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56 results on '"Giacoppo, F."'

1. Inelastic scattering of ⁷²,⁷⁴Ni off a proton target

Author: Cortés, M L, Doornenbal, P., Obertelli, A., Pietralla, N., Werner, V., Authelet, G., Baba, H., Calvet, D., Château, F., Corsi, A., Delbart, A., Gheller, J.-M., Gillibert, A., Isobe, T., Lapoux, V., Louchart, C., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Péron, C., Peyaud, A., Pollacco, E. C., Roussé, J.-Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Browne, F., Chung, L. X., Dombradi, Zs., Franchoo, S., Giacoppo, F., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Lee, J., Lettmann, M., Lozeva, R., Matsui, K., Miyazaki, T., Nishimura, S., Olivier, L., Ota, S., Patel, Z., Sahin, E., Shand, C. M., Söderström, P.-A., Stefan, I., Steppenbeck, D., Sumikama, T., Suzuki, D., Vajta, Zs., Wu, J., Xu, Z., Cortés, M L, Doornenbal, P., Obertelli, A., Pietralla, N., Werner, V., Authelet, G., Baba, H., Calvet, D., Château, F., Corsi, A., Delbart, A., Gheller, J.-M., Gillibert, A., Isobe, T., Lapoux, V., Louchart, C., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Péron, C., Peyaud, A., Pollacco, E. C., Roussé, J.-Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Browne, F., Chung, L. X., Dombradi, Zs., Franchoo, S., Giacoppo, F., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Lee, J., Lettmann, M., Lozeva, R., Matsui, K., Miyazaki, T., Nishimura, S., Olivier, L., Ota, S., Patel, Z., Sahin, E., Shand, C. M., Söderström, P.-A., Stefan, I., Steppenbeck, D., Sumikama, T., Suzuki, D., Vajta, Zs., Wu, J., and Xu, Z.
Abstract: Inelastic scattering of ⁷²,⁷⁴Ni off a proton target was performed at RIBF, RIKEN, Japan. The isotopes were produced by the fission of ²³⁸U on a thick Beryllium target and were then selected and identified on an event-by-event basis using the BigRIPS separator. Selected isotopes were focused onto the liquid hydrogen target of the MINOS device and gamma rays from the reactions were measured with the DALI2 array. The energy of the ions in the middle of the target was 213 MeV/u. Outgoing particles were identified using the ZeroDegree spectrometer. Here, we report on the current status of the data analysis and preliminary results for the proton inelastic scattering cross sections for both isotopes.
Published: 2024

2. Inelastic scattering of ⁷²,⁷⁴Ni off a proton target

Author: Cortés, M L, Doornenbal, P., Obertelli, A., Pietralla, N., Werner, V., Authelet, G., Baba, H., Calvet, D., Château, F., Corsi, A., Delbart, A., Gheller, J.-M., Gillibert, A., Isobe, T., Lapoux, V., Louchart, C., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Péron, C., Peyaud, A., Pollacco, E. C., Roussé, J.-Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Browne, F., Chung, L. X., Dombradi, Zs., Franchoo, S., Giacoppo, F., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Lee, J., Lettmann, M., Lozeva, R., Matsui, K., Miyazaki, T., Nishimura, S., Olivier, L., Ota, S., Patel, Z., Sahin, E., Shand, C. M., Söderström, P.-A., Stefan, I., Steppenbeck, D., Sumikama, T., Suzuki, D., Vajta, Zs., Wu, J., Xu, Z., Cortés, M L, Doornenbal, P., Obertelli, A., Pietralla, N., Werner, V., Authelet, G., Baba, H., Calvet, D., Château, F., Corsi, A., Delbart, A., Gheller, J.-M., Gillibert, A., Isobe, T., Lapoux, V., Louchart, C., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Péron, C., Peyaud, A., Pollacco, E. C., Roussé, J.-Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Browne, F., Chung, L. X., Dombradi, Zs., Franchoo, S., Giacoppo, F., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Lee, J., Lettmann, M., Lozeva, R., Matsui, K., Miyazaki, T., Nishimura, S., Olivier, L., Ota, S., Patel, Z., Sahin, E., Shand, C. M., Söderström, P.-A., Stefan, I., Steppenbeck, D., Sumikama, T., Suzuki, D., Vajta, Zs., Wu, J., and Xu, Z.
Abstract: Inelastic scattering of ⁷²,⁷⁴Ni off a proton target was performed at RIBF, RIKEN, Japan. The isotopes were produced by the fission of ²³⁸U on a thick Beryllium target and were then selected and identified on an event-by-event basis using the BigRIPS separator. Selected isotopes were focused onto the liquid hydrogen target of the MINOS device and gamma rays from the reactions were measured with the DALI2 array. The energy of the ions in the middle of the target was 213 MeV/u. Outgoing particles were identified using the ZeroDegree spectrometer. Here, we report on the current status of the data analysis and preliminary results for the proton inelastic scattering cross sections for both isotopes.
Published: 2024

3. Inelastic scattering of ⁷²,⁷⁴Ni off a proton target

Author: Cortés, M L, Doornenbal, P., Obertelli, A., Pietralla, N., Werner, V., Authelet, G., Baba, H., Calvet, D., Château, F., Corsi, A., Delbart, A., Gheller, J.-M., Gillibert, A., Isobe, T., Lapoux, V., Louchart, C., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Péron, C., Peyaud, A., Pollacco, E. C., Roussé, J.-Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Browne, F., Chung, L. X., Dombradi, Zs., Franchoo, S., Giacoppo, F., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Lee, J., Lettmann, M., Lozeva, R., Matsui, K., Miyazaki, T., Nishimura, S., Olivier, L., Ota, S., Patel, Z., Sahin, E., Shand, C. M., Söderström, P.-A., Stefan, I., Steppenbeck, D., Sumikama, T., Suzuki, D., Vajta, Zs., Wu, J., Xu, Z., Cortés, M L, Doornenbal, P., Obertelli, A., Pietralla, N., Werner, V., Authelet, G., Baba, H., Calvet, D., Château, F., Corsi, A., Delbart, A., Gheller, J.-M., Gillibert, A., Isobe, T., Lapoux, V., Louchart, C., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Péron, C., Peyaud, A., Pollacco, E. C., Roussé, J.-Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Browne, F., Chung, L. X., Dombradi, Zs., Franchoo, S., Giacoppo, F., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Lee, J., Lettmann, M., Lozeva, R., Matsui, K., Miyazaki, T., Nishimura, S., Olivier, L., Ota, S., Patel, Z., Sahin, E., Shand, C. M., Söderström, P.-A., Stefan, I., Steppenbeck, D., Sumikama, T., Suzuki, D., Vajta, Zs., Wu, J., and Xu, Z.
Abstract: Inelastic scattering of ⁷²,⁷⁴Ni off a proton target was performed at RIBF, RIKEN, Japan. The isotopes were produced by the fission of ²³⁸U on a thick Beryllium target and were then selected and identified on an event-by-event basis using the BigRIPS separator. Selected isotopes were focused onto the liquid hydrogen target of the MINOS device and gamma rays from the reactions were measured with the DALI2 array. The energy of the ions in the middle of the target was 213 MeV/u. Outgoing particles were identified using the ZeroDegree spectrometer. Here, we report on the current status of the data analysis and preliminary results for the proton inelastic scattering cross sections for both isotopes.
Published: 2024

4. Inelastic scattering of ⁷²,⁷⁴Ni off a proton target

Author: Cortés, M L, Doornenbal, P., Obertelli, A., Pietralla, N., Werner, V., Authelet, G., Baba, H., Calvet, D., Château, F., Corsi, A., Delbart, A., Gheller, J.-M., Gillibert, A., Isobe, T., Lapoux, V., Louchart, C., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Péron, C., Peyaud, A., Pollacco, E. C., Roussé, J.-Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Browne, F., Chung, L. X., Dombradi, Zs., Franchoo, S., Giacoppo, F., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Lee, J., Lettmann, M., Lozeva, R., Matsui, K., Miyazaki, T., Nishimura, S., Olivier, L., Ota, S., Patel, Z., Sahin, E., Shand, C. M., Söderström, P.-A., Stefan, I., Steppenbeck, D., Sumikama, T., Suzuki, D., Vajta, Zs., Wu, J., Xu, Z., Cortés, M L, Doornenbal, P., Obertelli, A., Pietralla, N., Werner, V., Authelet, G., Baba, H., Calvet, D., Château, F., Corsi, A., Delbart, A., Gheller, J.-M., Gillibert, A., Isobe, T., Lapoux, V., Louchart, C., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Péron, C., Peyaud, A., Pollacco, E. C., Roussé, J.-Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Browne, F., Chung, L. X., Dombradi, Zs., Franchoo, S., Giacoppo, F., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Lee, J., Lettmann, M., Lozeva, R., Matsui, K., Miyazaki, T., Nishimura, S., Olivier, L., Ota, S., Patel, Z., Sahin, E., Shand, C. M., Söderström, P.-A., Stefan, I., Steppenbeck, D., Sumikama, T., Suzuki, D., Vajta, Zs., Wu, J., and Xu, Z.
Abstract: Inelastic scattering of ⁷²,⁷⁴Ni off a proton target was performed at RIBF, RIKEN, Japan. The isotopes were produced by the fission of ²³⁸U on a thick Beryllium target and were then selected and identified on an event-by-event basis using the BigRIPS separator. Selected isotopes were focused onto the liquid hydrogen target of the MINOS device and gamma rays from the reactions were measured with the DALI2 array. The energy of the ions in the middle of the target was 213 MeV/u. Outgoing particles were identified using the ZeroDegree spectrometer. Here, we report on the current status of the data analysis and preliminary results for the proton inelastic scattering cross sections for both isotopes.
Published: 2024

5. Spectroscopy along flerovium decay chains: Discovery of 280Ds and an excited state in 282Cn

Author: Såmark-Roth, Anton, Cox, Daniel, Rudolph, Dirk, Sarmiento Pico, Luis, Carlsson, Gillis, Egido, J. L., Golubev, Pavel, Heery, J.A.M., Yakushev, Alexander, Åberg, Sven, Albers, Helena M., Albertsson, Martin, Block, M., Brand, H., Calverley, T., Cantemir, R., Clark, Roderick M., Düllmann, Ch. E., Eberth, J, Fahlander, Claes, Forsberg, Ulrika, Gates, J. M., Giacoppo, F., Götz, Michael, Götz, Stefan, Herzberg, R.-D., Hrabar, Yuliia, Jäger, E., Judson, D., Khuyagbaatar, J., Kindler, Birgit, Kojouharov, I., Kratz, Jens-Volker, Krier, J., Kurz, N., Lens, L., Ljungberg, Jimmy, Lommel, Bettina, Louko, J., Meyer, Carl-Christian, Mistry, A., Mokry, C., Papadakis, P., Parr, E., Pore, J. L., Ragnarsson, Ingemar, Runke, J., Schädel, Matthias, Schaffner, H., Schausten, B., Shaughnessy, D. A., Thörle-Pospiech, P., Trautmann, N., Uusitalo, J., Såmark-Roth, Anton, Cox, Daniel, Rudolph, Dirk, Sarmiento Pico, Luis, Carlsson, Gillis, Egido, J. L., Golubev, Pavel, Heery, J.A.M., Yakushev, Alexander, Åberg, Sven, Albers, Helena M., Albertsson, Martin, Block, M., Brand, H., Calverley, T., Cantemir, R., Clark, Roderick M., Düllmann, Ch. E., Eberth, J, Fahlander, Claes, Forsberg, Ulrika, Gates, J. M., Giacoppo, F., Götz, Michael, Götz, Stefan, Herzberg, R.-D., Hrabar, Yuliia, Jäger, E., Judson, D., Khuyagbaatar, J., Kindler, Birgit, Kojouharov, I., Kratz, Jens-Volker, Krier, J., Kurz, N., Lens, L., Ljungberg, Jimmy, Lommel, Bettina, Louko, J., Meyer, Carl-Christian, Mistry, A., Mokry, C., Papadakis, P., Parr, E., Pore, J. L., Ragnarsson, Ingemar, Runke, J., Schädel, Matthias, Schaffner, H., Schausten, B., Shaughnessy, D. A., Thörle-Pospiech, P., Trautmann, N., and Uusitalo, J.
Abstract: A nuclear spectroscopy experiment was conducted to study α-decay chains stemming from isotopes of flerovium (element Z=114). An upgraded TASISpec decay station was placed behind the gas-filled separator TASCA at the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, Germany. The fusion-evaporation reactions 48Ca+242Pu and 48Ca+244Pu provided a total of 32 flerovium-candidate decay chains, of which two and eleven were firmly assigned to 286Fl and 288Fl, respectively. A prompt coincidence between a 9.60(1)-MeV α-particle event and a 0.36(1)-MeV conversion electron marked the first observation of an excited state in an even-even isotope of the heaviest man-made elements, namely 282Cn. Spectroscopy of 288Fl decay chains fixed Qα=10.06(1) MeV. In one case, a Qα=9.46(1)-MeV decay from 284Cn into 280Ds was observed, with 280Ds fissioning after only 518 μs. The impact of these findings, aggregated with existing data on decay chains of 286,288Fl, on the size of an anticipated shell gap at proton number Z=114 is discussed in light of predictions from two beyond-mean-field calculations, which take into account triaxial deformation.
Published: 2021

