Coulomb dissociation of ^{20,21}N

Marko R\"oder , Tatsuya Adachi , Yulia Aksyutina , Juan Alcantara , Sebastian Altstadt , Hector Alvarez-Pol , Nicholas Ashwood , Leyla Atar

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Thomas Aumann Vladimir Avdeichikov M. Barr Saul Beceiro Daniel Bemmerer Jose Benlliure Carlos Bertulani Konstanze Boretzky Maria J. G. Borge G. Burgunder Manuel Caamano Christoph Caesar Enrique Casarejos Wilton Catford Joakim Cederkall 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 Gernh\"auser Kathrin G\"obel Pavel Golubev Diego Gonzalez Diaz Julius Hagdahl Tanja Heftrich Michael Heil Marcel Heine Andreas Heinz Ana Henriques Matthias Holl G. Ickert Alexander Ignatov Bo Jakobsson Hakan Johansson Bj\"orn Jonson Nasser Kalantar-Nayestanaki Rituparna Kanungo Aleksandra Kelic-Heil Ronja Kn\"obel Thorsten Kr\"oll Reiner Kr\"ucken 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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classification ⚛️ nucl-ex

keywords mathrmcoulombdissociationgammadeterminedexperimentabundancebalance

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Neutron-rich light nuclei and their reactions play an important role for the creation of chemical elements. Here, data from a Coulomb dissociation experiment on $^{20,21}$N are reported. Relativistic $^{20,21}$N 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 $^{19}\mathrm{N}(\mathrm{n},\gamma)^{20}\mathrm{N}$ and $^{20}\mathrm{N}(\mathrm{n},\gamma)^{21}\mathrm{N}$ excitation functions and thermonuclear reaction rates have been determined. The $^{19}\mathrm{N}(\mathrm{n},\gamma)^{20}\mathrm{N}$ 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.

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Coulomb dissociation of ^{20,21}N

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