Physics Letters B (Mar 2020)
Experimentally well-constrained masses of 27P and 27S: Implications for studies of explosive binary systems
- L.J. Sun,
- X.X. Xu,
- S.Q. Hou,
- C.J. Lin,
- J. José,
- J. Lee,
- J.J. He,
- Z.H. Li,
- J.S. Wang,
- C.X. Yuan,
- F. Herwig,
- J. Keegans,
- T. Budner,
- D.X. Wang,
- H.Y. Wu,
- P.F. Liang,
- Y.Y. Yang,
- Y.H. Lam,
- P. Ma,
- F.F. Duan,
- Z.H. Gao,
- Q. Hu,
- Z. Bai,
- J.B. Ma,
- J.G. Wang,
- F.P. Zhong,
- C.G. Wu,
- D.W. Luo,
- Y. Jiang,
- Y. Liu,
- D.S. Hou,
- R. Li,
- N.R. Ma,
- W.H. Ma,
- G.Z. Shi,
- G.M. Yu,
- D. Patel,
- S.Y. Jin,
- Y.F. Wang,
- Y.C. Yu,
- Q.W. Zhou,
- P. Wang,
- L.Y. Hu,
- X. Wang,
- H.L. Zang,
- P.J. Li,
- Q.Q. Zhao,
- H.M. Jia,
- L. Yang,
- P.W. Wen,
- F. Yang,
- M. Pan,
- X.Y. Wang,
- Z.G. Hu,
- R.F. Chen,
- M.L. Liu,
- W.Q. Yang,
- Y.M. Zhao
Affiliations
- L.J. Sun
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China; Department of Physics, The University of Hong Kong, Hong Kong, China; School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
- X.X. Xu
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China; Department of Physics, The University of Hong Kong, Hong Kong, China; CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Corresponding author at: CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
- S.Q. Hou
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; NuGrid collaboration22 http://www.nugridstars.org.
- C.J. Lin
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China; College of Physics and Technology, Guangxi Normal University, Guilin 541004, China; Corresponding author at: Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China.
- J. José
- Departament de Física, EEBE, Universitat Politécnica de Catalunya, Av./ Eduard Maristany 10, E-08930 Barcelona, Spain; Institut d'Estudis Espacials de Catalunya (IEEC), Ed. Nexus-201, C/ Gran Capitá 2-4, E-08034 Barcelona, Spain; Corresponding author at: Departament de Física, EEBE, Universitat Politécnica de Catalunya, Av./ Eduard Maristany 10, E-08930 Barcelona, Spain.
- J. Lee
- Department of Physics, The University of Hong Kong, Hong Kong, China; Corresponding author at: Department of Physics, The University of Hong Kong, Hong Kong, China.
- J.J. He
- Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China; University of Chinese Academy of Sciences, Beijing 100049, China
- Z.H. Li
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- J.S. Wang
- School of Science, Huzhou University, Huzhou 313000, China; CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
- C.X. Yuan
- Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai 519082, China
- F. Herwig
- Department of Physics & Astronomy, University of Victoria, Victoria, BC, V8W 2Y2, Canada; Joint Institute for Nuclear Astrophysics, Center for the Evolution of the Elements, Michigan State University, East Lansing, MI 48824, USA; NuGrid collaboration22 http://www.nugridstars.org.
- J. Keegans
- E.A. Milne Centre for Astrophysics, Department of Physics & Mathematics, University of Hull, Hull HU6 7RX, UK; NuGrid collaboration22 http://www.nugridstars.org.
- T. Budner
- Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- D.X. Wang
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- H.Y. Wu
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- P.F. Liang
- Department of Physics, The University of Hong Kong, Hong Kong, China
- Y.Y. Yang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Y.H. Lam
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- P. Ma
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- F.F. Duan
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China; CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Z.H. Gao
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
- Q. Hu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Z. Bai
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- J.B. Ma
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- J.G. Wang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- F.P. Zhong
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China; College of Physics and Technology, Guangxi Normal University, Guilin 541004, China
- C.G. Wu
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- D.W. Luo
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- Y. Jiang
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- Y. Liu
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- D.S. Hou
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
- R. Li
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
- N.R. Ma
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- W.H. Ma
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; Institute of Modern Physics, Fudan University, Shanghai 200433, China
- G.Z. Shi
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- G.M. Yu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- D. Patel
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- S.Y. Jin
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China; University of Chinese Academy of Sciences, Beijing 100049, China
- Y.F. Wang
- School of Physics and Astronomy, Yunnan University, Kunming 650091, China; CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Y.C. Yu
- School of Physics and Astronomy, Yunnan University, Kunming 650091, China; CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Q.W. Zhou
- School of Physical Science and Technology, Southwest University, Chongqing 400044, China; CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- P. Wang
- School of Physical Science and Technology, Southwest University, Chongqing 400044, China; CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- L.Y. Hu
- Fundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Harbin 150001, China
- X. Wang
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- H.L. Zang
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
- P.J. Li
- Department of Physics, The University of Hong Kong, Hong Kong, China
- Q.Q. Zhao
- Department of Physics, The University of Hong Kong, Hong Kong, China
- H.M. Jia
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- L. Yang
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- P.W. Wen
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- F. Yang
- Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- M. Pan
- School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China; Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
- X.Y. Wang
- School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China
- Z.G. Hu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- R.F. Chen
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- M.L. Liu
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- W.Q. Yang
- CAS Key Laboratory of High Precision Nuclear Spectroscopy, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
- Y.M. Zhao
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China
- Journal volume & issue
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Vol. 802
Abstract
The mass of 27P is expected to impact the X-ray burst (XRB) model predictions of burst light curves and the composition of the burst ashes, but large uncertainties and inconsistencies still exist in the reported 27P masses. We have used the β-decay spectroscopy of 27S to determine the most precise mass excess of 27P to date to be −659(9) keV, which is 63 keV (2.3σ) higher and a factor of 3 more precise than the value recommended in the 2016 Atomic Mass Evaluation. Based on the new 27P mass, the Si26(p,γ)27P reaction rate and its uncertainty were recalculated using Monte Carlo techniques. We also estimated the previously unknown mass excess of 27S to be 17678(77) keV, based on the measured β-delayed two-proton energy and the Coulomb displacement energy relations. The impact of these well-constrained masses and reaction rates on the modeling of the explosive astrophysical scenarios has been investigated by post-processing XRB and hydrodynamic nova models. Compared to the model calculations based on the masses and rates from databases, the abundance of A=26 in the burst ashes is increased by a factor of 2.4, while no substantial change was found in the XRB energy generation rate or the light curve. Our calculation also suggests that 27S is not a significant waiting point in the rapid proton capture process, and the change of the Si26(p,γ)27P reaction rate is not sufficiently large to affect the conclusion previously drawn on the nova contribution to the synthesis of galactic 26Al. Keywords: Masses of 27P and 27S, Si26(p,γ)27P reaction, X-ray bursts, Nova outbursts