6. Spectroscopy along Flerovium Decay Chains: Discovery of (280)Ds and an Excited State in (282)Cn

Author: Samark-Roth, A., Cox, D. M., Rudolph, D., Sarmiento, L. G., Carlsson, B. G., Egido, J. L., Golubev, P., Heery, J., Yakushev, A., Aberg, S., Albers, H. M., Albertsson, M., Block, M., Brand, H., Calverley, T., Cantemir, R., Clark, R. M., Duellmann, Ch E., Eberth, J., Fahlander, C., Forsberg, U., Gates, J. M., Giacoppo, F., Goetz, M., Goetz, S., Herzberg, R-D, Hrabar, Y., Jaeger, E., Judson, D., Khuyagbaatar, J., Kindler, B., Kojouharov, I, Kratz, J., V, Krier, J., Kurz, N., Lens, L., Ljungberg, J., Lommel, B., Louko, J., Meyer, C-C, Mistry, A., Mokry, C., Papadakis, P., Parr, E., Pore, J. L., Ragnarsson, I, Runke, J., Schaedel, M., Schaffner, H., Schausten, B., Shaughnessy, D. A., Thoerle-Pospiech, P., Trautmann, N., Uusitalo, J., Samark-Roth, A., Cox, D. M., Rudolph, D., Sarmiento, L. G., Carlsson, B. G., Egido, J. L., Golubev, P., Heery, J., Yakushev, A., Aberg, S., Albers, H. M., Albertsson, M., Block, M., Brand, H., Calverley, T., Cantemir, R., Clark, R. M., Duellmann, Ch E., Eberth, J., Fahlander, C., Forsberg, U., Gates, J. M., Giacoppo, F., Goetz, M., Goetz, S., Herzberg, R-D, Hrabar, Y., Jaeger, E., Judson, D., Khuyagbaatar, J., Kindler, B., Kojouharov, I, Kratz, J., V, Krier, J., Kurz, N., Lens, L., Ljungberg, J., Lommel, B., Louko, J., Meyer, C-C, Mistry, A., Mokry, C., Papadakis, P., Parr, E., Pore, J. L., Ragnarsson, I, Runke, J., Schaedel, M., Schaffner, H., Schausten, B., Shaughnessy, D. A., Thoerle-Pospiech, P., Trautmann, N., and Uusitalo, J.
Abstract: A nuclear spectroscopy experiment was conducted to study a-decay chains stemming from isotopes of flerovium (clement Z = 114). An upgraded TASISpec decay station was placed behind the gas-filled separator TASCA at the GSI Helmholtzzentrum fiir Schwerionenforschung in Darmstadt, Germany. The fusion-evaporation reactions 48(Ca) + 242(pu) and 48(Ca) + 244(Pu) provided a total of 32 flerovium-candidate decay chains, of which two and eleven were firmly assigned to H-286 and (288)Fl, respectively. A prompt coincidence between a 9.60(1)-MeV alpha particle event and a 0.36(1)-MeV conversion electron marked the first observation of an excited state in an even-even isotope of the heaviest man-made elements, namely 282 Cn. Spectroscopy of 288 F1 decay chains fixed Q(alpha) = 10.06(1) MeV. In one case, a Q(alpha) = 9.46(1)-MeV decay from 284 01 into 280 Ds was observed, with (280)Ds fissioning after only 518 its. The impact of these findings, aggregated with existing data on decay chains of (286,288)Fl, on the size of an anticipated shell gap at proton number Z = 114 is discussed in light of predictions from two beyond-mean-field calculations, which take into account triaxial deformation.
Published: 2021

7. Spectroscopy along Flerovium Decay Chains: Discovery of (280)Ds and an Excited State in (282)Cn

Author: Samark-Roth, A., Cox, D. M., Rudolph, D., Sarmiento, L. G., Carlsson, B. G., Egido, J. L., Golubev, P., Heery, J., Yakushev, A., Aberg, S., Albers, H. M., Albertsson, M., Block, M., Brand, H., Calverley, T., Cantemir, R., Clark, R. M., Duellmann, Ch E., Eberth, J., Fahlander, C., Forsberg, U., Gates, J. M., Giacoppo, F., Goetz, M., Goetz, S., Herzberg, R-D, Hrabar, Y., Jaeger, E., Judson, D., Khuyagbaatar, J., Kindler, B., Kojouharov, I, Kratz, J., V, Krier, J., Kurz, N., Lens, L., Ljungberg, J., Lommel, B., Louko, J., Meyer, C-C, Mistry, A., Mokry, C., Papadakis, P., Parr, E., Pore, J. L., Ragnarsson, I, Runke, J., Schaedel, M., Schaffner, H., Schausten, B., Shaughnessy, D. A., Thoerle-Pospiech, P., Trautmann, N., Uusitalo, J., Samark-Roth, A., Cox, D. M., Rudolph, D., Sarmiento, L. G., Carlsson, B. G., Egido, J. L., Golubev, P., Heery, J., Yakushev, A., Aberg, S., Albers, H. M., Albertsson, M., Block, M., Brand, H., Calverley, T., Cantemir, R., Clark, R. M., Duellmann, Ch E., Eberth, J., Fahlander, C., Forsberg, U., Gates, J. M., Giacoppo, F., Goetz, M., Goetz, S., Herzberg, R-D, Hrabar, Y., Jaeger, E., Judson, D., Khuyagbaatar, J., Kindler, B., Kojouharov, I, Kratz, J., V, Krier, J., Kurz, N., Lens, L., Ljungberg, J., Lommel, B., Louko, J., Meyer, C-C, Mistry, A., Mokry, C., Papadakis, P., Parr, E., Pore, J. L., Ragnarsson, I, Runke, J., Schaedel, M., Schaffner, H., Schausten, B., Shaughnessy, D. A., Thoerle-Pospiech, P., Trautmann, N., and Uusitalo, J.
Abstract: A nuclear spectroscopy experiment was conducted to study a-decay chains stemming from isotopes of flerovium (clement Z = 114). An upgraded TASISpec decay station was placed behind the gas-filled separator TASCA at the GSI Helmholtzzentrum fiir Schwerionenforschung in Darmstadt, Germany. The fusion-evaporation reactions 48(Ca) + 242(pu) and 48(Ca) + 244(Pu) provided a total of 32 flerovium-candidate decay chains, of which two and eleven were firmly assigned to H-286 and (288)Fl, respectively. A prompt coincidence between a 9.60(1)-MeV alpha particle event and a 0.36(1)-MeV conversion electron marked the first observation of an excited state in an even-even isotope of the heaviest man-made elements, namely 282 Cn. Spectroscopy of 288 F1 decay chains fixed Q(alpha) = 10.06(1) MeV. In one case, a Q(alpha) = 9.46(1)-MeV decay from 284 01 into 280 Ds was observed, with (280)Ds fissioning after only 518 its. The impact of these findings, aggregated with existing data on decay chains of (286,288)Fl, on the size of an anticipated shell gap at proton number Z = 114 is discussed in light of predictions from two beyond-mean-field calculations, which take into account triaxial deformation.
Published: 2021

8. Spectroscopic Tools Applied to Flerovium Decay Chains

Author: Cox, D. M., Såmark-Roth, A., Rudolph, D., Sarmiento, L.G., Fahlander, C., Forsberg, U., Golubev, P., Heery, J.A.M., Yakushev, A., Albers, H. M., Block, M., Brand, H., Clark, R.M., Düllmann, Ch.E., Eberth, J., Gates, J.M., Giacoppo, F., Götz, M., Götz, S., Herzberg, R.-D., Jäger, E., Kindler, B., Khuyagbaatar, J., Kojouharov, I., Kratz, J.V., Krier, J., Kurz, N., Lens, L., Lommel, B., Mistry, A., Meyer, C.-C., Mokry, C., Papadakis, P., Pore, J.L., Runke, J., Thörle-Pospiech, P., Trautmann, N., Schaffner, H, Schausten, B., Uusitalo, J., Cox, D. M., Såmark-Roth, A., Rudolph, D., Sarmiento, L.G., Fahlander, C., Forsberg, U., Golubev, P., Heery, J.A.M., Yakushev, A., Albers, H. M., Block, M., Brand, H., Clark, R.M., Düllmann, Ch.E., Eberth, J., Gates, J.M., Giacoppo, F., Götz, M., Götz, S., Herzberg, R.-D., Jäger, E., Kindler, B., Khuyagbaatar, J., Kojouharov, I., Kratz, J.V., Krier, J., Kurz, N., Lens, L., Lommel, B., Mistry, A., Meyer, C.-C., Mokry, C., Papadakis, P., Pore, J.L., Runke, J., Thörle-Pospiech, P., Trautmann, N., Schaffner, H, Schausten, B., and Uusitalo, J.
Abstract: An upgraded TASISpec setup, with the addition of a veto DSSD and the new Compex detector-germanium array, has been employed with the gas-filled recoil separator TASCA at the GSI Helmholtzzentrum für Schwerionenforschung Darmstadt, to study flerovium (element 114) decay chains. The detector upgrades along with development of new analytical techniques have improved the sensitivity of the TASISpec setup for measuring α-photon coincidences. These improvements have been assessed with test reactions. The reaction 48Ca+206,207Pb was used for verification of experimental parameters such as transmission to implantation DSSD and target-segment to α-decay correlations. The reaction 48Ca+ natHf was used to produce several short-lived nuclei with multiple-α decay chains to investigate pile-up event deconvolution.
Published: 2020

9. Sequential Nature of (p,3p) Two-Proton Knockout from Neutron-Rich Nuclei

Author: Frotscher, A., Gomez-Ramos, M., Obertelli, A., Doornenbal, P., Authelet, G., Baba, H., Calvet, D., Chateau, F., Chen, S., Corsi, A., Delbart, A., Gheller, J-M, Giganon, A., Gillibert, A., Isobe, T., Lapoux, V, Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Paul, N., Peron, C., Peyaud, A., Pollacco, E. C., Rousse, J-Y, Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Shimizu, N., Steppenbeck, D., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Ando, T., Arici, T., Blazhev, A., Browne, F., Bruce, A. M., Carroll, R., Chung, L. X., Cortes, M. L., Dewald, M., Ding, B., Dombradi, Zs, Flavigny, F., Franchoo, S., Giacoppo, F., Groska, M., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Jungclaus, A., Lee, J., Lettmann, M., Linh, B. D., Liu, J., Liu, Z., Lizarazo, C., Louchart, C., Lozeva, R., Matsui, K., Miyazaki, T., Moschner, K., Nagamine, S., Nakatsuka, N., Nita, C., Nishimura, S., Nobs, C. R., Olivier, L., Ota, S., Patel, Z., Podolyak, Zs, Rudigier, M., Sahin, E., Saito, T. Y., Shand, C., Soderstrom, P-A, Stefan, I. G., Sumikama, T., Suzuki, D., Orlandi, R., Vaquero, V., Vajta, Zs, Werner, V, Wimmer, K., Wu, J., Xu, Z., Frotscher, A., Gomez-Ramos, M., Obertelli, A., Doornenbal, P., Authelet, G., Baba, H., Calvet, D., Chateau, F., Chen, S., Corsi, A., Delbart, A., Gheller, J-M, Giganon, A., Gillibert, A., Isobe, T., Lapoux, V, Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Paul, N., Peron, C., Peyaud, A., Pollacco, E. C., Rousse, J-Y, Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Shimizu, N., Steppenbeck, D., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Ando, T., Arici, T., Blazhev, A., Browne, F., Bruce, A. M., Carroll, R., Chung, L. X., Cortes, M. L., Dewald, M., Ding, B., Dombradi, Zs, Flavigny, F., Franchoo, S., Giacoppo, F., Groska, M., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Jungclaus, A., Lee, J., Lettmann, M., Linh, B. D., Liu, J., Liu, Z., Lizarazo, C., Louchart, C., Lozeva, R., Matsui, K., Miyazaki, T., Moschner, K., Nagamine, S., Nakatsuka, N., Nita, C., Nishimura, S., Nobs, C. R., Olivier, L., Ota, S., Patel, Z., Podolyak, Zs, Rudigier, M., Sahin, E., Saito, T. Y., Shand, C., Soderstrom, P-A, Stefan, I. G., Sumikama, T., Suzuki, D., Orlandi, R., Vaquero, V., Vajta, Zs, Werner, V, Wimmer, K., Wu, J., and Xu, Z.
Abstract: Twenty-one two-proton knockout (p, 3p) cross sections were measured from neutron-rich nuclei at similar to 250 MeV/nucleon in inverse kinematics. The angular distribution of the three emitted protons was determined for the first time, demonstrating that the (p, 3p) kinematics are consistent with two sequential proton-proton collisions within the projectile nucleus. Ratios of (p, 3p) over (p, 2p) inclusive cross sections follow the trend of other many-nucleon removal reactions, further reinforcing the sequential nature of (p, 3p) in neutron-rich nuclei.
Published: 2020

