-section data as well as specific combinations of spin-correlation and spin-transfer observables available from COSY-ANKE measurements at T-d = 2.27 GeV is discussed.

Published
2014
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116. Cross section ratio and angular distributions of the reaction p + d -> He-3 + eta at 48.8MeV and 59.8MeV excess energy

Author

Adlarson, Patrik, Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calen, Hans, Ciepal, I., Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, A., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell E. I., Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, Carl-Oscar, Hauenstein, F., Heijkenskjoeld, Lena, Hejny, V., Hodana, M., Höistad, Bo, Huesken, N., Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kirillov, D. A., Kistryn, S., Klos, B., Kleines, H., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Ohm, H., Ozerianska, I., Passfeld, A., del Rio, E. Perez, Piskunov, N. M., Podkopa, P., Prasuhn, D., Pricking, A., Pszczel, Damian, Pysz, K., Pyszniak, Andrzej, Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schadmand, S., Sefzick, T., Serdyuk, V., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Taeschner, A., Trzcinski, A., Varma, R., Wagner, G. J., Weglorz, W., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yurev, L., Zabierowski, J., Zielinski, M. J., Zink, A., Zlomanczuk, Jozef, Zupranski, P., Zurek, M., Adlarson, Patrik, Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calen, Hans, Ciepal, I., Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, A., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell E. I., Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, Carl-Oscar, Hauenstein, F., Heijkenskjoeld, Lena, Hejny, V., Hodana, M., Höistad, Bo, Huesken, N., Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kirillov, D. A., Kistryn, S., Klos, B., Kleines, H., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Ohm, H., Ozerianska, I., Passfeld, A., del Rio, E. Perez, Piskunov, N. M., Podkopa, P., Prasuhn, D., Pricking, A., Pszczel, Damian, Pysz, K., Pyszniak, Andrzej, Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schadmand, S., Sefzick, T., Serdyuk, V., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Taeschner, A., Trzcinski, A., Varma, R., Wagner, G. J., Weglorz, W., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yurev, L., Zabierowski, J., Zielinski, M. J., Zink, A., Zlomanczuk, Jozef, Zupranski, P., and Zurek, M.

Abstract

We present new data for angular distributions and on the cross section ratio of the p+d -> He-3+eta reaction at excess energies of Q - 48.8MeV and Q - 59.8 MeV. The data have been obtained at the WASA-at-COSY experiment (Forschungszentrum Julich) using a proton beam and a deuterium pellet target. While the shape of obtained angular distributions show only a slow variation with the energy, the new results indicate a distinct and unexpected total cross section fluctuation between Q = 20MeV and Q = 60 MeV, which might indicate the variation of the production mechanism within this energy interval.

Published
2014
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117. Evidence for a New Resonance from Polarized Neutron-Proton Scattering

Author

Adlarson, Patrik, Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calen, Hans, Ciepal, I., Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, A., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell, Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, Carl-Oscar, Hauenstein, F., Heijkenskjöld, Lena, Hejny, V., Hodana, M., Höistad, Bo, Huesken, N., Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kirillov, D. A., Kistryn, S., Kleines, H., Klos, B., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Ohm, H., Ozerianska, I., del Rio, E. Perez, Piskunov, N. M., Podkopal, P., Prasuhn, D., Pricking, A., Pszczel, Damian, Pysz, K., Pyszniak, Andrzej, Redmer, Christoph F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schadmand, S., Sefzick, T., Serdyuk, V., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Taeschner, A., Trzcinski, A., Varma, R., Wagner, G. J., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yurev, L., Zabierowski, Janusz, Zielinski, M. J., Zink, A., Zlomanczuk, J., Zupranski, P., Zurek, M., Workman, R. L., Briscoe, W. J., Strakovsky, I. I., Adlarson, Patrik, Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calen, Hans, Ciepal, I., Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, A., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell, Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, Carl-Oscar, Hauenstein, F., Heijkenskjöld, Lena, Hejny, V., Hodana, M., Höistad, Bo, Huesken, N., Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kirillov, D. A., Kistryn, S., Kleines, H., Klos, B., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Ohm, H., Ozerianska, I., del Rio, E. Perez, Piskunov, N. M., Podkopal, P., Prasuhn, D., Pricking, A., Pszczel, Damian, Pysz, K., Pyszniak, Andrzej, Redmer, Christoph F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schadmand, S., Sefzick, T., Serdyuk, V., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Taeschner, A., Trzcinski, A., Varma, R., Wagner, G. J., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yurev, L., Zabierowski, Janusz, Zielinski, M. J., Zink, A., Zlomanczuk, J., Zupranski, P., Zurek, M., Workman, R. L., Briscoe, W. J., and Strakovsky, I. I.

