guest ::
| Home > Publications database > Intrinsic non-Gaussianity of ultra slow-roll inflation > print |
| 001 | 646235 | ||
| 005 | 20260218211013.0 | ||
| 024 | 7 | _ | |a 10.1088/1475-7516/2026/01/012 |2 doi |
| 024 | 7 | _ | |a Ballesteros:2024pbe |2 INSPIRETeX |
| 024 | 7 | _ | |a inspire:2861159 |2 inspire |
| 024 | 7 | _ | |a 1475-7508 |2 ISSN |
| 024 | 7 | _ | |a 1475-7516 |2 ISSN |
| 024 | 7 | _ | |a arXiv:2412.14106 |2 arXiv |
| 024 | 7 | _ | |a 10.3204/PUBDB-2026-00774 |2 datacite_doi |
| 037 | _ | _ | |a PUBDB-2026-00774 |
| 041 | _ | _ | |a English |
| 082 | _ | _ | |a 530 |
| 088 | _ | _ | |a arXiv:2412.14106 |2 arXiv |
| 088 | _ | _ | |a IFT UAM-CSIC 24-183 |2 Other |
| 088 | _ | _ | |a DESY-24-205 |2 DESY |
| 100 | 1 | _ | |a Ballesteros, Guillermo |b 0 |
| 245 | _ | _ | |a Intrinsic non-Gaussianity of ultra slow-roll inflation |
| 260 | _ | _ | |a London |c 2026 |b IOP |
| 336 | 7 | _ | |a article |2 DRIVER |
| 336 | 7 | _ | |a Output Types/Journal article |2 DataCite |
| 336 | 7 | _ | |a Journal Article |b journal |m journal |0 PUB:(DE-HGF)16 |s 1771410637_1981152 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a JOURNAL_ARTICLE |2 ORCID |
| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 500 | _ | _ | |a 29 pages, 7 figures; added references and lightly extended discussion, results unaffected. Matches version to appear in JCAP |
| 520 | _ | _ | |a We study the non-Gaussian tail of the curvature fluctuation, $\zeta$, in an inflationary scenario with a transient ultra slow-roll phase that generates a localized large enhancement of the spectrum of $\zeta$. To do so, we implement a numerical procedure that provides the probability distribution of $\zeta$ order by order in perturbation theory. The non-Gaussianities of $\zeta$ can be shown to arise from its non-linear relation to the inflaton fluctuations and from the intrinsic non-Gaussianities of the latter, which stem from its self interactions. We find that intrinsic non-Gaussianities, which have often been ignored to estimate the abundance of primordial black holes in this kind of scenario, are important. The relevance of the intrinsic contribution depends on the rapidity with which the transient ultra slow-roll phase occurs, as well as on its duration. Our method cannot be used accurately when the perturbative in-in formalism fails to apply, highlighting the relevance of developing fully non-perturbative approaches to the problem. |
| 536 | _ | _ | |a 611 - Fundamental Particles and Forces (POF4-611) |0 G:(DE-HGF)POF4-611 |c POF4-611 |f POF IV |x 0 |
| 536 | _ | _ | |a DFG project G:(GEPRIS)390833306 - EXC 2121: Das Quantisierte Universum II (390833306) |0 G:(GEPRIS)390833306 |c 390833306 |x 1 |
| 536 | _ | _ | |a DFG project G:(GEPRIS)527296308 - Identifizierung des dunklen Sektors unseres Universums: Spuren früher Dynamik im späten Kosmos (527296308) |0 G:(GEPRIS)527296308 |c 527296308 |x 2 |
| 588 | _ | _ | |a Dataset connected to CrossRef, INSPIRE, Journals: bib-pubdb1.desy.de |
| 650 | _ | 7 | |a inflation |2 autogen |
| 650 | _ | 7 | |a particle physics - cosmology connection |2 autogen |
| 650 | _ | 7 | |a primordial black holes |2 autogen |
| 693 | _ | _ | |0 EXP:(DE-MLZ)NOSPEC-20140101 |5 EXP:(DE-MLZ)NOSPEC-20140101 |e No specific instrument |x 0 |
| 700 | 1 | _ | |a Gambín Egea, Jesús |0 0009-0002-5768-6712 |b 1 |
