BICEP/Keck constraints on attractor models of inflation and reheating

John Ellis, Marcos A.G. Garcia, Dimitri V. Nanopoulos, Keith A. Olive, Sarunas Verner

Research output: Contribution to journalArticlepeer-review

Abstract

Recent BICEP/Keck data on the cosmic microwave background, in combination with previous WMAP and Planck data, impose strong new constraints on the tilt in the scalar perturbation spectrum, Formula Presented, as well as the tensor-to-scalar ratio, Formula Presented. These constrain the number of Formula Presented-folds of inflation, Formula Presented, the magnitude of the inflaton coupling to matter, Formula Presented, and the reheating temperature, Formula Presented, which we evaluate in attractor models of inflation as formulated in no-scale supergravity. The 68% C.L. region of Formula Presented favors large values of Formula Presented, and Formula Presented that are constrained by the production of gravitinos and supersymmetric dark matter.

Original languageEnglish (US)
Article number043504
JournalPhysical Review D
Volume105
Issue number4
DOIs
StatePublished - Feb 15 2022

Bibliographical note

Funding Information:
We thank Marco Drewes, Mathias Pierre, Douglas Scott, and Matthieu Tristram for helpful discussions. The work of J. E. was supported partly by the United Kingdom STFC Grant No. ST/T000759/1 and partly by the Estonian Research Council via a Mobilitas Pluss grant. J. E., M. A. G. G., and S. V. acknowledge the hospitality of the Institut Pascal at the Université Paris-Saclay during the 2021 Paris-Saclay Astroparticle Symposium, with the support of the P2IO Laboratory of Excellence program “Investissements d’avenir” ANR-11-IDEX-0003-01 Paris-Saclay and ANR-10-LABX-0038, and the P2I axis of the Graduate School Physics of the Université Paris-Saclay, as well as Laboratoire de Physique des 2 infinis Irène Joliot-Curie (IJCLab), Commissariat à l’Energie Atomique (CEA), Institut de Physique Théorique (IPhT), Astroparticle Physics European Consortium (APPEC), and European Consortium for Astroparticle Theory (EuCAPT) ANR-11-IDEX-0003-01 Paris-Saclay and ANR-10-LABX-0038. M. A. G. G. was also supported by the IN2P3 master project UCMN. The work of D. V. N. was supported partly by DOE Grant No. DE-FG02-13ER42020 and partly by the Alexander S. Onassis Public Benefit Foundation. The work of K. A. O. was supported in part by DOE Grant No. DE-SC0011842 at the University of Minnesota.

Funding Information:
We thank Marco Drewes, Mathias Pierre, Douglas Scott, and Matthieu Tristram for helpful discussions. The work of J. E. was supported partly by the United Kingdom STFC Grant No. ST/T000759/1 and partly by the Estonian Research Council via a Mobilitas Pluss grant. J. E., M. A. G. G., and S. V. acknowledge the hospitality of the Institut Pascal at the Université Paris-Saclay during the 2021 Paris-Saclay Astroparticle Symposium, with the support of the P2IO Laboratory of Excellence program “Investissements d’avenir” ANR-11-IDEX-0003-01 Paris-Saclay and ANR-10-LABX-0038, and the P2I axis of the Graduate School Physics of the Université Paris-Saclay, as well as Laboratoire de Physique des 2 infinis Irène Joliot-Curie (IJCLab), Commissariat à l’Energie Atomique (CEA), Institut de Physique Théorique (IPhT), Astroparticle Physics European Consortium (APPEC), and European Consortium for Astroparticle Theory (EuCAPT) ANR-11-IDEX-0003-01 Paris-Saclay and ANR-10-LABX-0038. M. A. G. G. was also supported by the IN2P3 master project UCMN. The work of D. V. N. was supported partly by DOE Grant No. DE-FG02-13ER42020 and partly by the Alexander S. Onassis Public Benefit Foundation. The work of K. A. O. was supported in part by DOE Grant No. DE-SC0011842 at the University of Minnesota.

Publisher Copyright:
Published by the American Physical Society

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