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@article{Ade:2014:0004-6361/201321569,
author = {Ade, PAR and Aghanim, N and Armitage-Caplan, C and Arnaud, M and Ashdown, M and Atrio-Barandela, F and Aumont, J and Baccigalupi, C and Banday, AJ and Barreiro, RB and Bartlett, JG and Bartolo, N and Battaner, E and Benabed, K and Benoit, A and Benoit-Levy, A and Bernard, J-P and Bersanelli, M and Bielewicz, P and Bobin, J and Bock, JJ and Bonaldi, A and Bond, JR and Borrill, J and Bouchet, FR and Bridges, M and Bucher, M and Burigana, C and Butler, RC and Calabrese, E and Cardoso, J-F and Catalano, A and Challinor, A and Chamballu, A and Chiang, HC and Chiang, L-Y and Christensen, PR and Church, S and Clements, DL and Colombi, S and Colombo, LPL and Couchot, F and Coulais, A and Crill, BP and Curto, A and Cuttaia, F and Danese, L and Davies, RD and Davis, RJ and de, Bernardis P and de, Rosa A and de, Zotti G and Delabrouille, J and Delouis, J-M and Desert, F-X and Dickinson, C and Diego, JM and Dole, H and Donzelli, S and Dore, O and Douspis, M and Dunkley, J and Dupac, X and Efstathi},
doi = {0004-6361/201321569},
journal = {Astronomy and Astrophysics},
pages = {1--43},
title = {Planck 2013 results. XXII. Constraints on inflation},
url = {http://dx.doi.org/10.1051/0004-6361/201321569},
volume = {571},
year = {2014}
}

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TY  - JOUR
AB  - We analyse the implications of the Planck data for cosmic inflation. The Planck nominal mission temperature anisotropy measurements, combinedwith the WMAP large-angle polarization, constrain the scalar spectral index to be ns = 0.9603 ± 0.0073, ruling out exact scale invariance atover 5σ. Planck establishes an upper bound on the tensor-to-scalar ratio of r < 0.11 (95% CL). The Planck data thus shrink the space of allowedstandard inflationary models, preferring potentials with V00 < 0. Exponential potential models, the simplest hybrid inflationary models, andmonomial potential models of degree n ≥ 2 do not provide a good fit to the data. Planck does not find statistically significant running of thescalar spectral index, obtaining dns/dln k = −0.0134 ± 0.0090. We verify these conclusions through a numerical analysis, which makes no slowrollapproximation, and carry out a Bayesian parameter estimation and model-selection analysis for a number of inflationary models includingmonomial, natural, and hilltop potentials. For each model, we present the Planck constraints on the parameters of the potential and exploreseveral possibilities for the post-inflationary entropy generation epoch, thus obtaining nontrivial data-driven constraints. We also present a directreconstruction of the observable range of the inflaton potential. Unless a quartic term is allowed in the potential, we find results consistent withsecond-order slow-roll predictions. We also investigate whether the primordial power spectrum contains any features. We find that models with aparameterized oscillatory feature improve the fit by χ2eff ≈ 10; however, Bayesian evidence does not prefer these models. We constrain severalsingle-field inflation models with generalized Lagrangians by combining power spectrum data with Planck bounds on fNL. Planck constrains withunprecedented accuracy the amplitude and possible correlation (with the adiabatic mode) of non-decaying iso
