Isocurvature forecast in the anthropic axion window

被引：47

作者：

Hamann, J. ^{[1
]}

Hannestad, S. ^{[2
]}

Raffelt, G. G. ^{[3
]}

Wong, Y. Y. Y. ^{[4
]}

机构：

[1] Univ Savoie, CNRS, LAPTh, F-74941 Annecy Le Vieux, France

[2] Univ Aarhus, Dept Phys & Astron, DK-8000 Aarhus C, Denmark

[3] Werner Heisenberg Inst Phys, Max Planck Inst Phys, D-80805 Munich, Germany

[4] CERN, Dept Phys, Div Theory, CH-1211 Geneva 23, Switzerland

来源：

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2009年 / 06期

关键词：

axions; cosmological parameters from CMBR; dark matter theory; INFLATION; COSMOLOGY;

D O I：

10.1088/1475-7516/2009/06/022

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We explore the cosmological sensitivity to the amplitude of isocurvature fluctuations that would be caused by axions in the "anthropic window" where the axion decay constant f(a) >> 10(12) GeV and the initial misalignment angle Theta(i) << 1. In a minimal Lambda CDM cosmology extended with subdominant scale-invariant isocurvature fluctuations, existing data constrain the isocurvature fraction to alpha < 0.09 at 95% C.L. If no signal shows up, Planck can improve this constraint to 0.042 while an ultimate CMB probe limited only by cosmic variance in both temperature and E-polarisation can reach 0.017, about a factor of five better than the current limit. In the parameter space of f(a) and H-I (Hubble parameter during inflation) we identify a small region where axion detection remains within the reach of realistic cosmological probes.

引用

页数：14

共 32 条

[1] Review of particle physics [J].

Amsler, C. ;

Doser, M. ;

Antonelli, M. ;

Asner, D. M. ;

Babu, K. S. ;

Baer, H. ;

Band, H. R. ;

Barnett, R. M. ;

Bergren, E. ;

Beringer, J. ;

Bernardi, G. ;

Bertl, W. ;

Bichsel, H. ;

Biebel, O. ;

Bloch, P. ;

Blucher, E. ;

Blusk, S. ;

Cahn, R. N. ;

Carena, M. ;

Caso, C. ;

Cecccci, A. ;

Chakraborty, D. ;

Chen, M. -C. ;

Chivukula, R. S. ;

Cowan, G. ;

Dahl, O. ;

D'Ambrosio, G. ;

Damour, T. ;

de Gouvea, A. ;

DeGrand, T. ;

Dobrescu, B. ;

Drees, M. ;

Edwards, D. A. ;

Eidelman, S. ;

Elvira, V. D. ;

Erler, J. ;

Ezhela, V. V. ;

Feng, J. L. ;

Fetscher, W. ;

Fields, B. D. ;

Foster, B. ;

Gaisser, T. K. ;

Garren, L. ;

Gerber, H. -J. ;

Gerbier, G. ;

Gherghetta, T. ;

Giudice, G. F. ;

Goodman, M. ;

Grab, C. ;

Gritsan, A. V. .

PHYSICS LETTERS B, 2008, 667 (1-5) :1-+

[2]

[Anonymous], ASTROPH0604069 PLANC

[3]

[Anonymous], hep-th/0409059

[4] Probing eV-scale axions with CAST [J].

Arik, E. ;

Aune, S. ;

Autiero, D. ;

Barth, K. ;

Belov, A. ;

Beltran, B. ;

Borghi, S. ;

Bourlis, G. ;

Boydag, F. S. ;

Braeuninger, H. ;

Carmona, J. M. ;

Cebrian, S. ;

Cetin, S. A. ;

Collar, J. I. ;

Dafni, T. ;

Davenport, M. ;

Di Lella, L. ;

Dogan, O. B. ;

Eleftheriadis, C. ;

Elias, N. ;

Fanourakis, G. ;

Ferrer-Ribas, E. ;

Fischer, H. ;

Friedrich, P. ;

Franz, J. ;

Galan, J. ;

Geralis, T. ;

Giomataris, I. ;

Gninenko, S. ;

Gomez, H. ;

Hartmann, R. ;

Hasinoff, M. ;

Heinsius, F. H. ;

Hikmet, I. ;

Hoffmann, D. H. H. ;

Irastorza, I. G. ;

Jacoby, J. ;

Jakovcic, K. ;

Kang, D. ;

Koenigsmann, K. ;

Kotthaus, R. ;

Krcmar, M. ;

Kousouris, K. ;

Kuster, M. ;

Lakic, B. ;

Lasseur, C. ;

Liolios, A. ;

Ljubicic, A. ;

Lutz, G. ;

Luzon, G. .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2009, (02)

[5] Searches for astrophysical and cosmological axions [J].

Asztalos, Stephen J. ;

Rosenberg, Leslie J. ;

van Bibber, Karl ;

Sikivie, Pierre ;

Zioutas, Konstantin .

ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 2006, 56 :293-326

[6] Updating the axion cold dark matter energy density [J].

Bae, Kyu Jung ;

Huh, Ji-Haeng ;

Kim, Jihn E. .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2008, (09)

[7]

BAUMANN D, ARXIV08113919

[8] Isocurvature bounds on axions revisited [J].

Beltran, Maria ;

Garcia-Bellido, Juan ;

Lesgourgues, Julien .

PHYSICAL REVIEW D, 2007, 75 (10)

[9] General primordial cosmic perturbation [J].

Bucher, M ;

Moodley, K ;

Turok, N .

PHYSICAL REVIEW D, 2000, 62 (08) :1-10

[10] A new cosmological mass limit on thermal relic axions [J].

Hannestad, S ;

Mirizzi, A ;

Raffelt, G .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2005, (07) :11-26

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