Is cosmology compatible with sterile neutrinos?

被引：38

作者：

Dodelson, Scott ^{[1
]}

Melchiorri, Alessandro

Slosar, Anze

机构：

[1] Fermilab Natl Accelerator Lab, Ctr Particle Astrophys, Batavia, IL 60510 USA

[2] Univ Roma La Sapienza, Dept Phys, I-00185 Rome, Italy

[3] Univ Roma La Sapienza, Sez INFN, I-00185 Rome, Italy

[4] Univ Ljubljana, Fac Math & Phys, Ljubljana 1000, Slovenia

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 97卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.97.041301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By combining data from cosmic microwave background experiments (including the recent WMAP third year results), large scale structure, and Lyman-alpha forest observations, we constrain the hypothesis of a fourth, sterile, massive neutrino. For the 3 massless+1 massive neutrino case, we bound the mass of the sterile neutrino to m(s)< 0.26 eV (0.44 eV) at 95% (99.9%) C.L., which excludes at high significance the sterile neutrino hypothesis as an explanation of the LSND anomaly. We generalize the analysis to account for active neutrino masses and the possibility that the sterile abundance is not thermal. In the latter case, the contraints in the (mass,density) plane are nontrivial. For a mass of > 1 or < 0.05 eV, the cosmological energy density in sterile neutrinos is always constrained to be omega(nu)< 0.003 at 95% C.L., but for a mass of similar to 0.25 eV, omega(nu) can be as large as 0.01.

引用

页数：4

共 36 条

[1] Telling three from four neutrinos with cosmology [J].

Abazajian, KN .

ASTROPARTICLE PHYSICS, 2003, 19 (02) :303-312

[2] SEARCH FOR NEUTRINO OSCILLATIONS AT 15, 40 AND 95 METERS FROM A NUCLEAR-POWER-REACTOR AT BUGEY [J].

ACHKAR, B ;

ALEKSAN, R ;

AVENIER, M ;

BAGIEU, G ;

BOUCHEZ, J ;

BRISSOT, R ;

CAVAIGNAC, JF ;

COLLOT, J ;

COUSINOU, MC ;

CUSSONNEAU, JP ;

DECLAIS, Y ;

DUFOUR, Y ;

FAVIER, J ;

GARCIAZ, F ;

KAJFASZ, E ;

DEKERRET, H ;

KOANG, DH ;

LEFIEVRE, B ;

LESQUOY, E ;

MALLET, J ;

METREF, A ;

NAGY, E ;

PESSARD, H ;

PIERRE, F ;

OBOLENSKY, M ;

STUTZ, A ;

WUTHRICK, JP .

NUCLEAR PHYSICS B, 1995, 434 (03) :503-532

[3]

Aguilar A, 2001, PHYS REV D, V64, DOI 10.1103/PhysRevD.64.112007

[4] Search for neutrino oscillations on a long base-line at the CHOOZ nuclear power station [J].

Apollonio, M ;

Baldini, A ;

Bemporad, C ;

Caffau, E ;

Cei, F ;

Déclais, Y ;

de Kerret, H ;

Dieterle, B ;

Etenko, A ;

Foresti, L ;

George, J ;

Giannini, G ;

Grassi, M ;

Kozlov, Y ;

Kropp, W ;

Kryn, D ;

Laiman, M ;

Lane, CE ;

Lefièvre, B ;

Machulin, I ;

Martemyanov, A ;

Martemyanov, V ;

Mikaelyan, L ;

Nicolò, D ;

Obolensky, M ;

Pazzi, R ;

Pieri, G ;

Price, L ;

Riley, S ;

Reeder, R ;

Sabelnikov, A ;

Santin, G ;

Skorokhvatov, M ;

Sobel, H ;

Steele, J ;

Steinberg, R ;

Sukhotin, S ;

Tomshaw, S ;

Veron, D ;

Vyrodov, V .

EUROPEAN PHYSICAL JOURNAL C, 2003, 27 (03) :331-374

[5] Upper limits for neutrino oscillations (ν)over-barμ→(ν)over-bare from muon decay at rest -: art. no. 112001 [J].

