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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
Source PublicationASTROPHYSICAL JOURNAL
Volume834Issue:2
AbstractBig 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.
SubtypeArticle
KeywordEarly Universe Plasmas Primordial Nucleosynthesis
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational 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
WOS KeywordBIG-BANG NUCLEOSYNTHESIS ; THERMONUCLEAR REACTION-RATES ; PRIMORDIAL NUCLEOSYNTHESIS ; WMAP OBSERVATIONS ; ABUNDANCE ; COMPILATION ; ENERGIES ; ELEMENTS ; PHYSICS ; MODELS
Indexed BySCI
Language英语
Funding OrganizationNational 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 Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000400138600003
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8854
Collection光学天文研究部
Affiliation1.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
Recommended Citation
GB/T 7714
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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