Cosmological measurement of neutrino mass in the presence of leptonic asymmetry

被引：19

作者：

Lesgourgues, J

Pastor, S

Prunet, S

机构：

[1] SISSA, ISAS, I-34014 Trieste, Italy

[2] Ist Nazl Fis Nucl, Sez Trieste, I-34014 Trieste, Italy

[3] CITA, Toronto, ON M5S 3H8, Canada

来源：

PHYSICAL REVIEW D | 2000年 / 62卷 / 02期

关键词：

D O I：

10.1103/PhysRevD.62.023001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show that even the smallest neutrino mass consistent with the Super-Kamiokande data is relevant for cosmological models of structure formation and cosmic microwave background (CMB) anisotropies, provided that a relic neutrino asymmetry exists. We calculate the precision with which a 0.07 eV neutrino mass could be extracted from CMB anisotropy and large-scale structure data by the future Planck satellite and Sloan Digital Sky Survey. We find that such a mass can be detected, assuming a large relic neutrino asymmetry still allowed by current experimental data. This measurement of the absolute value of the neutrino mass would be crucial for our understanding of neutrino models.

引用

页码：1 / 4

页数：4

共 32 条

[1]

ADAMS JA, 1998, WORKSH PHYS REL NEUT

[2] A NEW MECHANISM FOR BARYOGENESIS [J].

AFFLECK, I ;

DINE, M .

NUCLEAR PHYSICS B, 1985, 249 (02) :361-380

[3]

ALTHANASSOPOULO.C, 1996, PHYS REV LETT, V77, P3082

[4]

ALTHANASSOPOULO.C, 1978, PHYS REV LETT, V81, P1774

[5]

Bond JR, 1997, MON NOT R ASTRON SOC, V291, pL33

[6] Generation of large lepton asymmetries [J].

Casas, A ;

Cheng, WY ;

Gelmini, G .

NUCLEAR PHYSICS B, 1999, 538 (1-2) :297-308

[7] Cosmic complementarity: Joint parameter estimation from cosmic microwave background experiments and redshift surveys [J].

Eisenstein, DJ ;

Hu, W ;

Tegmark, M .

ASTROPHYSICAL JOURNAL, 1999, 518 (01) :2-23

[8] Large neutrino asymmetries from neutrino oscillations [J].

Foot, R ;

Thomson, MJ ;

Volkas, RR .

PHYSICAL REVIEW D, 1996, 53 (10) :R5349-R5353

[9] Evidence for oscillation of atmospheric neutrinos [J].

Fukuda, Y ;

Hayakawa, T ;

Ichihara, E ;

Inoue, K ;

Ishihara, K ;

Ishino, H ;

Itow, Y ;

Kajita, T ;

Kameda, J ;

Kasuga, S ;

Kobayashi, K ;

Kobayashi, Y ;

Koshio, Y ;

Miura, M ;

Nakahata, M ;

Nakayama, S ;

Okada, A ;

Okumura, K ;

Sakurai, N ;

Shiozawa, M ;

Suzuki, Y ;

Takeuchi, Y ;

Totsuka, Y ;

Yamada, S ;

Earl, M ;

Habig, A ;

Kearns, E ;

Messier, MD ;

Scholberg, K ;

Stone, JL ;

Sulak, LR ;

Walter, CW ;

Goldhaber, M ;

Barszczxak, T ;

Casper, D ;

Gajewski, W ;

Halverson, PG ;

Hsu, J ;

Kropp, WR ;

Price, LR ;

Reines, F ;

Smy, M ;

Sobel, HW ;

Vagins, MR ;

Ganezer, KS ;

Keig, WE ;

Ellsworth, RW ;

Tasaka, S ;

Flanagan, JW ;

Kibayashi, A .

PHYSICAL REVIEW LETTERS, 1998, 81 (08) :1562-1567

[10] Highest-energy cosmic rays from fermi-degenerate relic neutrinos consistent with Super-Kamiokande results [J].

Gelmini, G ;

Kusenko, A .

PHYSICAL REVIEW LETTERS, 1999, 82 (26) :5202-5204

← 1 2 3 4 →