NUMEN Project @ LNS : Heavy ions double charge exchange reactions towards the 0νββ nuclear matrix element determination

2015 ◽  
Author(s):  
C. Agodi ◽  
F. Cappuzzello ◽  
D. L. Bonanno ◽  
D. G. Bongiovanni ◽  
V. Branchina ◽  
...  
Keyword(s):  
Matrix Element ◽  
Charge Exchange ◽  
Nuclear Matrix ◽  
Heavy Ions ◽  
Nuclear Matrix Element ◽  
Exchange Reactions ◽  
Element Determination ◽  
Double Charge Exchange ◽  
Double Charge

scholarly journals Experimental Approaches to Neutrino Nuclear Responses for ββ Decays and Astro-Neutrinos

2021 ◽  
Vol 9 ◽  
Author(s):  
Hiroyasu Ejiri
Keyword(s):  
Matrix Element ◽  
Charge Exchange ◽  
Nuclear Matrix ◽  
Experimental Studies ◽  
Nuclear Matrix Element ◽  
Exchange Reactions ◽  
Fundamental Properties ◽  
Experimental Approaches ◽  
Nuclear Responses ◽  
Beta Decays

Fundamental properties of neutrinos are investigated by studying double beta decays (ββ-decays), while atro-neutrino nucleo-syntheses and astro-neutrino productions are investigated by studying inverse beta decays (inverse β-decays) induced by astro-neutrinos. Neutrino nuclear responses for these ββ and β-decays are crucial for these neutrino studies in nuclei. This reports briefly perspectives on experimental studies of neutrino nuclear responses (square of nuclear matrix element) for ββ-decays and astro-neutrinos by using nuclear and leptonic (muon) charge-exchange reactions

scholarly journals Heavy-ion double charge exchange reactions: A tool toward $0 \nu\beta\beta$ nuclear matrix elements

2015 ◽  
Vol 51 (11) ◽  
Author(s):  
F. Cappuzzello ◽  
M. Cavallaro ◽  
C. Agodi ◽  
M. Bondì ◽  
D. Carbone ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Nuclear Matrix ◽  
Heavy Ion ◽  
Matrix Elements ◽  
Exchange Reactions ◽  
Double Charge Exchange ◽  
Double Charge

scholarly journals Nuclear Matrix Elements for Heavy Ion Sequential Double Charge Exchange Reactions

Universe ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 98
Author(s):  
Horst Lenske ◽  
Jessica Bellone ◽  
Maria Colonna ◽  
Danilo Gambacurta
Keyword(s):  
Charge Exchange ◽  
Nuclear Matrix ◽  
Form Factors ◽  
Heavy Ion ◽  
Theoretical Background ◽  
Matrix Elements ◽  
Exchange Reactions ◽  
Charge Exchange Reaction ◽  
Double Charge Exchange ◽  
Double Charge

The theoretical approach to a sequential heavy ion double charge exchange reaction is presented. A brief introduction into the formal theory of second-order nuclear reactions and their application to Double Single Charge Exchange (DSCE) reactions by distorted wave theory is given, thereby completing the theoretical background to our recent work. Formally, the DSCE reaction amplitudes are shown to be separable into superpositions of distortion factors, accounting for initial and final state ion–ion interactions, and nuclear matrix elements. A broad space is given to the construction of nuclear DSCE response functions on the basis of polarization propagator theory. The nuclear response tensors resemble the nuclear matrix elements of 2νββ decay in structure but contain in general a considerable more complex multipole and spin structure. The QRPA theory is used to derive explicit expressions for nuclear matrix elements (NMEs). The differences between the NME of the first and the second interaction vertexes in a DSCE reaction is elucidated. Reduction schemes for the transition form factors are discussed by investigating the closure approximation and the momentum structure of form factors. DSCE unit strength cross sections are derived.

scholarly journals NUMEN Project @ LNS : Heavy Ions Double Charge Exchange as a tool towards the 0νββNuclear Matrix Element

2016 ◽  
Vol 724 ◽  
pp. 012001
Author(s):  
C. Agodi ◽  
F. Cappuzzello ◽  
D. L. Bonanno ◽  
D. G. Bongiovanni ◽  
V. Branchina ◽  
...  
Keyword(s):  
Matrix Element ◽  
Charge Exchange ◽  
Heavy Ions ◽  
Double Charge Exchange ◽  
Double Charge

Using Double Charge Exchange Reactions Towards $0\nu \beta \beta $ Nuclear Matrix Elements

2016 ◽  
Vol 47 (3) ◽  
pp. 929
Author(s):  
M. Cavallaro ◽  
F. Cappuzzello ◽  
C. Agodi ◽  
S. Calabrese ◽  
D. Carbone ◽  
...  
Keyword(s):  
Charge Exchange ◽  
Nuclear Matrix ◽  
Matrix Elements ◽  
Exchange Reactions ◽  
Double Charge Exchange ◽  
Double Charge
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