AU  - Ade,PAR
AU  - Aghanim,N
AU  - Armitage-Caplan,C
AU  - Arnaud,M
AU  - Ashdown,M
AU  - Atrio-Barandela,F
AU  - Aumont,J
AU  - Baccigalupi,C
AU  - Banday,AJ
AU  - Barreiro,RB
AU  - Bartlett,JG
AU  - Bartolo,N
AU  - Battaner,E
AU  - Benabed,K
AU  - Benoit,A
AU  - Benoit-Levy,A
AU  - Bernard,J-P
AU  - Bersanelli,M
AU  - Bielewicz,P
AU  - Bobin,J
AU  - Bock,JJ
AU  - Bonaldi,A
AU  - Bond,JR
AU  - Borrill,J
AU  - Bouchet,FR
AU  - Bridges,M
AU  - Bucher,M
AU  - Burigana,C
AU  - Butler,RC
AU  - Calabrese,E
AU  - Cardoso,J-F
AU  - Catalano,A
AU  - Challinor,A
AU  - Chamballu,A
AU  - Chiang,HC
AU  - Chiang,L-Y
AU  - Christensen,PR
AU  - Church,S
AU  - Clements,DL
AU  - Colombi,S
AU  - Colombo,LPL
AU  - Couchot,F
AU  - Coulais,A
AU  - Crill,BP
AU  - Curto,A
AU  - Cuttaia,F
AU  - Danese,L
AU  - Davies,RD
AU  - Davis,RJ
AU  - de,Bernardis P
AU  - de,Rosa A
AU  - de,Zotti G
AU  - Delabrouille,J
AU  - Delouis,J-M
AU  - Desert,F-X
AU  - Dickinson,C
AU  - Diego,JM
AU  - Dole,H
AU  - Donzelli,S
AU  - Dore,O
AU  - Douspis,M
AU  - Dunkley,J
AU  - Dupac,X
AU  - Efstathiou,G
AU  - Ensslin,TA
AU  - Eriksen,HK
AU  - Finelli,F
AU  - Forni,O
AU  - Frailis,M
AU  - Franceschi,E
AU  - Galeotta,S
AU  - Ganga,K
AU  - Gauthier,C
AU  - Giard,M
AU  - Giardino,G
AU  - Giraud-Heraud,Y
AU  - Gonzalez-Nuevo,J
AU  - Gorski,KM
AU  - Gratton,S
AU  - Gregorio,A
AU  - Gruppuso,A
AU  - Hamann,J
AU  - Hansen,FK
AU  - Hanson,D
AU  - Harrison,D
AU  - Henrot-Versille,S
AU  - Hernandez-Monteagudo,C
AU  - Herranz,D
AU  - Hildebrandt,SR
AU  - Hivon,E
AU  - Hobson,M
AU  - Holmes,WA
AU  - Hornstrup,A
AU  - Hovest,W
AU  - Huffenberger,KM
AU  - Jaffe,AH
AU  - Jaffe,TR
AU  - Jones,WC
AU  - Juvela,M
AU  - Keihaenen,E
AU  - Keskitalo,R
AU  - Kisner,TS
AU  - Kneissl,R
AU  - Knoche,J
AU  - Knox,L
AU  - Kunz,M
AU  - Kurki-Suonio,H
AU  - Lagache,G
AU  - Laehteenmaeki,A
AU  - Lamarre,J-M
AU  - Lasenby,A
AU  - Laureijs,RJ
AU  - Lawrence,CR
AU  - Leach,S
AU  - Leahy,JP
AU  - Leonardi,R
AU  - Lesgourgues,J
AU  - Lewis,A
AU  - Liguori,M
AU  - Lilje,PB
AU  - Linden-Vornle,M
AU  - Lopez-Caniego,M
AU  - Lubin,PM
AU  - Macias-Perez,JF
AU  - Maffei,B
AU  - Maino,D
AU  - Mandolesi,N
AU  - Maris,M
AU  - Marshall,DJ
AU  - Martin,PG
AU  - Martinez-Gonzalez,E
AU  - Masi,S
AU  - Massardi,M
AU  - Matarrese,S
AU  - Matthai,F
AU  - Mazzotta,P
AU  - Meinhold,PR
AU  - Melchiorri,A
AU  - Mendes,L
AU  - Mennella,A
AU  - Migliaccio,M
AU  - Mitra,S
AU  - Miville-Deschenes,M-A
AU  - Moneti,A
AU  - Montier,L
AU  - Morgante,G
AU  - Mortlock,D
AU  - Moss,A
AU  - Munshi,D
AU  - Murphy,JA
AU  - Naselsky,P
AU  - Nati,F
AU  - Natoli,P
AU  - Netterfield,CB
AU  - Norgaard-Nielsen,HU
AU  - Noviello,F
AU  - Novikov,D
AU  - Novikov,I
AU  - O'Dwyer,IJ
AU  - Osborne,S
AU  - Oxborrow,CA
AU  - Paci,F
AU  - Pagano,L
AU  - Pajot,F
AU  - Paladini,R
AU  - Pandolfi,S
AU  - Paoletti,D
AU  - Par
DO  - 0004-6361/201321569
EP  - 43
PY  - 2014///
SN  - 1432-0746
SP  - 1
TI  - Planck 2013 results. XXII. Constraints on inflation
T2  - Astronomy and Astrophysics
UR  - http://dx.doi.org/10.1051/0004-6361/201321569
UR  - http://hdl.handle.net/10044/1/47906
VL  - 571
ER  -

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