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Related papers: A new study of $^{10}$B(p,$\alpha$)$^{7}$Be reacti…

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The calculated rate of events in some of the existing solar neutrino detectors is directly proportional to the rate of the $^7$Be($p,\gamma)^8$B reaction measured in the laboratory at low energies. However, the low-energy cross sections of…

Nuclear Theory · Physics 2009-10-31 R. Shyam , I. J. Thompson

In a kinematically complete measurement of the $^{7}$Li($^{7}$Li,$\alpha$$^{6}$He)$^4$He reaction at $E_{i}$ = 8 MeV it was observed that the $^{10}$Be excited states at 9.6 and 10.2 MeV decay by $^{6}$He emission. The state at 10.2 MeV may…

Nuclear Experiment · Physics 2009-10-28 N. Soic , S. Blagus , M. Bogovac , S. Fazinic , M. Lattuada , M. Milin , Dj. Miljanic , D. Rendic , C. Spitaleri , T. Tadic , M. Zadro

An experiment with a newly developed high-resolution kaon spectrometer (HKS) and a scattered electron spectrometer with a novel configuration was performed in Hall C at Jefferson Lab (JLab). The ground state of a neutron-rich hypernucleus,…

We calculate the radiative capture cross section for $^7$Be($\alpha, \gamma$)$^{11}$C and its reaction rate of relevance for the big bang nucleosynthesis. The impact of this reaction on the primordial $^7$Li abundance is revised including…

Nuclear Theory · Physics 2018-08-08 M. Hartos , C. A. Bertulani , Shubhchintak , A. M. Mukhamedzhanov , S. Hou

The nucleus 11C plays an important role in the boron-proton fusion reactor environment as a catalyzer of the 10B(p,{\alpha})7Be reaction which, by producing a long-lived isotope of 7Be, poisons the aneutronic fusion process…

Nuclear Theory · Physics 2024-12-24 J. Okołowicz , M. Płoszajczak , W. Nazarewicz

The Li-7(p,gamma_0)Be-8 reaction is studied in a microscopic cluster model. All relevant subsystem properties are well reproduced. The calculated astrophysical S factor is in good agreement with the experimental data, although some M1…

Nuclear Theory · Physics 2009-10-30 Attila Csoto , Steven Karataglidis

We study the astrophysical reaction rate for the formation of $^{9}$Be through the three body reaction $\alpha(\alpha n,\gamma)$. This reaction is one of the key reactions which could bridge the mass gap at A = 8 nuclear systems to produce…

Nuclear Theory · Physics 2009-11-07 K. Sumiyoshi , H. Utsunomiya , S. Goko , T. Kajino

Lighter heavy elements beyond iron and up to around silver can form in neutrino-driven ejecta in core-collapse supernovae and neutron star mergers. Slightly neutron-rich conditions favour a weak r-process that follows a path close to…

Nuclear Experiment · Physics 2021-03-03 G. G. Kiss , T. N. Szegedi , P. Mohr , M. Jacobi , Gy. Gyürky , R. Huszánk , A. Arcones

Measurement of nuclear cross sections at astrophysical energies involving unstable species is one of the most challenging tasks in experimental nuclear physics. The use of indirect methods is often unavoidable in this scenario. In this…

The cross sections of nuclear reactions between the radioisotope $^7$Be and deuterium, a possible mechanism of reducing the production of mass-7 nuclides in Big-Bang nucleosynthesis, were measured at center-of-mass energies between 0.2 MeV…

The resonance region of $^{11}$B covering excitation energies from 8.4 MeV to 13.6 MeV was investigated with the $(d,p)$ reaction performed on an enriched $^{10}$B target at the Florida State University Super-Enge Split-Pole Spectrograph of…

Evidence for the presence of short-lived radioactive isotopes when the Solar System formed is preserved in meteorites, providing insights into the conditions at the birth of our Sun. A low-mass core-collapse supernova had been postulated as…

High Energy Astrophysical Phenomena · Physics 2022-07-27 A. Sieverding , J. S. Randhawa , D. Zetterberg , R. J. deBoer , T. Ahn , R. Mancino , G. Martinez-Pinedo , W. R. Hix

Background: In our recent experiment, $^9$Be+p at 5.67A MeV, the breakup decay rates to the 3 configurations, $\alpha$+$\alpha$+n, $^8$Be$^*$+n and $^5$He+$^4$He of $^9$Be, were observed and quantified, in a full kinematics approach.…

Quadrupole and octupole couplings to all bound states of $^7$Be are included in describing the capture reaction $^7$Be$(p,\gamma)^8$B. We verify, contrary to what we had initially stated, that the energy behaviour of the Astrophysical…

Nuclear Theory · Physics 2007-05-23 F. M. Nunes , R. Crespo , I. J. Thompson

The reaction 7Li(pi+,pi-)7B has been measured at incident pion energies of 30-90 MeV. 7Li constitutes the lightest target nucleus, where the pionic charge exchange may proceed as a binary reaction to a discrete final state. Like in the…

Nuclear Experiment · Physics 2009-10-31 J. Paetzold , R. Bilger , H. Clement , K. Foehl , J. Graeter , R. Meier , D. Schapler , G. J. Wagner , A. Denig , W. Kluge , M. Schepkin

Within the framework of the modified potential cluster model with a classification of orbital states according to Young diagrams, the possibility of describing experimental data for total cross sections of the neutron radiative capture on…

A theoretical study of the 7Be(p,gamma)8B reaction in the astrophysical energy range with the use of ab initio methods is presented. The used approaches are No-Core Shell Model and Cluster Channels Orthogonal Functions Method. The scheme…

Nuclear Theory · Physics 2026-03-31 D. Rodkin , Yu. Tchuvilsky

The extraction of detailed nuclear structure information from transfer reactions requires reliable, well-normalized data as well as optical potentials and a theoretical framework demonstrated to work well in the relevant mass and beam…