Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Riisager, Karsten"'
Autor:
Riisager, Karsten
Beta decay is a well-established and efficient probe of nuclear structure and provides important information also for halo nuclei. Detailed decay studies of near-dripline nuclei are challenging, but are now feasible due to the technical progress duri
Externí odkaz:
http://arxiv.org/abs/2202.05075
Autor:
Kuhlwein, Morten, Lytje, Kristian, Fynbo, Hans Otto Uldall, Gad, Andreas, Jensen, Erik, Kirsebom, Oliver Sølund, Munch, Michael, Refsgaard, Jonas, Riisager, Karsten
The 3$\alpha$ decay of the 16.62\,MeV (2$^-$, T=1) resonance in $^{12}$C has been studied for nearly a century starting with one of the first nuclear reaction studies at the Cavendish Laboratory in the 1930s. In the hitherto latest study published a
Externí odkaz:
http://arxiv.org/abs/2109.07886
Autor:
Pfützner, Marek, Riisager, Karsten
Publikováno v:
Phys. Rev. C 97, 042501 (2018)
As proposed recently by Fornal and Grinstein, neutrons can undergo a dark matter decay mode which was not observed before. Such a decay could explain the existing discrepancy between two different methods of neutron lifetime measurements. If such neu
Externí odkaz:
http://arxiv.org/abs/1803.01334
Autor:
Munch, Michael, Kirsebom, Oliver Sølund, Swartz, Jacobus Andreas, Riisager, Karsten, Fynbo, Hans Otto Uldall
A current challenge for ab initio calculations is systems that contain large continuum contributions such as 8Be. We report on new measurements of radiative decay widths in this nucleus that test recent Green's function Monte Carlo calculations. Trad
Externí odkaz:
http://arxiv.org/abs/1802.10404
We use a sequential $R$-matrix model to describe the breakup of the Hoyle state into three $\alpha$ particles via the ground state of $^8\mathrm{Be}$. It is shown that even in a sequential picture, features resembling a direct breakup branch appear i
Externí odkaz:
http://arxiv.org/abs/1712.05251
Autor:
Röder, Marko, Adachi, Tatsuya, Aksyutina, Yulia, Alcantara, Juan, Altstadt, Sebastian, Alvarez-Pol, Hector, Ashwood, Nicholas, Atar, Leyla, Aumann, Thomas, Avdeichikov, Vladimir, Barr, M., Beceiro, Saul, Bemmerer, Daniel, Benlliure, Jose, Bertulani, Carlos, Boretzky, Konstanze, Borge, Maria J. G., Burgunder, G., Caamano, Manuel, Caesar, Christoph, Casarejos, Enrique, Catford, Wilton, Cederkall, Joakim, Chakraborty, S., Chartier, Marielle, Chulkov, Leonid, Cortina-Gil, Dolores, Crespo, Raquel, Pramanik, Ushasi Datta, Diaz-Fernandez, Paloma, Dillmann, Iris, Elekes, Zoltan, Enders, Joachim, Ershova, Olga, Estrade, A., Farinon, F., Fraile, Luis M., Freer, Martin, Freudenberger, M., Fynbo, Hans, Galaviz, Daniel, Geissel, Hans, Gernhäuser, Roman, Göbel, Kathrin, Golubev, Pavel, Diaz, Diego Gonzalez, Hagdahl, Julius, Heftrich, Tanja, Heil, Michael, Heine, Marcel, Heinz, Andreas, Henriques, Ana, Holl, Matthias, Ickert, G., Ignatov, Alexander, Jakobsson, Bo, Johansson, Hakan, Jonson, Björn, Kalantar-Nayestanaki, Nasser, Kanungo, Rituparna, Kelic-Heil, Aleksandra, Knöbel, Ronja, Kröll, Thorsten, Krücken, Reiner, Kurcewicz, J., Kurz, Nikolaus, Labiche, Marc, Langer, Christoph, Bleis, Tudi Le, Lemmon, Roy, Lepyoshkina, Olga, Lindberg, Simon, Machado, Jorge, Marganiec, Justyna, Caro, Magdalena Mostazo, Movsesyan, Alina, Najafi, Mohammad Ali, Nilsson, Thomas, Nociforo, Chiara, Panin, Valerii, Paschalis, Stefanos, Perea, Angel, Petri, Marina, Pietri, S., Plag, Ralf, Prochazka, A., Rahaman, Md. Anisur, Rastrepina, Ganna, Reifarth, Rene, Ribeiro, Guillermo, Ricciardi, M. Valentina, Rigollet, Catherine, Riisager, Karsten, Rossi, Dominic, Saez, Jose Sanchez del Rio, Savran, Deniz, Scheit, Heiko, Simon, Haik, Sorlin, Olivier, Stoica, V., Streicher, Branislav, Taylor, Jon, Tengblad, Olof, Terashima, Satoru, Thies, Ronja, Togano, Yasuhiro, Uberseder, Ethan, Van de Walle, J., Velho, Paulo, Volkov, Vasily, Wagner, Andreas, Wamers, Felix, Weick, Helmut, Weigand, Mario, Wheldon, Carl, Wilson, G., Wimmer, Christine, Winfield, J. S., Woods, Philip, Yakorev, Dmitry, Zhukov, Mikhail, Zilges, Andreas, Zuber, Kai
Publikováno v:
Phys. Rev. C 93, 065807 (2016)
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
Externí odkaz:
http://arxiv.org/abs/1606.00201
We identify and quantify systematic effects not accounted for in two previous measurements of the alpha-alpha relative-energy distribution in the beta decay of 8B, which can explain the apparent disagreement with respect to two newer measurements. Th
Externí odkaz:
http://arxiv.org/abs/1211.3558
Autor:
Kirsebom Oliver S., Alonso Irene M., Berry Tom, Borge Maria J. G., Christensen Esben R., Doherty Daniel, Fernández Paloma D., Flores Miguel M., Fynbo Hans O. U., Gallardo Mariano C., Hubbard Nicolas, Jensen Jesper H., Johansson Håkan, Jonson Björn, Lica Razvan, Lund Morten V., Martínez Angel P., Munch Michael K., Riisager Karsten, Sorlin Olivier, Swartz Jacobus A., Tengblad Olof, Vedia Victoria
Publikováno v:
EPJ Web of Conferences, Vol 165, p 01031 (2017)
We report on the preliminary results of an experimental study of the β decay of 16N, aiming to determine the branching ratio of the βα channel with a precision of ≤ 5%.
Externí odkaz:
https://doaj.org/article/1848a51dce6c4c33bd44dfddaba4fcd5
Autor:
Riisager Karsten
Publikováno v:
EPJ Web of Conferences, Vol 66, p 02090 (2014)
Beta decay in exotic nuclei can lead to multi-particle final states. This contribution discusses briefly what decay mechanisms may enter in such decays and presents, on behalf of the IS541 collaboration at ISOLDE/CERN, preliminary data from a search
Externí odkaz:
https://doaj.org/article/fc5a6f3f982049cba0b3d72d54c6bdca