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Realistic Earth matter density for CP violation in a very long baseline neutrino oscillation
Dan LY(单连友); Wang YF(王贻芳); Yang ZG(杨长根); Zhang XM(张新民); Shan, LY; Wang, YF; Yang, CG; Zhang, XM; Liu, FT; Young, BL
Source PublicationPHYSICAL REVIEW D
Corresponding AuthorChinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China ; CCAST, World Lab, Beijing 100080, Peoples R China ; Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China ; Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA
AbstractWe investigate three Earth density models for the measurement of the CP phase in very long baseline neutrino oscillation experiments to study the effect of the potential error due to Earth density uncertainties. Two of the density models which are commonly used are global models. The third provides a more realistic density profile which takes into account the local density variation along a specific 2100 km baseline. We find significant differences among these density models. The more realistic density model has a smaller intrinsic density fluctuation and hence allows better control of the error caused by the Earth density uncertainty. We also find that the conventional CP violation (CPV) variable, i.e., the CP odd difference, is in general small. Under the running conditions assumed in the present calculation, the differences of this CPV variable among the different density models and even the CPV variable itself can be dominated over by statistical and systematic errors. Therefore, other more suitable CPV variables have to be considered in the extraction of the CP phase.
Subject AreaAstronomy & Astrophysics; Physics
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000184583700011
ADS Bibcode2003PhRvD..68a3002S
ADS URLhttps://ui.adsabs.harvard.edu/abs/2003PhRvD..68a3002S
ADS CITATIONShttps://ui.adsabs.harvard.edu/abs/2003PhRvD..68a3002S/citations
Citation statistics
Cited Times:11 [INSPIRE]
Cited Times:10 [ADS]
Document Type期刊论文
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Dan LY,Wang YF,Yang ZG,et al. Realistic Earth matter density for CP violation in a very long baseline neutrino oscillation[J]. PHYSICAL REVIEW D,2003,68(1):13002.
APA 单连友.,王贻芳.,杨长根.,张新民.,Shan, LY.,...&Young, BL.(2003).Realistic Earth matter density for CP violation in a very long baseline neutrino oscillation.PHYSICAL REVIEW D,68(1),13002.
MLA 单连友,et al."Realistic Earth matter density for CP violation in a very long baseline neutrino oscillation".PHYSICAL REVIEW D 68.1(2003):13002.
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