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Röder, M.; Adachi, T.; Aksyutina, Y.; Alcántara, Juan; Altstadt, S.; Álvarez‐Pol, H.; Ashwood, N. I.; Atar, L.; Aumann, T.; Avdeichikov, V.V.; Barr, M.; Beceiro, S.; Bemmerer, D.; Benlliure, J.; Bertulani, C. A.; Boretzky, K.; Borge, María José García; Burgunder, G.; Caamaño, M.; Caesar, C.; Casarejos, E.; Catford, W. N.; Cederkäll, J.; Chakraborty, Sovan; Chartier, M.; Chulkov, L. V.; Cortina-Gil, D.; Crespo, R.; Pramanik, U. Datta; Fernandez, P. Diaz; Dillmann, I.; Elekes, Z.; Enders, J.; Ershova, O.; Estradé, A.; Farinon, F.; Fraile, L. M.; Freer, M.; Freudenberger, M.; Fynbo, H. O. U.; Galaviz, D.; Geißel, H.; Gernhäuser, R.; Göbel, K.; Golubev, P.; González-Díaz, D.; Hagdahl, J.; Heftrich, T.; Heil, M.; Heine, M.; Heinz, A.; Henriques, A.; Holl, M.; Ickert, G.; Ignatov, A.; Jakobsson, B.; Johansson, H.; Jonson, B.; Kalantar‐Nayestanaki, N.; Kanungo, R.; Kelić-Heil, A.; Knöbel, R.; Kröll, T.; Krücken, R.; Kurcewicz, J.; Kurz, N.; Labiche, M.; Langer, C.; Bleis, T. Le; Lemmon, R. C.; Lepyoshkina, O.; Lindberg, Simon; Machado, J.; Marganiec, J.; Mostazo, M.; Movsesyan, A.; Najafi, Bijan; Nilsson, T.; Nociforo, C.; Panin, V.; Paschalis, S.; Perea, Á.; Petri, M.; Piétri, S.; Plag, R.; Procházka, A.; Rahaman, Hafizur; Rastrepina, G.; Reifarth, R.; Ribeiro, G.; Ricciardi, M. V.; Rigollet, C.; Riisager, K.; Rossi, D.; Saez, J. Sanchez del Rio; Savran, D.; Scheit, H.; Simon, H.; Sorlin, O.; Stoica, Victor; Štreicher, B.; Taylor, J. T.; Tengblad, O.; Terashima, S.; Thies, R.; Togano, Y.; Uberseder, E.; Walle, J. Van de; Velho, P.; Волков, В. А.; Wagner, A.; Wamers, F.; Weick, H.; Weigand, M.; Wheldon, C.; Wilson, G. L.; Wimmer, Christian; Winfield, J. S.; Woods, P. J.; Yakorev, D.; Zhukov, M. V.; Zilges, A.; Zuber, Κ.

doi:10.1103/physrevc.93.065807

Cited by 9 publications

(28 citation statements)

References 29 publications

(45 reference statements)

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“…A detailed description of the setup can be found in Refs. [25,[29][30][31][32]. The experiment was performed with CH 2 (458 and 922 mg=cm 2 ) and C (558 and 935 mg=cm 2 ) targets as well as with an empty target frame.…”

mentioning

confidence: 99%

Quasifree ( p , 2p ) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength

Atar¹,

Paschalis²,

Barbieri³

et al. 2018

Phys. Rev. Lett.

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Quasifree one-proton knockout reactions have been employed in inverse kinematics for a systematic study of the structure of stable and exotic oxygen isotopes at the R^{3}B/LAND setup with incident beam energies in the range of 300-450 MeV/u. The oxygen isotopic chain offers a large variation of separation energies that allows for a quantitative understanding of single-particle strength with changing isospin asymmetry. Quasifree knockout reactions provide a complementary approach to intermediate-energy one-nucleon removal reactions. Inclusive cross sections for quasifree knockout reactions of the type ^{A}O(p,2p)^{A-1}N have been determined and compared to calculations based on the eikonal reaction theory. The reduction factors for the single-particle strength with respect to the independent-particle model were obtained and compared to state-of-the-art ab initio predictions. The results do not show any significant dependence on proton-neutron asymmetry.

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mentioning

confidence: 99%

Quasifree ( p , 2p ) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength

Atar¹,

Paschalis²,

Barbieri³

et al. 2018

Phys. Rev. Lett.

