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Glorius, Jan ; Langer, Christoph ; Slavkovská, Zuzana ; Bott, Lukas ; Brandau, Carsten ; Brückner, Benjamin ; Blaum, Klaus ; Chen, Xiangchen ; Dababneh, Saed ; Davinson, Thomas ; Erbacher, Philipp ; Fiebiger, Stefan ; Gaßner, Tobias ; Göbel, Kathrin ; Groothuis, Mathias ; Gumberidze, Alexandre ; Gyürky, György ; Heil, Michael ; Heß, Regina ; Hensch, Roman ; Hillmann, Paula ; Hillenbrand, Pierre-Michel ; Hinrichs, Ole Djürko ; Jurado Apruzzese, Beatriz ; Kausch, Tanja ; Khodaparast, Anahita ; Kisselbach, Timo ; Klapper, Nadine ; Kozhuharov, Christophor ; Kurtulgil, Cem Deniz ; Lane, Gregory J. ; Lederer-Woods, Claudia ; Lestinsky, Michael ; Litvinov, Sergey A. ; Litvinov, Yuri A. ; Löher, Bastian ; Nolden, Fritz ; Petridis, Nikolaos ; Popp, Ulrich ; Rauscher, Thomas ; Reed, Matthew ; Reifarth, René ; Sanjari, Mohammad Shahab ; Savran, Deniz ; Simon, Haik ; Spillmann, Uwe ; Steck, Markus ; Stöhlker, Thomas ; Stumm, Julia ; Surzhykov, Andrey ; Szücs, Tamas ; Nguyen, Thien Tam ; Taremi Zadeh, Ashkan ; Thomas, Benedikt ; Torilov, Sergey Yu. ; Törnqvist, Hans Toshihide ; Träger, Michael ; Trageser, Christian ; Trotsenko, Sergiy ; Varga, László ; Volknandt, Meiko ; Weick, Helmut ; Weigand, Mario ; Wolf, Clemens ; Woods, Philip John ; Xing, Yuan Ming
We report the first measurement of low-energy proton-capture cross sections of 124Xe in a heavy-ion storage ring. 124Xe54+ ions of five different beam energies between 5.5 and 8 AMeV were stored to collide with a windowless hydrogen target. The 125Cs reaction products were directly detected. The interaction energies are located on the high energy tail of the Gamow window for hot, explosive scenarios such as supernovae and x-ray binaries. The results serve as an important test of predicted astrophysical reaction rates in this mass range. Good agreement in the prediction of the astrophysically important proton width at low energy is found, with only a 30% difference between measurement and theory. Larger deviations are found above the neutron emission threshold, where also neutron and γ widths significantly impact the cross sections. The newly established experimental method is a very powerful tool to investigate nuclear reactions on rare ion beams at low center-of-mass energies.
Göbel, Kathrin ; Adrich, Przemysław ; Altstadt, Sebastian ; Altstadt, Sebastian ; Alvarez-Pol, Héctor ; Aksouh, Farouk ; Aumann, Thomas ; Babilon, Mari ; Behr, Karl-Heinz ; Berg, Thomas ; Böhmer, Michael ; Boretzky, Konstanze ; Brünle, Adolf ; Beyer, R. ; Casarejos Ruiz, Enrique ; Chartier, Marielle ; Cortina Gil, Dolores ; Chatillon, Audrey ; Datta Pramanik, Ushasi ; Deveaux, L. ; Elvers, Michael ; Elze, Thomas W. ; Emling, Hans ; Erhard, Martin Andreas ; Ershova, Olga ; Fernández Domínguez, Beatriz ; Geissel, Hans ; Górska, Magdalena ; Heftrich, Tanja ; Heil, Michael ; Hellstroem, M. ; Ickert, Günter ; Johansson, Håkan T. ; Junghans, Arnd Rudolf ; Käppeler, Franz ; Kiselev, Oleg A. ; Klimkiewicz, Adam ; Kratz, Jens-Volker ; Kratz, Jens-Volker ; Kulessa, Reinhard ; Kurz, Nikolaus ; Labiche, Marc ; Langer, Christoph ; Le Bleis, Tudi ; Lemmon, Roy Crawford ; Lindenberg, Kai ; Litvinov, Yuri A. ; Maierbeck, Peter ; Movsesyan, Alina ; Müller, S. ; Nilsson, Thomas ; Nociforo, Chiara ; Paar, Nils ; Palit, Rudrayoti ; Paschalis, Stefanos ; Plag, Ralf ; Prokopowicz, Wawrzyniec ; Reifarth, René ; Rossi, Dominic M. ; Schnorrenberger, Linda ; Simon, Haik ; Sonnabend, Kerstin ; Sümmerer, Klaus ; Surówka, Grzegorz ; Vretenar, Dario ; Wagner, Andreas ; Walter, S. ; Waluś, Władysław ; Wamers, Felix ; Weick, Helmut ; Weigand, Mario ; Winckler, Nicolas ; Winkler, Martin ; Zilges, Andreas
The Coulomb Dissociation (CD) cross sections of the stable isotopes 92,94,100Mo and of the unstable isotope 93Mo were measured at the LAND/R3B setup at GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany. Experimental data on these isotopes may help to explain the problem of the underproduction of 92,94Mo and 96,98Ru in the models of p-process nucleosynthesis. The CD cross sections obtained for the stable Mo isotopes are in good agreement with experiments performed with real photons, thus validating the method of Coulomb Dissociation. The result for the reaction 93Mo(γ,n) is especially important since the corresponding cross section has not been measured before. A preliminary integral Coulomb Dissociation cross section of the 94Mo(γ,n) reaction is presented. Further analysis will complete the experimental database for the (γ,n) production chain of the p-isotopes of molybdenum.
