Coulomb dissociation of 20,21 N

Marko Röder, Tatsuya Adachi, Yulia Aksyutina, Juan Alcantara, Sebastian Altstadt, Hector Alvarez-Pol, Nicholas Ashwood, Leyla Atar, Thomas Aumann, Vladimir Avdeichikov, M. Barr, Saul Beceiro, Daniel Bemmerer, Jose Benlliure, Carlos Bertulani, Konstanze Boretzky, Maria J. G. Borge, G. Burgunder, Manuel Caamaño, Christoph CaesarEnrique Casarejos, Wilton Catford, Joakim Cederkäll, S. Chakraborty, Marielle Chartier, Leonid Chulkov, Dolores Cortina-Gil, Raquel Crespo, Ushasi Datta Pramanik, Paloma Diaz-Fernandez, Iris Dillmann, Zoltan Elekes, Joachim Enders, Olga Ershova, A. Estrade, F. Farinon, Luis M. Fraile, Martin Freer, M. Freudenberger, Hans Fynbo, Daniel Galaviz, Hans Geissel, Roman Gernhäuser, Kathrin Göbel, Pavel Golubev, D. Gonzalez Diaz, Julius Hagdahl, Tanja Heftrich, Michael Heil, Marcel Heine, Andreas Heinz, Ana Henriques, Matthias Holl, G. Ickert, Alexander Ignatov, Bo Jakobsson, Håkan Johansson, Björn Jonson, Nasser Kalantar-Nayestanaki, Rituparna Kanungo, Aleksandra Kelic-Heil, Ronja Knöbel, Thorsten Kröll, Reiner Krücken, J. Kurcewicz, Nikolaus Kurz, Marc Labiche, Christoph Langer, Tudi Le Bleis, Roy Lemmon, Olga Lepyoshkina, Simon Lindberg, Jorge Machado, Justyna Marganiec, Magdalena Mostazo Caro, Alina Movsesyan, Mohammad Ali Najafi, Thomas Nilsson, Chiara Nociforo, Valerii Panin, Stefanos Paschalis, Angel Perea, Marina Petri, S. Pietri, Ralf Plag, A. Prochazka, Md. Anisur Rahaman, Ganna Rastrepina, Rene Reifarth, Guillermo Ribeiro, M. Valentina Ricciardi, Catherine Rigollet, Karsten Riisager, Dominic Rossi, Jose Sanchez del Rio Saez, Deniz Savran, Heiko Scheit, Haik Simon, Olivier Sorlin, V. Stoica, Branislav Streicher, Jon Taylor, Olof Tengblad, Satoru Terashima, Ronja Thies, Yasuhiro Togano, Ethan Uberseder, J. Van de Walle, Paulo Velho, Vasily Volkov, Andreas Wagner, Felix Wamers, Helmut Weick, Mario Weigand, Carl Wheldon, G. Wilson, Christine Wimmer, J. S. Winfield, Philip Woods, Dmitry Yakorev, Mikhail Zhukov, Andreas Zilges, Kai Zuber

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Abstract

Neutron-rich light nuclei and their reactions play an important role in the creation of chemical elements. Here, data from a Coulomb dissociation experiment on 20,21N are reported. Relativistic 20,21N ions impinged on a lead target and the Coulomb dissociation cross section was determined in a kinematically complete experiment. Using the detailed balance theorem, the 19N (n,γ )20N and 20N(n,γ ) 21N excitation functions and thermonuclear reaction rates have been determined. The 19N(n,γ ) 20N rate is up to a factor of 5 higher at T < 1 GK with respect to previous theoretical calculations, leading to a 10% decrease in the predicted fluorine abundance.
Original languageEnglish
Pages (from-to)065807
Number of pages1
JournalPhysical Review C
Volume93
DOIs
Publication statusPublished - 30 Jun 2016

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