Abstract

Exclusive and kinematically complete high-statistics measurements of quasifree polarized (n) over right arrowp scattering have been performed in the energy region of the narrow resonancelike structure d* with I(J(P)) = 0(3(+)),M approximate to 2380 MeV, and Gamma approximate to 70 MeV observed recently in the double-pionic fusion channels pn -> d pi(0)pi(0) and pn -> d pi(+)pi(-). The experiment was carried out with the WASA detector setup at COSY having a polarized deuteron beam impinged on the hydrogen pellet target and utilizing the quasifree process (d) over right arrowp -> np + p(spectator). This allowed the np analyzing power, A(y), to be measured over a broad angular range. The obtained A(y) angular distributions deviate systematically from the current SAID SP07 NN partial-wave solution. Incorporating the new A(y) data into the SAID analysis produces a pole in the D-3(3) - (3)G(3) waves in support of the d* resonance hypothesis.

Published
2014
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120. Isospin decomposition of the basic double-pionic fusion in the region of the ABC effect

Author

Adlarson, P., Augustyniak, W., Bardan, W., Bashkanov, M., Bednarski, T., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calén, Hans, Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell E. I., Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullstrom, Carl-Oscar, Hauenstein, F., Heijkenskjöld, Lena, Hejny, V., Hinterberger, F., Hodana, M., Höistad, Bo, Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kistryn, S., Klaja, J., Kleines, H., Klos, B., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Li, L., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Nandi, B. K., Niedzwiecki, S., Ohm, H., Ozerianska, I., del Rio, E. Perez, Plucinski, P., Podkopal, P., Prasuhn, D., Pricking, A., Pszczel, Damian, Pysz, K., Pyszniak, Andrzej, Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schadmand, S., Schmidt, A., Sefzick, T., Serdyuk, V., Shah, N., Siemaszko, M., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Tolba, T., Trzcinski, A., Varma, R., Vlasov, P., Wagner, G. J., Weglorz, W., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yuan, X., Yurev, L., Zabierowski, J., Zheng, C., Zielinski, M. J., Zipper, W., Zlomanczuk, Jozef, Zupranski, P., Zurek, M., Adlarson, P., Augustyniak, W., Bardan, W., Bashkanov, M., Bednarski, T., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calén, Hans, Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell E. I., Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullstrom, Carl-Oscar, Hauenstein, F., Heijkenskjöld, Lena, Hejny, V., Hinterberger, F., Hodana, M., Höistad, Bo, Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kistryn, S., Klaja, J., Kleines, H., Klos, B., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Li, L., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Nandi, B. K., Niedzwiecki, S., Ohm, H., Ozerianska, I., del Rio, E. Perez, Plucinski, P., Podkopal, P., Prasuhn, D., Pricking, A., Pszczel, Damian, Pysz, K., Pyszniak, Andrzej, Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schadmand, S., Schmidt, A., Sefzick, T., Serdyuk, V., Shah, N., Siemaszko, M., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Tolba, T., Trzcinski, A., Varma, R., Vlasov, P., Wagner, G. J., Weglorz, W., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yuan, X., Yurev, L., Zabierowski, J., Zheng, C., Zielinski, M. J., Zipper, W., Zlomanczuk, Jozef, Zupranski, P., and Zurek, M.

Abstract

Exclusive and kinematically complete high-statistics measurements of the basic double-pionic fusion reactions pn -> d pi(0)pi(0), pn -> d pi(+)pi(-) and pp -> d pi(+)pi(0) have been carried out simultaneously over the energy region of the ABC effect using the WASA detector setup at COSY. Whereas the isoscalar reaction part given by the d pi(0)pi(0) channel exhibits the ABC effect, i.e. a low-mass enhancement in the pi pi-invariant mass distribution, as well as the associated resonance structure in the total cross section, the isovector part given by the d pi(+)pi(0) channel shows a smooth behavior consistent with the conventional t-channel Delta Delta process. The d pi(+)pi(-) data are very well reproduced by combining the data for isovector and isoscalar contributions, if the kinematical consequences of the isospin violation due to different masses for charged and neutral pions are taken into account.

