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NON-EXTENSIVE STATISTICS TO THE COSMOLOGICAL LITHIUM PROBLEM
Hou, S. Q.1; He, J. J.1,2; Parikh, A.3,4; Kahl, D.5; Bertulani, C. A.6; Kajino, T.7,8,9; Mathews, G. J.8,10; Zhao, G.2
2017-01-10
发表期刊ASTROPHYSICAL JOURNAL
卷号834期号:2
摘要Big Bang nucleosynthesis (BBN) theory predicts the abundances of the light elements D, He-3, He-4, and Li-7 produced in the early universe. The primordial abundances of D and He-4 inferred from observational data are in good agreement with predictions, however, BBN theory overestimates the primordial Li-7 abundance by about a factor of three. This is the so-called "cosmological lithium problem." Solutions to this problem using conventional astrophysics and nuclear physics have not been successful over the past few decades, probably indicating the presence of new physics during the era of BBN. We have investigated the impact on BBN predictions of adopting a generalized distribution to describe the velocities of nucleons in the framework of Tsallis non-extensive statistics. This generalized velocity distribution is characterized by a parameter q, and reduces to the usually assumed Maxwell-Boltzmann distribution for q = 1. We find excellent agreement between predicted and observed primordial abundances of D, He-4, and Li-7 for 1.069 <= q <= 1.082, suggesting a possible new solution to the cosmological lithium problem.
文章类型Article
关键词Early Universe Plasmas Primordial Nucleosynthesis
WOS标题词Science & Technology ; Physical Sciences
资助者National Natural Science Foundation of China(11490562 ; National Natural Science Foundation of China(11490562 ; Major State Basic Research Development Program of China(2016YFA0400503) ; Major State Basic Research Development Program of China(2016YFA0400503) ; Spanish MICINN(AYA2013-42762) ; Spanish MICINN(AYA2013-42762) ; U.S. DOE Grant(DDE-FG02-08ER41533) ; U.S. DOE Grant(DDE-FG02-08ER41533) ; U.S. NSF grant(PHY-1415656) ; U.S. NSF grant(PHY-1415656) ; NSF CUSTIPEN grant(DE-FG02-13ER42025) ; NSF CUSTIPEN grant(DE-FG02-13ER42025) ; 11675229) ; 11675229) ; National Natural Science Foundation of China(11490562 ; National Natural Science Foundation of China(11490562 ; Major State Basic Research Development Program of China(2016YFA0400503) ; Major State Basic Research Development Program of China(2016YFA0400503) ; Spanish MICINN(AYA2013-42762) ; Spanish MICINN(AYA2013-42762) ; U.S. DOE Grant(DDE-FG02-08ER41533) ; U.S. DOE Grant(DDE-FG02-08ER41533) ; U.S. NSF grant(PHY-1415656) ; U.S. NSF grant(PHY-1415656) ; NSF CUSTIPEN grant(DE-FG02-13ER42025) ; NSF CUSTIPEN grant(DE-FG02-13ER42025) ; 11675229) ; 11675229)
DOI10.3847/1538-4357/834/2/165
关键词[WOS]BIG-BANG NUCLEOSYNTHESIS ; THERMONUCLEAR REACTION-RATES ; PRIMORDIAL NUCLEOSYNTHESIS ; WMAP OBSERVATIONS ; ABUNDANCE ; COMPILATION ; ENERGIES ; ELEMENTS ; PHYSICS ; MODELS
收录类别SCI
语种英语
资助者National Natural Science Foundation of China(11490562 ; National Natural Science Foundation of China(11490562 ; Major State Basic Research Development Program of China(2016YFA0400503) ; Major State Basic Research Development Program of China(2016YFA0400503) ; Spanish MICINN(AYA2013-42762) ; Spanish MICINN(AYA2013-42762) ; U.S. DOE Grant(DDE-FG02-08ER41533) ; U.S. DOE Grant(DDE-FG02-08ER41533) ; U.S. NSF grant(PHY-1415656) ; U.S. NSF grant(PHY-1415656) ; NSF CUSTIPEN grant(DE-FG02-13ER42025) ; NSF CUSTIPEN grant(DE-FG02-13ER42025) ; 11675229) ; 11675229) ; National Natural Science Foundation of China(11490562 ; National Natural Science Foundation of China(11490562 ; Major State Basic Research Development Program of China(2016YFA0400503) ; Major State Basic Research Development Program of China(2016YFA0400503) ; Spanish MICINN(AYA2013-42762) ; Spanish MICINN(AYA2013-42762) ; U.S. DOE Grant(DDE-FG02-08ER41533) ; U.S. DOE Grant(DDE-FG02-08ER41533) ; U.S. NSF grant(PHY-1415656) ; U.S. NSF grant(PHY-1415656) ; NSF CUSTIPEN grant(DE-FG02-13ER42025) ; NSF CUSTIPEN grant(DE-FG02-13ER42025) ; 11675229) ; 11675229)
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000400138600003
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8854
专题光学天文研究部
作者单位1.Chinese Acad Sci, Inst Modern Phys, Key Lab High Precis Nucl Spect, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Key Lab Opt Astron, Natl Astron Observ, Beijing 100012, Peoples R China
3.Univ Politecn Cataluna, EUETIB, Dept Fis & Engn Nucl, E-08036 Barcelona, Spain
4.Inst Estudis Espacials Catalunya, E-08034 Barcelona, Spain
5.Univ Tokyo, Ctr Nucl Study, RIKEN Campus, Wako, Saitama 3510198, Japan
6.Texas A&M Univ, Commerce, TX 75429 USA
7.Univ Tokyo, Sch Sci, Dept Astron, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
8.Natl Astron Observ Japan, 2-21-1 Osawa, Mitaka, Tokyo 1818588, Japan
9.Univ Beijing, Sch Phys & Nucl Energy Engn, Int Res Ctr Big Bang Cosmol & Element Genesis, Beijing 100191, Peoples R China
10.Univ Notre Dame, Dept Phys, Ctr Astrophys, Notre Dame, IN 46556 USA
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Hou, S. Q.,He, J. J.,Parikh, A.,et al. NON-EXTENSIVE STATISTICS TO THE COSMOLOGICAL LITHIUM PROBLEM[J]. ASTROPHYSICAL JOURNAL,2017,834(2).
APA Hou, S. Q..,He, J. J..,Parikh, A..,Kahl, D..,Bertulani, C. A..,...&Zhao, G..(2017).NON-EXTENSIVE STATISTICS TO THE COSMOLOGICAL LITHIUM PROBLEM.ASTROPHYSICAL JOURNAL,834(2).
MLA Hou, S. Q.,et al."NON-EXTENSIVE STATISTICS TO THE COSMOLOGICAL LITHIUM PROBLEM".ASTROPHYSICAL JOURNAL 834.2(2017).
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