Artículo
Creminelli, P.; Dubovsky, S.; López Nacir, D.; Simonović, M.; Trevisan, G.; Villadoro, G.; Zaldarriaga, M. "Implications of the scalar tilt for the tensor-to-scalar ratio" (2015) Physical Review D - Particles, Fields, Gravitation and Cosmology. 92(12)
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Abstract:
We investigate the possible implications of the measured value of the scalar tilt ns for the tensor-to-scalar ratio r in slow-roll, single-field inflationary models. The measured value of the tilt satisfies ns-1∼1/N∗, where N∗∼60 is the number of e-folds for observationally relevant scales. If this is not a coincidence and the scaling holds for different values of N, it strongly suggests that either r is as big as 10-1 (a possibility in tension with the recent data), or smaller than 10-2 and exponentially dependent on ns. A large region of the (ns,r) plane is not compatible with this scaling. © 2015 American Physical Society.
Registro:
| Documento: | Artículo |
| Título: | Implications of the scalar tilt for the tensor-to-scalar ratio |
| Autor: | Creminelli, P.; Dubovsky, S.; López Nacir, D.; Simonović, M.; Trevisan, G.; Villadoro, G.; Zaldarriaga, M. |
| Filiación: | Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, Trieste, 34151, Italy Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, NY 10003, United States Departamento de Física and IFIBA, FCEyN UBA, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón I, Buenos Aires, 1428, Argentina Institute for Advanced Study, Princeton, NJ 08540, United States SISSA, via Bonomea 265, Trieste, 34136, Italy Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Trieste, 34136, Italy |
| Año: | 2015 |
| Volumen: | 92 |
| Número: | 12 |
| DOI: | http://dx.doi.org/10.1103/PhysRevD.92.123528 |
| Título revista: | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Título revista abreviado: | Phys Rev D Part Fields Gravit Cosmol |
| ISSN: | 15507998 |
| CODEN: | PRVDA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v92_n12_p_Creminelli |
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Citas:
---------- APA ----------
Creminelli, P., Dubovsky, S., López Nacir, D., Simonović, M., Trevisan, G., Villadoro, G. & Zaldarriaga, M. (2015) . Implications of the scalar tilt for the tensor-to-scalar ratio. Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(12).http://dx.doi.org/10.1103/PhysRevD.92.123528
---------- CHICAGO ----------
Creminelli, P., Dubovsky, S., López Nacir, D., Simonović, M., Trevisan, G., Villadoro, G., et al. "Implications of the scalar tilt for the tensor-to-scalar ratio" . Physical Review D - Particles, Fields, Gravitation and Cosmology 92, no. 12 (2015).http://dx.doi.org/10.1103/PhysRevD.92.123528
---------- MLA ----------
Creminelli, P., Dubovsky, S., López Nacir, D., Simonović, M., Trevisan, G., Villadoro, G., et al. "Implications of the scalar tilt for the tensor-to-scalar ratio" . Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 92, no. 12, 2015.http://dx.doi.org/10.1103/PhysRevD.92.123528
---------- VANCOUVER ----------
Creminelli, P., Dubovsky, S., López Nacir, D., Simonović, M., Trevisan, G., Villadoro, G., et al. Implications of the scalar tilt for the tensor-to-scalar ratio. Phys Rev D Part Fields Gravit Cosmol. 2015;92(12).http://dx.doi.org/10.1103/PhysRevD.92.123528