Published
2013
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121. Search for eta-mesic He-4 with the WASA-at-COSY detector

Author

Adlarson, Patrik, Augustyniak, W., Bardan, W., Bashkanov, M., Bednarski, T., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calén, Hans, Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell, Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, Carl-Oscar, Hauenstein, F., Heijkenskjöld, Lena, Hejny, V., Hinterberger, F., Hodana, M., Hoistad, Bo, Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kistryn, S., Klaja, J., Kleines, H., Klos, B., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Li, L., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Nandi, B. K., Niedzwiecki, S., Ohm, H., Ozerianska, I., del Rio, E. Perez, Plucinski, P., Podkopal, P., Prasuhn, D., Pricking, A., Pszczel, Damian, Pysz, K., Pyszniak, Andrzej, Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schadmand, S., Schmidt, A., Sefzick, T., Serdyuk, V., Shah, N., Siemaszko, M., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Tolba, T., Trzcinski, A., Varma, R., Vlasov, P., Wagner, G. J., Weglorz, W., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yuan, X., Yurev, L., Zabierowski, J., Zheng, C., Zielinski, M. J., Zipper, W., Zlomanczuk, Jozef, Zupranski, P., Zurek, M., Adlarson, Patrik, Augustyniak, W., Bardan, W., Bashkanov, M., Bednarski, T., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calén, Hans, Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell, Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, Carl-Oscar, Hauenstein, F., Heijkenskjöld, Lena, Hejny, V., Hinterberger, F., Hodana, M., Hoistad, Bo, Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kistryn, S., Klaja, J., Kleines, H., Klos, B., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Li, L., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Nandi, B. K., Niedzwiecki, S., Ohm, H., Ozerianska, I., del Rio, E. Perez, Plucinski, P., Podkopal, P., Prasuhn, D., Pricking, A., Pszczel, Damian, Pysz, K., Pyszniak, Andrzej, Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schadmand, S., Schmidt, A., Sefzick, T., Serdyuk, V., Shah, N., Siemaszko, M., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Tolba, T., Trzcinski, A., Varma, R., Vlasov, P., Wagner, G. J., Weglorz, W., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yuan, X., Yurev, L., Zabierowski, J., Zheng, C., Zielinski, M. J., Zipper, W., Zlomanczuk, Jozef, Zupranski, P., and Zurek, M.

Abstract

An exclusive measurement of the excitation function for the dd -> (3)Hep pi(-) reaction was performed at the Cooler Synchrotron COSY-Julich with the WASA-at-COSY detection system. The data were taken during a slow acceleration of the beam from 2.185 to 2.400 GeV/c crossing the kinematic threshold for the eta-meson production in the dd -> He-4 eta reaction at 2.336 GeV/c. The corresponding excess energy with respect to the He-4-eta system varied from -51.4 to 22 MeV. The integrated luminosity in the experiment was determined using the dd -> (3)Hen reaction. The shape of the excitation function for the dd -> (3)Hep pi(-) reaction was examined. No signal of the He-4-eta bound state was observed. An upper limit for the cross section for the bound state formation and decay in the process dd -> (He-4-eta)(bound) -> (3)Hep pi(-) was determined on the 90% confidence level and it varies from 20 to 27 nb for the bound state width ranging from 5 to 35 MeV, respectively.

Published
2013
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122. Investigation of the dd -> (3)Hen pi(0) reaction with the FZ Julich WASA-at-COSY facility

Author

Adlarson, Patrik, Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calén, Hans, Ciepal, I., Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell E. I., Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, Carl-Oscar, Hanhart, C., Hauenstein, F., Heijkenskjöld, Lena, Hejny, V., Hinterberger, F., Hodana, M., Höistad, Bo, Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kirillov, D. A., Kistryn, S., Klaja, J., Kleines, H., Klos, B., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Li, L., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Nandi, B. K., Ohm, H., Ozerianska, I., del Rio, E. Perez, Piskunov, N. M., Plucinski, P., Podkopal, P., Prasuhn, D., Pricking, A., Pszczel, Damian, Pysz, K., Pyszniak, Andrzej, Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schmidt, A., Schadmand, S., Sefzick, T., Serdyuk, V., Shah, N., Siemaszko, M., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Tolba, T., Trzcinski, A., Varma, R., Wagner, G. J., Weglorz, W., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yuan, X., Zabierowski, J., Zheng, C., Zielinski, M. J., Zipper, W., Zlomanczuk, Josef, Zupranski, P., Zurek, M., Adlarson, Patrik, Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calén, Hans, Ciepal, I., Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell E. I., Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, Carl-Oscar, Hanhart, C., Hauenstein, F., Heijkenskjöld, Lena, Hejny, V., Hinterberger, F., Hodana, M., Höistad, Bo, Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kirillov, D. A., Kistryn, S., Klaja, J., Kleines, H., Klos, B., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Li, L., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Nandi, B. K., Ohm, H., Ozerianska, I., del Rio, E. Perez, Piskunov, N. M., Plucinski, P., Podkopal, P., Prasuhn, D., Pricking, A., Pszczel, Damian, Pysz, K., Pyszniak, Andrzej, Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schmidt, A., Schadmand, S., Sefzick, T., Serdyuk, V., Shah, N., Siemaszko, M., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Tolba, T., Trzcinski, A., Varma, R., Wagner, G. J., Weglorz, W., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yuan, X., Zabierowski, J., Zheng, C., Zielinski, M. J., Zipper, W., Zlomanczuk, Josef, Zupranski, P., and Zurek, M.