| 700 | 1 | _ | |a Konstandin, Thomas |0 P:(DE-H253)PIP1015746 |b 2 |
| 700 | 1 | _ | |a Pérez Rodríguez, Alejandro |b 3 |
| 700 | 1 | _ | |a Pierre, Mathias |0 P:(DE-H253)PIP1098681 |b 4 |e Corresponding author |u desy |
| 700 | 1 | _ | |a Rey, Julián |0 P:(DE-H253)PIP1099356 |b 5 |
| 773 | _ | _ | |a 10.1088/1475-7516/2026/01/012 |g Vol. 01, no. 01, p. 012 - |0 PERI:(DE-600)2104147-7 |n 01 |p 012 |t Journal of cosmology and astroparticle physics |v 01 |y 2026 |x 1475-7508 |
| 787 | 0 | _ | |a Konstandin, Thomas et.al. |d 2024 |i IsParent |0 PUBDB-2024-07866 |r DESY-24-205 ; arXiv:2412.14106 ; IFT UAM-CSIC 24-183 |t Intrinsic non-Gaussianity of ultra slow-roll inflation |
| 856 | 4 | _ | |u https://bib-pubdb1.desy.de/record/646235/files/Ballesteros_2026_J._Cosmol._Astropart._Phys._2026_012.pdf |
| 856 | 4 | _ | |y OpenAccess |u https://bib-pubdb1.desy.de/record/646235/files/2412.14106v3.pdf |
| 856 | 4 | _ | |x pdfa |u https://bib-pubdb1.desy.de/record/646235/files/Ballesteros_2026_J._Cosmol._Astropart._Phys._2026_012.pdf?subformat=pdfa |
| 856 | 4 | _ | |y OpenAccess |x pdfa |u https://bib-pubdb1.desy.de/record/646235/files/2412.14106v3.pdf?subformat=pdfa |
| 909 | C | O | |o oai:bib-pubdb1.desy.de:646235 |p openaire |p open_access |p VDB |p driver |p dnbdelivery |
| 910 | 1 | _ | |a Deutsches Elektronen-Synchrotron |0 I:(DE-588b)2008985-5 |k DESY |b 2 |6 P:(DE-H253)PIP1015746 |
| 910 | 1 | _ | |a Deutsches Elektronen-Synchrotron |0 I:(DE-588b)2008985-5 |k DESY |b 4 |6 P:(DE-H253)PIP1098681 |
| 910 | 1 | _ | |a Deutsches Elektronen-Synchrotron |0 I:(DE-588b)2008985-5 |k DESY |b 5 |6 P:(DE-H253)PIP1099356 |
| 913 | 1 | _ | |a DE-HGF |b Forschungsbereich Materie |l Matter and the Universe |1 G:(DE-HGF)POF4-610 |0 G:(DE-HGF)POF4-611 |3 G:(DE-HGF)POF4 |2 G:(DE-HGF)POF4-600 |4 G:(DE-HGF)POF |v Fundamental Particles and Forces |x 0 |
| 914 | 1 | _ | |y 2026 |
| 915 | _ | _ | |a DBCoverage |0 StatID:(DE-HGF)0200 |2 StatID |b SCOPUS |d 2025-01-02 |
| 915 | _ | _ | |a DBCoverage |0 StatID:(DE-HGF)0160 |2 StatID |b Essential Science Indicators |d 2025-01-02 |
| 915 | _ | _ | |a DBCoverage |0 StatID:(DE-HGF)1150 |2 StatID |b Current Contents - Physical, Chemical and Earth Sciences |d 2025-01-02 |
| 915 | _ | _ | |a IF >= 5 |0 StatID:(DE-HGF)9905 |2 StatID |b J COSMOL ASTROPART P : 2022 |d 2025-01-02 |
| 915 | _ | _ | |a WoS |0 StatID:(DE-HGF)0113 |2 StatID |b Science Citation Index Expanded |d 2025-01-02 |
| 915 | _ | _ | |a DBCoverage |0 StatID:(DE-HGF)0150 |2 StatID |b Web of Science Core Collection |d 2025-01-02 |
| 915 | _ | _ | |a OpenAccess |0 StatID:(DE-HGF)0510 |2 StatID |
| 915 | _ | _ | |a JCR |0 StatID:(DE-HGF)0100 |2 StatID |b J COSMOL ASTROPART P : 2022 |d 2025-01-02 |
| 915 | _ | _ | |a National-Konsortium |0 StatID:(DE-HGF)0430 |2 StatID |d 2025-01-02 |w ger |
| 915 | _ | _ | |a DBCoverage |0 StatID:(DE-HGF)0300 |2 StatID |b Medline |d 2025-01-02 |
| 915 | _ | _ | |a DBCoverage |0 StatID:(DE-HGF)0199 |2 StatID |b Clarivate Analytics Master Journal List |d 2025-01-02 |
| 920 | 1 | _ | |0 I:(DE-H253)T-20120731 |k T |l Theorie-Gruppe |x 0 |
| 980 | _ | _ | |a journal |
| 980 | _ | _ | |a VDB |
| 980 | _ | _ | |a UNRESTRICTED |
| 980 | _ | _ | |a I:(DE-H253)T-20120731 |
| 980 | 1 | _ | |a FullTexts |
| Library | Collection | CLSMajor | CLSMinor | Language | Author |
|---|