10. Sequential Nature of (p,3p) Two-Proton Knockout from Neutron-Rich Nuclei

Author: Frotscher, A., Gomez-Ramos, M., Obertelli, A., Doornenbal, P., Authelet, G., Baba, H., Calvet, D., Chateau, F., Chen, S., Corsi, A., Delbart, A., Gheller, J-M, Giganon, A., Gillibert, A., Isobe, T., Lapoux, V, Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Paul, N., Peron, C., Peyaud, A., Pollacco, E. C., Rousse, J-Y, Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Shimizu, N., Steppenbeck, D., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Ando, T., Arici, T., Blazhev, A., Browne, F., Bruce, A. M., Carroll, R., Chung, L. X., Cortes, M. L., Dewald, M., Ding, B., Dombradi, Zs, Flavigny, F., Franchoo, S., Giacoppo, F., Groska, M., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Jungclaus, A., Lee, J., Lettmann, M., Linh, B. D., Liu, J., Liu, Z., Lizarazo, C., Louchart, C., Lozeva, R., Matsui, K., Miyazaki, T., Moschner, K., Nagamine, S., Nakatsuka, N., Nita, C., Nishimura, S., Nobs, C. R., Olivier, L., Ota, S., Patel, Z., Podolyak, Zs, Rudigier, M., Sahin, E., Saito, T. Y., Shand, C., Soderstrom, P-A, Stefan, I. G., Sumikama, T., Suzuki, D., Orlandi, R., Vaquero, V., Vajta, Zs, Werner, V, Wimmer, K., Wu, J., Xu, Z., Frotscher, A., Gomez-Ramos, M., Obertelli, A., Doornenbal, P., Authelet, G., Baba, H., Calvet, D., Chateau, F., Chen, S., Corsi, A., Delbart, A., Gheller, J-M, Giganon, A., Gillibert, A., Isobe, T., Lapoux, V, Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Paul, N., Peron, C., Peyaud, A., Pollacco, E. C., Rousse, J-Y, Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Shimizu, N., Steppenbeck, D., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Ando, T., Arici, T., Blazhev, A., Browne, F., Bruce, A. M., Carroll, R., Chung, L. X., Cortes, M. L., Dewald, M., Ding, B., Dombradi, Zs, Flavigny, F., Franchoo, S., Giacoppo, F., Groska, M., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Jungclaus, A., Lee, J., Lettmann, M., Linh, B. D., Liu, J., Liu, Z., Lizarazo, C., Louchart, C., Lozeva, R., Matsui, K., Miyazaki, T., Moschner, K., Nagamine, S., Nakatsuka, N., Nita, C., Nishimura, S., Nobs, C. R., Olivier, L., Ota, S., Patel, Z., Podolyak, Zs, Rudigier, M., Sahin, E., Saito, T. Y., Shand, C., Soderstrom, P-A, Stefan, I. G., Sumikama, T., Suzuki, D., Orlandi, R., Vaquero, V., Vajta, Zs, Werner, V, Wimmer, K., Wu, J., and Xu, Z.
Abstract: Twenty-one two-proton knockout (p, 3p) cross sections were measured from neutron-rich nuclei at similar to 250 MeV/nucleon in inverse kinematics. The angular distribution of the three emitted protons was determined for the first time, demonstrating that the (p, 3p) kinematics are consistent with two sequential proton-proton collisions within the projectile nucleus. Ratios of (p, 3p) over (p, 2p) inclusive cross sections follow the trend of other many-nucleon removal reactions, further reinforcing the sequential nature of (p, 3p) in neutron-rich nuclei.
Published: 2020

11. The radiative width of the Hoyle state from $\gamma$-ray spectroscopy

Author: Kibédi, T., Alshahrani, B., Stuchbery, A. E., Larsen, A. C., Görgen, A., Siem, S., Guttormsen, M., Giacoppo, F., Morales, A. I., Sahin, E., Tveten, G. M., Garrote, F. L. Bello, Campo, L. Crespo, Eriksen, T. K., Klintefjord, M., Maharramova, S., Nyhus, H. -T., Tornyi, T. G., Renstrøm, T., Paulsen, W., Kibédi, T., Alshahrani, B., Stuchbery, A. E., Larsen, A. C., Görgen, A., Siem, S., Guttormsen, M., Giacoppo, F., Morales, A. I., Sahin, E., Tveten, G. M., Garrote, F. L. Bello, Campo, L. Crespo, Eriksen, T. K., Klintefjord, M., Maharramova, S., Nyhus, H. -T., Tornyi, T. G., Renstrøm, T., and Paulsen, W.
Abstract: The cascading 3.21 MeV and 4.44 MeV electric quadrupole transitions have been observed from the Hoyle state at 7.65 MeV excitation energy in $^{12}$C, excited by the $^{12}$C(p,p$^{\prime}$) reaction at 10.7 MeV proton energy. From the proton-$\gamma$-$\gamma$ triple coincidence data, a value of ${\Gamma_{\rm rad}}/{\Gamma}=6.2(6) \times 10^{-4}$ was obtained for the radiative branching ratio. Using our results, together with ${\Gamma_{\pi}^{E0}}/{\Gamma}$ from Eriksen et al., Phys. Rev. C 102, 024320 and the currently adopted $\Gamma_{\pi}(E0)$ values, the radiative width of the Hoyle state is determined as $\Gamma_{\rm rad}=5.1(6) \times 10^{-3}$ eV. This value is about 34% higher than the currently adopted value and will impact on models of stellar evolution and nucleosynthesis., Comment: 6 pages, 6 figures
Published: 2020
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12. Research of the NUSTAR departments : SHE departments and HIM SHE section

Author: Leifels, Yvonne, Große, Katrin, Block, Michael, Düllmann, Christoph Emanuel, Andelic, B., Boehland, S., Chauveau, P., Chenmarev, S., Chhetri, P., Giacoppo, F., Götz, M., Götz, S., Haas, R., Heßberger, F. P., Kaleja, O., Khuyagbaatar, J., Kieck, T., Lohse, S., Meyer, C.-C., Mistry, A. K., Nothhelfer, S., Pershina, V., Raeder, Sebastian, Renisch, D., Rudolph, Dirk, Yakushev, Aleaxander, Leifels, Yvonne, Große, Katrin, Block, Michael, Düllmann, Christoph Emanuel, Andelic, B., Boehland, S., Chauveau, P., Chenmarev, S., Chhetri, P., Giacoppo, F., Götz, M., Götz, S., Haas, R., Heßberger, F. P., Kaleja, O., Khuyagbaatar, J., Kieck, T., Lohse, S., Meyer, C.-C., Mistry, A. K., Nothhelfer, S., Pershina, V., Raeder, Sebastian, Renisch, D., Rudolph, Dirk, and Yakushev, Aleaxander
Abstract: The SHE departments devoted to the research of superheavy elements, operate the recoil separators SHIP and TASCA and their ancillary installations including SHIPTRAP and a laser spectroscopy setup at SHIP as well as chemistry and nuclear spectroscopy setups at TASCA. In 2019, the activities at GSI focused on the UNILAC beamtime within the FAIR Phase-0 program and on the analysis of data obtained in prior beamtimes. At HIM, the advancement of actinide sample preparation, manipulation, and characterization for various applications was most central. In addition, technical developments, for example for single-ion mass measurements, have been performed.
Published: 2020

13. Nuclear level densities and γ-ray strength functions of 180,181,182Ta

Author: Brits, C.P., Malatji, K.L., Wiedeking, M., Kheswa, B.V., Goriely, Stéphane, Bello Garrote, F.L., Bleuel, D.L., Giacoppo, F, Görgen, Andreas, Guttormsen, Magne, Hadynska-Klek, K., Hagen, T.W., Hilaire, Stéphane, Ingeberg, V. W., Jia, H., Klintefjord, M., Larsen, Ann-Cecilie, Majola, S.N.T., Papka, P., Péru, S., Qi, B., Renstrøm, Therese, Rose, S.J., Sahin, E, Siem, Sunniva, Tveten, G.M., Zeiser, Fabio, Brits, C.P., Malatji, K.L., Wiedeking, M., Kheswa, B.V., Goriely, Stéphane, Bello Garrote, F.L., Bleuel, D.L., Giacoppo, F, Görgen, Andreas, Guttormsen, Magne, Hadynska-Klek, K., Hagen, T.W., Hilaire, Stéphane, Ingeberg, V. W., Jia, H., Klintefjord, M., Larsen, Ann-Cecilie, Majola, S.N.T., Papka, P., Péru, S., Qi, B., Renstrøm, Therese, Rose, S.J., Sahin, E, Siem, Sunniva, Tveten, G.M., and Zeiser, Fabio
Abstract: info:eu-repo/semantics/published
Published: 2019

14. Re-estimation of 180Ta nucleosynthesis in light of newly constrained reaction rates

Author: Malatji, K.L., Wiedeking, M., Goriely, Stéphane, Brits, C.P., Kheswa, B.V., Bello Garrote, F.L., Bleuel, D.L., Giacoppo, F, Görgen, Andreas, Guttormsen, Magne, Hadynska-Klek, K., Hagen, T.W., Ingeberg, V. W., Klintefjord, M., Larsen, Ann-Cecilie, Papka, P., Renstrøm, Therese, Sahin, E, Siem, Sunniva, Siess, Lionel, Tveten, G. M., Zeiser, F., Malatji, K.L., Wiedeking, M., Goriely, Stéphane, Brits, C.P., Kheswa, B.V., Bello Garrote, F.L., Bleuel, D.L., Giacoppo, F, Görgen, Andreas, Guttormsen, Magne, Hadynska-Klek, K., Hagen, T.W., Ingeberg, V. W., Klintefjord, M., Larsen, Ann-Cecilie, Papka, P., Renstrøm, Therese, Sahin, E, Siem, Sunniva, Siess, Lionel, Tveten, G. M., and Zeiser, F.
Abstract: Recent measurements of the nuclear level densities and γ-ray strength functions below the neutron thresholds in 180,181,182Ta are used as input in the nuclear reaction code TALYS. These experimental average quantities are utilized in the calculations of the 179,180,181Ta radiative neutron capture cross sections. From the latter, astrophysical Maxwellian-averaged (n,γ) cross sections (MACS) and reaction rates are extracted, which in turn are used in large astrophysical network calculations to probe the production mechanism of 180 Ta. These calculations are performed for two scenarios, the s-process production of 180,181Ta in Asymptotic Giant Branch (AGB) stars and the p-process nucleosynthesis of 180Tam in Type-II supernovae. Based on the results from this work, the s-process in stellar evolution is considered negligible in the production of 180Tam whereas 181Ta is partially produced by AGB stars. The new measurements strongly constrain the production and destruction rates of 180Tam at p-process temperatures and confirm significant production of nature’s rarest stable isotope 180Tam by the p-process., SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2019