Abstract

An exclusive measurement of the dd -> (3)Hen pi(0) reaction was carried out at a beam momentum of p(d) = 1.2 GeV/c using the WASA-at-COSY facility. Information on the total cross section as well as differential distributions was obtained. The data are described by a phenomenological approach based on a combination of a quasifree model and a partial wave expansion for the three-body reaction. The total cross section is found to be sigma(tot) = ( 2.89 +/- 0.01(stat) +/- 0.06(sys) +/- 0.29(norm)) mu b. The contribution of the quasifree processes ( with the beam or target neutron being a spectator) accounts for 38% of the total cross section and dominates the differential distributions in specific regions of phase space. The remaining part of the cross section can be described by a partial wave decomposition indicating the significance of p-wave contributions in the final state.

Published
2013
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123. Measurement of the pn -> pp pi(0)pi(-) reaction in search for the recently observed resonance structure in d pi(0)pi(0) and d pi(+)pi(-) systems

Author

Adlarson, Patrik, Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calén, Hans, Ciepal, I., Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell E. I., Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, Carl-Oscar, Hauenstein, F., Heijkenskjöld, Lena, Hejny, V., Hinterberger, F., Hodana, M., Höistad, Bo, Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kirillov, D. A., Kistryn, S., Klaja, J., Kleines, H., Klos, B., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Li, L., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Nandi, B. K., Ohm, H., Ozerianska, I., del Rio, E. Perez, Piskunov, N. M., Plucinski, P., Podkopal, P., Prasuhn, D., Pricking, A., Pszczel, Damian, Pysz, K., Pyszniak, Andrzej, Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schmidt, A., Schadmand, S., Sefzick, T., Serdyuk, V., Shah, N., Siemaszko, M., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Tolba, T., Trzcinski, A., Varma, R., Wagner, G. J., Eglorz, W. W., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yuan, X., Zabierowski, J., Zheng, C., Zielinski, M. J., Zipper, W., Zlomanczuk, Jozef, Zupranski, P., Zurek, M., Adlarson, Patrik, Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F. S., Berlowski, M., Bhatt, H., Buescher, M., Calén, Hans, Ciepal, I., Clement, H., Coderre, D., Czerwinski, E., Demmich, K., Doroshkevich, E., Engels, R., Erven, W., Eyrich, W., Fedorets, P., Foehl, K., Fransson, Kjell E. I., Goldenbaum, F., Goslawski, P., Goswami, A., Grigoryev, K., Gullström, Carl-Oscar, Hauenstein, F., Heijkenskjöld, Lena, Hejny, V., Hinterberger, F., Hodana, M., Höistad, Bo, Jany, A., Jany, B. R., Jarczyk, L., Johansson, Tord, Kamys, B., Kemmerling, G., Khan, F. A., Khoukaz, A., Kirillov, D. A., Kistryn, S., Klaja, J., Kleines, H., Klos, B., Krapp, M., Krzemien, W., Kulessa, P., Kupsc, Andrzej, Lalwani, K., Lersch, D., Li, L., Lorentz, B., Magiera, A., Maier, R., Marciniewski, Pawel, Marianski, B., Mikirtychiants, M., Morsch, H. -P, Moskal, P., Nandi, B. K., Ohm, H., Ozerianska, I., del Rio, E. Perez, Piskunov, N. M., Plucinski, P., Podkopal, P., Prasuhn, D., Pricking, A., Pszczel, Damian, Pysz, K., Pyszniak, Andrzej, Redmer, C. F., Ritman, J., Roy, A., Rudy, Z., Sawant, S., Schmidt, A., Schadmand, S., Sefzick, T., Serdyuk, V., Shah, N., Siemaszko, M., Siudak, R., Skorodko, T., Skurzok, M., Smyrski, J., Sopov, V., Stassen, R., Stepaniak, J., Stephan, E., Sterzenbach, G., Stockhorst, H., Stroeher, H., Szczurek, A., Tolba, T., Trzcinski, A., Varma, R., Wagner, G. J., Eglorz, W. W., Wolke, Magnus, Wronska, A., Wuestner, P., Wurm, P., Yamamoto, A., Yuan, X., Zabierowski, J., Zheng, C., Zielinski, M. J., Zipper, W., Zlomanczuk, Jozef, Zupranski, P., and Zurek, M.

