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1. Nuclear astrophysics with radioactive ions at FAIR

Author: Reifarth, R., Altstadt, S., Göbel, K., Heftrich, T., Heil, M., Koloczek, A., Langer, C., Plag, R., Pohl, M., Sonnabend, K., Weigand, M., Adachi, T., Aksouh, F., Al-Khalili, J., AlGarawi, M., AlGhamdi, S., Alkhazov, G., Alkhomashi, N., Alvarez-Pol, H., Alvarez-Rodriguez, R., Andreev, V., Andrei, B., Atar, L., Aumann, T., Avdeichikov, V., Bacri, C., Bagchi, S., Barbieri, C., Beceiro, S., Beck, C., Beinrucker, C., Belier, G., Bemmerer, D., Bendel, M., Benlliure, J., Benzoni, G., Berjillos, R., Bertini, D., Bertulani, C., Bishop, S., Blasi, N., Bloch, T., Blumenfeld, Y., Bonaccorso, A., Boretzky, K., Botvina, A., Boudard, A., Boutachkov, P., Boztosun, I., Bracco, A., Brambilla, S., Monago, J. Briz, Caamano, M., Caesar, C., Camera, F., Casarejos, E., Catford, W., Cederkall, J., Cederwall, B., Chartier, M., Chatillon, A., Cherciu, M., Chulkov, L., Coleman-Smith, P., Cortina-Gil, D., Crespi, F., Crespo, R., Cresswell, J., Csatlós, M., Déchery, F., Davids, B., Davinson, T., Derya, V., Detistov, P., Fernandez, P. Diaz, DiJulio, D., Dmitry, S., Doré, D., Duenas, J., Dupont, E., Egelhof, P., Egorova, I., Elekes, Z., Enders, J., Endres, J., Ershov, S., Ershova, O., Fernandez-Dominguez, B., Fetisov, A., Fiori, E., Fomichev, A., Fonseca, M., Fraile, L., Freer, M., Friese, J., Borge, M. G., Redondo, D. Galaviz, Gannon, S., Garg, U., Gasparic, I., Gasques, L., Gastineau, B., Geissel, H., Gernhäuser, R., Ghosh, T., Gilbert, M., Glorius, J., Golubev, P., Gorshkov, A., Gourishetty, A., Grigorenko, L., Gulyas, J., Haiduc, M., Hammache, F., Harakeh, M., Hass, M., Heine, M., Hennig, A., Henriques, A., Herzberg, R., Holl, M., Ignatov, A., Ignatyuk, A., Ilieva, S., Ivanov, M., Iwasa, N., Jakobsson, B., Johansson, H., Jonson, B., Joshi, P., Junghans, A., Jurado, B., Körner, G., Kalantar, N., Kanungo, R., Kelic-Heil, A., Kezzar, K., Khan, E., Khanzadeev, A., Kiselev, O., Kogimtzis, M., Körper, D., Kräckmann, S., Kröll, T., Krücken, R., Krasznahorkay, A., Kratz, J., Kresan, D., Krings, T., Krumbholz, A., Krupko, S., Kulessa, R., Kumar, S., Kurz, N., Kuzmin, E., Labiche, M., Langanke, K., Lazarus, I., Bleis, T. Le, Lederer, C., Lemasson, A., Lemmon, R., Liberati, V., Litvinov, Y., Löher, B., Herraiz, J. Lopez, Münzenberg, G., Machado, J., Maev, E., Mahata, K., Mancusi, D., Marganiec, J., Perez, M. Martinez, Marusov, V., Mengoni, D., Million, B., Morcelle, V., Moreno, O., Movsesyan, A., Nacher, E., Najafi, M., Nakamura, T., Naqvi, F., Nikolski, E., Nilsson, T., Nociforo, C., Nolan, P., Novatsky, B., Nyman, G., Ornelas, A., Palit, R., Pandit, S., Panin, V., Paradela, C., Parkar, V., Paschalis, S., Pawłowski, P., Perea, A., Pereira, J., Petrache, C., Petri, M., Pickstone, S., Pietralla, N., Pietri, S., Pivovarov, Y., Potlog, P., Prokofiev, A., Rastrepina, G., Rauscher, T., Ribeiro, G., Ricciardi, M., Richter, A., Rigollet, C., Riisager, K., Rios, A., Ritter, C., Frutos, T. Rodríguez, Vignote, J. Rodriguez, Röder, M., Romig, C., Rossi, D., Roussel-Chomaz, P., Rout, P., Roy, S., Söderström, P., Sarkar, M. Saha, Sakuta, S., Salsac, M., Sampson, J., Saez, J. Sanchez del Rio, Rosado, J. Sanchez, Sanjari, S., Sarriguren, P., Sauerwein, A., Savran, D., Scheidenberger, C., Scheit, H., Schmidt, S., Schmitt, C., Schnorrenberger, L., Schrock, P., Schwengner, R., Seddon, D., Sherrill, B., Shrivastava, A., Sidorchuk, S., Silva, J., Simon, H., Simpson, E., Singh, P., Slobodan, D., Sohler, D., Spieker, M., Stach, D., Stan, E., Stanoiu, M., Stepantsov, S., Stevenson, P., Strieder, F., Stuhl, L., Suda, T., Sümmerer, K., Streicher, B., Taieb, J., Takechi, M., Tanihata, I., Taylor, J., Tengblad, O., Ter-Akopian, G., Terashima, S., Teubig, P., Thies, R., Thoennessen, M., Thomas, T., Thornhill, J., Thungstrom, G., Timar, J., Togano, Y., Tomohiro, U., Tornyi, T., Tostevin, J., Townsley, C., Trautmann, W., Trivedi, T., Typel, S., Uberseder, E., Udias, J., Uesaka, T., Uvarov, L., Vajta, Z., Velho, P., Vikhrov, V., Volknandt, M., Volkov, V., von Neumann-Cosel, P., von Schmid, M., Wagner, A., Wamers, F., Weick, H., Wells, D., Westerberg, L., Wieland, O., Wiescher, M., Wimmer, C., Wimmer, K., Winfield, J. S., Winkel, M., Woods, P., Wyss, R., Yakorev, D., Yavor, M., Cardona, J. Zamora, Zartova, I., Zerguerras, T., Zgura, I., Zhdanov, A., Zhukov, M., Zieblinski, M., Zilges, A., and Zuber, K.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Nuclear Experiment
Abstract: The nucleosynthesis of elements beyond iron is dominated by neutron captures in the s and r processes. However, 32 stable, proton-rich isotopes cannot be formed during those processes, because they are shielded from the s-process flow and r-process beta-decay chains. These nuclei are attributed to the p and rp process. For all those processes, current research in nuclear astrophysics addresses the need for more precise reaction data involving radioactive isotopes. Depending on the particular reaction, direct or inverse kinematics, forward or time-reversed direction are investigated to determine or at least to constrain the desired reaction cross sections. The Facility for Antiproton and Ion Research (FAIR) will offer unique, unprecedented opportunities to investigate many of the important reactions. The high yield of radioactive isotopes, even far away from the valley of stability, allows the investigation of isotopes involved in processes as exotic as the r or rp processes., Comment: Invited Talk given at the Conference Nuclear Physice in Astrophysics VI (NPA6), Lisbon, Portugal, May 19-24 2013. To appear in the NPA6 Proceedings in Journal of Physics: Conference Series (JPCS)
Published: 2013
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2. 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: Nuclear Experiment
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., Comment: Shorter version accepted to EPJA 10 pages 14 figures
Published: 2010
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3. 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: 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., Comment: 10 pages, 5 figures
Published: 2009
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4. 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: 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., Comment: 20 pages including 18 figures
Published: 2009
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5. 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 Experiment
Abstract: The production of $\omega$ mesons in the $pd \to{}^3$He$ \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 $\omega$ 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., Comment: 10 pages, 13 figures
Published: 2009
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6. Double-Pionic Fusion of Nuclear Systems and the ABCEffect -- Aproaching a Puzzle by Exclusive and Kinematically Complete Measurements

Author: Bashkanov, M., Bargholtz, C., Berlowski, M., Bogoslawsky, D., Calen, H., Clement, H., Demiroers, L., Doroshkevich, E., Duniec, D., Ekstrom, C., Fransson, K., Geren, L., Gustafsson, L., Hoistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Khakimova, O., Keleta, S., Koch, I., Kren, F., Kullander, S., Kupsc, A., Lindberg, K., Marciniewski, P., Meier, R., Morosov, B., Pauly, C., Pettersson, H., Petukhov, Y., Povtorejko, A., Pricking, 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., Zabierowski, J., Zartova, I., and Zlomanczuk, J.
Subjects: Nuclear Experiment
Abstract: The ABC effect - a puzzling low-mass enhancement in the $\pi\pi$ invariant mass spectrum - is well-known from inclusive measurements of two-pion production in nuclear fusion reactions. Here we report on first exclusive and kinematically complete measurements of the most basic double pionic fusion reaction $pn \to d \pi^0\pi^0$ at 1.03 and 1.35 GeV. The measurements, which have been carried out at CELSIUS-WASA, reveal the ABC effect to be a $(\pi\pi)_{I=L=0}$ channel phenomenon associated with both a resonance-like energy dependence in the integral cross section and the formation of a $\Delta\Delta$ system in the intermediate state. A corresponding simple s-channel resonance ansatz provides a surprisingly good description of the data.
Published: 2008
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7. 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: 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., Comment: 11 pages, 4 figures
Published: 2008
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8. The WASA Detector Facility at CELSIUS

Author: Bargholtz, Chr., Bashkanov, M., Berłowski, M., Bondar, A., Bogoslawsky, D., Brodowski, W., Brudvik, J., Calén, H., Capellaro, F., Chilingarov, A., Clement, H., Comfort, J., Demirörs, L., Ekström, C., Fransson, K., Fridén, C. -J., Gerén, L., Gornov, M., Grebenev, V., Greiff, J., Gurov, Y., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, A., Johansson, T., Keleta, S., Khakimova, O., Khoukaz, A., Kilian, K., Kimura, N., Koch, I., Kolachev, G., Kren, F., Kullander, S., Kupść, A., Kuzmin, A., Kuznetsov, A., Lindberg, K., Marciniewski, P., Meier, R., Messner, O., Morosov, B., Nawrot, A., Nefkens, B. M. K., Norman, G., Oelert, W., Pauly, C., Pettersson, H., Pivovarov, A., Pätzold, J., Petukhov, Y., Povtorejko, A., Reistad, D., Ruber, R. J. M. Y., Sandukovsky, S., Schönning, K., Scobel, W., Sefzick, T., Shafigullin, R., Shwartz, B., Sidorov, V., Skorodko, T., Sopov, V., Starostin, A., Stepaniak, J., Sukhanov, A., Tchernyshev, V., Tegnér, P. -E., Engblom, P. Thörngren, Tikhomirov, V., Toki, H., Turowiecki, A., Wagner, G. J., Wiedner, U., Wilhelmi, Z., Wolke, M., Yamamoto, A., Yamaoka, H., Zabierowski, J., Zartova, I., and Złomańczuk, J.
Subjects: Nuclear Experiment
Abstract: The WASA 4pi multidetector system, aimed at investigating light meson production in light ion collisions and eta meson rare decays at the CELSIUS storage ring in Uppsala is presented. A detailed description of the design, together with the anticipated and achieved performance parameters are given., Comment: 25 pages, 20 figures
Published: 2008
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9. Measurement of eta meson decays into lepton-antilepton pairs