15. Prominence of Pairing in Inclusive (p,2p) and (p,pn) Cross Sections from Neutron-Rich Nuclei

Author: Paul, N., Obertelli, A., Bertulani, C. A., Corsi, A., Doornenbal, P., Rodriguez-Sanchez, J. L., Authelet, G., Baba, H., Calvet, D., Chateau, F., Chen, S., Delbart, A., Gheller, J. -M., Giganon, A., Gillibert, A., Isobe, T., Lapoux, V., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Peron, C., Peyaud, A., Pollacco, E. C., Rousse, J. -Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Steppenbeck, D., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Ando, T., Arici, T., Blazhev, A., Browne, F., Bruce, A. M., Carroll, R., Chung, L. X., Cortes, M. L., Dewald, M., Ding, B., Dombradi, Zs., Flavigny, F., Franchoo, S., Giacoppo, F., Gorska, M., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Jungclaus, A., Lee, J., Lettmann, M., Linh, B. D., Liu, J., Liu, Z., Lizarazo, C., Louchart, C., Lozeva, R., Matsui, K., Miyazaki, T., Moschner, K., Nagamine, S., Nakatsuka, N., Nita, C., Nishimura, S., Nobs, C. R., Olivier, L., Ota, S., Patel, Z., Podolyak, Zs., Rudigier, M., Sahin, E., Saito, T. Y., Shand, C., Soderstrom, P. -A., Stefan, I. G., Sumikama, T., Suzuki, D., Orlandi, R., Vaquero, V., Vajta, Zs., Werner, V., Wimmer, K., Wu, J., Xu, Z., Paul, N., Obertelli, A., Bertulani, C. A., Corsi, A., Doornenbal, P., Rodriguez-Sanchez, J. L., Authelet, G., Baba, H., Calvet, D., Chateau, F., Chen, S., Delbart, A., Gheller, J. -M., Giganon, A., Gillibert, A., Isobe, T., Lapoux, V., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Peron, C., Peyaud, A., Pollacco, E. C., Rousse, J. -Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Steppenbeck, D., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Ando, T., Arici, T., Blazhev, A., Browne, F., Bruce, A. M., Carroll, R., Chung, L. X., Cortes, M. L., Dewald, M., Ding, B., Dombradi, Zs., Flavigny, F., Franchoo, S., Giacoppo, F., Gorska, M., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Jungclaus, A., Lee, J., Lettmann, M., Linh, B. D., Liu, J., Liu, Z., Lizarazo, C., Louchart, C., Lozeva, R., Matsui, K., Miyazaki, T., Moschner, K., Nagamine, S., Nakatsuka, N., Nita, C., Nishimura, S., Nobs, C. R., Olivier, L., Ota, S., Patel, Z., Podolyak, Zs., Rudigier, M., Sahin, E., Saito, T. Y., Shand, C., Soderstrom, P. -A., Stefan, I. G., Sumikama, T., Suzuki, D., Orlandi, R., Vaquero, V., Vajta, Zs., Werner, V., Wimmer, K., Wu, J., and Xu, Z.
Abstract: Fifty-five inclusive single nucleon-removal cross sections from medium mass neutron-rich nuclei impinging on a hydrogen target at similar to 250 MeV/nucleon are measured at the RIKEN Radioactive Isotope Beam Factory. Systematically higher cross sections are found for proton removal from nuclei with an even number of protons as compared to odd-proton number projectiles for a given neutron separation energy. Neutron removal cross sections display no even-odd splitting, contrary to nuclear cascade model predictions. Both effects are understood through simple considerations of neutron separation energies and bound state level densities originating in pairing correlations in the daughter nuclei. These conclusions are supported by comparison with semimicroscopic model predictions, highlighting the enhanced role of low-lying level densities in nucleon-removal cross sections from loosely bound nuclei.
Published: 2019

16. Prominence of Pairing in Inclusive (p,2p) and (p,pn) Cross Sections from Neutron-Rich Nuclei

Author: Paul, N., Obertelli, A., Bertulani, C. A., Corsi, A., Doornenbal, P., Rodriguez-Sanchez, J. L., Authelet, G., Baba, H., Calvet, D., Chateau, F., Chen, S., Delbart, A., Gheller, J. -M., Giganon, A., Gillibert, A., Isobe, T., Lapoux, V., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Peron, C., Peyaud, A., Pollacco, E. C., Rousse, J. -Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Steppenbeck, D., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Ando, T., Arici, T., Blazhev, A., Browne, F., Bruce, A. M., Carroll, R., Chung, L. X., Cortes, M. L., Dewald, M., Ding, B., Dombradi, Zs., Flavigny, F., Franchoo, S., Giacoppo, F., Gorska, M., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Jungclaus, A., Lee, J., Lettmann, M., Linh, B. D., Liu, J., Liu, Z., Lizarazo, C., Louchart, C., Lozeva, R., Matsui, K., Miyazaki, T., Moschner, K., Nagamine, S., Nakatsuka, N., Nita, C., Nishimura, S., Nobs, C. R., Olivier, L., Ota, S., Patel, Z., Podolyak, Zs., Rudigier, M., Sahin, E., Saito, T. Y., Shand, C., Soderstrom, P. -A., Stefan, I. G., Sumikama, T., Suzuki, D., Orlandi, R., Vaquero, V., Vajta, Zs., Werner, V., Wimmer, K., Wu, J., Xu, Z., Paul, N., Obertelli, A., Bertulani, C. A., Corsi, A., Doornenbal, P., Rodriguez-Sanchez, J. L., Authelet, G., Baba, H., Calvet, D., Chateau, F., Chen, S., Delbart, A., Gheller, J. -M., Giganon, A., Gillibert, A., Isobe, T., Lapoux, V., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Peron, C., Peyaud, A., Pollacco, E. C., Rousse, J. -Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Steppenbeck, D., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Ando, T., Arici, T., Blazhev, A., Browne, F., Bruce, A. M., Carroll, R., Chung, L. X., Cortes, M. L., Dewald, M., Ding, B., Dombradi, Zs., Flavigny, F., Franchoo, S., Giacoppo, F., Gorska, M., Gottardo, A., Hadynska-Klek, K., Korkulu, Z., Koyama, S., Kubota, Y., Jungclaus, A., Lee, J., Lettmann, M., Linh, B. D., Liu, J., Liu, Z., Lizarazo, C., Louchart, C., Lozeva, R., Matsui, K., Miyazaki, T., Moschner, K., Nagamine, S., Nakatsuka, N., Nita, C., Nishimura, S., Nobs, C. R., Olivier, L., Ota, S., Patel, Z., Podolyak, Zs., Rudigier, M., Sahin, E., Saito, T. Y., Shand, C., Soderstrom, P. -A., Stefan, I. G., Sumikama, T., Suzuki, D., Orlandi, R., Vaquero, V., Vajta, Zs., Werner, V., Wimmer, K., Wu, J., and Xu, Z.
Abstract: Fifty-five inclusive single nucleon-removal cross sections from medium mass neutron-rich nuclei impinging on a hydrogen target at similar to 250 MeV/nucleon are measured at the RIKEN Radioactive Isotope Beam Factory. Systematically higher cross sections are found for proton removal from nuclei with an even number of protons as compared to odd-proton number projectiles for a given neutron separation energy. Neutron removal cross sections display no even-odd splitting, contrary to nuclear cascade model predictions. Both effects are understood through simple considerations of neutron separation energies and bound state level densities originating in pairing correlations in the daughter nuclei. These conclusions are supported by comparison with semimicroscopic model predictions, highlighting the enhanced role of low-lying level densities in nucleon-removal cross sections from loosely bound nuclei.
Published: 2019

17. Shell evolution beyond Z=28 and N=50: Spectroscopy of Zn-81,Zn-82,Zn-83,Zn-84

Author: Shand, C. M., Podolyak, Zs., Gorska, M., Doornenbal, P., Obertelli, A., Nowacki, F., Otsuka, T., Sieja, K., Tostevin, J. A., Tsunoda, Y., Authelet, G., Baba, H., Calvet, D., Chateau, A., Chenh, S., Corsi, A., Delbart, A., Gheller, J. M., Giganon, A., Gillibert, A., Isobe, T., Lapoux, V., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Paul, N., Peron, C., Peyaud, A., Pollacco, E. C., Rousse, J. -Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Steppenbeck, D., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Ando, T., Arici, T., Blazhev, A., Browne, F., Bruce, A. M., Carroll, R. J., Chung, L. X., Cortes, M. L., Dewald, M., Ding, B., Dombradi, Zs., Flavigny, F., Franchoo, S., Giacoppo, F., Gottardo, A., Hadynska-Klek, K., Jungclaus, A., Korkulu, Z., Koyama, S., Kubota, Y., Lee, J., Lettmann, M., Linh, B. D., Liu, J., Liu, Z., Lizarazo, C., Louchart, C., Lozeva, R., Matsui, K., Miyazaki, T., Moschner, K., Nagamine, M., Nakatsuka, N., Nishimura, S., Nita, C. R., Nobs, C. R., Olivier, L., Ota, S., Orlandi, R., Patel, Z., Regan, P. H., Rudigier, M., Sahin, E., Saito, T., Soderstrom, P. -A., Stefan, I., Sumikama, T., Suzuki, D., Vajta, Zs., Vaquero, V., Werner, V., Wimmer, K., Wu, J., Xu, Z. Y., Shand, C. M., Podolyak, Zs., Gorska, M., Doornenbal, P., Obertelli, A., Nowacki, F., Otsuka, T., Sieja, K., Tostevin, J. A., Tsunoda, Y., Authelet, G., Baba, H., Calvet, D., Chateau, A., Chenh, S., Corsi, A., Delbart, A., Gheller, J. M., Giganon, A., Gillibert, A., Isobe, T., Lapoux, V., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Paul, N., Peron, C., Peyaud, A., Pollacco, E. C., Rousse, J. -Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Steppenbeck, D., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Ando, T., Arici, T., Blazhev, A., Browne, F., Bruce, A. M., Carroll, R. J., Chung, L. X., Cortes, M. L., Dewald, M., Ding, B., Dombradi, Zs., Flavigny, F., Franchoo, S., Giacoppo, F., Gottardo, A., Hadynska-Klek, K., Jungclaus, A., Korkulu, Z., Koyama, S., Kubota, Y., Lee, J., Lettmann, M., Linh, B. D., Liu, J., Liu, Z., Lizarazo, C., Louchart, C., Lozeva, R., Matsui, K., Miyazaki, T., Moschner, K., Nagamine, M., Nakatsuka, N., Nishimura, S., Nita, C. R., Nobs, C. R., Olivier, L., Ota, S., Orlandi, R., Patel, Z., Regan, P. H., Rudigier, M., Sahin, E., Saito, T., Soderstrom, P. -A., Stefan, I., Sumikama, T., Suzuki, D., Vajta, Zs., Vaquero, V., Werner, V., Wimmer, K., Wu, J., and Xu, Z. Y.
Abstract: We report on the measurement of new low-lying states in the neutron-rich Zn-81,Zn-82,Zn-83,Zn-84 nuclei via inbeam gamma-ray spectroscopy. These include the 4(1)(+)-> 2(1)(+) transition in Zn-82, the 2(1)(+) -> 0(g.s.)(+) and 4(1)(+)-> 2(1)(+) transitions in Zn-84, and low-lying states in Zn-81,Zn-83 were observed for the first time. The reduced E(2(1)(+)) energies and increased E(4(1)(+))/ E(2(1)(+)) ratios at N= 52, 54 compared to those in Zn-80 attest that the magicity is confined to the neutron number N= 50only. The deduced level schemes are compared to three state-of-the-art shell model calculations and a good agreement is observed with all three calculations. The newly observed 2(+) and 4(+) levels in Zn-84 suggest the onset of deformation towards heavier Zn isotopes, which has been incorporated by taking into account the upper sdgorbitals in the Ni78-II and the PFSDG-U models. (C) 2017 The Authors. Published by Elsevier B.V.
Published: 2017

18. Investigating the gamma decay of Ni-65 from particle-gamma coincidence data

Author: Crespo Campo, Lucia, Larsen, A C, Bello Garrote, F.L., Eriksen, Tomas, Giacoppo, F, Görgen, A, Guttormsen, M, Klintefjord, M., Renstrøm, T, Sahin, E, Siem, S, Gabor Tornyi, Tamas, Tveten, G M, Crespo Campo, Lucia, Larsen, A C, Bello Garrote, F.L., Eriksen, Tomas, Giacoppo, F, Görgen, A, Guttormsen, M, Klintefjord, M., Renstrøm, T, Sahin, E, Siem, S, Gabor Tornyi, Tamas, and Tveten, G M
Abstract: The gamma decay of Ni-65 has been studied from particle-gamma coincidence data on the Ni-64(d, p gamma)Ni-65 reaction. gamma-ray spectra at excitation energies below E-x approximate to 2 MeV have been studied and compared with previous measurements. Coincidences corresponding to E-x approximate to 4.4-6.1 MeV have been used to constrain the shape of the nuclear level density and gamma-strength function of Ni-65 by means of the Oslo method. The experimental gamma-strength function presents an enhancement at. energies below E-gamma approximate to 3 MeV. In addition, a resonance-like structure centered at E-gamma approximate to 4.6MeV is seen together with accumulated strength at E-gamma approximate to 2.6-3.6MeV. The obtained results contribute to the systematic study of. decay in the Ni isotopes, which is of great interest for the understanding of both single-particle and collective nuclear structure phenomena.
Published: 2017