Abstract

Exclusive measurements of the quasifree pn -> pp pi(0)pi(-) reaction have been performed by means of pd collisions at T-p = 1.2 GeV using the wide angle shower apparatus (WASA) detector setup at the cooler synchrotron COSY (Institut fur Kernphysik, Julich). Total and differential cross sections have been obtained covering the energy region root s = (2.35-2.46) GeV, which includes the region of the ABC effect and its associated resonance structure. NoABCeffect, i.e., low-mass enhancement is found in the pi(0)pi(-) -invariant mass spectrum, in agreement with the constraint from Bose statistics that the isovector pion pair can not be in relative s wave. At the upper end of the covered energy region t-channel processes for Roper, Delta(1600) and Delta Delta excitations provide a reasonable description of the data, but at low energies the measured cross sections are much larger than predicted by such processes. Adding a resonance amplitude for the resonance at m = 2.37 GeV with Gamma = 70 MeV and I (J(P)) = 0(3(+)) observed recently in pn -> d pi(0)pi(0) and pn -> d pi(+)pi(-) reactions leads to an agreement with the data also at low energies.

Published
2013
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126. Measurement of thepn→ppπ0π−reaction in search for the recently observed resonance structure indπ0π0anddπ+π−systems

Author

Adlarson, P., primary, Augustyniak, W., additional, Bardan, W., additional, Bashkanov, M., additional, Bergmann, F. S., additional, Berłowski, M., additional, Bhatt, H., additional, Büscher, M., additional, Calén, H., additional, Ciepał, I., additional, Clement, H., additional, Coderre, D., additional, Czerwiński, E., additional, Demmich, K., additional, Doroshkevich, E., additional, Engels, R., additional, Erven, W., additional, Eyrich, W., additional, Fedorets, P., additional, Föhl, K., additional, Fransson, K., additional, Goldenbaum, F., additional, Goslawski, P., additional, Goswami, A., additional, Grigoryev, K., additional, Gullström, C.-O., additional, Hauenstein, F., additional, Heijkenskjöld, L., additional, Hejny, V., additional, Hinterberger, F., additional, Hodana, M., additional, Höistad, B., additional, Jany, A., additional, Jany, B. R., additional, Jarczyk, L., additional, Johansson, T., additional, Kamys, B., additional, Kemmerling, G., additional, Khan, F. A., additional, Khoukaz, A., additional, Kirillov, D. A., additional, Kistryn, S., additional, Klaja, J., additional, Kleines, H., additional, Kłos, B., additional, Krapp, M., additional, Krzemień, W., additional, Kulessa, P., additional, Kupść, A., additional, Lalwani, K., additional, Lersch, D., additional, Li, L., additional, Lorentz, B., additional, Magiera, A., additional, Maier, R., additional, Marciniewski, P., additional, Mariański, B., additional, Mikirtychiants, M., additional, Morsch, H.-P., additional, Moskal, P., additional, Nandi, B. K., additional, Ohm, H., additional, Ozerianska, I., additional, Perez del Rio, E., additional, Piskunov, N. M., additional, Pluciński, P., additional, Podkopał, P., additional, Prasuhn, D., additional, Pricking, A., additional, Pszczel, D., additional, Pysz, K., additional, Pyszniak, A., additional, Redmer, C. F., additional, Ritman, J., additional, Roy, A., additional, Rudy, Z., additional, Sawant, S., additional, Schmidt, A., additional, Schadmand, S., additional, Sefzick, T., additional, Serdyuk, V., additional, Shah, N., additional, Siemaszko, M., additional, Siudak, R., additional, Skorodko, T., additional, Skurzok, M., additional, Smyrski, J., additional, Sopov, V., additional, Stassen, R., additional, Stepaniak, J., additional, Stephan, E., additional, Sterzenbach, G., additional, Stockhorst, H., additional, Ströher, H., additional, Szczurek, A., additional, Tolba, T., additional, Trzciński, A., additional, Varma, R., additional, Wagner, G. J., additional, Węglorz, W., additional, Wolke, M., additional, Wrońska, A., additional, Wüstner, P., additional, Wurm, P., additional, Yamamoto, A., additional, Yuan, X., additional, Zabierowski, J., additional, Zheng, C., additional, Zieliński, M. J., additional, Zipper, W., additional, Złomańczuk, J., additional, Żuprański, P., additional, and Żurek, M., additional

Published
2013
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127. Search for a dark photon in the π0→e+e−γ decay