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“…The experiment was performed at GSI, Darmstadt in Germany, where the isotopes 29,30 Na and 33 Mg and 35 Al were produced by fragmentation of a 40 Ar beam with an energy of 540A MeV using the FRS-ALADIN-LAND setup. The fragments were separated by the fragment separator (FRS) [37] and the secondary beams were transported to the experimental site for complete kinematic measurements using 208 Pb, 12 C, and empty secondary targets.…”

Section: Methodsmentioning

confidence: 99%

“…The data for the neutron capture reaction rate on light neutronrich nuclei are also important for understanding r-process concerning the neutrino-driven wind model and the impact of light neutron-rich nuclei as seed nuclei. Until recently, (n, γ ) capture cross sections measured using this method have been reported only for lower sd-shell neutron-rich nuclei [32,33]. In this work, we shall report the measurements of the neutron capture cross sections for the upper sd and p f shell neutron-rich nuclei, 28 Na(n, γ ) 29 Na, 29 Na(n, γ ) 30 Na, 32 Mg(n, γ ) 33 Mg, and 34 Al(n, γ ) 35 Al that were considered as seed nuclei in the neutrino-driven wind model.…”

Section: Introductionmentioning

confidence: 99%

“…Until recently, (n, γ ) capture cross sections measured using this method have been reported only for lower sd-shell neutron-rich nuclei [32,33]. In this work, we shall report the measurements of the neutron capture cross sections for the upper sd and p f shell neutron-rich nuclei, 28 Na(n, γ ) 29 Na, 29 Na(n, γ ) 30 Na, 32 Mg(n, γ ) 33 Mg, and 34 Al(n, γ ) 35 Al that were considered as seed nuclei in the neutrino-driven wind model. We utilized the indirect CD method to study the time-reversed reactions 29 Na(γ , n) 28 Na, 30 Na(γ , n) 29 Na, and 33 Mg(γ , n) 32 Mg in inverse kinematics.…”

Section: Introductionmentioning

confidence: 99%

“…In this work, we shall report the measurements of the neutron capture cross sections for the upper sd and p f shell neutron-rich nuclei, 28 Na(n, γ ) 29 Na, 29 Na(n, γ ) 30 Na, 32 Mg(n, γ ) 33 Mg, and 34 Al(n, γ ) 35 Al that were considered as seed nuclei in the neutrino-driven wind model. We utilized the indirect CD method to study the time-reversed reactions 29 Na(γ , n) 28 Na, 30 Na(γ , n) 29 Na, and 33 Mg(γ , n) 32 Mg in inverse kinematics. The CD cross sections were measured through kinematically complete measurements using a 208 Pb target and the FRS-LAND setup at GSI, Darmstadt, Germany.…”

Section: Introductionmentioning

confidence: 99%

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Neutron capture cross sections of light neutron-rich nuclei relevant for r -process nucleosynthesis

Bhattacharyya¹,

Pramanik²,

Rahaman³

et al. 2021

Phys. Rev. C

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The measurements of neutron capture cross sections of neutron-rich nuclei are challenging but essential for understanding nucleosynthesis and stellar evolution processes in the explosive burning scenario. In the quest of r-process abundances, according to the neutrino-driven-wind model, light neutron-rich unstable nuclei may play a significant role as seed nuclei that influence the abundance pattern. Hence, experimental data for neutron capture cross sections of neutron-rich nuclei are needed. Coulomb dissociation of radioactive ion beams at intermediate energy is a powerful indirect method for inferring capture cross section. As a test case for validation of the indirect method, the neutron capture cross section (n, γ ) for 14 C was inferred from the Coulomb dissociation of 15 C at intermediate energy (600A MeV). A comparison between different theoretical approaches and experimental results for the reaction is discussed. We report for the first time experimental reaction cross sections of 28 Na(n, γ ) 29 Na, 29 Na(n, γ ) 30 Na, 32 Mg(n, γ ) 33 Mg, and 34 Al(n, γ ) 35 Al. The reaction cross sections were inferred indirectly through Coulomb dissociation of 29,30 Na, 33 Mg, and 35 Al at incident projectile energies around 400-430 A MeV using the FRS-LAND setup at GSI, Darmstadt. The neutron capture cross sections were obtained from the photoabsorption cross sections with the aid of the detailed balance theorem. The reaction rates for the neutron-rich Na, Mg, Al nuclei at typical r-process temperatures were obtained from the measured (n, γ ) capture cross sections. The measured neutron capture reaction rates of the neutron-rich nuclei, 28 Na, 29 Na, and 34 Al are significantly lower than those predicted by the Hauser-Feshbach decay model. A similar trend was observed earlier for 17 C and 19 N but in the case of 14 C(n, γ ) 15 C the trend is opposite. The situation is more complicated when the ground state has a multi-particle-hole configuration. For 32 Mg, the measured cross section is about 40-90 % higher than the Hauser-Feshbach prediction.

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Study of a possible silicon photomultiplier based readout of the large plastic scintillator neutron detector NeuLAND

Hensel

Weinberger

Bemmerer

et al. 2023

Nuclear Instruments and Methods in Physics Research Section A:

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Coulomb dissociation ofN20,21

Cited by 9 publications

References 29 publications

Quasifree ( p , 2p ) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength

Quasifree ( p , 2p ) Reactions on Oxygen Isotopes: Observation of Isospin Independence of the Reduced Single-Particle Strength

Neutron capture cross sections of light neutron-rich nuclei relevant for r -process nucleosynthesis

Study of a possible silicon photomultiplier based readout of the large plastic scintillator neutron detector NeuLAND

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