Author: Collaboration, CELSIUS/WASA, Berłowski, M., Bargholtz, Chr., Bashkanov, M., Bogoslawsky, D., Bondar, A., Calén, H., Cappellaro, F., Clement, H., Demirörs, L., Ekström, C., Fransson, K., Gerén, L., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Koch, I., Kullander, S., Kupść, 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., Schönning, K., 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., Wolke, M., Yamamoto, A., Zabierowski, J., Zartova, I., and Złomańczuk, J.
Subjects: High Energy Physics - Experiment
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., Comment: 9 pages, 10 Postscript figures, uses revtex4.sty, revised version after referee comments; conclusions unchanged
Published: 2007
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10. Two-Pion Production in Nucleon-Nucleon Collisions and the ABC-Effect - Approaching a Puzzleby exclusive and Kinematically complete Measurements

Author: Skorodko, T., Bashkanov, M., Bargholtz, C., Bogoslawsky, D., Calen, H., Cappellaro, F., Clement, H., Demiroers, L., Doroshkevich, E., Duniec, D., Ekstrom, C., Fransson, K., Geren, L., 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., Lindberg, K., Marciniewski, P., Martemyanov, B., Meier, R., Morosov, B., Oelert, W., Pauly, C., Pettersson, H., Petukhov, Y., Povtorejko, A., Pricking, A., Ruber, R. J. M. Y., Schonning, K., Scobel, W., Shwartz, B., Sopov, V., Stepaniak, J., Tegner, P. -E., Thorngren-Engholm, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., Zartova, I., and Zlomanczuk, J.
Subjects: Nuclear Experiment
Abstract: The ABC effect - a puzzling low-mass enhancement in the $\pi\pi$ invariant mass spectrum - is known from inclusive measurements of two-pion production in nuclear collisions, where it always showed up, if the participating nucleons fused to a bound nuclear system in the final state. The first exclusive measurements on the ABC effect have been carried out very recently at CELSIUS-WASA for the fusion reactions leading to d, $^3$He and $^4$He nuclei in the final state. The data analyzed so far for the fusion processes to d and $^3$He reveal this effect to be a $\sigma$ channel phenomenon associated with the formation of a strongly attractive $\Delta\Delta$ system. The data for the strictly isospin-selective double-pionic fusion to $^4$He, where we expect the largest effect, are currently still analyzed. All inclusive data on this system are well described by our model, too. This case also constitutes the heaviest nuclear system, where exclusive measurements of double-pionic fusion can be carried out with present-day instruments. Surprisingly, the $pp \to pp\pi^0\pi^0$ reaction in the $\Delta\Delta$ region is observed to also show a ABC-like low-$\pi\pi$ mass enhancement, a phenomenon, which deserves special attention.
Published: 2006

11. Measurement of the eta->pi+pi-e+e- decay branching ratio

Author: Collaboration, CELSIUS-WASA, Bargholtz, Chr., Bashkanov, M., Bogoslawsky, D., Calén, H., Capellaro, F., Clement, H., Demirörs, L., Ekström, C., Fransson, K., Gerén, L., Gustafsson, L., Höistad, 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., Schönning, K., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tchernyshev, V., Tegnér, P. -E., Engblom, P. Thörngren, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., Zartova, I., and Złomańczuk, J.
Subjects: High Energy Physics - Experiment
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., Comment: 10 pages,6 figures revised version
Published: 2006
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12. Properties of the WASA pellet target and a stored intermediate-energy beam

Author: Bargholtz, Chr., Gerén, L., Kupść, A., Laukhin, I.V., Lindberg, K., Shafigullin, R.R., Tegnér, P.-E., and Zartova, I.
Published: 2008
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13. Production of $ \rightarrow$ 3HeX reaction at 1360 and 1450 MeV

Author: Schönning, K., Bargholtz, Chr., Bashkanov, M., Berlowski, 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., Kupsc, 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., Wolke, M., Zabierowski, J., Zartova, I., and Złomanczuk, J.
Published: 2010
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14. Tagging of η mesons using the pd → 3Heη reaction near threshold

Author: Bargholtz, Chr., Gerén, L., Grebenev, V. N., Gurov, Yu. B., Karpukhin, V. S., Laukhin, I. V., Martem’yanov, B. V., Matveev, V. A., Lindberg, K., Sopov, V. S., Tegnér, P. -E., Chernyshev, B. A., Shafigullin, R. R., and Zartova, I.
Published: 2006
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15. A detector system for studying nuclear reactions relevant to Single Event Effects

Author: Murin, Yu., Babain, Yu., Chubarov, M., Tuboltsev, Yu., Pljuschev, V., Zubkov, M., Nomokonov, P., Voronin, A., Merkin, M., Kondratiev, V., Olsson, N., Blomgren, J., Westerberg, L., Ekström, C., Kolozhvari, A., Jäderström, H., Jakobsson, B., Golubev, P., Bargholz, Chr., Gerén, L., Tegnér, P.-E., Zartova, I., Budzanowski, A., Czech, B., Skwirczynska, I., and Tang, H.H.K.
Published: 2007
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16. Coexisting oblate and strongly triaxial structures in 191Pt

Author: Kutsarova, T., Schück, C., Gueorguieva, E., Minkova, A., Zartova, I., Hannachi, F., Korichi, A., and Lopez-Martens, A.
Published: 2005
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17. 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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18. Nuclear astrophysics with radioactive ions at FAIR

Author: Reifarth, R., Altstadt, S., Göbel, K., Heftrich, T., Heil, M., Koloczek, A., Langer, C., Plag, R., Pohl, M., Sonnabend, K., Weigand, M., Adachi, T., Aksouh, F., Al-Khalili, J., Algarawi, M., Alghamdi, S., Alkhazov, G., Alkhomashi, N., Alvarez-Pol, H., Alvarez-Rodriguez, R., Andreev, V., Andrei, B., Atar, L., Aumann, T., Avdeichikov, V., Bacri, C., Bagchi, S., Barbieri, C., Beceiro, S., Beck, C., Beinrucker, C., Belier, G., Bemmerer, D., Bendel, M., Benlliure, J., Benzoni, G., Berjillos, R., Bertini, D., Bertulani, C., Bishop, S., Blasi, N., Bloch, T., Blumenfeld, Y., Bonaccorso, A., Boretzky, K., Botvina, A., Boudard, A., Boutachkov, P., Boztosun, I., Bracco, A., Brambilla, S., Monago, J. B., Caamano, M., Caesar, C., Camera, F., Casarejos, E., Catford, W., Cederkall, J., Cederwall, B., Chartier, M., Chatillon, A., Cherciu, M., Chulkov, L., Coleman-Smith, P., Cortina-Gil, D., Crespi, F., Crespo, R., Cresswell, J., Csatlós, M., Déchery, F., Davids, B., Davinson, T., Derya, V., Detistov, P., Fernandez, P. D., Dijulio, D., Dmitry, S., Doré, D., Dueñas, J., Dupont, E., Egelhof, P., Egorova, I., Elekes, Z., Enders, J., Endres, J., Ershov, S., Ershova, O., Fernandez-Dominguez, B., Fetisov, A., Fiori, E., Fomichev, A., Fonseca, M., Fraile, L., Freer, M., Friese, J., Borge, M. G., Redondo, D. G., Gannon, S., Garg, U., Gasparic, I., Gasques, L., Gastineau, B., Geissel, H., Gernhäuser, R., Ghosh, T., Gilbert, M., Glorius, J., Golubev, P., Gorshkov, A., Gourishetty, A., Grigorenko, L., Gulyas, J., Haiduc, M., Hammache, F., Harakeh, M., Hass, M., Heine, M., Hennig, A., Henriques, A., Herzberg, R., Holl, M., Ignatov, A., Ignatyuk, A., Ilieva, S., Ivanov, M., Iwasa, N., Jakobsson, B., Johansson, H., Jonson, B., Joshi, P., Junghans, A., Jurado, B., Körner, G., Kalantar, N., Kanungo, R., Kelic-Heil, A., Kezzar, K., Khan, E., Khanzadeev, A., Kiselev, O., Kogimtzis, M., Körper, D., Kräckmann, S., Kröll, T., Krücken, R., Krasznahorkay, A., Kratz, J., Kresan, D., Krings, T., Krumbholz, A., Krupko, S., Kulessa, R., Kumar, S., Kurz, N., Kuzmin, E., Labiche, M., Langanke, K., Lazarus, I., Le