Author

Adlarson, P., primary, Augustyniak, W., additional, Bardan, W., additional, Bashkanov, M., additional, Bergmann, F.S., additional, Berłowski, M., additional, Bhatt, H., additional, Bondar, A., additional, Büscher, M., additional, Calén, H., additional, Ciepał, I., additional, Clement, H., additional, Coderre, D., additional, Czerwiński, E., additional, Demmich, K., additional, Doroshkevich, E., additional, Engels, R., additional, Erven, W., additional, Eyrich, W., additional, Fedorets, P., additional, Föhl, K., additional, Fransson, K., additional, Goldenbaum, F., additional, Goslawski, P., additional, Goswami, A., additional, Grigoryev, K., additional, Gullström, C.-O., additional, Hauenstein, F., additional, Heijkenskjöld, L., additional, Hejny, V., additional, Hinterberger, F., additional, Hodana, M., additional, Höistad, B., additional, Jany, A., additional, Jany, B.R., additional, Jarczyk, L., additional, Johansson, T., additional, Kamys, B., additional, Kemmerling, G., additional, Khan, F.A., additional, Khoukaz, A., additional, Kistryn, S., additional, Klaja, J., additional, Kleines, H., additional, Kirillov, D.A., additional, Kłos, B., additional, Krapp, M., additional, Krzemień, W., additional, Kulessa, P., additional, Kupść, A., additional, Kuzmin, A., additional, Lalwani, K., additional, Lersch, D., additional, Li, L., additional, Lorentz, B., additional, Magiera, A., additional, Maier, R., additional, Marciniewski, P., additional, Mariański, B., additional, Meißner, U.-G., additional, Mikirtychiants, M., additional, Morsch, H.-P., additional, Moskal, P., additional, Nandi, B.K., additional, Ohm, H., additional, Ozerianska, I., additional, Perez del Rio, E., additional, Piskunov, N.M., additional, Pluciński, P., additional, Podkopał, P., additional, Prasuhn, D., additional, Pricking, A., additional, Pszczel, D., additional, Pysz, K., additional, Pyszniak, A., additional, Redmer, C.F., additional, Ritman, J., additional, Roy, A., additional, Rudy, Z., additional, Sawant, S., additional, Schadmand, S., additional, Schmidt, A., additional, Sefzick, T., additional, Serdyuk, V., additional, Shah, N., additional, Shwartz, B., additional, Siemaszko, M., additional, Siudak, R., additional, Skorodko, T., additional, Skurzok, M., additional, Smyrski, J., additional, Sopov, V., additional, Stassen, R., additional, Stepaniak, J., additional, Stephan, E., additional, Sterzenbach, G., additional, Stockhorst, H., additional, Ströher, H., additional, Szczurek, A., additional, Tolba, T., additional, Trzciński, A., additional, Varma, R., additional, Wagner, G.J., additional, Wȩglorz, W., additional, Wirzba, A., additional, Wolke, M., additional, Wrońska, A., additional, Wüstner, P., additional, Wurm, P., additional, Yamamoto, A., additional, Zabierowski, J., additional, Zieliński, M.J., additional, Zipper, W., additional, Złomańczuk, J., additional, Żuprański, P., additional, and Żurek, M., additional

Published
2013
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128. Investigation of thedd→3Henπ0reaction with the FZ Jülich WASA-at-COSY facility

Author

Adlarson, P., primary, Augustyniak, W., additional, Bardan, W., additional, Bashkanov, M., additional, Bergmann, F. S., additional, Berłowski, M., additional, Bhatt, H., additional, Büscher, M., additional, Calén, H., additional, Ciepał, I., additional, Clement, H., additional, Coderre, D., additional, Czerwiński, E., additional, Demmich, K., additional, Doroshkevich, E., additional, Engels, R., additional, Erven, W., additional, Eyrich, W., additional, Fedorets, P., additional, Föhl, K., additional, Fransson, K., additional, Goldenbaum, F., additional, Goslawski, P., additional, Goswami, A., additional, Grigoryev, K., additional, Gullström, C.-O., additional, Hanhart, C., additional, Hauenstein, F., additional, Heijkenskjöld, L., additional, Hejny, V., additional, Hinterberger, F., additional, Hodana, M., additional, Höistad, B., additional, Jany, A., additional, Jany, B. R., additional, Jarczyk, L., additional, Johansson, T., additional, Kamys, B., additional, Kemmerling, G., additional, Khan, F. A., additional, Khoukaz, A., additional, Kirillov, D. A., additional, Kistryn, S., additional, Klaja, J., additional, Kleines, H., additional, Kłos, B., additional, Krapp, M., additional, Krzemień, W., additional, Kulessa, P., additional, Kupść, A., additional, Lalwani, K., additional, Lersch, D., additional, Li, L., additional, Lorentz, B., additional, Magiera, A., additional, Maier, R., additional, Marciniewski, P., additional, Mariański, B., additional, Mikirtychiants, M., additional, Morsch, H.-P., additional, Moskal, P., additional, Nandi, B. K., additional, Ohm, H., additional, Ozerianska, I., additional, Perez del Rio, E., additional, Piskunov, N. M., additional, Pluciński, P., additional, Podkopał, P., additional, Prasuhn, D., additional, Pricking, A., additional, Pszczel, D., additional, Pysz, K., additional, Pyszniak, A., additional, Redmer, C. F., additional, Ritman, J., additional, Roy, A., additional, Rudy, Z., additional, Sawant, S., additional, Schmidt, A., additional, Schadmand, S., additional, Sefzick, T., additional, Serdyuk, V., additional, Shah, N., additional, Siemaszko, M., additional, Siudak, R., additional, Skorodko, T., additional, Skurzok, M., additional, Smyrski, J., additional, Sopov, V., additional, Stassen, R., additional, Stepaniak, J., additional, Stephan, E., additional, Sterzenbach, G., additional, Stockhorst, H., additional, Ströher, H., additional, Szczurek, A., additional, Tolba, T., additional, Trzciński, A., additional, Varma, R., additional, Wagner, G. J., additional, Węglorz, W., additional, Wolke, M., additional, Wrońska, A., additional, Wüstner, P., additional, Wurm, P., additional, Yamamoto, A., additional, Yuan, X., additional, Zabierowski, J., additional, Zheng, C., additional, Zieliński, M. J., additional, Zipper, W., additional, Złomańczuk, J., additional, Żuprański, P., additional, and Żurek, M., additional