19. Shell evolution beyond Z=28 and N=50: Spectroscopy of Zn-81,Zn-82,Zn-83,Zn-84

Author: Shand, C. M., Podolyak, Zs., Gorska, M., Doornenbal, P., Obertelli, A., Nowacki, F., Otsuka, T., Sieja, K., Tostevin, J. A., Tsunoda, Y., Authelet, G., Baba, H., Calvet, D., Chateau, A., Chenh, S., Corsi, A., Delbart, A., Gheller, J. M., Giganon, A., Gillibert, A., Isobe, T., Lapoux, V., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Paul, N., Peron, C., Peyaud, A., Pollacco, E. C., Rousse, J. -Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Steppenbeck, D., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Ando, T., Arici, T., Blazhev, A., Browne, F., Bruce, A. M., Carroll, R. J., Chung, L. X., Cortes, M. L., Dewald, M., Ding, B., Dombradi, Zs., Flavigny, F., Franchoo, S., Giacoppo, F., Gottardo, A., Hadynska-Klek, K., Jungclaus, A., Korkulu, Z., Koyama, S., Kubota, Y., Lee, J., Lettmann, M., Linh, B. D., Liu, J., Liu, Z., Lizarazo, C., Louchart, C., Lozeva, R., Matsui, K., Miyazaki, T., Moschner, K., Nagamine, M., Nakatsuka, N., Nishimura, S., Nita, C. R., Nobs, C. R., Olivier, L., Ota, S., Orlandi, R., Patel, Z., Regan, P. H., Rudigier, M., Sahin, E., Saito, T., Soderstrom, P. -A., Stefan, I., Sumikama, T., Suzuki, D., Vajta, Zs., Vaquero, V., Werner, V., Wimmer, K., Wu, J., Xu, Z. Y., Shand, C. M., Podolyak, Zs., Gorska, M., Doornenbal, P., Obertelli, A., Nowacki, F., Otsuka, T., Sieja, K., Tostevin, J. A., Tsunoda, Y., Authelet, G., Baba, H., Calvet, D., Chateau, A., Chenh, S., Corsi, A., Delbart, A., Gheller, J. M., Giganon, A., Gillibert, A., Isobe, T., Lapoux, V., Matsushita, M., Momiyama, S., Motobayashi, T., Niikura, M., Otsu, H., Paul, N., Peron, C., Peyaud, A., Pollacco, E. C., Rousse, J. -Y., Sakurai, H., Santamaria, C., Sasano, M., Shiga, Y., Steppenbeck, D., Takeuchi, S., Taniuchi, R., Uesaka, T., Wang, H., Yoneda, K., Ando, T., Arici, T., Blazhev, A., Browne, F., Bruce, A. M., Carroll, R. J., Chung, L. X., Cortes, M. L., Dewald, M., Ding, B., Dombradi, Zs., Flavigny, F., Franchoo, S., Giacoppo, F., Gottardo, A., Hadynska-Klek, K., Jungclaus, A., Korkulu, Z., Koyama, S., Kubota, Y., Lee, J., Lettmann, M., Linh, B. D., Liu, J., Liu, Z., Lizarazo, C., Louchart, C., Lozeva, R., Matsui, K., Miyazaki, T., Moschner, K., Nagamine, M., Nakatsuka, N., Nishimura, S., Nita, C. R., Nobs, C. R., Olivier, L., Ota, S., Orlandi, R., Patel, Z., Regan, P. H., Rudigier, M., Sahin, E., Saito, T., Soderstrom, P. -A., Stefan, I., Sumikama, T., Suzuki, D., Vajta, Zs., Vaquero, V., Werner, V., Wimmer, K., Wu, J., and Xu, Z. Y.
Abstract: We report on the measurement of new low-lying states in the neutron-rich Zn-81,Zn-82,Zn-83,Zn-84 nuclei via inbeam gamma-ray spectroscopy. These include the 4(1)(+)-> 2(1)(+) transition in Zn-82, the 2(1)(+) -> 0(g.s.)(+) and 4(1)(+)-> 2(1)(+) transitions in Zn-84, and low-lying states in Zn-81,Zn-83 were observed for the first time. The reduced E(2(1)(+)) energies and increased E(4(1)(+))/ E(2(1)(+)) ratios at N= 52, 54 compared to those in Zn-80 attest that the magicity is confined to the neutron number N= 50only. The deduced level schemes are compared to three state-of-the-art shell model calculations and a good agreement is observed with all three calculations. The newly observed 2(+) and 4(+) levels in Zn-84 suggest the onset of deformation towards heavier Zn isotopes, which has been incorporated by taking into account the upper sdgorbitals in the Ni78-II and the PFSDG-U models. (C) 2017 The Authors. Published by Elsevier B.V.
Published: 2017

20. Recent upgrades of the SHIPTRAP setup : On the finish line towards direct mass spectroscopy of superheavy elements

Author: Giacoppo, F., Blaum, K., Block, M, Poudyal Chhetri, Meen, Düllmann, Ch. E., Droese, C., Eliseev, S., Filianin, P., Götz, Sebastian, Gusev, Y., Herfurth, F., Hessberger, F. P., Kaleja, O., Khuyagbaatar, J., Laatiaoui, M., Lautenschläger, F., Lorenz, C., Marx, G., Minaya Ramirez, E., Mistry, A. K., Novikov, Yu. N., Plass, W. R., Raeder, S., Rodríguez, D., Rudolph, D., Sarmiento, L. G., Scheidenberger, C, Schweikhard, L., Thirolf, P., Yakushev, A., Giacoppo, F., Blaum, K., Block, M, Poudyal Chhetri, Meen, Düllmann, Ch. E., Droese, C., Eliseev, S., Filianin, P., Götz, Sebastian, Gusev, Y., Herfurth, F., Hessberger, F. P., Kaleja, O., Khuyagbaatar, J., Laatiaoui, M., Lautenschläger, F., Lorenz, C., Marx, G., Minaya Ramirez, E., Mistry, A. K., Novikov, Yu. N., Plass, W. R., Raeder, S., Rodríguez, D., Rudolph, D., Sarmiento, L. G., Scheidenberger, C, Schweikhard, L., Thirolf, P., and Yakushev, A.
Abstract: With the Penning-trap mass spectrometer SHIPTRAP at GSI, Darmstadt, it is possible to investigate exotic nuclei in the region of the heaviest elements. Few years ago, challenging experiments led to the direct measurements of the masses of neutron-deficient isotopes with Z = 102; 103 around N = 152. Thanks to recent advances in cooling and ion-manipulation techniques, a major technical upgrade of the setup has been recently accomplished to boost its efficiency. At present, the gap to reach more rare and shorter-lived species at the limits of the nuclear landscape has been narrowed.
Published: 2017

21. Experimentally constrained (p,γ) y 89 and (n,γ) y 89 reaction rates relevant to p -process nucleosynthesis

Author: Larsen, André, Giacoppo, F, Görgen, Andreas, Hagen, T.W., Klintefjord, M., Renstrøm, Therese, Rose, S.J., Sahin, Ercan, Siem, Sunniva, Tornyi, T.G., Tveten, G.M., Guttormsen, Magne, Voinov, A., Wiedeking, M., Schwengner, Ronald, Bleuel, Darren D.L., Goriely, Stéphane, Harissopulos, Sotirios, Bello Garrote, F.L., Byun, Y., Eriksen, T.K., Larsen, André, Giacoppo, F, Görgen, Andreas, Hagen, T.W., Klintefjord, M., Renstrøm, Therese, Rose, S.J., Sahin, Ercan, Siem, Sunniva, Tornyi, T.G., Tveten, G.M., Guttormsen, Magne, Voinov, A., Wiedeking, M., Schwengner, Ronald, Bleuel, Darren D.L., Goriely, Stéphane, Harissopulos, Sotirios, Bello Garrote, F.L., Byun, Y., and Eriksen, T.K.
Abstract: The nuclear level density and the γ-ray strength function have been extracted for Y89 by using the Oslo method on Y89(p,p′γ)Y89 coincidence data. The γ-ray strength function displays a low-energy enhancement consistent with previous observations in this mass region (Mo93-98). Shell-model calculations support the conclusion that the observed enhancement is due to strong, low-energy M1 transitions at high excitation energies. The data were further used as input for calculations of the Sr88(p,γ)Y89 and Y88(n,γ)Y89 cross sections with the talys reaction code. Comparison with cross-section data, where available, as well as with values from the BRUSLIB library, shows a satisfying agreement., SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2016

22. Experimentally constrained (p,γ)89Y and (n,γ)89Y reaction rates relevant to p-process nucleosynthesis

Author: Larsen, Ann-Cecilie, Guttormsen, Magne, Schwengner, Ronald, Bleuel, Darren D.L., Goriely, Stéphane, Harissopulus, Sotiris, Bello Garrote, F.L., Byun, Y., Eriksen, T.K., Giacoppo, F, Görgen, Andreas, Hagen, T.W., Klintefjord, M., Renstrom, T., Rose, S.J., Sahin, E, Siem, Sunniva, Tornyi, T., Tveten, G.M., Voinov, A., Wiedeking, M., Larsen, Ann-Cecilie, Guttormsen, Magne, Schwengner, Ronald, Bleuel, Darren D.L., Goriely, Stéphane, Harissopulus, Sotiris, Bello Garrote, F.L., Byun, Y., Eriksen, T.K., Giacoppo, F, Görgen, Andreas, Hagen, T.W., Klintefjord, M., Renstrom, T., Rose, S.J., Sahin, E, Siem, Sunniva, Tornyi, T., Tveten, G.M., Voinov, A., and Wiedeking, M.
Abstract: The nuclear level density and the γ -ray strength function have been extracted for 89 Y by using the Oslo method on 89Y(p,p′γ)89Y coincidence data. The γ-ray strength function displays a low-energy enhancement consistent with previous observations in this mass region (93–98Mo). Shell-model calculations support the conclusion that the observed enhancement is due to strong, low-energy M1 transitions at high excitation energies. The data were further used as input for calculations of the 88 Sr(p,γ )89 Y and 88 Y(n,γ )89 Y cross sections with the TALYS reaction code. Comparison with cross-section data, where available, as well as with values from the BRUSLIB library, shows a satisfying agreement., info:eu-repo/semantics/published
Published: 2016

23. Structure of low-lying states in Sm-140 studied by Coulomb excitation

Author: Klintefjord, M., Hadynska-Klek, K., Gorgen, A., Bauer, C., Garrote, F. L. Bello, Bonig, S., Bounthong, B., Damyanova, A., Delaroche, J. -P., Fedosseev, V., Fink, D. A., Giacoppo, F., Girod, M., Hoff, P., Imai, N., Korten, W., Larsen, A. -C., Libert, J., Lutter, R., Marsh, B. A., Molkanov, P. L., Naidja, H., Napiorkowski, P., Nowacki, F., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Rothe, S., Seliverstov, M. D., Siebeck, B., Siem, S., Srebrny, J., Stora, T., Thole, P., Tornyi, T. G., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Voulot, D., Warr, N., Wenander, F., De Witte, H., Zielinska, M., Klintefjord, M., Hadynska-Klek, K., Gorgen, A., Bauer, C., Garrote, F. L. Bello, Bonig, S., Bounthong, B., Damyanova, A., Delaroche, J. -P., Fedosseev, V., Fink, D. A., Giacoppo, F., Girod, M., Hoff, P., Imai, N., Korten, W., Larsen, A. -C., Libert, J., Lutter, R., Marsh, B. A., Molkanov, P. L., Naidja, H., Napiorkowski, P., Nowacki, F., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Rothe, S., Seliverstov, M. D., Siebeck, B., Siem, S., Srebrny, J., Stora, T., Thole, P., Tornyi, T. G., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Voulot, D., Warr, N., Wenander, F., De Witte, H., and Zielinska, M.
Abstract: The electromagnetic structure of Sm-140 was studied in a low-energy Coulomb excitation experiment with a radioactive ion beam from the REX-ISOLDE facility at CERN. The 2(+) and 4(+) states of the ground-state band and a second 2(+) state were populated by multistep excitation. The analysis of the differential Coulomb excitation cross sections yielded reduced transition probabilities between all observed states and the spectroscopic quadrupole moment for the 2(1)(+) state. The experimental results are compared to large-scale shell model calculations and beyond-mean-field calculations based on the Gogny D1S interaction with a five-dimensional collective Hamiltonian formalism. Simpler geometric and algebraic models are also employed to interpret the experimental data. The results indicate that Sm-140 shows considerable. softness, but in contrast to earlier speculation no signs of shape coexistence at low excitation energy. This work sheds more light on the onset of deformation and collectivity in this mass region.
Published: 2016