Bleis, T., Lederer, C., Lemasson, A., Lemmon, R., Liberati, V., Litvinov, Y., Löher, B., Herraiz, J. L., Münzenberg, G., Machado, J., Maev, E., Mahata, K., Mancusi, D., Marganiec, J., Perez, M. M., Marusov, V., Mengoni, D., Million, B., Morcelle, V., Moreno, O., Movsesyan, A., Nacher, E., Najafi, M., Nakamura, T., Naqvi, F., Nikolski, E., Nilsson, T., Nociforo, C., Nolan, P., Novatsky, B., Nyman, G., Ornelas, A., Palit, R., Pandit, S., Panin, V., Paradela, C., Parkar, V., Paschalis, S., Pawłowski, P., Perea, A., Pereira, J., Petrache, C., Petri, M., Pickstone, S., Pietralla, N., Pietri, S., Pivovarov, Y., Potlog, P., Prokofiev, A., Rastrepina, G., Rauscher, T., Ribeiro, G., Ricciardi, M., Richter, A., Rigollet, C., Riisager, K., Rios, A., Ritter, C., Frutos, T. R., Vignote, J. R., Röder, M., Romig, C., Rossi, D., Roussel-Chomaz, P., Rout, P., Roy, S., Söderström, P., Sarkar, M. S., Sakuta, S., Salsac, M., Sampson, J., Del Rio Saez, J. S., Rosado, J. S., Sanjari, S., Sarriguren, P., Sauerwein, A., Savran, D., Scheidenberger, C., Scheit, H., Schmidt, S., Schmitt, C., Schnorrenberger, L., Schrock, P., Schwengner, R., Seddon, D., Sherrill, B., Shrivastava, A., Sidorchuk, S., Silva, J., Simon, H., Simpson, E., Singh, P., Slobodan, D., Sohler, D., Spieker, M., Stach, D., Stan, E., Stanoiu, M., Stepantsov, S., Stevenson, P., Strieder, F., Stuhl, L., Suda, T., Sümmerer, K., Streicher, B., Taieb, J., Takechi, M., Tanihata, I., Taylor, J., Tengblad, O., Ter-Akopian, G., Terashima, S., Teubig, P., Thies, R., Thoennessen, M., Thomas, T., Thornhill, J., Thungström, Göran, Timar, J., Togano, Y., Tomohiro, U., Tornyi, T., Tostevin, J., Townsley, C., Trautmann, W., Trivedi, T., Typel, S., Uberseder, E., Udias, J., Uesaka, T., Uvarov, L., Vajta, Z., Velho, P., Vikhrov, V., Volknandt, M., Volkov, V., Von Neumann-Cosel, P., Von Schmid, M., Wagner, A., Wamers, F., Weick, H., Wells, D., Westerberg, L., Wieland, O., Wiescher, M., Wimmer, C., Wimmer, K., Winfield, J. S., Winkel, M., Woods, P., Wyss, R., Yakorev, D., Yavor, M., Cardona, J. Z., Zartova, I., Zerguerras, T., Zgura, M., Zhdanov, A., Zhukov, M., Zieblinski, M., Zilges, A., Zuber, K., Reifarth, R., Altstadt, S., Göbel, K., Heftrich, T., Heil, M., Koloczek, A., Langer, C., Plag, R., Pohl, M., Sonnabend, K., Weigand, M., Adachi, T., Aksouh, F., Al-Khalili, J., Algarawi, M., Alghamdi, S., Alkhazov, G., Alkhomashi, N., Alvarez-Pol, H., Alvarez-Rodriguez, R., Andreev, V., Andrei, B., Atar, L., Aumann, T., Avdeichikov, V., Bacri, C., Bagchi, S., Barbieri, C., Beceiro, S., Beck, C., Beinrucker, C., Belier, G., Bemmerer, D., Bendel, M., Benlliure, J., Benzoni, G., Berjillos, R., Bertini, D., Bertulani, C., Bishop, S., Blasi, N., Bloch, T., Blumenfeld, Y., Bonaccorso, A., Boretzky, K., Botvina, A., Boudard, A., Boutachkov, P., Boztosun, I., Bracco, A., Brambilla, S., Monago, J. B., Caamano, M., Caesar, C., Camera, F., Casarejos, E., Catford, W., Cederkall, J., Cederwall, B., Chartier, M., Chatillon, A., Cherciu, M., Chulkov, L., Coleman-Smith, P., Cortina-Gil, D., Crespi, F., Crespo, R., Cresswell, J., Csatlós, M., Déchery, F., Davids, B., Davinson, T., Derya, V., Detistov, P., Fernandez, P. D., Dijulio, D., Dmitry, S., Doré, D., Dueñas, J., Dupont, E., Egelhof, P., Egorova, I., Elekes, Z., Enders, J., Endres, J., Ershov, S., Ershova, O., Fernandez-Dominguez, B., Fetisov, A., Fiori, E., Fomichev, A., Fonseca, M., Fraile, L., Freer, M., Friese, J., Borge, M. G., Redondo, D. G., Gannon, S., Garg, U., Gasparic, I., Gasques, L., Gastineau, B., Geissel, H., Gernhäuser, R., Ghosh, T., Gilbert, M., Glorius, J., Golubev, P., Gorshkov, A., Gourishetty, A., Grigorenko, L., Gulyas, J., Haiduc, M., Hammache, F., Harakeh, M., Hass, M., Heine, M., Hennig, A., Henriques, A., Herzberg, R., Holl, M., Ignatov, A., Ignatyuk, A., Ilieva, S., Ivanov, M., Iwasa, N., Jakobsson, B., Johansson, H., Jonson, B., Joshi, P., Junghans, A., Jurado, B., Körner, G., Kalantar, N., Kanungo, R., Kelic-Heil, A., Kezzar, K., Khan, E., Khanzadeev, A., Kiselev, O., Kogimtzis, M., Körper, D., Kräckmann, S., Kröll, T., Krücken, R., Krasznahorkay, A., Kratz, J., Kresan, D., Krings, T., Krumbholz, A., Krupko, S., Kulessa, R., Kumar, S., Kurz, N., Kuzmin, E., Labiche, M., Langanke, K., Lazarus, I., Le Bleis, T., Lederer, C., Lemasson, A., Lemmon, R., Liberati, V., Litvinov, Y., Löher, B., Herraiz, J. L., Münzenberg, G., Machado, J., Maev, E., Mahata, K., Mancusi, D., Marganiec, J., Perez, M. M., Marusov, V., Mengoni, D., Million, B., Morcelle, V., Moreno, O., Movsesyan, A., Nacher, E., Najafi, M., Nakamura, T., Naqvi, F., Nikolski, E., Nilsson, T., Nociforo, C., Nolan, P., Novatsky, B., Nyman, G., Ornelas, A., Palit, R., Pandit, S., Panin, V., Paradela, C., Parkar, V., Paschalis, S., Pawłowski, P., Perea, A., Pereira, J., Petrache, C., Petri, M., Pickstone, S., Pietralla, N., Pietri, S., Pivovarov, Y., Potlog, P., Prokofiev, A., Rastrepina, G., Rauscher, T., Ribeiro, G., Ricciardi, M., Richter, A., Rigollet, C., Riisager, K., Rios, A., Ritter, C., Frutos, T. R., Vignote, J. R., Röder, M., Romig, C., Rossi, D., Roussel-Chomaz, P., Rout, P., Roy, S., Söderström, P., Sarkar, M. S., Sakuta, S., Salsac, M., Sampson, J., Del Rio Saez, J. S., Rosado, J. S., Sanjari, S., Sarriguren, P., Sauerwein, A., Savran, D., Scheidenberger, C., Scheit, H., Schmidt, S., Schmitt, C., Schnorrenberger, L., Schrock, P., Schwengner, R., Seddon, D., Sherrill, B., Shrivastava, A., Sidorchuk, S., Silva, J., Simon, H., Simpson, E., Singh, P., Slobodan, D., Sohler, D., Spieker, M., Stach, D., Stan, E., Stanoiu, M., Stepantsov, S., Stevenson, P., Strieder, F., Stuhl, L., Suda, T., Sümmerer, K., Streicher, B., Taieb, J., Takechi, M., Tanihata, I., Taylor, J., Tengblad, O., Ter-Akopian, G., Terashima, S., Teubig, P., Thies, R., Thoennessen, M., Thomas, T., Thornhill, J., Thungström, Göran, Timar, J., Togano, Y., Tomohiro, U., Tornyi, T., Tostevin, J., Townsley, C., Trautmann, W., Trivedi, T., Typel, S., Uberseder, E., Udias, J., Uesaka, T., Uvarov, L., Vajta, Z., Velho, P., Vikhrov, V., Volknandt, M., Volkov, V., Von Neumann-Cosel, P., Von Schmid, M., Wagner, A., Wamers, F., Weick, H., Wells, D., Westerberg, L., Wieland, O., Wiescher, M., Wimmer, C., Wimmer, K., Winfield, J. S., Winkel, M., Woods, P., Wyss, R., Yakorev, D., Yavor, M., Cardona, J. Z., Zartova, I., Zerguerras, T., Zgura, M., Zhdanov, A., Zhukov, M., Zieblinski, M., Zilges, A., and Zuber, K.
Abstract: The nucleosynthesis of elements beyond iron is dominated by neutron captures in the s and r processes. However, 32 stable, proton-rich isotopes cannot be formed during those processes, because they are shielded from the s-process flow and r-process, β-decay chains. These nuclei are attributed to the p and rp process. For all those processes, current research in nuclear astrophysics addresses the need for more precise reaction data involving radioactive isotopes. Depending on the particular reaction, direct or inverse kinematics, forward or time-reversed direction are investigated to determine or at least to constrain the desired reaction cross sections. The Facility for Antiproton and Ion Research (FAIR) will offer unique, unprecedented opportunities to investigate many of the important reactions. The high yield of radioactive isotopes, even far away from the valley of stability, allows the investigation of isotopes involved in processes as exotic as the r or rp processes., Conference Paper
Published: 2016
Full Text: View/download PDF

