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Sarunas Verner

As seen in: MDPI, Physical Review B
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Articles

Inflaton Decay in No-Scale Supergravity and Starobinsky-like Models

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By Yohei Ema, Wenqi Ke, Keith A. Olive, Sarunas Verner
| MDPI
All articles published by MDPI are made immediately available worldwide under an open access license. No special permission is required to reuse all or part of the article published by MDPI, including figures and tables. For articles published under an open access Creative Common CC BY license, any part of the article may be reused without permission provided that the original article is clearly cited. For more information, please refer to https://www.mdpi.com/openaccess.
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Supergravity Scattering Amplitudes

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By Emilian Dudas, Tony Gherghetta, Keith A. Olive, Sarunas Verner
| hal.science
Supergravity Scattering Amplitudes Mots clés superfield: chiral potential: scalar supergravity scattering amplitude Riemann background field nonminimal kinetic Origine : Fichiers produits par l'(les) auteur(s)
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New window into gravitationally produced scalar dark matter

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By Instituto de Física, Mathias Pierre, Deutsches Elektronen-Synchrotron DESY, Sarunas Verner
| Physical Review B
Conventional scenarios of purely gravitationally produced dark matter with masses below the Hubble parameter at the end of inflation are in tension with cosmic microwave background (CMB) constraints on the isocurvature power spectrum. We explore a more general scenario with a nonminimal coupling between the scalar dark matter field and gravity, which allows for significantly lighter scalar dark matter masses compared to minimal coupling predictions.
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