Reifarth, René ; Altstadt, Sebastian ; Göbel, Kathrin ; Heftrich, Tanja ; Heil, Michael ; Koloczek, Alexander ; Langer, Christoph ; Plag, Ralf ; Pohl, M. ; Sonnabend, Kerstin ; Weigand, Mario ; Adachi, T. ; Aksouh, Farouk ; Al-Khalili, J. ; AlGarawi, M. ; AlGhamdi, S. ; Alkhazov, G. ; Alkhomashi, N. ; Alvarez-Pol, Héctor ; Alvarez-Rodriguez, R. ; Andreev, V. ; Andrei, B. ; Atar, Leyla ; Aumann, Thomas ; Avdeichikov, Vladimir ; Bacri, C. ; Bagchi, S. ; Barbieri, Carlo ; Beceiro, Saul ; Beck, C. ; Beinrucker, Clemens ; Belier, Gilbert ; Bemmerer, Daniel ; Bendel, M. ; Benlliure Anaya, Jose Fernando ; Benzoni, G. ; Berjillos, R. ; Bertini, D. ; Bertulani, Carlos A. ; Bishop, S. ; Blasi, N. ; Bloch, T. ; Blumenfeld, Y. ; Bonaccorso, A. ; Boretzky, Konstanze ; Botvina, Alexander ; Boudard, A. ; Boutachkov, P. ; Boztosun, I. ; Bracco, A. ; Brambilla, S. ; Monago, J.Briz ; Caamano, Manuel ; Caesar, Christoph ; Camera, F. ; Casarejos Ruiz, Enrique ; Catford, Wilton N. ; Cederkäll, Joakim ; Cederwall, B. ; Chartier, Marielle ; Chatillon, Audrey ; Cherciu, M. ; Chulkov, Leonid V. ; Coleman-Smith, P. ; Cortina Gil, Dolores ; Crespi, F. ; Crespo, Raquel ; Cresswell, J. ; Csatlós, Margit ; Déchery, F. ; Davids, B. ; Davinson, Thomas ; Derya, Vera ; Detistov, P. ; Díaz Fernández, Paloma ; DiJulio, D. ; Dmitry, S. ; Doré, D. ; Dueñas, J. ; Dupont, Emmeric ; Egelhof, Peter ; Egorova, I. ; Elekes, Zoltán ; Enders, Joachim ; Endres, Janis ; Ershov, S. ; Ershova, Olga ; Fernández Domínguez, Beatriz ; Fetisov, A. ; Fiori, Enrico ; Fomichev, A. ; Fonseca, M. ; Fraile, L. ; Freer, Martin ; Friese, Jürgen ; Garcia Borge, Maria José ; Galaviz Redondo, Daniel ; Gannon, S. ; Garg, U. ; Gašparić, Igor ; Gasques, L. ; Gastineau, B. ; Geissel, Hans ; Gernhäuser, Roman ; Ghosh, T. ; Gilbert, M. ; Glorius, Jan ; Golubev, Pavel ; Gorshkov, Alexander ; Gourishetty, A. ; Grigorenko, Leonid V. ; Gulyas, J. ; Haiduc, Maria ; Hammache, F. ; Harakeh, Muhsin N. ; Hass, M. ; Heine, Marcel ; Hennig, Andreas ; Henriques, Ana ; Herzberg, Rolf-Dietmar ; Holl, Matthias ; Ignatov, Alexander ; Ignatyuk, A. ; Ilieva, Stoyanka ; Ivanov, Marian ; Iwasa, N. ; Jakobsson, B. ; Johansson, Håkan T. ; Jonson, Björn ; Joshi, P. ; Junghans, Arnd Rudolf ; Jurado Apruzzese, Beatriz ; Körner, G. ; Kalantar, N. ; Kanungo, Rituparna ; Kelic-Heil, Aleksandra ; Kezzar, K. ; Khan, E. ; Khanzadeev, Alexei ; Kiselev, Oleg A. ; Kogimtzis, M. ; Körper, D. ; Kräckmann, S. ; Kröll, Thorsten ; Krücken, Reiner ; Krasznahorkay, A. ; Kratz, Jens-Volker ; Kresan, Dmytro ; Krings, Thomas ; Krumbholz, A. ; Krupko, S. ; Kulessa, Reinhard ; Kumar, Shyam ; Kurz, Nikolaus ; Kuzmin, E. ; Labiche, Marc ; Langanke, Karlheinz ; Lazarus, I. ; Bleis, T.Le ; Lederer, Claudia ; Lemasson, A. ; Lemmon, Roy Crawford ; Liberati, V. ; Litvinov, Yuri A. ; Löher, Bastian ; Herraiz, J.Lopez ; Münzenberg, G. ; Machado, Jorge ; Maev, E. ; Mahata, Kripamay ; Mancusi, D. ; Marganiec, Justyna ; Perez, M.Martinez ; Marusov, V. ; Mengoni, D. ; Million, B. ; Morcelle, V. ; Moreno, O. ; Movsesyan, Alina ; Nácher González, Enrique ; Najafi, Mohammad Ali ; Nakamura, T. ; Naqvi, F. ; Nikolski, E. ; Nilsson, Thomas ; Nociforo, Chiara ; Nolan, P. ; Novatsky, B. ; Nyman, Göran Hugo ; Ornelas, A. ; Palit, R. ; Pandit, S. ; Panin, Valerii ; Paradela Dobarro, Carlos ; Parkar, V. ; Paschalis, Stefanos ; Pawłowski, P. ; Perea Martinez, Angel ; Pereira, J. ; Petrache, C. ; Petri, Marina ; Pickstone, Simon Glynn ; Pietralla, Norbert ; Pietri, Stephane ; Pivovarov, Y. ; Potlog, P. ; Prokofiev, A. ; Rastrepina, G. ; Rauscher, Thomas ; Ribeiro Jimenez, Guillermo ; Ricciardi, Maria Valentina ; Richter, Achim ; Rigollet, Catherine ; Riisager, Karsten ; Rios, A. ; Ritter, C. ; Rodríguez Frutos, Tomás Raúl ; Rodríguez Vignote, Javier ; Röder, Marko ; Romig, Christopher ; Rossi, Dominic M. ; Roussel-Chomaz, P. ; Rout, Prakash Chandra ; Roy, S. ; Söderström, P. ; Sarkar, M.Saha ; Sakuta, S. ; Salsac, M. ; Sampson, J. ; Sanchez, J. ; Saez, del Rio ; Rosado, J.Sanchez ; Sanjari, Mohammad Shahab ; Sarriguren, P. ; Sauerwein, Anne ; Savran, Deniz ; Scheidenberger, Christoph ; Scheit, Heiko ; Schmidt, Stefan ; Schmitt, C. ; Schnorrenberger, Linda ; Schrock, P. ; Schwengner, R. ; Seddon, D. ; Sherrill, B. ; Shrivastava, A. ; Sidorchuk, S. ; Silva, Joel ; Simon, Haik ; Simpson, E. ; Singh, P. ; Slobodan, D. ; Sohler, D. ; Spieker, Mark-Christoph ; Stach, D. ; Stan, E. ; Stanoiu, M. ; Stepantsov, S. ; Stevenson, P. ; Strieder, F. ; Stuhl, László ; Suda, T. ; Sümmerer, Klaus ; Streicher, Branislav ; Taieb, Julien ; Takechi, M. ; Tanihata, I. ; Taylor, J. ; Tengblad, Olof ; Ter-Akopian, G. ; Terashima, S. ; Teubig, P. ; Thies, Ronja ; Thoennessen, M. ; Thomas, T. ; Thornhill, J. ; Thungstrom, G. ; Timar, J. ; Togano, Yasuhiro ; Tomohiro, U. ; Tornyi, T. ; Tostevin, J. ; Townsley, C. ; Trautmann, Wolfgang ; Trivedi, T. ; Typel, Stefan ; Uberseder, E. ; Udias, J. ; Uesaka, T. ; Uvarov, L. ; Vajta, Z. ; Velho, Paulo ; Vikhrov, V. ; Volknandt, Meiko ; Volkov, Vasily ; Neumann-Cosel, Peter von ; Schmid, Mirko von ; Wagner, A. ; Wamers, Felix ; Weick, Helmut ; Wells, D. ; Westerberg, L. ; Wieland, Oliver ; Wiescher, Michael ; Wimmer, Christine ; Wimmer, K. ; Winfield, John S. ; Winkel, M. ; Woods, Philip John ; Wyss, R. ; Yakorev, Dmitry ; Yavor, M. ; Zamora Cardona, Juan Carlos ; Zartova, I. ; Zerguerras, T. ; Zgura, M. ; Zhdanov, A. ; Zhukov, Mikhail V. ; Zieblinski, M. ; Zilges, Andreas ; Zuber, Kai
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.
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