19. Nuclear astrophysics with radioactive ions at FAIR

Author: Reifarthl, R., Altstadt, S., Goebell, K., Heftrich, T., Heil, M., Koloczek, A., Langer, C., Plag, R., Pohl, M., Sonnabend, K., Weigand, M., Adachi, T., Aksouh, F., Al-Khalili, J., AlGarawi, M., AlGhamdi, S., Alkhazov, G., Alkhomashi, N., Alvarez-Pol, H., Alvarez-Rodriguez, R., Andreev, V., Andrei, B., Atar, L., Aumann, T., Adeichikov, V., Bacri, C., Bagchi, S., Barbieri, C., Beceiro, S., Beck, C., Beinrucker, C., Belier, G., Bemmerer, D., Bendel, M., Benlliure, J., Benzoni, G., Berjillos, R., Bertini, D., Bertulani, C., Bishop, S., Blasi, N., Bloch, T., Blumenfeld, Y., Bonaccorso, A., Boretzky, K., Botvina, A., Boudard, A., Boutachkov, P., Boztosun, I., Bracco, A., Brambilla, S., Briz Monago, J., Caamano, M., Caesar, C., Camera, F., Casarejos, E., Catford, W., Cederkall, J., Cederwall, Bo, Chartier, M., Chatillon, A., Cherciu, M., Chulkov, L., Coleman-Smith, P., Cortina-Gil, D., Crespi, F., Crespo, R., Cresswell, J., Csatlos, M., Dechery, F., Davids, B., Davinson, T., Derya, V., Detistov, P., Diaz Fernandez, P., DiJuliot, D., Dmitry, S., Dore, D., Duenas, J., Dupont, E., Egelhof, P., Egorova, I., Elekes, Z., Enders, J., Endres, J., Ershov, S., Ershova, O., Fernandez-Dominguez, B., Fetisov, A., Fiori, E., Fomichev, A., Fonseca, M., Fraile, L., Freer, M., Friese, J., Borge, M. G., Galaviz Redondo, D., Gannon, S., Garg, U., Gasparic, I., Gasques, L., Gastineau, B., Geissel, H., Gernhaeuser, R., Ghosh, T., Gilbert, M., Glorius, J., Golubev, P., Gorshkov, A., Gourishett, A., Grigorenko, L., Gulyas, J., Haiduc, M., Hammache, F., Harakeh, M., Hass, M., Heine, M., Hennig, A., Henriques, A., Herzberg, R., Holl, M., Ignatov, A., Ignatyuk, A., Ilieva, S., Ivanov, M., Iwasa, N., Jakobsson, B., Johansson, H., Jonson, B., Joshi, P., Junghans, A., Jurado, B., Koerner, G., Kalantar, N., Kanungo, R., Kelic-Heil, A., Kezzar, K., Khan, E., Khanzadeev, A., Kiselev, O., Kogimtzis, M., Koerper, D., Kraeckmann, S., Kroell, T., Kruecken, R., Krasznahorkay, A., Kratz, J., Kresan, D., Krings, T., Krumbholz, A., Krupko, S., Kulessa, R., Kumar, S., Kurz, N., Kuzmin, E., Labiche, M., Langanke, K., Lazarus, I., Le Bleis, T., Lederer, C., Lemasson, A., Lemmon, R., Liberati, V., Litvinov, Y., Loeher, B., Lopez Herraiz, J., Muenzenberg, G., Machado, J., Maev, E., Mahata, K., Mancusi, D., Marganiec, J., Martinez Perez, M., Marusov, V., Mengoni, D., Million, B., Morcelle, V., Moreno, O., Movsesyan, A., Nacher, E., Najafi, M., Nakamura, T., Naqvi, F., Nikolski, E., Nilsson, T., Nociforo, C., Nolan, P., Novatsky, B., Nyman, G., Ornelas, A., Palit, R., Pandit, S., Panin, V., Paradela, C., Parkar, V., Paschalis, S., Pawlowski, P., Perea, A., Pereira, J., Petrache, C., Petri, M., Pickstone, S., Pietralla, N., Pietri, S., Pivovarov, Y., Potlog, P., Prokofiev, A., Rastrepina, G., Rauscher, T., Ribeiro, G., Ricciardi, M., Richter, A., Rigollet, C., Riisager, K., Rios, A., Ritter, C., Frutos, T. Rodriguez, Rodriguez Vignote, J., Roeder, M., Romig, C., Rossi, D., Roussel-Chomaz, P., Rout, P., Roy, S., Soederstroem, P., Sarkar, M. Saha, Sakuta, S., Salsac, M., Sampson, J., del Rio Saez, J. Sanchez, Sanchez Rosado, J., Sanjari, S., Sarriguren, P., Sauerwein, A., Savran, D., Scheidenberger, C., Scheit, H., Schmidt, S., Schmitt, C., Schnorrenberger, L., Schrock, P., Schwengner, R., Seddon, D., Sherrill, B., Shrivastava, A., Sidorchuk, S., Silva, J., Simon, H., Simpson, E., Singh, P., Slobodan, D., Sohler, D., Spieker, M., Stach, D., Stan, E., Stanoiu, M., Stepantsov, S., Stevenson, P., Strieder, F., Stuhl, L., Suda, T., Suemmerer, K., Streicher, B., Taieb, J., Takechi, M., Tanihata, I., Taylor, J., Tengblad, O., Ter-Akopian, G., Terashima, S., Teubig, P., Thies, R., Thoennessen, M., Thomas, T., Thornhill, J., Thungstrom, G., Timar, J., Togano, Y., Tomohiro, U., Tornyi, T., Tostevin, J., Townsley, C., Trautmann, W., Trivedi, T., Typel, S., Uberseder, E., Udias, J., Uesaka, T., Uvarov, L., Vajta, Z., Velho, P., Vikhrov, V., Volknandt, M., Volkov, V., von Neumann-Cose, P., von Schmid, M., Wagner, A., Wamers, F., Weick, H., Wells, D., Westerberg, L., Wieland, O., Wiescher, M., Wimmer, C., Wimmer, K., Winfield, J. S., Winkel, M., Woods, P., Wyss, Ramon, Yakorev, D., Yavor, M., Cardona, J. Zamora, Zartova, I., Zerguerras, T., Zgura, I., Zhdanov, A., Zhukov, M., Zieblinski, M., Zilges, A., Zuber, K., Reifarthl, R., Altstadt, S., Goebell, K., Heftrich, T., Heil, M., Koloczek, A., Langer, C., Plag, R., Pohl, M., Sonnabend, K., Weigand, M., Adachi, T., Aksouh, F., Al-Khalili, J., AlGarawi, M., AlGhamdi, S., Alkhazov, G., Alkhomashi, N., Alvarez-Pol, H., Alvarez-Rodriguez, R., Andreev, V., Andrei, B., Atar, L., Aumann, T., Adeichikov, V., Bacri, C., Bagchi, S., Barbieri, C., Beceiro, S., Beck, C., Beinrucker, C., Belier, G., Bemmerer, D., Bendel, M., Benlliure, J., Benzoni, G., Berjillos, R., Bertini, D., Bertulani, C., Bishop, S., Blasi, N., Bloch, T., Blumenfeld, Y., Bonaccorso, A., Boretzky, K., Botvina, A., Boudard, A., Boutachkov, P., Boztosun, I., Bracco, A., Brambilla, S., Briz Monago, J., Caamano, M., Caesar, C., Camera, F., Casarejos, E., Catford, W., Cederkall, J., Cederwall, Bo, Chartier, M., Chatillon, A., Cherciu, M., Chulkov, L., Coleman-Smith, P., Cortina-Gil, D., Crespi, F., Crespo, R., Cresswell, J., Csatlos, M., Dechery, F., Davids, B., Davinson, T., Derya, V., Detistov, P., Diaz Fernandez, P., DiJuliot, D., Dmitry, S., Dore, D., Duenas, J., Dupont, E., Egelhof, P., Egorova, I., Elekes, Z., Enders, J., Endres, J., Ershov, S., Ershova, O., Fernandez-Dominguez, B., Fetisov, A., Fiori, E., Fomichev, A., Fonseca, M., Fraile, L., Freer, M., Friese, J., Borge, M. G., Galaviz Redondo, D., Gannon, S., Garg, U., Gasparic, I., Gasques, L., Gastineau, B., Geissel, H., Gernhaeuser, R., Ghosh, T., Gilbert, M., Glorius, J., Golubev, P., Gorshkov, A., Gourishett, A., Grigorenko, L., Gulyas, J., Haiduc, M., Hammache, F., Harakeh, M., Hass, M., Heine, M., Hennig, A., Henriques, A., Herzberg, R., Holl, M., Ignatov, A., Ignatyuk, A., Ilieva, S., Ivanov, M., Iwasa, N., Jakobsson, B., Johansson, H., Jonson, B., Joshi, P., Junghans, A., Jurado, B., Koerner, G., Kalantar, N., Kanungo, R., Kelic-Heil, A., Kezzar, K., Khan, E., Khanzadeev, A., Kiselev, O., Kogimtzis, M., Koerper, D., Kraeckmann, S., Kroell, T., Kruecken, R., Krasznahorkay, A., Kratz, J., Kresan, D., Krings, T., Krumbholz, A., Krupko, S., Kulessa, R., Kumar, S., Kurz, N., Kuzmin, E., Labiche, M., Langanke, K., Lazarus, I., Le Bleis, T., Lederer, C., Lemasson, A., Lemmon, R., Liberati, V., Litvinov, Y., Loeher, B., Lopez Herraiz, J., Muenzenberg, G., Machado, J., Maev, E., Mahata, K., Mancusi, D., Marganiec, J., Martinez Perez, M., Marusov, V., Mengoni, D., Million, B., Morcelle, V., Moreno, O., Movsesyan, A., Nacher, E., Najafi, M., Nakamura, T., Naqvi, F., Nikolski, E., Nilsson, T., Nociforo, C., Nolan, P., Novatsky, B., Nyman, G., Ornelas, A., Palit, R., Pandit, S., Panin, V., Paradela, C., Parkar, V., Paschalis, S., Pawlowski, P., Perea, A., Pereira, J., Petrache, C., Petri, M., Pickstone, S., Pietralla, N., Pietri, S., Pivovarov, Y., Potlog, P., Prokofiev, A., Rastrepina, G., Rauscher, T., Ribeiro, G., Ricciardi, M., Richter, A., Rigollet, C., Riisager, K., Rios, A., Ritter, C., Frutos, T. Rodriguez, Rodriguez Vignote, J., Roeder, M., Romig, C., Rossi, D., Roussel-Chomaz, P., Rout, P., Roy, S., Soederstroem, P., Sarkar, M. Saha, Sakuta, S., Salsac, M., Sampson, J., del Rio Saez, J. Sanchez, Sanchez Rosado, J., Sanjari, S., Sarriguren, P., Sauerwein, A., Savran, D., Scheidenberger, C., Scheit, H., Schmidt, S., Schmitt, C., Schnorrenberger, L., Schrock, P., Schwengner, R., Seddon, D., Sherrill, B., Shrivastava, A., Sidorchuk, S., Silva, J., Simon, H., Simpson, E., Singh, P., Slobodan, D., Sohler, D., Spieker, M., Stach, D., Stan, E., Stanoiu, M., Stepantsov, S., Stevenson, P., Strieder, F., Stuhl, L., Suda, T., Suemmerer, K., Streicher, B., Taieb, J., Takechi, M., Tanihata, I., Taylor, J., Tengblad, O., Ter-Akopian, G., Terashima, S., Teubig, P., Thies, R., Thoennessen, M., Thomas, T., Thornhill, J., Thungstrom, G., Timar, J., Togano, Y., Tomohiro, U., Tornyi, T., Tostevin, J., Townsley, C., Trautmann, W., Trivedi, T., Typel, S., Uberseder, E., Udias, J., Uesaka, T., Uvarov, L., Vajta, Z., Velho, P., Vikhrov, V., Volknandt, M., Volkov, V., von Neumann-Cose, P., von Schmid, M., Wagner, A., Wamers, F., Weick, H., Wells, D., Westerberg, L., Wieland, O., Wiescher, M., Wimmer, C., Wimmer, K., Winfield, J. S., Winkel, M., Woods, P., Wyss, Ramon, Yakorev, D., Yavor, M., Cardona, J. Zamora, Zartova, I., Zerguerras, T., Zgura, I., Zhdanov, A., Zhukov, M., Zieblinski, M., Zilges, A., and Zuber, K.
Abstract: The nucleosynthesis of elements beyond iron is dominated by neutron captures in the s and r processes. However, 32 stable, proton-rich isotopes cannot be formed during those processes, because they are shielded from the s-process flow and r-process beta-decay chains. These nuclei are attributed to the p and rp process. For all those processes, current research in nuclear astrophysics addresses the need for more precise reaction data involving radioactive isotopes. Depending on the particular reaction, direct or inverse kinematics, forward or time-reversed direction are investigated to determine or at least to constrain the desired reaction cross sections. The Facility for Antiproton and Ion Research (FAIR) will offer unique, unprecedented opportunities to investigate many of the important reactions. The high yield of radioactive isotopes, even far away from the valley of stability, allows the investigation of isotopes involved in processes as exotic as the r or rp processes., QC 20160224
Published: 2016
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20. Nuclear astrophysics with radioactive ions at FAIR

