Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Attila Csoto"'
Publikováno v:
Nuclear Physics A. 719:C283-C286
We investigate the triple-alpha process and the Oklo phenomenon to obtain constraints on possible cosmological time variations of fundamental constants. Specifically we study cosmological temporal constraints for the fine structure constant and nucle
Autor:
Attila Csoto, Karlheinz Langanke
Publikováno v:
Few-Body Systems. 29:121-130
The He3(He4,gamma)Be7 and H3(He4,gamma)Li7 reactions are studied in an extended two-cluster model which contains alpha+h/t and Li6+p/n clusterizations. We show that the inclusion of the Li6+p/n channels can significantly change the zero-energy reacti
Autor:
Attila Csoto, Karlheinz Langanke
Publikováno v:
Nuclear Physics A. 646:387-396
The He3(He3,2p)He4 and H3(H3,2n)He4 reactions are studied in a microscopic cluster model. We search for resonances in the He3+He3 and He4+p+p channels using methods that treat the two- and three-body resonance asymptotics correctly. Our results show
Autor:
Attila Csoto, Gerald M. Hale
Publikováno v:
Physical Review C. 59:1207-1210
Publikováno v:
Nuclear Physics A. 638:714-726
The R- and K-matrix parametrizations are analyzed and compared for the elastic alpha-alpha scattering at center-of-mass energies below 40 MeV. The two parametrizations differ in their definitions of the resonance energy which can lead to quite differ
Autor:
Attila Csoto
Publikováno v:
Acta Physica Hungarica A) Heavy Ion Physics. 6:103-106
The importance of the7Be(p, γ)8B reaction in predicting the high-energy solar neutrino flux is discussed. I present a microscopic eight-body model and a potential model for the calculation of the7Be(p, γ)8B cross section.
Publikováno v:
Physical Review C. 56:631-634
The importance of $n$-$p$ radiative capture, utilizing polarized cold neutrons, as a means of measuring the weak pion coupling constant is reviewed. Parity conserving processes of the form ${\mathbf{k}}_{\ensuremath{\gamma}}\ensuremath{\cdot}({\mathb
Publikováno v:
Nuclear Physics A. 618:55-64
We search for three-alpha resonances in C-12 by using the complex scaling method in a microscopic cluster model. All experimentally known low-lying natural-parity states are localized. For the first time we unambiguously show that the 0+_2 state in C
Autor:
Attila Csoto
Publikováno v:
Physics Letters B. 394:247-252
I show that off-shell effects, like antisymmetrization and Be-7 distortions, can significantly influence the energy dependence of the nonresonant Be7(p,gamma)B8 astrophysical S factor at higher energies. The proper treatment of these effects results
Autor:
Attila Csoto, Karlheinz Langanke
Publikováno v:
Nuclear Physics A. 601:131-140
We study the parity-violating alpha+d decay of the lowest 0+ state of Li-6 in a microscopic three-cluster model. The initial bound and the final scattering states are described consistently within the same model. The parity-violating decay width is c