# Planck 2015. XX. Constraints on inflation

@inproceedings{Ade2015Planck2X,
title={Planck 2015. XX. Constraints on inflation},
author={P. A. R. Ade and Nabila Aghanim and Monique D. Arnaud and Frederico M. A. Arroja and Mark Ashdown and J. Aumont and Carlo Baccigalupi and Mario Ballardini and Anthony J. Banday and Rita Bel{\'e}n Barreiro and Nicola Bartolo and Eduardo Battaner and Karim Benabed and Aur{\'e}lien Benoit and Aur{\'e}lien Benoit-L{\'e}vy and J-Ph. Bernard and M. Bersanelli and Pawel Bielewicz and James J. Bock and Anna Bonaldi and Laura Bonavera and J. Richard Bond and Julian Borrill and Francois R. Bouchet and Francois Boulanger and Manfred Bucher and Carlo Burigana and R. C. Butler and Erminia Calabrese and J.-F. Cardoso and A. Catalano and Anthony Challinor and A. Chamballu and Ranga Ram Chary and H. C. Chiang and Philip R. Christensen and Sarah E. Church and David L. Clements and St{\'e}phane Colombi and Loris P. L. Colombo and C{\'e}line Combet and Dagoberto Contreras and François Couchot and A. Coulais and Brendan P. Crill and A. Fernandez Curto and F. Cuttaia and Luigi Danese and Rodney D. Davies and R. J. Davis and Paolo Bernardis and Adriano de Rosa and Gianfranco De Zotti and Jacques Delabrouille and F.-X. D{\'e}sert and Jose M. Diego and Herve A. Dole and Simona Donzelli and Olivier Dor{\'e} and Marian Douspis and Anne Ducout and Xavier Dupac and George P. Efstathiou and Franz Elsner and Torsten A. Ensslin and Hans Kristian Eriksen and J. R. Fergusson and Fabio Finelli and Olivier Forni and Marco Frailis and Aur'elien A. Fraisse and Enrico Franceschi and Anne Mette Frejsel and Andrei V. Frolov and S. Galeotta and Silvia Galli and Ken Ganga and C. Gauthier and Martin Giard and Yannick Giraud-H{\'e}raud and Eirik Gjerl{\o}w and Joaqu{\'i}n Gonz{\'a}lez-Nuevo and Krzysztof M. Gorski and Steven Gratton and Anna Gregorio and Alessandro Gruppuso and Jon E. Gudmundsson and Jan Hamann and W. J. Handley and F. K. Hansen and Duncan Hanson and D. L. Harrison and S. Henrot-Versill{\'e} and Carlos Hernandez-Monteagudo and Diego Herranz and Sergi R. Hildebrandt and Eric Hivon and Michael P. Hobson and Warren Albert Holmes and Allan Hornstrup and W. Hovest and Z. Huang and Kevin M. Huffenberger and Guillaume Hurier and Andrew H. Jaffe and Tess R. Jaffe and William C. Jones and Mika Juvela and Elina Keihanen and Reijo Keskitalo and J. Kim and Theodore Kisner and R{\"u}diger Kneissl and J{\"o}rg Knoche and Martin Kunz and Hannu Kurki-Suonio and Guilaine Lagache and Anne Lahteenmaki and J-M. Lamarre and Anthony N. Lasenby and Massimiliano Lattanzi and Charles R. Lawrence and Rodrigo Leonardi and Julien Lesgourgues and François L{\'e}vrier and A. M. Lewis and Michele Liguori and Per B. Lilje and M. J. D. Linden-V{\o}rnle and Marcos L{\'o}pez-Caniego and Philip Lubin and Y.-Z. Ma and J. F. Mac{\'i}as-P{\'e}rez and Gianmarco Maggio and Davide Maino and Nazzareno Mandolesi and Anna Mangilli and Michele Maris and P. G. Martin and Enrique Mart{\'i}nez-Gonz{\'a}lez and Silvia Masi and S. Matarrese and Peregrine M. McGehee and Peter Meinhold and Alessandro Melchiorri and Luis Mendes and Aniello Mennella and Marina Migliaccio and Supriyo Mitra and Marc-Antoine Miville-Desch{\^e}nes and Diego Molinari and Andrea Moneti and Laurent Montier and G. Morgante and Daniel J. Mortlock and Adam Moss and Moritz Munchmeyer and Dipak Munshi and J. Anthony Murphy and Pavel D. Naselsky and Federico Nati and Paolo Natoli and Calvin Barth Netterfield and Hans Ulrik N{\o}rgaard-Nielsen and Fabio Noviello and Dmitri D Novikov and Ilya Novikov and Carol Anne Oxborrow and Francesco Paci and Luca Pagano and François Pajot and Roberta Paladini and Silvia Pandolfi and Daniela Paoletti and Fabio Pasian and Guillaume Patanchon and Timothy J. Pearson and Hiranya V. Peiris and Olivier Perdereau and L. Perotto and F. Perrotta and Valeria Pettorino and Francesco Piacentini and Michel Piat and Elena Pierpaoli and Davide Pietrobon and St{\'e}phane Plaszczynski and Etienne Pointecouteau and Gianluca Polenta and L. A. Popa and Gabriel W. Pratt and Gary Marcel Prezeau and Simon Prunet and J-L. Puget and Jorg P. Rachen and William T. Reach and Rafael Rebolo and Martin Reinecke and Mathieu Remazeilles and C'ecile Renault and Alessandro Renzi and Isabelle Ristorcelli and Graca M. Rocha and C. Dutruc Rosset and Mariachiara Rossetti and Gael M. Roudier and Michael Rowan-Robinson and Jos{\'e} Alberto Rubi{\~n}o-Mart{\'i}n and Ben Rusholme and M. Sandri and D. Santos and Matti Savelainen and Giorgio Savini and Douglas Scott and Michael Dean Seiffert and E. P. S. Shellard and Maresuke Shiraishi and Locke D Spencer and Vasily Stolyarov and Radek Stompor and R. Sudiwala and Rashid Sunyaev and David O. Sutton and A.-S. Suur-Uski and J. -F. Sygnet and Jan Tauber and Luca Terenzi and Luigi Toffolatti and Maurizio Tomasi and M. Tristram and Tiziana Trombetti and Marco Tucci and Jussi Tuovinen and Luca Valenziano and Jussi Valiviita and Bartjan van Tent and Patricio Vielva and Fabrizio Villa and L A Wade and Benjamin D. Wandelt and Ingunn Kathrine Wehus and Martin White and D. Yvon and Andrea Zacchei and James P. Zibin and Andrea Zonca},
year={2015}
}
• Published 7 February 2015
• Physics
We analyse the implications of the Planck data for cosmic inflation. The Planck nominal mission temperature anisotropy measurements, combined with the WMAP large-angle polarization, constrain the scalar spectral index to $n_s = 0.9603 \pm 0.0073$, ruling out exact scale invariance at over 5 $\sigma$. Planck establishes an upper bound on the tensor-to-scalar ratio of r 2 do not provide a good fit to the data. Planck does not find statistically significant running of the scalar spectral index…
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