Armbruster, B ;

Blair, IM ;

Bodmann, BA ;

Booth, NE ;

Drexlin, G ;

Edgington, JA ;

Eichner, C ;

Eitel, K ;

Finckh, E ;

Gemmeke, H ;

Hössl, J ;

Jannakos, T ;

Jünger, P ;

Kleifges, M ;

Kleinfeller, J ;

Kretschmer, W ;

Maschuw, R ;

Oehler, C ;

Plischke, P ;

Reichenbacher, J ;

Ruf, C ;

Steidl, M ;

Wolf, J ;

Zeitnitz, B .

PHYSICAL REVIEW D, 2002, 65 (11)

[6] The Supernova Legacy Survey:: measurement of ΩM, ΩΛ and w from the first year data set [J].

Astier, P ;

Guy, J ;

Regnault, N ;

Pain, R ;

Aubourg, E ;

Balam, D ;

Basa, S ;

Carlberg, RG ;

Fabbro, S ;

Fouchez, D ;

Hook, IM ;

Howell, DA ;

Lafoux, H ;

Neill, JD ;

Palanque-Delabrouille, N ;

Perrett, K ;

Pritchet, CJ ;

Rich, J ;

Sullivan, M ;

Taillet, R ;

Aldering, G ;

Antilogus, P ;

Arsenijevic, V ;

Balland, C ;

Baumont, S ;

Bronder, J ;

Courtois, H ;

Ellis, RS ;

Filiol, M ;

Gonçalves, AC ;

Goobar, A ;

Guide, D ;

Hardin, D ;

Lusset, V ;

Lidman, C ;

McMahon, R ;

Mouchet, M ;

Mourao, A ;

Perlmutter, S ;

Ripoche, P ;

Tao, C ;

Walton, N .

ASTRONOMY & ASTROPHYSICS, 2006, 447 (01) :31-U31

[7] Search for νμ → νe oscillations in the NOMAD experiment [J].

Astier, P ;

Autiero, D ;

Baldisseri, A ;

Baldo-Ceolin, M ;

Banner, M ;

Bassompierre, G ;

Benslama, K ;

Besson, N ;

Bird, I ;

Blumenfeld, B ;

Bobisut, F ;

Bouchez, J ;

Boyd, S ;

Bueno, A ;

Bunyatov, S ;

Camilleri, L ;

Cardini, A ;

Cattaneo, PW ;

Cavasinni, V ;

Cervera-Villanueva, A ;

Challis, R ;

Chukanov, A ;

Collazuol, G ;

Conforto, G ;

Conta, C ;

Contalbrigo, M ;

Cousins, R ;

Daniels, D ;

Degaudenzi, H ;

Del Prete, T ;

De Santo, A ;

Dignan, T ;

Di Lella, L ;

Silva, EDE ;

Dumarchez, J ;

Ellis, M ;

Feldman, GJ ;

Ferrari, R ;

Ferrère, D ;

Flaminio, V ;

Fraternali, M ;

Gaillard, JM ;

Gangler, E ;

Geiser, A ;

Geppert, D ;

Gibin, D ;

Gninenko, S ;

Godley, A ;

Gomez-Candenas, JJ ;

Gosset, J .

PHYSICS LETTERS B, 2003, 570 (1-2) :19-31

[8] NEUTRINO OSCILLATIONS IN THE EARLY UNIVERSE [J].

BARBIERI, R ;

DOLGOV, A .

NUCLEAR PHYSICS B, 1991, 349 (03) :743-753

[9] Signatures of relativistic neutrinos in CMB anisotropy and matter clustering [J].

Bashinsky, S ;

Seljak, U .

PHYSICAL REVIEW D, 2004, 69 (08) :35

[10] The 2dF Galaxy Redshift Survey: power-spectrum analysis of the final data set and cosmological implications [J].

Cole, S ;

Percival, WJ ;

Peacock, JA ;

Norberg, P ;

Baugh, CM ;

Frenk, CS ;

Baldry, I ;

Bland-Hawthorn, J ;

Bridges, T ;

Cannon, R ;

Colless, M ;

Collins, C ;

Couch, W ;

Cross, NJG ;

Dalton, G ;

Eke, VR ;

De Propris, R ;

Driver, SP ;

Efstathiou, G ;

Ellis, RS ;

Glazebrook, K ;

Jackson, C ;

Jenkins, A ;

Lahav, O ;

Lewis, I ;

Lumsden, S ;

Maddox, S ;

Madgwick, D ;

Peterson, BA ;

Sutherland, W ;

Taylor, K .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 362 (02) :505-534

← 1 2 3 4 →