24. Collectivity of neutron-rich Cr and Fe toward N=50

Author: Werner, Volker, Santamaria, C., Louchart, C., Obertelli, Alexandre, Doornenbal, Pieter, Nowacki, Frédéric, Authelet, Gilles, Baba, Hidetada, Calvet, Denis, Château, F., Corsi, Anna, Delbart, Alain, Gheller, Jean-Marc, Gillibert, Alain, Isobe, Tadaaki, Lapoux, Valérie, Matsushita, M., Momiyama, S., Motobayashi, Tohru, Niikura, Megumi, Otsu, Hideaki, Péron, Cedric, Peyaud, Alan, Pollacco, Emanuel C., Roussé, Jean-Yves Andre, Sakurai, Hiroyoshi, Sasano, Masaki, Shiga, Y., Takeuchi, Satoshi, Taniuchi, Ryo, Uesaka, Tomohiro, Wang, Haohao, Yoneda, Ken-ichiro, Browne, Frank, Chung, L.X., Dombrádi, Zsolt, Franchoo, Serge, Giacoppo, F., Gottardo, A., Hadyńska-Kęk, Katarzyna, Korkulu, Zeren, Koyama, Shunpei, Kubota, Yuichi, Lee, J., Lettmann, Marc, Lozeva, R., Matsui, K., Miyazaki, T., Nishimura, Shunji, Olivier, L., Ota, S., Patel, Z., Pietralla, Norbert, Sahin, E., Shand, C., Söderström, Pär-Anders, Stefan, I., Steppenbeck, David, Sumikama, Toshiyuki, Suzuki, Daisuke, Vajta, Zs., Wu, J., Xu, Z., Werner, Volker, Santamaria, C., Louchart, C., Obertelli, Alexandre, Doornenbal, Pieter, Nowacki, Frédéric, Authelet, Gilles, Baba, Hidetada, Calvet, Denis, Château, F., Corsi, Anna, Delbart, Alain, Gheller, Jean-Marc, Gillibert, Alain, Isobe, Tadaaki, Lapoux, Valérie, Matsushita, M., Momiyama, S., Motobayashi, Tohru, Niikura, Megumi, Otsu, Hideaki, Péron, Cedric, Peyaud, Alan, Pollacco, Emanuel C., Roussé, Jean-Yves Andre, Sakurai, Hiroyoshi, Sasano, Masaki, Shiga, Y., Takeuchi, Satoshi, Taniuchi, Ryo, Uesaka, Tomohiro, Wang, Haohao, Yoneda, Ken-ichiro, Browne, Frank, Chung, L.X., Dombrádi, Zsolt, Franchoo, Serge, Giacoppo, F., Gottardo, A., Hadyńska-Kęk, Katarzyna, Korkulu, Zeren, Koyama, Shunpei, Kubota, Yuichi, Lee, J., Lettmann, Marc, Lozeva, R., Matsui, K., Miyazaki, T., Nishimura, Shunji, Olivier, L., Ota, S., Patel, Z., Pietralla, Norbert, Sahin, E., Shand, C., Söderström, Pär-Anders, Stefan, I., Steppenbeck, David, Sumikama, Toshiyuki, Suzuki, Daisuke, Vajta, Zs., Wu, J., and Xu, Z.
Abstract: Within the SEASTAR project at RIKEN-RIBF, 66Cr and 70,72Fe have been produced via protonknockout reactions, and their first excited 2+ and 4+ states have been discovered. The combination of the liquid-hydrogen target and TPC system MINOS has been used in combination with the DALI2 detector array for the first time. A 345 MeV/u 238U beam with a mean intensity of about 12 pnA impinged on a Be target. Fission fragments were separated and identified using the BigRIPS spectrograph, and reaction products were analyzed using the ZeroDegree spectrograph. A plateau of excitation energies, with a small change in the systematic trends past N = 44, reveals an extension of the N = 40 region of collectivity toward N = 50. Hence, the isotopes of interest are located within the N = 40 island of inversion. An interpretation of the observed trends is offered through large scale shell model calculations.
Published: 2016

25. Completing the nuclear reaction puzzle of the nucleosynthesis of 92Mo

Author: Tveten, G. M., Spyrou, A., Schwengner, R., Naqvi, F., Larsen, A. C., Eriksen, T. K., Bellogarrote, F. L., Bernstein, L. A., Bleuel, D. L., Crespo-Campo, L., Guttormsen, M., Giacoppo, F., Görgen, A., Hagen, T. W., Hadynska-Klek, K., Klintefjord, M., Meyer, B. S., Nyhus, H. T., Renstrom, T., Rose, S. J., Sahin, E., Siem, S., Tornyi, T. G., Tveten, G. M., Spyrou, A., Schwengner, R., Naqvi, F., Larsen, A. C., Eriksen, T. K., Bellogarrote, F. L., Bernstein, L. A., Bleuel, D. L., Crespo-Campo, L., Guttormsen, M., Giacoppo, F., Görgen, A., Hagen, T. W., Hadynska-Klek, K., Klintefjord, M., Meyer, B. S., Nyhus, H. T., Renstrom, T., Rose, S. J., Sahin, E., Siem, S., and Tornyi, T. G.
Abstract: One of the greatest questions for modern physics to address is how elements heavier than iron are created in extreme, astrophysical environments. A particularly challenging part of that question is the description of the so-called p-nuclei, which are believed to be mainly produced in some types of supernovae. In this work, we present for the first time measurements on the nuclear level density and average strength function of 92 Mo. State-of-the-art p-process calculations systematically underestimate the observed solar abundance. Our data provide stringent constraints on the 91 Nb(p,gamma92 Mo reaction rate, which is the last unmeasured reaction in the nucleosynthesis puzzle of 92 Mo. Based on our results, we conclude that the 92 Mo abundance anomaly is not due to the nuclear physics input.
Published: 2016

26. Structure of low-lying states in Sm-140 studied by Coulomb excitation

Author: Klintefjord, M., Hadynska-Klek, K., Gorgen, A., Bauer, C., Garrote, F. L. Bello, Bonig, S., Bounthong, B., Damyanova, A., Delaroche, J. -P., Fedosseev, V., Fink, D. A., Giacoppo, F., Girod, M., Hoff, P., Imai, N., Korten, W., Larsen, A. -C., Libert, J., Lutter, R., Marsh, B. A., Molkanov, P. L., Naidja, H., Napiorkowski, P., Nowacki, F., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Rothe, S., Seliverstov, M. D., Siebeck, B., Siem, S., Srebrny, J., Stora, T., Thole, P., Tornyi, T. G., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Voulot, D., Warr, N., Wenander, F., De Witte, H., Zielinska, M., Klintefjord, M., Hadynska-Klek, K., Gorgen, A., Bauer, C., Garrote, F. L. Bello, Bonig, S., Bounthong, B., Damyanova, A., Delaroche, J. -P., Fedosseev, V., Fink, D. A., Giacoppo, F., Girod, M., Hoff, P., Imai, N., Korten, W., Larsen, A. -C., Libert, J., Lutter, R., Marsh, B. A., Molkanov, P. L., Naidja, H., Napiorkowski, P., Nowacki, F., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Rothe, S., Seliverstov, M. D., Siebeck, B., Siem, S., Srebrny, J., Stora, T., Thole, P., Tornyi, T. G., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Voulot, D., Warr, N., Wenander, F., De Witte, H., and Zielinska, M.
Abstract: The electromagnetic structure of Sm-140 was studied in a low-energy Coulomb excitation experiment with a radioactive ion beam from the REX-ISOLDE facility at CERN. The 2(+) and 4(+) states of the ground-state band and a second 2(+) state were populated by multistep excitation. The analysis of the differential Coulomb excitation cross sections yielded reduced transition probabilities between all observed states and the spectroscopic quadrupole moment for the 2(1)(+) state. The experimental results are compared to large-scale shell model calculations and beyond-mean-field calculations based on the Gogny D1S interaction with a five-dimensional collective Hamiltonian formalism. Simpler geometric and algebraic models are also employed to interpret the experimental data. The results indicate that Sm-140 shows considerable. softness, but in contrast to earlier speculation no signs of shape coexistence at low excitation energy. This work sheds more light on the onset of deformation and collectivity in this mass region.
Published: 2016

27. Statistical nuclear properties and synthesis of 138La

Author: Kheswa, B.V., Hagen, T.W., Koehler, P., Klintefjord, M., Nyhus, Hilde Therese, Papka, Paul, Renstrøm, Therese, Rose, S.J., Sahin, Esin, Siem, Sunniva, Tornyi, T.G., Wiedeking, M., Giacoppo, F, Goriely, Stéphane, Guttormsen, Magne, Larsen, André, Bello Garrote, F.L., Eriksen, T.K., Görgen, Andreas, Kheswa, B.V., Hagen, T.W., Koehler, P., Klintefjord, M., Nyhus, Hilde Therese, Papka, Paul, Renstrøm, Therese, Rose, S.J., Sahin, Esin, Siem, Sunniva, Tornyi, T.G., Wiedeking, M., Giacoppo, F, Goriely, Stéphane, Guttormsen, Magne, Larsen, André, Bello Garrote, F.L., Eriksen, T.K., and Görgen, Andreas
Abstract: The synthesis of the neutron deficient 138La nucleus has been a puzzle for a long time. It has not been clear whether it is produced through photodisintegration processes or neutrino induced reactions due to unavailability of experimental data for nuclear level densities and γ strength functions of 138,139La nuclei. In the present work these nuclear properties have been measured and are used to investigate the synthesis of 138La. The results support the neutrino interactions as a dominant production process for 138La., SCOPUS: cp.p, info:eu-repo/semantics/published
Published: 2015

28. Upbend and M1 scissors mode in neutron-rich nuclei - Consequences for r-process (n,γ) reaction rates

Author: Larsen, André, Giacoppo, F, Guttormsen, Magne, Görgen, Andreas, Harissopulos, Sotirios, Leoni, Silvia, Liddick, Sean S.N., Naqvi, F., Nyhus, Hilde Therese, Rose, S.J., Renstrøm, Therese, Goriely, Stéphane, Schwengner, Ronald, Siem, Sunniva, Spyrou, Artemis, Tveten, G.M., Voinov, A., Wiedeking, M., Bernstein, L.A., Bleuel, Darren D.L., Bracco, Angela, Brown, Alex, Camera, Franco, Eriksen, T.K., Frauendorf, Stefan, Larsen, André, Giacoppo, F, Guttormsen, Magne, Görgen, Andreas, Harissopulos, Sotirios, Leoni, Silvia, Liddick, Sean S.N., Naqvi, F., Nyhus, Hilde Therese, Rose, S.J., Renstrøm, Therese, Goriely, Stéphane, Schwengner, Ronald, Siem, Sunniva, Spyrou, Artemis, Tveten, G.M., Voinov, A., Wiedeking, M., Bernstein, L.A., Bleuel, Darren D.L., Bracco, Angela, Brown, Alex, Camera, Franco, Eriksen, T.K., and Frauendorf, Stefan
Abstract: An enhanced probability for low-energy γ-emission (upbend, Eγ <3 MeV) at high excitation energies has been observed for several light and mediummass nuclei close to the valley of stability. Also the M1 scissors mode seen in deformed nuclei increases the γ-decay probability for low-energy γ-rays (Eγ ≈ 2-3 MeV). These phenomena, if present in neutron-rich nuclei, have the potential to increase radiative neutron-capture rates relevant for the r-process. The experimental and theoretical status of the upbend is discussed, and preliminary calculations of (n,γ) reaction rates for neutronrich, mid-mass nuclei including the scissors mode are shown., SCOPUS: cp.j, info:eu-repo/semantics/published
Published: 2015

29. Galactic production of 138La: Impact of 138,139La statistical properties

Author: Kheswa, B.V., Wiedeking, M., Giacoppo, F, Goriely, Stéphane, Guttormsen, Magne, Larsen, Ann-Cecilie, Bello Garrote, F.L., Eriksen, T.K., Görgen, Andreas, Hagen, T.W., Koehler, P.E., Klintefjord, M., Nyhus, Hilde Therese, Papka, P., Renstrøm, Therese, Rose, S. J., Sahin, E, Siem, Sunniva, Tornyi, T., Kheswa, B.V., Wiedeking, M., Giacoppo, F, Goriely, Stéphane, Guttormsen, Magne, Larsen, Ann-Cecilie, Bello Garrote, F.L., Eriksen, T.K., Görgen, Andreas, Hagen, T.W., Koehler, P.E., Klintefjord, M., Nyhus, Hilde Therese, Papka, P., Renstrøm, Therese, Rose, S. J., Sahin, E, Siem, Sunniva, and Tornyi, T.
Abstract: The γ-ray strength functions and nuclear level densities of 138La and 139La have been measured below the neutron separation energies. These new data were used to calculate astrophysical Maxwellian-averaged (n, γ) cross-sections to investigate the production and destruction of the p-nucleus 138La in the photodisintegration process. The results confirm the underproduction of 138La in the p-process with respect to the observed abundances and strongly support the ν-process through νe capture on 138Ba as the main contributor to the synthesis of 138La in Type II supernovae., SCOPUS: ar.j, info:eu-repo/semantics/published
Published: 2015