Author: Reifarth, R, primary, Altstadt, S, additional, Göbel, K, additional, Heftrich, T, additional, Heil, M, additional, Koloczek, A, additional, Langer, C, additional, Plag, R, additional, Pohl, M, additional, Sonnabend, K, additional, Weigand, M, additional, Adachi, T, additional, Aksouh, F, additional, Al-Khalili, J, additional, AlGarawi, M, additional, AlGhamdi, S, additional, Alkhazov, G, additional, Alkhomashi, N, additional, Alvarez-Pol, H, additional, Alvarez-Rodriguez, R, additional, Andreev, V, additional, Andrei, B, additional, Atar, L, additional, Aumann, T, additional, Avdeichikov, V, additional, Bacri, C, additional, Bagchi, S, additional, Barbieri, C, additional, Beceiro, S, additional, Beck, C, additional, Beinrucker, C, additional, Belier, G, additional, Bemmerer, D, additional, Bendel, M, additional, Benlliure, J, additional, Benzoni, G, additional, Berjillos, R, additional, Bertini, D, additional, Bertulani, C, additional, Bishop, S, additional, Blasi, N, additional, Bloch, T, additional, Blumenfeld, Y, additional, Bonaccorso, A, additional, Boretzky, K, additional, Botvina, A, additional, Boudard, A, additional, Boutachkov, P, additional, Boztosun, I, additional, Bracco, A, additional, Brambilla, S, additional, Monago, J Briz, additional, Caamano, M, additional, Caesar, C, additional, Camera, F, additional, Casarejos, E, additional, Catford, W, additional, Cederkall, J, additional, Cederwall, B, additional, Chartier, M, additional, Chatillon, A, additional, Cherciu, M, additional, Chulkov, L, additional, Coleman-Smith, P, additional, Cortina-Gil, D, additional, Crespi, F, additional, Crespo, R, additional, Cresswell, J, additional, Csatlós, M, additional, Déchery, F, additional, Davids, B, additional, Davinson, T, additional, Derya, V, additional, Detistov, P, additional, Fernandez, P Diaz, additional, DiJulio, D, additional, Dmitry, S, additional, Doré, D, additional, Dueñas, J, additional, Dupont, E, additional, Egelhof, P, additional, Egorova, I, additional, Elekes, Z, additional, Enders, J, additional, Endres, J, additional, Ershov, S, additional, Ershova, O, additional, Fernandez-Dominguez, B, additional, Fetisov, A, additional, Fiori, E, additional, Fomichev, A, additional, Fonseca, M, additional, Fraile, L, additional, Freer, M, additional, Friese, J, additional, Borge, M G., additional, Redondo, D Galaviz, additional, Gannon, S, additional, Garg, U, additional, Gasparic, I, additional, Gasques, L, additional, Gastineau, B, additional, Geissel, H, additional, Gernhäuser, R, additional, Ghosh, T, additional, Gilbert, M, additional, Glorius, J, additional, Golubev, P, additional, Gorshkov, A, additional, Gourishetty, A, additional, Grigorenko, L, additional, Gulyas, J, additional, Haiduc, M, additional, Hammache, F, additional, Harakeh, M, additional, Hass, M, additional, Heine, M, additional, Hennig, A, additional, Henriques, A, additional, Herzberg, R, additional, Holl, M, additional, Ignatov, A, additional, Ignatyuk, A, additional, Ilieva, S, additional, Ivanov, M, additional, Iwasa, N, additional, Jakobsson, B, additional, Johansson, H, additional, Jonson, B, additional, Joshi, P, additional, Junghans, A, additional, Jurado, B, additional, Körner, G, additional, Kalantar, N, additional, Kanungo, R, additional, Kelic-Heil, A, additional, Kezzar, K, additional, Khan, E, additional, Khanzadeev, A, additional, Kiselev, O, additional, Kogimtzis, M, additional, Körper, D, additional, Kräckmann, S, additional, Kröll, T, additional, Krücken, R, additional, Krasznahorkay, A, additional, Kratz, J, additional, Kresan, D, additional, Krings, T, additional, Krumbholz, A, additional, Krupko, S, additional, Kulessa, R, additional, Kumar, S, additional, Kurz, N, additional, Kuzmin, E, additional, Labiche, M, additional, Langanke, K, additional, Lazarus, I, additional, Bleis, T Le, additional, Lederer, C, additional, Lemasson, A, additional, Lemmon, R, additional, Liberati, V, additional, Litvinov, Y, additional, Löher, B, additional, Herraiz, J Lopez, additional, Münzenberg, G, additional, Machado, J, additional, Maev, E, additional, Mahata, K, additional, Mancusi, D, additional, Marganiec, J, additional, Perez, M Martinez, additional, Marusov, V, additional, Mengoni, D, additional, Million, B, additional, Morcelle, V, additional, Moreno, O, additional, Movsesyan, A, additional, Nacher, E, additional, Najafi, M, additional, Nakamura, T, additional, Naqvi, F, additional, Nikolski, E, additional, Nilsson, T, additional, Nociforo, C, additional, Nolan, P, additional, Novatsky, B, additional, Nyman, G, additional, Ornelas, A, additional, Palit, R, additional, Pandit, S, additional, Panin, V, additional, Paradela, C, additional, Parkar, V, additional, Paschalis, S, additional, Pawłowski, P, additional, Perea, A, additional, Pereira, J, additional, Petrache, C, additional, Petri, M, additional, Pickstone, S, additional, Pietralla, N, additional, Pietri, S, additional, Pivovarov, Y, additional, Potlog, P, additional, Prokofiev, A, additional, Rastrepina, G, additional, Rauscher, T, additional, Ribeiro, G, additional, Ricciardi, M, additional, Richter, A, additional, Rigollet, C, additional, Riisager, K, additional, Rios, A, additional, Ritter, C, additional, Frutos, T Rodriguez, additional, Vignote, J Rodriguez, additional, Röder, M, additional, Romig, C, additional, Rossi, D, additional, Roussel-Chomaz, P, additional, Rout, P, additional, Roy, S, additional, Söderström, P, additional, Sarkar, M Saha, additional, Sakuta, S, additional, Salsac, M, additional, Sampson, J, additional, Sanchez, J, additional, Saez, del Rio, additional, Rosado, J Sanchez, additional, Sanjari, S, additional, Sarriguren, P, additional, Sauerwein, A, additional, Savran, D, additional, Scheidenberger, C, additional, Scheit, H, additional, Schmidt, S, additional, Schmitt, C, additional, Schnorrenberger, L, additional, Schrock, P, additional, Schwengner, R, additional, Seddon, D, additional, Sherrill, B, additional, Shrivastava, A, additional, Sidorchuk, S, additional, Silva, J, additional, Simon, H, additional, Simpson, E, additional, Singh, P, additional, Slobodan, D, additional, Sohler, D, additional, Spieker, M, additional, Stach, D, additional, Stan, E, additional, Stanoiu, M, additional, Stepantsov, S, additional, Stevenson, P, additional, Strieder, F, additional, Stuhl, L, additional, Suda, T, additional, Sümmerer, K, additional, Streicher, B, additional, Taieb, J, additional, Takechi, M, additional, Tanihata, I, additional, Taylor, J, additional, Tengblad, O, additional, Ter-Akopian, G, additional, Terashima, S, additional, Teubig, P, additional, Thies, R, additional, Thoennessen, M, additional, Thomas, T, additional, Thornhill, J, additional, Thungstrom, G, additional, Timar, J, additional, Togano, Y, additional, Tomohiro, U, additional, Tornyi, T, additional, Tostevin, J, additional, Townsley, C, additional, Trautmann, W, additional, Trivedi, T, additional, Typel, S, additional, Uberseder, E, additional, Udias, J, additional, Uesaka, T, additional, Uvarov, L, additional, Vajta, Z, additional, Velho, P, additional, Vikhrov, V, additional, Volknandt, M, additional, Volkov, V, additional, von Neumann-Cosel, P, additional, von Schmid, M, additional, Wagner, A, additional, Wamers, F, additional, Weick, H, additional, Wells, D, additional, Westerberg, L, additional, Wieland, O, additional, Wiescher, M, additional, Wimmer, C, additional, Wimmer, K, additional, Winfield, J S, additional, Winkel, M, additional, Woods, P, additional, Wyss, R, additional, Yakorev, D, additional, Yavor, M, additional, Cardona, J Zamora, additional, Zartova, I, additional, Zerguerras, T, additional, Zgura, M, additional, Zhdanov, A, additional, Zhukov, M, additional, Zieblinski, M, additional, Zilges, A, additional, and Zuber, K, additional
Published: 2016
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21. 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: ddc:530, 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., Comment: 10 pages, 5 figures
Published: 2010

22. 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

23. Production of the meson in the pd3He reaction at 1450 MeV and 1360 MeV

Author: Schönning, K., Bargholtz, Chr., Geren, L., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Khakimova, O., Khemchandani, K., Bashkanov, M., Kren, F., Kullander, S., Kupsc, A., Kuzmin, A., Lindberg, K., Marciniewski, P., Morosov, B., Oelert, W., Pauly, C., Petren, H., Berlowski, M., Petukhov, Y., Povtorejko, A., Ruber, R., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, E., Bogoslawsky, D., Thörngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wilkin, C., Wolke, M., Zabierowski, J., Zartova, I., Zlomanczuk, J., Calen, H., Clement, H., Demirörs, L., Ekström, C., and Fransson, K.
Subjects: Nuclear Theory, ddc:530, 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.
Published: 2009

24. 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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25. Measurement of the eta->pi+pi-e+e- decay branching ratio

Author: Bargholtz, C., Bashkanov, M., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Koch, I., Kullander, S., Kupsc, A., Bogoslawsky, D., Kuznetsov, A., Laukhin, I. V., Lindberg, K., Marciniewski, P., Meier, R., Morosov, B., Oelert, W., Pauly, C., Pettersson, H., Petukhov, Y., Calen, H., Povtorejko, A., Ruber, R.J.M.Y., Schönning, K., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tchernyshev, V., Cappellaro, F., Tegner, P. E., Thörngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., Zartova, I., Zlomanczuk, J., Clement, H., CELSIUS-WASA, Coll., Demirörs, L., Ekström, C., Fransson, K., and Geren, L.
Subjects: hadroproduction [eta], dalitz decays, 0.893 GeV-kin, exclusive reaction [p deuteron], (pi+ pi- positron electron) [mass spectrum], Uppsala CELSIUS Stor, High Energy Physics - Experiment, pair production [pi], +helium-3+eta%22">p deuteron --> helium-3 eta, ddc:530, High Energy Physics::Experiment, pair production [electron], eta meson decays, semileptonic decay [eta], +pi%2B+pi-+positron+electron%22">eta --> pi+ pi- positron electron, experimental results [magnetic detector], Nuclear Experiment, Astrophysics::Galaxy Astrophysics, branching ratio [eta]
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., Comment: 10 pages,6 figures revised version
Published: 2006

26. 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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27. The pd →3Heηπ0 reaction at Tp = 1450 MeV

Author: Schönning, Karin, Bargholtz, Chr., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calén, Hans, Clement, H., Demirors, L., Ekström, Curt, Fransson, Kjell, Geren, L., Gustafsson, Leif, Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Keleta, Samson, Khakimowa, O., Kren, F., Kullander, Sven, Kupsc, Andrzej, Kuzmin, A., Lindberg, K., Marciniewski, Pawel, Morosov, B., Oelert, W., Pauly, C., Petrén, Henrik, Petukhov, Y., Povtorejko, A., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P.-E., Thörngren Engblom, Pia, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wilkin, C., Wolke, Magnus, Zabierowski, J., Zartova, I., Zlomanczuk, Jozef, Schönning, Karin, Bargholtz, Chr., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calén, Hans, Clement, H., Demirors, L., Ekström, Curt, Fransson, Kjell, Geren, L., Gustafsson, Leif, Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Keleta, Samson, Khakimowa, O., Kren, F., Kullander, Sven, Kupsc, Andrzej, Kuzmin, A., Lindberg, K., Marciniewski, Pawel, Morosov, B., Oelert, W., Pauly, C., Petrén, Henrik, Petukhov, Y., Povtorejko, A., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P.-E., Thörngren Engblom, Pia, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wilkin, C., Wolke, Magnus, Zabierowski, J., Zartova, I., and Zlomanczuk, Jozef
Abstract: The cross section for the pd→3Heηπ0 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 mesons. The data indicate that the production mechanism involves the formation of the Δ(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 particles are well reproduce dby a phase space Monte Carlo simulation weighted with the p-wave factor of the square of the π0 momentum in the 3He π0 system.
Published: 2010
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28. Production of eta and 3 pi mesons in the pd -> (HeX)-He-3 reaction at 1360 and 1450 MeV

Author: Schönning, Karin, Bargholtz, Chr., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calén, Hans, Clement, H., Demiroers, L., Ekström, Curt, Fransson, Kjell, Geren, L., Gustafsson, Leif, Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Keleta, Samson, Khakimova, O., Kren, F., Kullander, Sven, Kupsc, Andrzej, Kuzmin, A., Lindberg, K., Marciniewski, Pawel, Morosov, B., Oelert, W., Pauly, C., Petrén, Henrik, Petukhov, Y., Povtorejko, A., 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., Wolke, M., Zabierowski, J., Zartova, I., Zlomanczuk, Jozef, Schönning, Karin, Bargholtz, Chr., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calén, Hans, Clement, H., Demiroers, L., Ekström, Curt, Fransson, Kjell, Geren, L., Gustafsson, Leif, Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Keleta, Samson, Khakimova, O., Kren, F., Kullander, Sven, Kupsc, Andrzej, Kuzmin, A., Lindberg, K., Marciniewski, Pawel, Morosov, B., Oelert, W., Pauly, C., Petrén, Henrik, Petukhov, Y., Povtorejko, A., 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., Wolke, M., Zabierowski, J., Zartova, I., and Zlomanczuk, Jozef
Abstract: The cross-sections of the pd -> He-3 eta, pd -> He-3 pi(0)pi(0)pi(0) and pd -> He-3 pi(+)pi(-)pi(0) reactions have been measured at the 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 d sigma/d Omega of the eta meson in the pd -> He-3 eta reaction shows a strong forward-backward asymmetry in the CMS. The ratio between the pd -> He-3 pi(+)pi(-)pi(0) and pd -> He-3 pi(0)pi(0)pi(0) cross-sections has been analysed in terms of isospin amplitudes. The reconstructed invariant-mass distributions of the pi pi, He-3 pi and (3)He2 pi systems provide hints on the role of nucleon resonances in the 3 pi production process.
Published: 2010
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29. eta-meson production in proton-proton collisions at excess energies of 40 and 72 MeV

