Indirect mass determination for the neutron-deficient nuclides 44V, 48Mn, 52Co and 56Cu

X. L. Tu; Yu A. Litvinov; K. Blaum; B. Mei; B. H. Sun; Y. Sun; M. Wang; H. S. Xu; Y. H. Zhang

doi:10.1016/j.nuclphysa.2015.09.016

Indirect mass determination for the neutron-deficient nuclides ⁴⁴V, ⁴⁸Mn, ⁵²Co and ⁵⁶Cu

X. L. Tu^*
, Yu A. Litvinov
, K. Blaum
, B. Mei
, B. H. Sun
, Y. Sun
, M. Wang
, H. S. Xu
, Y. H. Zhang

^*Corresponding author for this work

School of Physics

CAS - Institute of Modern Physics
GSI Helmholtz Centre for Heavy Ion Research
Max Planck Institute for Nuclear Physics
Shanghai Jiao Tong University

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Mass excess values for ⁴⁴V, ⁵²Co and ⁵⁶Cu are derived indirectly using the mirror symmetry and known data from beta-delayed proton spectroscopy. The new mass excess obtained by using the energy conservation for ⁴⁸Mn is -29303(14) keV, which is an improvement by about an order of magnitude compared to the AME'12 value. Compared to previously known data, the new proton separation energy for ⁴⁵Cr causes a ~3.5 times smaller matter flow through the CaSc cycle during the rp-process. Obtained proton separation energies for ⁵²Co and ⁵⁶Cu are about 500 keV larger than the AME'12 values. If confirmed, this would affect photo disintegration rates of ⁵²Co (γ, p) ⁵¹Fe and ⁵⁶Cu (γ, p) ⁵⁵Ni reactions during the rp-process in X-ray bursts.

Original language	English
Pages (from-to)	89-94
Number of pages	6
Journal	Nuclear Physics A
Volume	945
DOIs	https://doi.org/10.1016/j.nuclphysa.2015.09.016
State	Published - 1 Jan 2016

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

CaSc cycle
Mass excess
Rp-process
Separation energy

Access to Document

10.1016/j.nuclphysa.2015.09.016

Cite this

@article{db268c7612c1467c93e6cc7e1cfe5eaa,

title = "Indirect mass determination for the neutron-deficient nuclides 44V, 48Mn, 52Co and 56Cu",

abstract = "Mass excess values for 44V, 52Co and 56Cu are derived indirectly using the mirror symmetry and known data from beta-delayed proton spectroscopy. The new mass excess obtained by using the energy conservation for 48Mn is -29303(14) keV, which is an improvement by about an order of magnitude compared to the AME'12 value. Compared to previously known data, the new proton separation energy for 45Cr causes a \textasciitilde{}3.5 times smaller matter flow through the CaSc cycle during the rp-process. Obtained proton separation energies for 52Co and 56Cu are about 500 keV larger than the AME'12 values. If confirmed, this would affect photo disintegration rates of 52Co (γ, p) 51Fe and 56Cu (γ, p) 55Ni reactions during the rp-process in X-ray bursts.",

keywords = "CaSc cycle, Mass excess, Rp-process, Separation energy",

author = "Tu, \{X. L.\} and Litvinov, \{Yu A.\} and K. Blaum and B. Mei and Sun, \{B. H.\} and Y. Sun and M. Wang and Xu, \{H. S.\} and Zhang, \{Y. H.\}",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2016",

month = jan,

day = "1",

doi = "10.1016/j.nuclphysa.2015.09.016",

language = "英语",

volume = "945",

pages = "89--94",

journal = "Nuclear Physics A",

issn = "0375-9474",

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TY - JOUR

T1 - Indirect mass determination for the neutron-deficient nuclides 44V, 48Mn, 52Co and 56Cu

AU - Tu, X. L.

AU - Litvinov, Yu A.

AU - Blaum, K.

AU - Mei, B.

AU - Sun, B. H.

AU - Sun, Y.

AU - Wang, M.

AU - Xu, H. S.

AU - Zhang, Y. H.

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Mass excess values for 44V, 52Co and 56Cu are derived indirectly using the mirror symmetry and known data from beta-delayed proton spectroscopy. The new mass excess obtained by using the energy conservation for 48Mn is -29303(14) keV, which is an improvement by about an order of magnitude compared to the AME'12 value. Compared to previously known data, the new proton separation energy for 45Cr causes a ~3.5 times smaller matter flow through the CaSc cycle during the rp-process. Obtained proton separation energies for 52Co and 56Cu are about 500 keV larger than the AME'12 values. If confirmed, this would affect photo disintegration rates of 52Co (γ, p) 51Fe and 56Cu (γ, p) 55Ni reactions during the rp-process in X-ray bursts.

AB - Mass excess values for 44V, 52Co and 56Cu are derived indirectly using the mirror symmetry and known data from beta-delayed proton spectroscopy. The new mass excess obtained by using the energy conservation for 48Mn is -29303(14) keV, which is an improvement by about an order of magnitude compared to the AME'12 value. Compared to previously known data, the new proton separation energy for 45Cr causes a ~3.5 times smaller matter flow through the CaSc cycle during the rp-process. Obtained proton separation energies for 52Co and 56Cu are about 500 keV larger than the AME'12 values. If confirmed, this would affect photo disintegration rates of 52Co (γ, p) 51Fe and 56Cu (γ, p) 55Ni reactions during the rp-process in X-ray bursts.

KW - CaSc cycle

KW - Mass excess

KW - Rp-process

KW - Separation energy

UR - https://www.scopus.com/pages/publications/84944383064

U2 - 10.1016/j.nuclphysa.2015.09.016

DO - 10.1016/j.nuclphysa.2015.09.016

M3 - 文章

AN - SCOPUS:84944383064

SN - 0375-9474

VL - 945

SP - 89

EP - 94

JO - Nuclear Physics A

JF - Nuclear Physics A

ER -