English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We construct an unified model of inflation and PeV dark matter with anappropriate choice of no-scale K\"ahler potential, superpotential and gaugekinetic function in terms of MSSM fields and hidden sector Polonyi field. Themodel is consistent with the CMB observations and can explain the PeV neutrinoflux observed at IceCube HESE. A Starobinsky like Higgs-sneutrino plateauinflation is obtained from the $D$-term SUGRA potential while $F$-term beingsubdominant during inflation. To get PeV dark matter, SUSY breaking at PeVscale is achieved through Polonyi field. This sets the scale for soft SUSYbreaking parameters $m_0, m_{1/2}, A_0 $ at the GUT scale in terms of theparameters of the model. The low energy particles spectrum is obtained byrunning the RGEs. We show that the $\sim$125 GeV higgs and the gauge couplingunification can be obtained in this model. The $6$ PeV bino-type dark matter isa subdominant fraction ($\sim 11\%$) of the relic density and its decay givesthe PeV scale neutrino flux observed at IceCube by appropriately choosing thecouplings of the $R$-parity violating operators. Also we find that there is adegeneracy in scalar field parameters $(\gamma, \beta)$ and coupling $\zeta$value in producing the correct amplitude of CMB power spectrum. However thevalue of parameter $\tan(\beta)=1.8$, which is tightly fixed from therequirement of PeV scale SUSY breaking, removes the degeneracy in the values ofthe scalar field parameters to provide a unique solution for inflation. In thisway it brings the explanation for dark matter, PeV neutrinos and inflationwithin the same framework.

Supergravity Model of Inflation and Explaining IceCube HESE Data via PeV Dark Matter Decay