Author: Petrén, Henrik, Bargholtz, Chr., Bashkanov, M., Bogoslavsky, D., Calén, Hans, Clement, H., Demiroers, L., Ekström, Curt, Fransson, Kjell, Fäldt, Göran, Gerén, L., Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Keleta, S., Khakimova, O., Koch, I., Kren, F., Kullander, Sven, Kupsc, Andrzej, Lindberg, K., Marciniewski, Pawel, Morosov, B., Pauly, C., Petukhov, Y., Povtorejko, A., Schönning, Karin, Scobel, W., Skorodko, T., Stepaniak, J., Tegner, P-E, Engblom, P. Thörngren, Tikhomirov, V., Wilkin, C., Wolke, Magnus, Zabierowski, J., Zartova, I., Zlomanczuk, Jozef, Petrén, Henrik, Bargholtz, Chr., Bashkanov, M., Bogoslavsky, D., Calén, Hans, Clement, H., Demiroers, L., Ekström, Curt, Fransson, Kjell, Fäldt, Göran, Gerén, L., Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Keleta, S., Khakimova, O., Koch, I., Kren, F., Kullander, Sven, Kupsc, Andrzej, Lindberg, K., Marciniewski, Pawel, Morosov, B., Pauly, C., Petukhov, Y., Povtorejko, A., Schönning, Karin, Scobel, W., Skorodko, T., Stepaniak, J., Tegner, P-E, Engblom, P. Thörngren, Tikhomirov, V., Wilkin, C., Wolke, Magnus, Zabierowski, J., Zartova, I., and Zlomanczuk, Jozef
Abstract: The production of eta mesons in proton-proton collisions has been studied using the WASA detector at the CELSIUS storage ring at excess energies of Q = 40 MeV and Q = 72 MeV. The eta was detected through its 2 gamma decay in a near-4 pi electromagnetic calorimeter, whereas the protons were measured by a combination of straw chambers and plastic scintillator planes in the forward hemisphere. About 6.9 x 10(4) and 9.3 x 10(4) events were found at Q = 40 MeV and Q = 72 MeV, respectively, with background contributions of less than 5%. A simple parametrization of the production cross section in terms of low partial waves was used to evaluate the acceptance corrections. Strong evidence was found for the influence of higher partial waves. The Dalitz plots show the presence of p waves in both the pp and the eta {pp} systems and the angular distributions of the eta in the center-of-mass frame suggest the influence of d-wave eta mesons.
Published: 2010
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30. Production of the omega meson in the pd -> He-3 omega reaction at 1450 MeV and 1360 MeV

Author: Schönning, Karin, Bargholtz, Chr, Bashkanov, M, Berlowski, M, Bogoslawsky, D, Calen, H, Clement, H, Demiroers, L, Ekström, C, Fransson, K, Geren, L, Gustafsson, L, Hoistad, B, Ivanov, G, Jacewicz, M, Jiganov, E, Johansson, T, Keleta, S, Khakimova, O, Khemchandani, P, Kren, F, Kullander, S, Kupsc, A, Kuzmin, A, Lindberg, K, Marciniewski, P, Morosov, B, Oelert, W, Pauly, C, Petrén, 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., Thörngren Engblom, P, Tikhomirov, V, Turowiecki, A, Wagner, J, Wilkin, C, Wolke, M, Zabierowski, J, Zartova, I, Zlomanczuk, J, Schönning, Karin, Bargholtz, Chr, Bashkanov, M, Berlowski, M, Bogoslawsky, D, Calen, H, Clement, H, Demiroers, L, Ekström, C, Fransson, K, Geren, L, Gustafsson, L, Hoistad, B, Ivanov, G, Jacewicz, M, Jiganov, E, Johansson, T, Keleta, S, Khakimova, O, Khemchandani, P, Kren, F, Kullander, S, Kupsc, A, Kuzmin, A, Lindberg, K, Marciniewski, P, Morosov, B, Oelert, W, Pauly, C, Petrén, 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., Thörngren Engblom, P, Tikhomirov, V, Turowiecki, A, Wagner, J, Wilkin, C, Wolke, M, Zabierowski, J, Zartova, I, and Zlomanczuk, J
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.
Published: 2009
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31. Exclusive measurement of two-pion production in the dd -> He-4 pi pi reaction

Author: Keleta, S, Bargholtz, Chr, Bashkanov, M, Berlowski, M, Bogoslawsky, D, Calèn, H, Clement, H, Demirors, L, Ekström, 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, Petrèn, H, Petukhov, Y, Povtorejko, A, Pricking, A, Ruber, R. J. M. Y., Schönning, K, Scobel, W, Shafigullin, R, Shwartz, B, Skorodko, T, Sopov, V, Stepaniak, J, Tegner, P.-E., Engblom, Thorngren, Tikhomirov, V, Turowiecki, A, Wagner, J, Wilkin, C, Wolke, M, Zabierowski, J, Zartova, I, Zlomanczuk, J, Keleta, S, Bargholtz, Chr, Bashkanov, M, Berlowski, M, Bogoslawsky, D, Calèn, H, Clement, H, Demirors, L, Ekström, 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, Petrèn, H, Petukhov, Y, Povtorejko, A, Pricking, A, Ruber, R. J. M. Y., Schönning, K, Scobel, W, Shafigullin, R, Shwartz, B, Skorodko, T, Sopov, V, Stepaniak, J, Tegner, P.-E., Engblom, Thorngren, Tikhomirov, V, Turowiecki, A, Wagner, J, Wilkin, C, Wolke, M, Zabierowski, J, Zartova, I, and Zlomanczuk, J
Abstract: The results from the first kinematically complete measurement of the dd -> He-4 pi pi reaction are reported. The aim was to investigate a long standing puzzle regarding the origin of the peculiar pi pi-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 pi pi-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 -> d pi sub-processes. (C) 2009 Elsevier B.V. All rights reserved.
Published: 2009
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32. Double-Pionic Fusion of Nuclear Systems and the 'ABC' Effect : Approaching a Puzzle by Exclusive and Kinematically Complete Measurements

Author: Bashkanov, M., Bargholtz, C., Berlowski, M., Bogoslawsky, D., Calén, Hans, Clement, H., Demiroers, L., Doroshkevich, E., Duniec, David, Ekström, Curt, Fransson, Kjell, Geren, L., Gustafsson, Leif, Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Khakimova, O., Keleta, Samson, Koch, Inken, Kren, F., Kullander, Sven, Kupsc, Andrzej, Lindberg, K., Marciniewski, Pawel, Meier, R., Morosov, B., Pauly, C., Pettersson, Henrik, Petukhov, Y., Povtorejko, A., Pricking, A., Ruber, Roger J. M. Y., Schönning, Karin, Scobel, W., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. -E, Thörngren-Engblom, Pia, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Zabierowski, J., Zartova, I., Zlomanczuk, Jozef, Bashkanov, M., Bargholtz, C., Berlowski, M., Bogoslawsky, D., Calén, Hans, Clement, H., Demiroers, L., Doroshkevich, E., Duniec, David, Ekström, Curt, Fransson, Kjell, Geren, L., Gustafsson, Leif, Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Khakimova, O., Keleta, Samson, Koch, Inken, Kren, F., Kullander, Sven, Kupsc, Andrzej, Lindberg, K., Marciniewski, Pawel, Meier, R., Morosov, B., Pauly, C., Pettersson, Henrik, Petukhov, Y., Povtorejko, A., Pricking, A., Ruber, Roger J. M. Y., Schönning, Karin, Scobel, W., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. -E, Thörngren-Engblom, Pia, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Zabierowski, J., Zartova, I., and Zlomanczuk, Jozef
Abstract: The ABC effect-a puzzling low-mass enhancement in the pi pi invariant mass spectrum, first observed by Abashian, Booth, and Crowe-is well known from inclusive measurements of two-pion production in nuclear fusion reactions. Here we report on the first exclusive and kinematically complete measurements of the most basic double-pionic fusion reaction pn -> d pi(0)pi(0) at beam energies of 1.03 and 1.35 GeV. The measurements, which have been carried out at CELSIUS-WASA, reveal the ABC effect to be a (pi pi)(I=L=0) channel phenomenon associated with both a resonancelike energy dependence in the integral cross section and the formation of a Delta Delta system in the intermediate state. A corresponding simple s-channel resonance ansatz provides a surprisingly good description of the data.
Published: 2009
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33. Polarisation of the omega meson in the pd -> He-3 omega reaction at 1360 and 1450 MeV

Author: Schönning, Karin, Bargholtz, Chr., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calén, Hans, Clement, H., Demiroers, L., Ekström, Curt, Fransson, Kjell, Geren, L., Gustafsson, Leif, Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Keleta, Samson, Khakimova, O., Koch, Inken, Kren, F., Kullander, Sven, Kupsc, Andrzej, Kuzmin, A., Lindberg, K., Marciniewski, Pawel, Morosov, B., Oelert, W., Pauly, C., Pettersson, Henrik, Petukhov, Y., Povtorejko, A., Ruber, Roger J. M. Y., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. -E., Thörngren Engblom, Pia, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wilkin, C., Wolke, M., Zabierowski, J., Zartova, I., Zlomanczuk, Jozef, Schönning, Karin, Bargholtz, Chr., Bashkanov, M., Berlowski, M., Bogoslawsky, D., Calén, Hans, Clement, H., Demiroers, L., Ekström, Curt, Fransson, Kjell, Geren, L., Gustafsson, Leif, Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Keleta, Samson, Khakimova, O., Koch, Inken, Kren, F., Kullander, Sven, Kupsc, Andrzej, Kuzmin, A., Lindberg, K., Marciniewski, Pawel, Morosov, B., Oelert, W., Pauly, C., Pettersson, Henrik, Petukhov, Y., Povtorejko, A., Ruber, Roger J. M. Y., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. -E., Thörngren Engblom, Pia, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wilkin, C., Wolke, M., Zabierowski, J., Zartova, I., and Zlomanczuk, Jozef
Abstract: The tensor polarisation of omega mesons produced in the pd -> He-3 omega reaction has been studied at two energies near threshold. The 3 He nuclei were detected in coincidence with the pi(0)pi(+)pi(-) or pi(0)gamma 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-lizuka rule when comparing the production of vector mesons in low energy hadronic reactions.
Published: 2008
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34. Measurement of eta meson decays into lepton-antilepton pairs

Author: Berlowski, M., Bargholtz, Chr., Bashkanov, M., Bogoslawsky, D., Bondar, A., Calén, Hans, Cappellaro, Filippo, Clement, H., Demiroers, L., Ekström, Curt, Fransson, Kjell, Geren, L., Gustafsson, Leif, Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Keleta, Samson, Koch, Inken, Kullander, Sven, Kupsc, Andrzej, Kuzmin, A., Kuznetsov, A., Laukhin, I. V., Lindberg, K., Marciniewski, Pawel, Meier, R., Morosov, B., Oelert, W., Pauly, C., Pettersson, Henrik, Petukhov, Y., Povtorejko, A., Ruber, Roger J. M. Y., Schönning, Karin, Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. -E., Thörngren Engblom, Pia, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., Zartova, I., Zlomanczuk, Jozef, Berlowski, M., Bargholtz, Chr., Bashkanov, M., Bogoslawsky, D., Bondar, A., Calén, Hans, Cappellaro, Filippo, Clement, H., Demiroers, L., Ekström, Curt, Fransson, Kjell, Geren, L., Gustafsson, Leif, Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Keleta, Samson, Koch, Inken, Kullander, Sven, Kupsc, Andrzej, Kuzmin, A., Kuznetsov, A., Laukhin, I. V., Lindberg, K., Marciniewski, Pawel, Meier, R., Morosov, B., Oelert, W., Pauly, C., Pettersson, Henrik, Petukhov, Y., Povtorejko, A., Ruber, Roger J. M. Y., Schönning, Karin, Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tegner, P. -E., Thörngren Engblom, Pia, Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, M., Yamamoto, A., Zabierowski, J., Zartova, I., and Zlomanczuk, Jozef
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 9.7x10(-5) (90% CL). The branching ratio for the decay eta -> e(+)e(-)gamma is determined to (7.8 +/- 0.5(stat)+/- 0.8(syst))x10(-3) in agreement with world average value. An upper limit (90% CL) for the branching ratio for the eta -> e(+)e(-) decay is 2.7x10(-5) and a limit for the sum of the eta ->mu(+)mu(-)mu(+)mu(-) and eta ->pi(+)pi(-)mu(+)mu(-) decays is 3.6x10(-4).
Published: 2008
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35. 200 and 300 MeV/nucleon nuclear reactions responsible for single-event effects in microelectronics