Published
2013
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130. Isospin decomposition of the basic double-pionic fusion in the region of the ABC effect

Author

Adlarson, P., primary, Augustyniak, W., additional, Bardan, W., additional, Bashkanov, M., additional, Bednarski, T., additional, Bergmann, F.S., additional, Berłowski, M., additional, Bhatt, H., additional, Büscher, M., additional, Calén, H., additional, Clement, H., additional, Coderre, D., additional, Czerwiński, E., additional, Demmich, K., additional, Doroshkevich, E., additional, Engels, R., additional, Erven, W., additional, Eyrich, W., additional, Fedorets, P., additional, Föhl, K., additional, Fransson, K., additional, Goldenbaum, F., additional, Goslawski, P., additional, Goswami, A., additional, Grigoryev, K., additional, Gullström, C.-O., additional, Hauenstein, F., additional, Heijkenskjöld, L., additional, Hejny, V., additional, Hinterberger, F., additional, Hodana, M., additional, Höistad, B., additional, Jany, A., additional, Jany, B.R., additional, Jarczyk, L., additional, Johansson, T., additional, Kamys, B., additional, Kemmerling, G., additional, Khan, F.A., additional, Khoukaz, A., additional, Kistryn, S., additional, Klaja, J., additional, Kleines, H., additional, Kłos, B., additional, Krapp, M., additional, Krzemień, W., additional, Kulessa, P., additional, Kupść, A., additional, Lalwani, K., additional, Lersch, D., additional, Li, L., additional, Lorentz, B., additional, Magiera, A., additional, Maier, R., additional, Marciniewski, P., additional, Mariański, B., additional, Mikirtychiants, M., additional, Morsch, H.-P., additional, Moskal, P., additional, Nandi, B.K., additional, Niedźwiecki, S., additional, Ohm, H., additional, Ozerianska, I., additional, Perez del Rio, E., additional, Pluciński, P., additional, Podkopał, P., additional, Prasuhn, D., additional, Pricking, A., additional, Pszczel, D., additional, Pysz, K., additional, Pyszniak, A., additional, Redmer, C.F., additional, Ritman, J., additional, Roy, A., additional, Rudy, Z., additional, Sawant, S., additional, Schadmand, S., additional, Schmidt, A., additional, Sefzick, T., additional, Serdyuk, V., additional, Shah, N., additional, Siemaszko, M., additional, Siudak, R., additional, Skorodko, T., additional, Skurzok, M., additional, Smyrski, J., additional, Sopov, V., additional, Stassen, R., additional, Stepaniak, J., additional, Stephan, E., additional, Sterzenbach, G., additional, Stockhorst, H., additional, Ströher, H., additional, Szczurek, A., additional, Tolba, T., additional, Trzciński, A., additional, Varma, R., additional, Vlasov, P., additional, Wagner, G.J., additional, Węglorz, W., additional, Wolke, M., additional, Wrońska, A., additional, Wüstner, P., additional, Wurm, P., additional, Yamamoto, A., additional, Yuan, X., additional, Yurev, L., additional, Zabierowski, J., additional, Zheng, C., additional, Zieliński, M.J., additional, Zipper, W., additional, Złomańczuk, J., additional, Żuprański, P., additional, and Żurek, M., additional

Published
2013
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131. Search forη-mesic4He with the WASA-at-COSY detector

