Lightish but clumpy: scalar dark matter from inflationary fluctuations
It has recently been shown [1] that light vector particles produced from inflationary fluctuations can give rise to the dark matter in the Universe. A similar mechanism has been discussed in [2] for a non-minimally coupled scalar enjoying a Higgs portal interaction. We discuss in detail how such a g...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Dokumenttyp: | Article (Journal) Kapitel/Artikel |
| Sprache: | Englisch |
| Veröffentlicht: |
19 Oct 2018
|
| In: |
Arxiv
|
| Online-Zugang: | Verlag, Volltext: http://arxiv.org/abs/1807.09785
|
| Verfasserangaben: | Gonzalo Alonso-Álvarez and Joerg Jaeckel |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1585125555 | ||
| 003 | DE-627 | ||
| 005 | 20220815080844.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 181212s2018 xx |||||o 00| ||eng c | ||
| 035 | |a (DE-627)1585125555 | ||
| 035 | |a (DE-576)515125555 | ||
| 035 | |a (DE-599)BSZ515125555 | ||
| 035 | |a (OCoLC)1341027102 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Alonso Álvarez, Gonzalo |d 1992- |e VerfasserIn |0 (DE-588)1154442233 |0 (DE-627)1015732445 |0 (DE-576)500991693 |4 aut | |
| 245 | 1 | 0 | |a Lightish but clumpy |b scalar dark matter from inflationary fluctuations |c Gonzalo Alonso-Álvarez and Joerg Jaeckel |
| 264 | 1 | |c 19 Oct 2018 | |
| 300 | |a 43 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 03.12.2020 | ||
| 520 | |a It has recently been shown [1] that light vector particles produced from inflationary fluctuations can give rise to the dark matter in the Universe. A similar mechanism has been discussed in [2] for a non-minimally coupled scalar enjoying a Higgs portal interaction. We discuss in detail how such a generation of dark matter works in a minimal setup of a massive scalar non-minimally coupled to gravity. For suitable values of the non-minimal coupling any initial constant value of the field is suppressed during inflation. At the same time, the quantum fluctuations acquired during inflation give rise to a peaked energy density power spectrum. Isocurvature constraints can be avoided since nearly all of the energy is concentrated in fluctuations too small to be observed in the CMB. For masses $\gtrsim {\rm eV}$ and sufficiently high inflation scale the energy contained in these fluctuations is sufficient to account for the cold dark matter of the Universe. At small scales $\ell_{\rm today}\sim 10^{4}\,{\rm km}\sqrt{m/{\rm eV}}\sim 10^{-4}\,{\rm AU}\sqrt{m/{\rm eV}}$ fluctuations are large and we therefore expect a rather clumpy nature of this form of dark matter. | ||
| 650 | 4 | |a High Energy Physics - Phenomenology | |
| 650 | 4 | |a Astrophysics - Cosmology and Nongalactic Astrophysics | |
| 700 | 1 | |a Jaeckel, Joerg |e VerfasserIn |0 (DE-588)124999050 |0 (DE-627)516179233 |0 (DE-576)294611916 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Arxiv |d Ithaca, NY : Cornell University, 1991 |g (2018) Artikel-Nummer 1807.09785, 43 Seiten |h Online-Ressource |w (DE-627)509006531 |w (DE-600)2225896-6 |w (DE-576)28130436X |7 nnas |a Lightish but clumpy scalar dark matter from inflationary fluctuations |
| 773 | 1 | 8 | |g year:2018 |g extent:43 |a Lightish but clumpy scalar dark matter from inflationary fluctuations |
| 856 | 4 | 0 | |u http://arxiv.org/abs/1807.09785 |x Verlag |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20181212 | ||
| 993 | |a Article | ||
| 998 | |g 124999050 |a Jaeckel, Joerg |m 124999050:Jaeckel, Joerg |d 130000 |d 130300 |e 130000PJ124999050 |e 130300PJ124999050 |k 0/130000/ |k 1/130000/130300/ |p 2 |y j | ||
| 998 | |g 1154442233 |a Alonso Álvarez, Gonzalo |m 1154442233:Alonso Álvarez, Gonzalo |d 130000 |d 130300 |e 130000PA1154442233 |e 130300PA1154442233 |k 0/130000/ |k 1/130000/130300/ |p 1 |x j | ||
| 999 | |a KXP-PPN1585125555 |e 3037781548 | ||
| BIB | |a Y | ||
| JSO | |a {"relHost":[{"pubHistory":["1991 -"],"part":{"year":"2018","extent":"43","text":"(2018) Artikel-Nummer 1807.09785, 43 Seiten"},"titleAlt":[{"title":"Arxiv.org"},{"title":"Arxiv.org e-print archive"},{"title":"Arxiv e-print archive"},{"title":"De.arxiv.org"}],"note":["Gesehen am 28.05.2024"],"disp":"Lightish but clumpy scalar dark matter from inflationary fluctuationsArxiv","type":{"bibl":"edited-book","media":"Online-Ressource"},"language":["eng"],"recId":"509006531","title":[{"title":"Arxiv","title_sort":"Arxiv"}],"physDesc":[{"extent":"Online-Ressource"}],"origin":[{"publisherPlace":"Ithaca, NY ; [Erscheinungsort nicht ermittelbar]","dateIssuedDisp":"1991-","publisher":"Cornell University ; Arxiv.org","dateIssuedKey":"1991"}],"id":{"eki":["509006531"],"zdb":["2225896-6"]}}],"physDesc":[{"extent":"43 S."}],"name":{"displayForm":["Gonzalo Alonso-Álvarez and Joerg Jaeckel"]},"id":{"eki":["1585125555"]},"origin":[{"dateIssuedKey":"2018","dateIssuedDisp":"19 Oct 2018"}],"language":["eng"],"recId":"1585125555","note":["Gesehen am 03.12.2020"],"type":{"media":"Online-Ressource","bibl":"chapter"},"person":[{"family":"Alonso Álvarez","given":"Gonzalo","display":"Alonso Álvarez, Gonzalo","roleDisplay":"VerfasserIn","role":"aut"},{"role":"aut","roleDisplay":"VerfasserIn","display":"Jaeckel, Joerg","given":"Joerg","family":"Jaeckel"}],"title":[{"subtitle":"scalar dark matter from inflationary fluctuations","title":"Lightish but clumpy","title_sort":"Lightish but clumpy"}]} | ||
| SRT | |a ALONSOALVALIGHTISHBU1920 | ||