30. Upbend and M1 scissors mode in neutron-rich nuclei- consequences for r-process (n,γ) reaction rates

Author: Larsen, Ann-Cecilie, Goriely, Stéphane, Bernstein, L.A., Bleuel, D.L., Bracco, Angela, Brown, Alex, Camera, F., Eriksen, T.K., Frauendorf, S., Giacoppo, F, Guttormsen, Magne, Görgen, Andreas, Harissopulos, Sotirios, Leoni, Silvia, Liddick, S.N., Naqvi, F., Nyhus, Hilde Therese, Rose, S.J., Renstrom, T., Schwengner, Ronald, Siem, Sunniva, Spyrou, Artemis, Tveten, G.M., Voinov, A., Wiedeking, M., Larsen, Ann-Cecilie, Goriely, Stéphane, Bernstein, L.A., Bleuel, D.L., Bracco, Angela, Brown, Alex, Camera, F., Eriksen, T.K., Frauendorf, S., Giacoppo, F, Guttormsen, Magne, Görgen, Andreas, Harissopulos, Sotirios, Leoni, Silvia, Liddick, S.N., Naqvi, F., Nyhus, Hilde Therese, Rose, S.J., Renstrom, T., Schwengner, Ronald, Siem, Sunniva, Spyrou, Artemis, Tveten, G.M., Voinov, A., and Wiedeking, M.
Abstract: info:eu-repo/semantics/published
Published: 2015

31. SPECTROSCOPY OF LOW-LYING STATES IN Sm-140

Author: Klintefjord, M., Hadynska-Klek, K., Samorajczyk, J., Gorgen, A., Droste, Ch, Srebrny, J., Abraham, T., Bauer, C., Garrote, F. L. Bello, Boenig, S., Damyanova, A., Giacoppo, F., Grodner, E., Hoff, P., Kisielinski, M., Komorowska, M., Korten, W., Kowalczyk, M., Kownacki, J., Larsen, A. C., Lutter, R., Marchlewski, T., Napiorkowski, P., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Siebeck, B., Siem, S., Stolarz, A., Szenborn, R., Thoele, P., Tornyi, T., Tucholski, A., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Warr, N., De Witte, H., Zielinska, M., Klintefjord, M., Hadynska-Klek, K., Samorajczyk, J., Gorgen, A., Droste, Ch, Srebrny, J., Abraham, T., Bauer, C., Garrote, F. L. Bello, Boenig, S., Damyanova, A., Giacoppo, F., Grodner, E., Hoff, P., Kisielinski, M., Komorowska, M., Korten, W., Kowalczyk, M., Kownacki, J., Larsen, A. C., Lutter, R., Marchlewski, T., Napiorkowski, P., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Siebeck, B., Siem, S., Stolarz, A., Szenborn, R., Thoele, P., Tornyi, T., Tucholski, A., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Warr, N., De Witte, H., and Zielinska, M.
Abstract: Electromagnetic transition strengths and spectroscopic quadrupole moments for Sm-140 were measured by means of multi-step Coulomb excitation with radioactive beam at the ISOLDE facility at CERN. A complementary experiment was performed at the Heavy Ion Laboratory in Warsaw to assign spins for non-yrast states using the angular correlation technique. Based on the new experimental data previous spin assignments need to be revised.
Published: 2015

32. SPECTROSCOPY OF LOW-LYING STATES IN Sm-140

Author: Klintefjord, M., Hadynska-Klek, K., Samorajczyk, J., Gorgen, A., Droste, Ch, Srebrny, J., Abraham, T., Bauer, C., Garrote, F. L. Bello, Boenig, S., Damyanova, A., Giacoppo, F., Grodner, E., Hoff, P., Kisielinski, M., Komorowska, M., Korten, W., Kowalczyk, M., Kownacki, J., Larsen, A. C., Lutter, R., Marchlewski, T., Napiorkowski, P., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Siebeck, B., Siem, S., Stolarz, A., Szenborn, R., Thoele, P., Tornyi, T., Tucholski, A., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Warr, N., De Witte, H., Zielinska, M., Klintefjord, M., Hadynska-Klek, K., Samorajczyk, J., Gorgen, A., Droste, Ch, Srebrny, J., Abraham, T., Bauer, C., Garrote, F. L. Bello, Boenig, S., Damyanova, A., Giacoppo, F., Grodner, E., Hoff, P., Kisielinski, M., Komorowska, M., Korten, W., Kowalczyk, M., Kownacki, J., Larsen, A. C., Lutter, R., Marchlewski, T., Napiorkowski, P., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Siebeck, B., Siem, S., Stolarz, A., Szenborn, R., Thoele, P., Tornyi, T., Tucholski, A., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Warr, N., De Witte, H., and Zielinska, M.
Abstract: Electromagnetic transition strengths and spectroscopic quadrupole moments for Sm-140 were measured by means of multi-step Coulomb excitation with radioactive beam at the ISOLDE facility at CERN. A complementary experiment was performed at the Heavy Ion Laboratory in Warsaw to assign spins for non-yrast states using the angular correlation technique. Based on the new experimental data previous spin assignments need to be revised.
Published: 2015

33. Statistical nuclear properties and synthesis of 138La

Author: Kheswa, B.V., Wiedeking, M., Giacoppo, F, Goriely, Stéphane, Guttormsen, Magne, Larsen, Ann-Cecilie, Bello Garrote, F.L., Eriksen, T.K., Görgen, Andreas, Hagen, T.W., Koehler, P.E., Klintefjord, M., Nyhus, Hilde Therese, Papka, P., Renstrøm, Therese, Rose, S.J., Sahin, E, Siem, Sunniva, Tornyi, T., Kheswa, B.V., Wiedeking, M., Giacoppo, F, Goriely, Stéphane, Guttormsen, Magne, Larsen, Ann-Cecilie, Bello Garrote, F.L., Eriksen, T.K., Görgen, Andreas, Hagen, T.W., Koehler, P.E., Klintefjord, M., Nyhus, Hilde Therese, Papka, P., Renstrøm, Therese, Rose, S.J., Sahin, E, Siem, Sunniva, and Tornyi, T.
Abstract: info:eu-repo/semantics/published
Published: 2015

34. SPECTROSCOPY OF LOW-LYING STATES IN Sm-140

Author: Klintefjord, M., Hadynska-Klek, K., Samorajczyk, J., Gorgen, A., Droste, Ch, Srebrny, J., Abraham, T., Bauer, C., Garrote, F. L. Bello, Boenig, S., Damyanova, A., Giacoppo, F., Grodner, E., Hoff, P., Kisielinski, M., Komorowska, M., Korten, W., Kowalczyk, M., Kownacki, J., Larsen, A. C., Lutter, R., Marchlewski, T., Napiorkowski, P., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Siebeck, B., Siem, S., Stolarz, A., Szenborn, R., Thoele, P., Tornyi, T., Tucholski, A., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Warr, N., De Witte, H., Zielinska, M., Klintefjord, M., Hadynska-Klek, K., Samorajczyk, J., Gorgen, A., Droste, Ch, Srebrny, J., Abraham, T., Bauer, C., Garrote, F. L. Bello, Boenig, S., Damyanova, A., Giacoppo, F., Grodner, E., Hoff, P., Kisielinski, M., Komorowska, M., Korten, W., Kowalczyk, M., Kownacki, J., Larsen, A. C., Lutter, R., Marchlewski, T., Napiorkowski, P., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Siebeck, B., Siem, S., Stolarz, A., Szenborn, R., Thoele, P., Tornyi, T., Tucholski, A., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Warr, N., De Witte, H., and Zielinska, M.
Abstract: Electromagnetic transition strengths and spectroscopic quadrupole moments for Sm-140 were measured by means of multi-step Coulomb excitation with radioactive beam at the ISOLDE facility at CERN. A complementary experiment was performed at the Heavy Ion Laboratory in Warsaw to assign spins for non-yrast states using the angular correlation technique. Based on the new experimental data previous spin assignments need to be revised.
Published: 2015

35. SPECTROSCOPY OF LOW-LYING STATES IN Sm-140

Author: Klintefjord, M., Hadynska-Klek, K., Samorajczyk, J., Gorgen, A., Droste, Ch, Srebrny, J., Abraham, T., Bauer, C., Garrote, F. L. Bello, Boenig, S., Damyanova, A., Giacoppo, F., Grodner, E., Hoff, P., Kisielinski, M., Komorowska, M., Korten, W., Kowalczyk, M., Kownacki, J., Larsen, A. C., Lutter, R., Marchlewski, T., Napiorkowski, P., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Siebeck, B., Siem, S., Stolarz, A., Szenborn, R., Thoele, P., Tornyi, T., Tucholski, A., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Warr, N., De Witte, H., Zielinska, M., Klintefjord, M., Hadynska-Klek, K., Samorajczyk, J., Gorgen, A., Droste, Ch, Srebrny, J., Abraham, T., Bauer, C., Garrote, F. L. Bello, Boenig, S., Damyanova, A., Giacoppo, F., Grodner, E., Hoff, P., Kisielinski, M., Komorowska, M., Korten, W., Kowalczyk, M., Kownacki, J., Larsen, A. C., Lutter, R., Marchlewski, T., Napiorkowski, P., Pakarinen, J., Rapisarda, E., Reiter, P., Renstrom, T., Siebeck, B., Siem, S., Stolarz, A., Szenborn, R., Thoele, P., Tornyi, T., Tucholski, A., Tveten, G. M., Van Duppen, P., Vermeulen, M. J., Warr, N., De Witte, H., and Zielinska, M.
Abstract: Electromagnetic transition strengths and spectroscopic quadrupole moments for Sm-140 were measured by means of multi-step Coulomb excitation with radioactive beam at the ISOLDE facility at CERN. A complementary experiment was performed at the Heavy Ion Laboratory in Warsaw to assign spins for non-yrast states using the angular correlation technique. Based on the new experimental data previous spin assignments need to be revised.
Published: 2015

36. Statistical nuclear properties and synthesis of 138La

Author: Kheswa, B.V., Wiedeking, M., Giacoppo, F, Goriely, Stéphane, Guttormsen, Magne, Larsen, Ann-Cecilie, Bello Garrote, F.L., Eriksen, T.K., Görgen, Andreas, Hagen, T.W., Koehler, P.E., Klintefjord, M., Nyhus, Hilde Therese, Papka, P., Renstrøm, Therese, Rose, S.J., Sahin, E, Siem, Sunniva, Tornyi, T., Kheswa, B.V., Wiedeking, M., Giacoppo, F, Goriely, Stéphane, Guttormsen, Magne, Larsen, Ann-Cecilie, Bello Garrote, F.L., Eriksen, T.K., Görgen, Andreas, Hagen, T.W., Koehler, P.E., Klintefjord, M., Nyhus, Hilde Therese, Papka, P., Renstrøm, Therese, Rose, S.J., Sahin, E, Siem, Sunniva, and Tornyi, T.
Abstract: info:eu-repo/semantics/published
Published: 2015

37. Low-energy enhancement of nuclear γ strength and its impact on astrophysical reaction rates

Author: Larsen, André, Eriksen, T.K., Giacoppo, F, Guttormsen, Magne, Görgen, Andreas, Hagen, T.W., Koehler, Paul P.E., Nyhus, Hilde Therese, Renstrøm, Therese, Rose, Steven S.J., Ruud, I.E., Siem, Sunniva, Tornyi, T., Tveten, G.M., Blasi, Nives, Bracco, Angela, Burger, Arnold, Camera, Franco, Leoni, Silvia, Million, Bénédicte, Goriely, Stéphane, Harissopulos, Sotirios, Schiller, Andreas, Voinov, A., Wiedeking, M., Larsen, André, Eriksen, T.K., Giacoppo, F, Guttormsen, Magne, Görgen, Andreas, Hagen, T.W., Koehler, Paul P.E., Nyhus, Hilde Therese, Renstrøm, Therese, Rose, Steven S.J., Ruud, I.E., Siem, Sunniva, Tornyi, T., Tveten, G.M., Blasi, Nives, Bracco, Angela, Burger, Arnold, Camera, Franco, Leoni, Silvia, Million, Bénédicte, Goriely, Stéphane, Harissopulos, Sotirios, Schiller, Andreas, Voinov, A., and Wiedeking, M.
Abstract: An unexpected enhancement in the low-energy part of the γ-strength function for light and medium-mass nuclei has been discovered at the Oslo Cyclotron Laboratory. This enhancement could lead to an increase in the neutron-capture rates up to two orders of magnitude for very exotic, neutron-rich nuclei. However, it is still an open question whether this structure persists when approaching the neutron drip line. © Owned by the authors, published by EDP Sciences, 2014., SCOPUS: cp.p, info:eu-repo/semantics/published
Published: 2014