Author

Adlarson, P., primary, Augustyniak, W., additional, Bardan, W., additional, Bashkanov, M., additional, Bednarski, T., additional, Bergmann, F. S., additional, Berłowski, M., additional, Bhatt, H., additional, Büscher, M., additional, Calén, H., additional, Clement, H., additional, Coderre, D., additional, Czerwiński, E., additional, Demmich, K., additional, Doroshkevich, E., additional, Engels, R., additional, Erven, W., additional, Eyrich, W., additional, Fedorets, P., additional, Föhl, K., additional, Fransson, K., additional, Goldenbaum, F., additional, Goslawski, P., additional, Goswami, A., additional, Grigoryev, K., additional, Gullström, C.–O., additional, Hauenstein, F., additional, Heijkenskjöld, L., additional, Hejny, V., additional, Hinterberger, F., additional, Hodana, M., additional, Höistad, B., additional, Jany, A., additional, Jany, B. R., additional, Jarczyk, L., additional, Johansson, T., additional, Kamys, B., additional, Kemmerling, G., additional, Khan, F. A., additional, Khoukaz, A., additional, Kistryn, S., additional, Klaja, J., additional, Kleines, H., additional, Kłos, B., additional, Krapp, M., additional, Krzemień, W., additional, Kulessa, P., additional, Kupść, A., additional, Lalwani, K., additional, Lersch, D., additional, Li, L., additional, Lorentz, B., additional, Magiera, A., additional, Maier, R., additional, Marciniewski, P., additional, Mariański, B., additional, Mikirtychiants, M., additional, Morsch, H.–P., additional, Moskal, P., additional, Nandi, B. K., additional, Niedźwiecki, S., additional, Ohm, H., additional, Ozerianska, I., additional, Perez del Rio, E., additional, Pluciński, P., additional, Podkopał, P., additional, Prasuhn, D., additional, Pricking, A., additional, Pszczel, D., additional, Pysz, K., additional, Pyszniak, A., additional, Redmer, C. F., additional, Ritman, J., additional, Roy, A., additional, Rudy, Z., additional, Sawant, S., additional, Schadmand, S., additional, Schmidt, A., additional, Sefzick, T., additional, Serdyuk, V., additional, Shah, N., additional, Siemaszko, M., additional, Siudak, R., additional, Skorodko, T., additional, Skurzok, M., additional, Smyrski, J., additional, Sopov, V., additional, Stassen, R., additional, Stepaniak, J., additional, Stephan, E., additional, Sterzenbach, G., additional, Stockhorst, H., additional, Ströher, H., additional, Szczurek, A., additional, Tolba, T., additional, Trzciński, A., additional, Varma, R., additional, Vlasov, P., additional, Wagner, G. J., additional, Węglorz, W., additional, Wolke, M., additional, Wrońska, A., additional, Wüstner, P., additional, Wurm, P., additional, Yamamoto, A., additional, Yuan, X., additional, Yurev, L., additional, Zabierowski, J., additional, Zheng, C., additional, Zieliński, M. J., additional, Zipper, W., additional, Złomańczuk, J., additional, Żuprański, P., additional, and Żurek, M., additional

Published
2013
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144. Influence of N∗-resonances on hyperon production in the channel pp→K+Λp at 2.95, 3.20 and 3.30 GeV/c beam momentum

Author

Abd El-Samad, S., primary, Abdel-Bary, M., additional, Brinkmann, K., additional, Clement, H., additional, Dietrich, J., additional, Dorochkevitch, E., additional, Dshemuchadse, S., additional, Ehrhardt, K., additional, Erhardt, A., additional, Eyrich, W., additional, Fanara, C., additional, Filges, D., additional, Filippi, A., additional, Freiesleben, H., additional, Fritsch, M., additional, Gast, W., additional, Georgi, J., additional, Gillitzer, A., additional, Gottwald, J., additional, Hauffe, J., additional, Hesselbarth, D., additional, Jäger, H., additional, Jakob, B., additional, Jäkel, R., additional, Karsch, L., additional, Kilian, K., additional, Koch, H., additional, Krapp, M., additional, Kreß, J., additional, Kuhlmann, E., additional, Lehmann, A., additional, Marcello, S., additional, Marwinski, S., additional, Mauro, S., additional, Metzger, A., additional, Meyer, W., additional, Michel, P., additional, Möller, K., additional, Mörtel, H., additional, Morsch, H.P., additional, Naumann, L., additional, Paul, N., additional, Pinna, L., additional, Pizzolotto, C., additional, Plettner, C., additional, Reimann, S., additional, Richter, M., additional, Ritman, J., additional, Roderburg, E., additional, Schamlott, A., additional, Schönmeier, P., additional, Schulte-Wissermann, M., additional, Schroeder, W., additional, Sefzick, T., additional, Steinke, M., additional, Stinzing, F., additional, Sun, G., additional, Teufel, A., additional, Ullrich, W., additional, Wächter, J., additional, Wagner, G.J., additional, Wagner, M., additional, Wenzel, R., additional, Wilms, A., additional, Wintz, P., additional, Wirth, S., additional, Wüstner, P., additional, and Zupranski, P., additional

Published
2010
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