Detecting higher spin fields through statistical anisotropy in the CMB and galaxy power spectra

被引：45

作者：

Bartolo, Nicola ^{[1
,2
,3
]}

Kehagias, Alex ^{[4
]}

Liguori, Michele ^{[1
,2
,3
]}

Riotto, Antonio ^{[5
,6
]}

Shiraishi, Maresuke ^{[7
]}

Tansella, Vittorio ^{[5
,6
]}

机构：

[1] Univ Padua, Dipartimento Fis & Astron G Galilei, Via Marzolo 8, I-35131 Padua, Italy

[2] INFN, Sez Padova, Via Marzolo 8, I-35131 Padua, Italy

[3] INAF, Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy

[4] Natl Tech Univ Athens, Phys Div, Zografou Campus, Athens 15780, Greece

[5] Dept Theoret Phys, 24 Quai E Ansermet, CH-1211 Geneva 4, Switzerland

[6] Ctr Astroparticle Phys, 24 Quai E Ansermet, CH-1211 Geneva 4, Switzerland

[7] Kagawa Coll, Natl Inst Technol, Dept Gen Educ, 355 Chokushi Cho, Takamatsu, Kagawa 7618058, Japan

来源：

PHYSICAL REVIEW D | 2018年 / 97卷 / 02期

基金：

瑞士国家科学基金会;

关键词：

NON-GAUSSIANITY; INFLATION; SPACE;

D O I：

10.1103/PhysRevD.97.023503

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Primordial inflation may represent the most powerful collider to test high-energy physics models. In this paper we study the impact on the inflationary power spectrum of the comoving curvature perturbation in the specific model where massive higher spin fields are rendered effectively massless during a de Sitter epoch through suitable couplings to the inflaton field. In particular, we show that such fields with spin s induce a distinctive statistical anisotropic signal on the power spectrum, in such a way that not only the usual g(2M)-statistical anisotropy coefficients, but also higher-order ones (i.e., g(4M), g(6M), ... , g((2s-2)M) and g((2s)M)) are nonvanishing. We examine their imprints in the cosmic microwave background and galaxy power spectra. Our Fisher matrix forecasts indicate that the detectability of g(LM) depends very weakly on L: all coefficients could be detected in near future if their magnitudes are bigger than about 10(-3).

引用

页数：10

共 73 条

[1] Imprints of a primordial preferred direction on the microwave background [J].

Ackerman, Lotty ;

Carroll, Sean M. ;

Wise, Mark B. .

PHYSICAL REVIEW D, 2007, 75 (08)

[2] Planck 2015 results XVII. Constraints on primordial non-Gaussianity [J].

Ade, P. A. R. ;

Aghanim, N. ;

Arnaud, M. ;

Arrojam, F. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Battaner, E. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bonaldi, A. ;

Bonavera, L. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chiang, H. C. ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Combet, C. ;

Couchot, F. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. ;

Davies, R. D. ;

Davis, R. J. ;

de Bernardis, P. .

ASTRONOMY & ASTROPHYSICS, 2016, 594

[3] Planck 2013 results. XXIII. Isotropy and statistics of the CMB [J].

Ade, P. A. R. ;

Aghanim, N. ;

Armitage-Caplan, C. ;

Arnaud, M. ;

Ashdown, M. ;

Atrio-Barandela, F. ;

Aumont, J. ;

Baccigalupi, C. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartlett, J. G. ;

Bartolo, N. ;

Battaner, E. ;

Battye, R. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bobin, J. ;

Bock, J. J. ;

Bonaldi, A. ;

Bonavera, L. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Bridges, M. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Cardoso, J. -F. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chary, R. -R. ;

Chiang, H. C. ;

Chiang, L. -Y ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Couchot, F. ;

Coulais, A. ;

Crill, B. P. ;

Cruz, M. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. .

ASTRONOMY & ASTROPHYSICS, 2014, 571

[4] Planck 2015 results XVI. Isotropy and statistics of the CMB [J].

Ade, P. A. R. ;

Aghanim, N. ;

Akrami, Y. ;

Aluri, P. K. ;

Arnaud, M. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Battaner, E. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bonaldi, A. ;

Bonavera, L. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Casaponsa, B. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chiang, H. C. ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Combet, C. ;

Contreras, D. ;

Couchot, F. ;

Coulais, A. ;

Crill, B. P. ;

Cruz, M. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. .

ASTRONOMY & ASTROPHYSICS, 2016, 594

[5] Planck 2015 results XIII. Cosmological parameters [J].

Ade, P. A. R. ;

Aghanim, N. ;

Arnaud, M. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartlett, J. G. ;

Bartolo, N. ;

Battaner, E. ;

Battye, R. ;

Benabed, K. ;

Benoit, A. ;

Benoit-Levy, A. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bonaldi, A. ;

Bonavera, L. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Catalano, A. ;

Challinor, A. ;

Chamballu, A. ;

Chary, R. -R. ;

Chiang, H. C. ;

Chluba, J. ;

Christensen, P. R. ;

Church, S. ;

Clements, D. L. ;

Colombi, S. ;

Colombo, L. P. L. ;

Combet, C. ;

Coulais, A. ;

Crill, B. P. ;

Curto, A. ;

Cuttaia, F. ;

Danese, L. ;

Davies, R. D. ;

Davis, R. J. ;

de Bernardis, P. .

ASTRONOMY & ASTROPHYSICS, 2016, 594

[6]

[Anonymous], ARXIVASTROPH0604069

[7]

[Anonymous], PHYS REV D

[8]

[Anonymous], ARXIV11103193

[9]

Arkani-Hamed N., ARXIV150308043

[10] Anisotropic non-gaussianity from rotational symmetry breaking excited initial states [J].

Ashoorioon, Amjad ;

Casadio, Roberto ;

Koivisto, Tomi .

JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2016, (12)

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