38. Low-energy enhancement of nuclear gamma strength and its impact on astrophysical reaction rates

Author: Larsen, Ann-Cecilie, Blasi, N., Bracco, Angela, Burger, A., Camera, F., Eriksen, T.K., Giacoppo, F, Goriely, Stéphane, Guttormsen, Magne, Görgen, Andreas, Hagen, T.W., Harissopulos, Sotirios, Koehler, P.E., Leoni, S., Million, B., Nyhus, Hilde Therese, Renstrøm, Therese, Rose, S. J., Ruud, I.E., Schiller, Andreas, Siem, Sunniva, Tornyi, T., Tveten, G.M., Voinov, A., Wiedeking, M., Larsen, Ann-Cecilie, Blasi, N., Bracco, Angela, Burger, A., Camera, F., Eriksen, T.K., Giacoppo, F, Goriely, Stéphane, Guttormsen, Magne, Görgen, Andreas, Hagen, T.W., Harissopulos, Sotirios, Koehler, P.E., Leoni, S., Million, B., Nyhus, Hilde Therese, Renstrøm, Therese, Rose, S. J., Ruud, I.E., Schiller, Andreas, Siem, Sunniva, Tornyi, T., Tveten, G.M., Voinov, A., and Wiedeking, M.
Abstract: An unexpected enhancement in the low-energy part of the gamma-strength function for light and medium-mass nuclei has been discovered at the Oslo Cyclotron Laboratory. This enhancement could lead to an increase in the neutron-capture rates up to two orders of magnitude for very exotic, neutron-rich nuclei. However, it is still an open question whether this structure persists when approaching the neutron drip line., info:eu-repo/semantics/published
Published: 2014

39. Low-energy enhancement of nuclear gamma strength and its impact on astrophysical reaction rates

Author: Larsen, Ann-Cecilie, Blasi, N., Bracco, Angela, Burger, A., Camera, F., Eriksen, T.K., Giacoppo, F, Goriely, Stéphane, Guttormsen, Magne, Görgen, Andreas, Hagen, T.W., Harissopulos, Sotirios, Koehler, P.E., Leoni, S., Million, B., Nyhus, Hilde Therese, Renstrøm, Therese, Rose, S. J., Ruud, I.E., Schiller, Andreas, Siem, Sunniva, Tornyi, T., Tveten, G.M., Voinov, A., Wiedeking, M., Larsen, Ann-Cecilie, Blasi, N., Bracco, Angela, Burger, A., Camera, F., Eriksen, T.K., Giacoppo, F, Goriely, Stéphane, Guttormsen, Magne, Görgen, Andreas, Hagen, T.W., Harissopulos, Sotirios, Koehler, P.E., Leoni, S., Million, B., Nyhus, Hilde Therese, Renstrøm, Therese, Rose, S. J., Ruud, I.E., Schiller, Andreas, Siem, Sunniva, Tornyi, T., Tveten, G.M., Voinov, A., and Wiedeking, M.
Abstract: An unexpected enhancement in the low-energy part of the gamma-strength function for light and medium-mass nuclei has been discovered at the Oslo Cyclotron Laboratory. This enhancement could lead to an increase in the neutron-capture rates up to two orders of magnitude for very exotic, neutron-rich nuclei. However, it is still an open question whether this structure persists when approaching the neutron drip line., info:eu-repo/semantics/published
Published: 2014

40. Muons tomography applied to geosciences and volcanology

Author: Marteau, J., Gibert, D., Lesparre, N., Nicollin, F., Noli, P., Giacoppo, F., Marteau, J., Gibert, D., Lesparre, N., Nicollin, F., Noli, P., and Giacoppo, F.
Abstract: Imaging the inner part of large geological targets is an important issue in geosciences with various applications. Dif- ferent approaches already exist (e.g. gravimetry, electrical tomography) that give access to a wide range of informations but with identified limitations or drawbacks (e.g. intrinsic ambiguity of the inverse problem, time consuming deployment of sensors over large distances). Here we present an alternative and complementary tomography method based on the measurement of the cosmic muons flux attenuation through the geological structures. We detail the basics of this muon tomography with a special emphasis on the photo-active detectors., Comment: Invited talk at the 6th conference on New Developments In Photodetection (NDIP'11), Lyon-France, July 4-8, 2011; Nuclear Instruments and Methods in Physics Research Section A, 2011
Published: 2012
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41. 17F breakup reactions: A touchstone for indirect measurements

Author: De Napoli, M., Raciti, G, Sfienti, C, Capel, Pierre, Baye, Daniel Jean, Giacoppo, F, Rapisarda, E, Cardella, G, Descouvemont, Pierre, Mazzocchi, C., Sparenberg, Jean-Marc, De Napoli, M., Raciti, G, Sfienti, C, Capel, Pierre, Baye, Daniel Jean, Giacoppo, F, Rapisarda, E, Cardella, G, Descouvemont, Pierre, Mazzocchi, C., and Sparenberg, Jean-Marc
Abstract: info:eu-repo/semantics/published
Published: 2011

42. 17F breakup reactions: A touchstone for indirect measurements

Author: Sfienti, C, Raciti, G, Capel, Pierre, Baye, Daniel Jean, De Napoli, M., Giacoppo, F, Rapisarda, E, Cardella, G, Descouvemont, Pierre, Sparenberg, Jean-Marc, Mazzocchi, C., Sfienti, C, Raciti, G, Capel, Pierre, Baye, Daniel Jean, De Napoli, M., Giacoppo, F, Rapisarda, E, Cardella, G, Descouvemont, Pierre, Sparenberg, Jean-Marc, and Mazzocchi, C.
Abstract: info:eu-repo/semantics/published
Published: 2011

43. Flubber experiment: analysing the Coulomb breakup of 17F

Author: Capel, Pierre, Sfienti, C, Cardella, G, De Napoli, M., Giacoppo, F, Raciti, G, Rapisarda, E, Mazzocchi, C., Baye, Daniel Jean, Descouvemont, Pierre, Sparenberg, Jean-Marc, Capel, Pierre, Sfienti, C, Cardella, G, De Napoli, M., Giacoppo, F, Raciti, G, Rapisarda, E, Mazzocchi, C., Baye, Daniel Jean, Descouvemont, Pierre, and Sparenberg, Jean-Marc
Abstract: info:eu-repo/semantics/published
Published: 2011

44. 17F breakup reactions: A touchstone for indirect measurements

Author: Sfienti, C, Raciti, G, Capel, Paul, Baye, Daniel Jean, Napoli, M De, Giacoppo, F, Rapisarda, E, Cardella, G, Descouvemont, Pierre, CMazzocchi, Sparenberg, Jean-Marc, Sfienti, C, Raciti, G, Capel, Paul, Baye, Daniel Jean, Napoli, M De, Giacoppo, F, Rapisarda, E, Cardella, G, Descouvemont, Pierre, CMazzocchi, and Sparenberg, Jean-Marc
Abstract: Dissociation has become an essential tool in several domains of nuclear physics. It provides useful information about the structure of halo nuclei, and Coulomb breakup can be used as an indirect method to measure radiative-capture cross sections at stellar energies. Though simple it may seem, this indirect technique relies on peculiar assumptions. Recent theoretical analyses of the Coulomb breakup of 8B have shown that these assumptions are not all satisfied. Whereas many experimental investigations on such a phenomenon have been conducted on 8B, the case of 17F has been poorly addressed up to now. An exclusive study of 17F breakup reactions has thus been performed at the FRIBs facility of the Laboratori Nazionali del Sud, Catania (Italy). The experimental setup and the detector systems allowed the measurement, event-by-event, of the X-Y coordinates of the interaction point on the target as well as the momenta and angles of all outgoing decay particles with a geometrical efficiency of 72% and a resolution of approximately 300 keV. The first results and preliminary model comparison are reported., info:eu-repo/semantics/published
Published: 2011

45. 17F breakup reactions: A touchstone for indirect measurements

Author: Sfienti, C, Raciti, G, Capel, Pierre, Baye, Daniel Jean, De Napoli, M., Giacoppo, F, Rapisarda, E, Cardella, G, Descouvemont, Pierre, Sparenberg, Jean-Marc, Mazzocchi, C., Sfienti, C, Raciti, G, Capel, Pierre, Baye, Daniel Jean, De Napoli, M., Giacoppo, F, Rapisarda, E, Cardella, G, Descouvemont, Pierre, Sparenberg, Jean-Marc, and Mazzocchi, C.
Abstract: info:eu-repo/semantics/published
Published: 2011

46. 17F breakup reactions: A touchstone for indirect measurements

Author: De Napoli, M., Raciti, G, Sfienti, C, Capel, Pierre, Baye, Daniel Jean, Giacoppo, F, Rapisarda, E, Cardella, G, Descouvemont, Pierre, Mazzocchi, C., Sparenberg, Jean-Marc, De Napoli, M., Raciti, G, Sfienti, C, Capel, Pierre, Baye, Daniel Jean, Giacoppo, F, Rapisarda, E, Cardella, G, Descouvemont, Pierre, Mazzocchi, C., and Sparenberg, Jean-Marc
Abstract: info:eu-repo/semantics/published
Published: 2011

47. Flubber experiment: analysing the Coulomb breakup of 17F

Author: Capel, Pierre, Sfienti, C, Cardella, G, De Napoli, M., Giacoppo, F, Raciti, G, Rapisarda, E, Mazzocchi, C., Baye, Daniel Jean, Descouvemont, Pierre, Sparenberg, Jean-Marc, Capel, Pierre, Sfienti, C, Cardella, G, De Napoli, M., Giacoppo, F, Raciti, G, Rapisarda, E, Mazzocchi, C., Baye, Daniel Jean, Descouvemont, Pierre, and Sparenberg, Jean-Marc
Abstract: info:eu-repo/semantics/published
Published: 2011

48. 17F breakup reactions: A touchstone for indirect measurements

Author: Sfienti, C, Raciti, G, Capel, Paul, Baye, Daniel Jean, Napoli, M De, Giacoppo, F, Rapisarda, E, Cardella, G, Descouvemont, Pierre, CMazzocchi, Sparenberg, Jean-Marc, Sfienti, C, Raciti, G, Capel, Paul, Baye, Daniel Jean, Napoli, M De, Giacoppo, F, Rapisarda, E, Cardella, G, Descouvemont, Pierre, CMazzocchi, and Sparenberg, Jean-Marc
Abstract: Dissociation has become an essential tool in several domains of nuclear physics. It provides useful information about the structure of halo nuclei, and Coulomb breakup can be used as an indirect method to measure radiative-capture cross sections at stellar energies. Though simple it may seem, this indirect technique relies on peculiar assumptions. Recent theoretical analyses of the Coulomb breakup of 8B have shown that these assumptions are not all satisfied. Whereas many experimental investigations on such a phenomenon have been conducted on 8B, the case of 17F has been poorly addressed up to now. An exclusive study of 17F breakup reactions has thus been performed at the FRIBs facility of the Laboratori Nazionali del Sud, Catania (Italy). The experimental setup and the detector systems allowed the measurement, event-by-event, of the X-Y coordinates of the interaction point on the target as well as the momenta and angles of all outgoing decay particles with a geometrical efficiency of 72% and a resolution of approximately 300 keV. The first results and preliminary model comparison are reported., info:eu-repo/semantics/published
Published: 2011

49. Flubber experiment: Analysing the Coulomb breakup of 17F

Author: Capel, Pierre, Descouvemont, Pierre, Sparenberg, Jean-Marc, Sfienti, Concettina, Cardella, Giuseppe, De Napoli, M., Giacoppo, F, Raciti, Giovanni, Rapisarda, Ernesto, Mazzocchi, Chiara, Baye, Daniel Jean, Capel, Pierre, Descouvemont, Pierre, Sparenberg, Jean-Marc, Sfienti, Concettina, Cardella, Giuseppe, De Napoli, M., Giacoppo, F, Raciti, Giovanni, Rapisarda, Ernesto, Mazzocchi, Chiara, and Baye, Daniel Jean
Abstract: Coulomb breakup has been proposed as an indirect technique to infer radiative-capture cross sections at low energies. To test this idea we have performed the Flubber experiment at the FRIBs facility of the Laboratori Nazionali del Sud (Catania, Italy). In this experiment, we have measured the breakup of 17F on lead at 40AMeV. The motivation of this measurement is reported as well as preliminary experimental data., SCOPUS: cp.p, info:eu-repo/semantics/published
Published: 2011

50. Flubber experiment: measuring 17F Coulomb breakup

Author: Capel, Pierre, Sfienti, C, Cardella, G, De Napoli, M., Giacoppo, F, Raciti, G, Rapisarda, E, Mazzocchi, C., Baye, Daniel Jean, Descouvemont, Pierre, Sparenberg, Jean-Marc, Capel, Pierre, Sfienti, C, Cardella, G, De Napoli, M., Giacoppo, F, Raciti, G, Rapisarda, E, Mazzocchi, C., Baye, Daniel Jean, Descouvemont, Pierre, and Sparenberg, Jean-Marc
Abstract: info:eu-repo/semantics/published
Published: 2010

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