Author: Jäderström, H., Murin, Yu., Babain, Yu., Chubarov, M., Pljuschev, V., Zubkov, M., Nomokonov, P., Olsson, N., Blomgren, J., Tippawan, U., Westerberg, L., Golubev, P., Jakobsson, B., Geren, L., Tegner, P. -E., Zartova, I., Budzanowski, A., Czech, B., Skwirczynska, I., Kondratiev, V., Tang, H. H. K., Aichelin, J., Watanabe, Y., Gudima, K. K., Jäderström, H., Murin, Yu., Babain, Yu., Chubarov, M., Pljuschev, V., Zubkov, M., Nomokonov, P., Olsson, N., Blomgren, J., Tippawan, U., Westerberg, L., Golubev, P., Jakobsson, B., Geren, L., Tegner, P. -E., Zartova, I., Budzanowski, A., Czech, B., Skwirczynska, I., Kondratiev, V., Tang, H. H. K., Aichelin, J., Watanabe, Y., and Gudima, K. K.
Abstract: An experimental study of nuclear reactions between Si-28 nuclei at 200 and 300 MeV/nucleon and hydrogen or deuterium target nuclei was performed at the CELSIUS storage ring in Uppsala, Sweden, to collect information about the reactions responsible for single-event effects in microelectronics. Inclusive data on Si-28 fragmentation, as well as data on correlations between recoils and spectator protons or alpha particles are compared to predictions from the Dubna cascade model and the Japan Atomic Energy Research Institute version of the quantum molecular dynamics model. The comparison shows satisfactory agreement for inclusive data except for He fragments where low-energy sub-barrier fragments and recoiling fragments with very large momenta are produced much more frequently than predicted. The yield of exclusive data are also severely underestimated by the models whereas the charge distributions of recoils in these correlations compare well. The observed enhancement in He emission, which may well be important for the description of single-event effects, is most likely to be attributed to alpha clustering in Si-28 nuclei.
Published: 2008
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36. Measurement of the eta -> pi(+)pi(-)e(+)e(-) decay branching ratio

Author: Bargholtz, Chr., Bashkanov, M., Bogoslawsky, D., Calén, Hans, Cappellaro, F., Clement, H., Demiroers, L., Ekström, Curt, Fransson, Kjell E., Gerén, L., Gustafsson, Leif, Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Keleta, S. Negasi, Koch, I., Kullander, Sven O., Kupsc, Andrzej, Kuznetsov, A., Laukhin, I. V., Lindberg, K., Marciniewski, Pawel, Meier, R., Morosov, B., Oelert, W., Pauly, C., Pettersson, Hanna I., Petukhov, Y., Povtorejko, A., Ruber, Roger J. M. Y., Schönning, Karin, Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tchernyshev, V., Tegner, P. -E, Thörngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, Magnus, Yamamoto, A., Zabierowski, J., Zartova, I., Zlomanczuk, Jozef, Bargholtz, Chr., Bashkanov, M., Bogoslawsky, D., Calén, Hans, Cappellaro, F., Clement, H., Demiroers, L., Ekström, Curt, Fransson, Kjell E., Gerén, L., Gustafsson, Leif, Höistad, Bo, Ivanov, G., Jacewicz, Marek, Jiganov, E., Johansson, Tord, Keleta, S. Negasi, Koch, I., Kullander, Sven O., Kupsc, Andrzej, Kuznetsov, A., Laukhin, I. V., Lindberg, K., Marciniewski, Pawel, Meier, R., Morosov, B., Oelert, W., Pauly, C., Pettersson, Hanna I., Petukhov, Y., Povtorejko, A., Ruber, Roger J. M. Y., Schönning, Karin, Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tchernyshev, V., Tegner, P. -E, Thörngren-Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G. J., Wolke, Magnus, Yamamoto, A., Zabierowski, J., Zartova, I., and Zlomanczuk, Jozef
Abstract: The reaction pd -> He-3 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) x 10(-4).
Published: 2007
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37. Properties of the WASA pellet target and a stored intermediate-energy beam

Author: Bargholtz, Chr., Geren, L., Kupsc, Andrzej, Laukhin, I. V., Lindberg, K., Shafigullin, R .R., Tegner, P. -E., Zartova, I., Bargholtz, Chr., Geren, L., Kupsc, Andrzej, Laukhin, I. V., Lindberg, K., Shafigullin, R .R., Tegner, P. -E., and Zartova, I.
Abstract: Experimental data from the reaction close to threshold have been used to investigate time-dependent properties of the WASA pellet target and the stored beam of 892.8 MeV protons in the CELSIUS accelerator. The detection of 3He ions in solid-state detectors provides an excellent almost background free trigger for η production. Pellet interactions with the surrounding material and with the beam lead to evaporation of deuterium gas into the beam pipe. Approximately 30% of the registered η decay events are due to interactions in deuterium gas outside the pellets. Due to beam–target interaction the beam is transversely heated and appears to acquire a component of a slightly lower energy.
Published: 2007
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38. SEE-Related Studies at CELSIUS

Author: Murin, Y, Aichelin, J, Bargholtz, C, Blomgren, J, Budzanowski, A, Chubarov, M, Czech, B, Ekström, C, Gerén, L, Golubev, P, Jakobsson, B, Kolozhvari, A, Lozhkin, O, Nomokonov, P, Olsson, N, Persson, H, Plyushchev, V, Skwirczynska, J, Tang, H.H.K, Tegnér, P-E, Westerberg, L, Zartova, I, Zubkov, M, Watanabe, Y, Murin, Y, Aichelin, J, Bargholtz, C, Blomgren, J, Budzanowski, A, Chubarov, M, Czech, B, Ekström, C, Gerén, L, Golubev, P, Jakobsson, B, Kolozhvari, A, Lozhkin, O, Nomokonov, P, Olsson, N, Persson, H, Plyushchev, V, Skwirczynska, J, Tang, H.H.K, Tegnér, P-E, Westerberg, L, Zartova, I, Zubkov, M, and Watanabe, Y
Published: 2005

39. η-meson production in proton-proton collisions at excess energies of40and72MeV

Author: Petrén, H., primary, Bargholtz, Chr., additional, Bashkanov, M., additional, Bogoslavsky, D., additional, Calén, H., additional, Clement, H., additional, Demirörs, L., additional, Ekström, C., additional, Fransson, K., additional, Fäldt, G., additional, Gerén, L., additional, Höistad, B., additional, Ivanov, G., additional, Jacewicz, M., additional, Jiganov, E., additional, Johansson, T., additional, Keleta, S., additional, Khakimova, O., additional, Koch, I., additional, Kren, F., additional, Kullander, S., additional, Kupść, A., additional, Lindberg, K., additional, Marciniewski, P., additional, Morosov, B., additional, Pauly, C., additional, Petukhov, Y., additional, Povtorejko, A., additional, Schönning, K., additional, Scobel, W., additional, Skorodko, T., additional, Stepaniak, J., additional, Tegnér, P.-E., additional, Thörngren Engblom, P., additional, Tikhomirov, V., additional, Wilkin, C., additional, Wolke, M., additional, Zabierowski, J., additional, Zartova, I., additional, and Złomańczuk, J., additional
Published: 2010
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40. Production of $ \eta$ and 3$ \pi$ mesons in the pd $ \rightarrow$ 3HeX reaction at 1360 and 1450 MeV

Author: Schönning, K., primary, Bargholtz, Chr., additional, Bashkanov, M., additional, Berlowski, M., additional, Bogoslawsky, D., additional, Calén, H., additional, Clement, H., additional, Demirörs, L., additional, Ekström, C., additional, Fransson, K., additional, Gerén, L., additional, Gustafsson, L., additional, Höistad, B., additional, Ivanov, G., additional, Jacewicz, M., additional, Jiganov, E., additional, Johansson, T., additional, Keleta, S., additional, Khakimova, O., additional, Kren, F., additional, Kullander, S., additional, Kupsc, A., additional, Kuzmin, A., additional, Lindberg, K., additional, Marciniewski, P., additional, Morosov, B., additional, Oelert, W., additional, Pauly, C., additional, Petrén, H., additional, Petukhov, Y., additional, Povtorejko, A., additional, Scobel, W., additional, Shafigullin, R., additional, Shwartz, B., additional, Skorodko, T., additional, Sopov, V., additional, Stepaniak, J., additional, Tegnér, P. -E., additional, Thörngren Engblom, P., additional, Tikhomirov, V., additional, Turowiecki, A., additional, Wagner, G. J., additional, Wolke, M., additional, Zabierowski, J., additional, Zartova, I., additional, and Złomanczuk, J., additional
Published: 2010
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41. Exclusive measurement of two-pion production in the reaction

Author: Keleta, S., primary, Bargholtz, Chr., additional, Bashkanov, M., additional, Berłowski, M., additional, Bogoslawsky, D., additional, Calén, H., additional, Clement, H., additional, Demirörs, L., additional, Ekström, C., additional, Fransson, K., additional, Gerén, L., additional, Gustafsson, L., additional, Höistad, B., additional, Ivanov, G., additional, Jacewicz, M., additional, Jiganov, E., additional, Johansson, T., additional, Khakimova, O., additional, Kren, F., additional, Kullander, S., additional, Kupść, A., additional, Kuzmin, A., additional, Lindberg, K., additional, Marciniewski, P., additional, Morosov, B., additional, Oelert, W., additional, Pauly, C., additional, Petrén, H., additional, Petukhov, Y., additional, Povtorejko, A., additional, Pricking, A., additional, Ruber, R.J.M.Y., additional, Schönning, K., additional, Scobel, W., additional, Shafigullin, R., additional, Shwartz, B., additional, Skorodko, T., additional, Sopov, V., additional, Stepaniak, J., additional, Tegnér, P.-E., additional, Engblom, P. Thörngren, additional, Tikhomirov, V., additional, Turowiecki, A., additional, Wagner, G.J., additional, Wilkin, C., additional, Wolke, M., additional, Zabierowski, J., additional, Zartova, I., additional, and Złomańczuk, J., additional
Published: 2009
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42. Production of the ω meson in thepd→He3ωreaction at 1450 MeV and 1360 MeV

Author: Schönning, K., primary, Bargholtz, Chr., additional, Bashkanov, M., additional, Berłowski, M., additional, Bogoslawsky, D., additional, Calén, H., additional, Clement, H., additional, Demirörs, L., additional, Ekström, C., additional, Fransson, K., additional, Gerén, L., additional, Gustafsson, L., additional, Höistad, B., additional, Ivanov, G., additional, Jacewicz, M., additional, Jiganov, E., additional, Johansson, T., additional, Keleta, S., additional, Khakimova, O., additional, Khemchandani, K. P., additional, Kren, F., additional, Kullander, S., additional, Kupść, A., additional, Kuzmin, A., additional, Lindberg, K., additional, Marciniewski, P., additional, Morosov, B., additional, Oelert, W., additional, Pauly, C., additional, Petrén, H., additional, Petukhov, Y., additional, Povtorejko, A., additional, Ruber, R. J. M. Y., additional, Scobel, W., additional, Shafigullin, R., additional, Shwartz, B., additional, Skorodko, T., additional, Sopov, V., additional, Stepaniak, J., additional, Tegnér, P.-E., additional, Engblom, P. Thörngren, additional, Tikhomirov, V., additional, Turowiecki, A., additional, Wagner, G. J., additional, Wilkin, C., additional, Wolke, M., additional, Zabierowski, J., additional, Zartova, I., additional, and Złomańczuk, J., additional
Published: 2009
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43. Double-Pionic Fusion of Nuclear Systems and the “ABC” Effect: Approaching a Puzzle by Exclusive and Kinematically Complete Measurements

