Broken scale invariance, α -attractors and vector impurity

Özgür Akarsu; Sibel Boran; Emre Onur Kahya; Neşe Özdemir; Mehmet Ozkan

doi:10.1140/epjc/s10052-017-4874-x

Broken scale invariance, α -attractors and vector impurity

Özgür Akarsu^*
, Sibel Boran
, Emre Onur Kahya
, Neşe Özdemir
, Mehmet Ozkan

^*Bu çalışma için yazışmadan sorumlu yazar

Fizik Mühendisliği Bölümü

Istanbul Technical University

Araştırma sonucu: Dergiye katkı › Makale › bilirkişi

1 Atıf (Scopus)

Özet

We show that if the α-attractor model is realized by the spontaneous breaking of the scale symmetry, then the stability and the dynamics of the vector field that gauges the scale symmetry can severely constrain the α-parameter as 5 / 6 < α< 1 restricting the inflationary predictions in a very tiny region in the n_s- r plane that are in great agreement with the latest Planck data. Although the different values of α do not make a tangible difference for n_s and r, they provide radically different scenarios for the post-inflationary dynamics which determines the standard BBN processes and the large scale isotropy of the universe.

Orijinal dil	İngilizce
Makale numarası	306
Dergi	European Physical Journal C
Hacim	77
Basın numarası	5
DOI'lar	https://doi.org/10.1140/epjc/s10052-017-4874-x
Yayın durumu	Yayınlandı - 1 May 2017

Bibliyografik not

Publisher Copyright:
© 2017, The Author(s).

Finansman

We thank Gokhan Alkac, Glenn Barnich and Shahin Sheikh-Jabbari for valuable comments on conserved charges, and Renata Kallosh, Andrei Linde, Diederik Roest and Marco Scalisi for valuable comments on superconformal -attractors. ÖA acknowledges the support by the Distinguished Young Scientist Award BAGEP of the Science Academy. EOK acknowledges the support by Turkish Academy of Sciences Distinguished Young Scientist Award TÜBA-GEBİP 2015. The work of MO is supported in part by the Marie Curie Cofund (No. 116C028).

Finansörler	Finansör numarası
Marie Curie Cofund	116C028
Türkiye Bilimler Akademisi
Bilim Akademisi

Belgeye Erişim

10.1140/epjc/s10052-017-4874-x

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

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AU - Akarsu, Özgür

AU - Boran, Sibel

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AU - Özdemir, Neşe

AU - Ozkan, Mehmet

PY - 2017/5/1

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VL - 77

JO - European Physical Journal C

JF - European Physical Journal C

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ER -

Broken scale invariance, α -attractors and vector impurity

Özet

Bibliyografik not

Finansman

Belgeye Erişim

Diğer Dosyalar ve Linkler

Parmak izi

Alıntı Yap