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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:15 |
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Conference: Bucharest University Faculty of Physics 2015 Meeting
Section: Theoretical Physics and Applied Mathematics
Title:
Pairing and quarteting correlations in nuclear systems: spatial properties
Authors:
Virgil V. BARAN, Doru S. DELION
Affiliation:
1) Department of Theoretical Physics,National Institute of Physics and Nuclear Engineering "Horia Hulubei"
Physics Faculty, University of Bucharest
2)Department of Theoretical Physics,National Institute of Physics and Nuclear Engineering "Horia Hulubei"
E-mail
virgilbaran@gmail.com
Keywords:
nuclear structure, pairing, quarteting, coherence length
Abstract:
The main interesting physical quantity we study is the coherence length, defined as the root mean square of the relative distance averaged with the pairing tensor. Intuitively it gives the size of the Cooper pair centered at a certain point inside the nucleus [1]. We investigate this coherence length as obtained from schematic pairing potentials. We then generalize to quarteting correlations by considering the coherence length build out of proton and neutron pairs. We point out the main differences between the pairing and quarteting coherence lengths. Finally we comment on the important role of proton-neutron correlations as they strongly modify the behaviour of the coherence length when taken into account.[2]
References:
[1] N. Pillet, N. Sandulescu and P. Schuck, Phys. Rev. C 76, 024310 (2007)
[2] D.S. Delion, V.V. Baran, Phys. Rev. C 91, 024312 (2015)
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