Author: Bashkanov, M., primary, Bargholtz, C., additional, Berłowski, M., additional, Bogoslawsky, D., additional, Calén, H., additional, Clement, H., additional, Demiroers, L., additional, Doroshkevich, E., additional, Duniec, D., additional, Ekström, C., additional, Fransson, K., additional, Geren, L., additional, Gustafsson, L., additional, Höistad, B., additional, Ivanov, G., additional, Jacewicz, M., additional, Jiganov, E., additional, Johansson, T., additional, Khakimova, O., additional, Keleta, S., additional, Koch, I., additional, Kren, F., additional, Kullander, S., additional, Kupść, A., additional, Lindberg, K., additional, Marciniewski, P., additional, Meier, R., additional, Morosov, B., additional, Pauly, C., additional, Pettersson, H., additional, Petukhov, Y., additional, Povtorejko, A., additional, Pricking, A., additional, Ruber, R. J. M. Y., additional, Schönning, K., additional, Scobel, W., additional, Shwartz, B., additional, Skorodko, T., additional, Sopov, V., additional, Stepaniak, J., additional, Tegner, P.-E., additional, Thörngren-Engblom, P., additional, Tikhomirov, V., additional, Turowiecki, A., additional, Wagner, G. J., additional, Wolke, M., additional, Zabierowski, J., additional, Zartova, I., additional, and Złomanczuk, J., additional
Published: 2009
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44. Measurement of the [formula omitted] decay branching ratio

Author: Bargholtz, Chr., Bashkanov, M., Bogoslawsky, D., Calén, H., Cappellaro, F., Clement, H., Demirörs, L., Ekström, C., Fransson, K., Gerén, L., Gustafsson, L., Höistad, B., Ivanov, G., Jacewicz, M., Jiganov, E., Johansson, T., Keleta, S., Koch, I., Kullander, S., Kupść, 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., Schönning, K., Scobel, W., Shafigullin, R., Shwartz, B., Skorodko, T., Sopov, V., Stepaniak, J., Tchernyshev, V., Tegnér, P.-E., Thörngren Engblom, P., Tikhomirov, V., Turowiecki, A., Wagner, G.J., Wolke, M., Yamamoto, A., Zabierowski, J., Zartova, I., and Złomańczuk, J.
Published: 2007
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45. Polarisation of the ω meson in the pd→He3ω reaction at 1360 and 1450 MeV

Author: Schönning, K., primary, Bargholtz, Chr., additional, Bashkanov, M., additional, Berłowski, M., additional, Bogoslawsky, D., additional, Calén, H., additional, Clement, H., additional, Demirörs, L., additional, Ekström, C., additional, Fransson, K., additional, Gerén, L., additional, Gustafsson, L., additional, Höistad, B., additional, Ivanov, G., additional, Jacewicz, M., additional, Jiganov, E., additional, Johansson, T., additional, Keleta, S., additional, Khakimova, O., additional, Koch, I., additional, Kren, F., additional, Kullander, S., additional, Kupść, A., additional, Kuzmin, A., additional, Lindberg, K., additional, Marciniewski, P., additional, Morosov, B., additional, Oelert, W., additional, Pauly, C., additional, Pettersson, H., additional, Petukhov, Y., additional, Povtorejko, A., additional, Ruber, R.J.M.Y., additional, Scobel, W., additional, Shafigullin, R., additional, Shwartz, B., additional, Skorodko, T., additional, Sopov, V., additional, Stepaniak, J., additional, Tegnér, P.-E., additional, Engblom, P. Thörngren, additional, Tikhomirov, V., additional, Turowiecki, A., additional, Wagner, G.J., additional, Wilkin, C., additional, Wolke, M., additional, Zabierowski, J., additional, Zartova, I., additional, and Złomańczuk, J., additional
Published: 2008
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46. The WASA detector facility at CELSIUS

Author: Bargholtz, Chr., primary, Bashkanov, M., additional, Berłowski, M., additional, Bondar, A., additional, Bogoslawsky, D., additional, Brodowski, W., additional, Brudvik, J., additional, Calén, H., additional, Capellaro, F., additional, Chilingarov, A., additional, Clement, H., additional, Comfort, J., additional, Demirörs, L., additional, Ekström, C., additional, Fransson, K., additional, Fridén, C.-J., additional, Gerén, L., additional, Gornov, M., additional, Grebenev, V., additional, Greiff, J., additional, Gurov, Y., additional, Gustafsson, L., additional, Höistad, B., additional, Ivanov, G., additional, Jacewicz, M., additional, Jiganov, E., additional, Johansson, A., additional, Johansson, T., additional, Keleta, S., additional, Khakimova, O., additional, Khoukaz, A., additional, Kilian, K., additional, Kimura, N., additional, Koch, I., additional, Kolachev, G., additional, Kren, F., additional, Kullander, S., additional, Kupść, A., additional, Kuzmin, A., additional, Kuznetsov, A., additional, Lindberg, K., additional, Marciniewski, P., additional, Meier, R., additional, Messner, O., additional, Morosov, B., additional, Nawrot, A., additional, Nefkens, B.M.K., additional, Norman, G., additional, Oelert, W., additional, Pauly, C., additional, Pettersson, H., additional, Pivovarov, A., additional, Pätzold, J., additional, Petukhov, Y., additional, Povtorejko, A., additional, Reistad, D., additional, Ruber, R.J.M.Y., additional, Sandukovsky, S., additional, Schönning, K., additional, Scobel, W., additional, Sefzick, T., additional, Shafigullin, R., additional, Shwartz, B., additional, Sidorov, V., additional, Skorodko, T., additional, Sopov, V., additional, Starostin, A., additional, Stepaniak, J., additional, Sukhanov, A., additional, Tchernyshev, V., additional, Tegnér, P.-E., additional, Thörngren Engblom, P., additional, Tikhomirov, V., additional, Toki, H., additional, Turowiecki, A., additional, Wagner, G.J., additional, Wiedner, U., additional, Wilhelmi, Z., additional, Wolke, M., additional, Yamamoto, A., additional, Yamaoka, H., additional, Zabierowski, J., additional, Zartova, I., additional, and Złomańczuk, J., additional
Published: 2008
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47. Single- and double-pion production in nucleon collisions on the nucleon and on nuclei—the ABC effect and its origin in a dibaryonic resonance

Author: Clement, H., primary, Bashkanov, M., additional, Bargholtz, C., additional, Bogoslawsky, D., additional, Calen, H., additional, Cappellaro, F., additional, Demiroers, L., additional, Doroshkevich, E., additional, Duniec, D., additional, Ekström, C., additional, Franssen, K., additional, Geren, L., additional, Gustafsson, L., additional, Höistad, B., additional, Ivanov, G., additional, Jacewicz, M., additional, Jiganov, E., additional, Johansson, T., additional, Kaskulov, M., additional, Khakimova, O., additional, Keleta, S., additional, Koch, I., additional, Kren, F., additional, Kullander, S., additional, Kupść, A., additional, Kuznetsov, A., additional, Lindberg, K., additional, Marciniewski, P., additional, Meier, R., additional, Morosov, B., additional, Pauly, C., additional, Petterson, H., additional, Petukhov, Y., additional, Povtorejko, A., additional, Pricking, A., additional, Schönning, K., additional, Scobel, W., additional, Shwartz, B., additional, Skorodko, T., additional, Sopov, V., additional, Stepeniak, J., additional, Tegner, P.-E., additional, Thörngren-Engblom, P., additional, Tikhomirov, V., additional, Wagner, G.J., additional, Wolke, M., additional, Yamamoto, A., additional, Zabierowski, J., additional, Zartova, I., additional, and Złomanczuk, J., additional
Published: 2008
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48. 200 and 300 MeV/nucleon nuclear reactions responsible for single-event effects in microelectronics

Author: Jäderström, H., primary, Murin, Yu., additional, Babain, Yu., additional, Chubarov, M., additional, Pljuschev, V., additional, Zubkov, M., additional, Nomokonov, P., additional, Olsson, N., additional, Blomgren, J., additional, Tippawan, U., additional, Westerberg, L., additional, Golubev, P., additional, Jakobsson, B., additional, Gerén, L., additional, Tegnér, P.-E., additional, Zartova, I., additional, Budzanowski, A., additional, Czech, B., additional, Skwirczynska, I., additional, Kondratiev, V., additional, Tang, H. H. K., additional, Aichelin, J., additional, Watanabe, Y., additional, and Gudima, K. K., additional
Published: 2008
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49. Measurement ofηmeson decays into lepton-antilepton pairs

Author: Berłowski, M., primary, Bargholtz, Chr., additional, Bashkanov, M., additional, Bogoslawsky, D., additional, Bondar, A., additional, Calén, H., additional, Cappellaro, F., additional, Clement, H., additional, Demirörs, L., additional, Ekström, C., additional, Fransson, K., additional, Gerén, L., additional, Gustafsson, L., additional, Höistad, B., additional, Ivanov, G., additional, Jacewicz, M., additional, Jiganov, E., additional, Johansson, T., additional, Keleta, S., additional, Koch, I., additional, Kullander, S., additional, Kupść, A., additional, Kuzmin, A., additional, Kuznetsov, A., additional, Laukhin, I. V., additional, Lindberg, K., additional, Marciniewski, P., additional, Meier, R., additional, Morosov, B., additional, Oelert, W., additional, Pauly, C., additional, Pettersson, H., additional, Petukhov, Y., additional, Povtorejko, A., additional, Ruber, R. J. M. Y., additional, Schönning, K., additional, Scobel, W., additional, Shafigullin, R., additional, Shwartz, B., additional, Skorodko, T., additional, Sopov, V., additional, Stepaniak, J., additional, Tegnér, P.-E., additional, Engblom, P. Thörngren, additional, Tikhomirov, V., additional, Turowiecki, A., additional, Wagner, G. J., additional, Wolke, M., additional, Yamamoto, A., additional, Zabierowski, J., additional, Zartova, I., additional, and Złomańczuk, J., additional
Published: 2008
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50. Measurement of the η→π+π−e+e− decay branching ratio

Author: Bargholtz, Chr., primary, Bashkanov, M., additional, Bogoslawsky, D., additional, Calén, H., additional, Cappellaro, F., additional, Clement, H., additional, Demirörs, L., additional, Ekström, C., additional, Fransson, K., additional, Gerén, L., additional, Gustafsson, L., additional, Höistad, B., additional, Ivanov, G., additional, Jacewicz, M., additional, Jiganov, E., additional, Johansson, T., additional, Keleta, S., additional, Koch, I., additional, Kullander, S., additional, Kupść, A., additional, Kuznetsov, A., additional, Laukhin, I.V., additional, Lindberg, K., additional, Marciniewski, P., additional, Meier, R., additional, Morosov, B., additional, Oelert, W., additional, Pauly, C., additional, Pettersson, H., additional, Petukhov, Y., additional, Povtorejko, A., additional, Ruber, R.J.M.Y., additional, Schönning, K., additional, Scobel, W., additional, Shafigullin, R., additional, Shwartz, B., additional, Skorodko, T., additional, Sopov, V., additional, Stepaniak, J., additional, Tchernyshev, V., additional, Tegnér, P.-E., additional, Thörngren Engblom, P., additional, Tikhomirov, V., additional, Turowiecki, A., additional, Wagner, G.J., additional, Wolke, M., additional, Yamamoto, A., additional, Zabierowski, J., additional, Zartova, I., additional, and Złomańczuk, J., additional
Published: 2007
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