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Statements

Subject Item
n2:RIV%2F68407700%3A21670%2F14%3A00218783%21RIV15-MSM-21670___
rdf:type
n14:Vysledek skos:Concept
rdfs:seeAlso
http://www.sciencedirect.com/science/article/pii/S0370269314003293
dcterms:description
We investigate a novel scenario of cosmological inflation in a gauged <i>B</i>-<i>L</i> extended minimal supersymmetric Standard Model with R-symmetry. We use a noncanonical Kähler potential and a superpotential, both preserving the R-symmetry to construct a model of slow-roll inflation. The model is controlled by two real parameters: the nonminimal coupling ξ that originates from the Kähler potential, and the breaking scale <i>v</i> of the U(1)<sub><i>B</i>-<i>L</i></sub> symmetry. We compute the spectrum of the cosmological microwave background radiation and show that the prediction of the model fits well the recent Planck satellite observation for a wide range of the parameter space. We also find that the typical reheating temperature of the model is low enough to avoid the gravitino problem but nevertheless allows sufficient production of the baryon asymmetry if we take into account the effect of resonance enhancement. The model is free from cosmic strings that impose stringent constraints on generic U(1)<sub><i>B</i>-<i>L</i></sub> based scenarios, as in our scenario the U(1)<sub><i>B</i>-<i>L</i></sub> symmetry is broken from the onset. We investigate a novel scenario of cosmological inflation in a gauged <i>B</i>-<i>L</i> extended minimal supersymmetric Standard Model with R-symmetry. We use a noncanonical Kähler potential and a superpotential, both preserving the R-symmetry to construct a model of slow-roll inflation. The model is controlled by two real parameters: the nonminimal coupling ξ that originates from the Kähler potential, and the breaking scale <i>v</i> of the U(1)<sub><i>B</i>-<i>L</i></sub> symmetry. We compute the spectrum of the cosmological microwave background radiation and show that the prediction of the model fits well the recent Planck satellite observation for a wide range of the parameter space. We also find that the typical reheating temperature of the model is low enough to avoid the gravitino problem but nevertheless allows sufficient production of the baryon asymmetry if we take into account the effect of resonance enhancement. The model is free from cosmic strings that impose stringent constraints on generic U(1)<sub><i>B</i>-<i>L</i></sub> based scenarios, as in our scenario the U(1)<sub><i>B</i>-<i>L</i></sub> symmetry is broken from the onset.
dcterms:title
Supersymmetric <i>B</i>-<i>L</i> inflation near the conformal coupling Supersymmetric <i>B</i>-<i>L</i> inflation near the conformal coupling
skos:prefLabel
Supersymmetric <i>B</i>-<i>L</i> inflation near the conformal coupling Supersymmetric <i>B</i>-<i>L</i> inflation near the conformal coupling
skos:notation
RIV/68407700:21670/14:00218783!RIV15-MSM-21670___
n3:aktivita
n4:Z n4:P
n3:aktivity
P(LG13009), P(LH11106), Z(MSM6840770029)
n3:cisloPeriodika
June
n3:dodaniDat
n5:2015
n3:domaciTvurceVysledku
Arai, Masato
n3:druhVysledku
n6:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
48571
n3:idVysledku
RIV/68407700:21670/14:00218783
n3:jazykVysledku
n13:eng
n3:klicovaSlova
supergravity; right-handed neutrinos; (cosmological) inflation; cosmic microwave background; R-symmetry; baryon asymmetry
n3:klicoveSlovo
n11:%28cosmological%29%20inflation n11:baryon%20asymmetry n11:right-handed%20neutrinos n11:cosmic%20microwave%20background n11:supergravity n11:R-symmetry
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[E3DEE347B15E]
n3:nazevZdroje
Physics Letters B
n3:obor
n8:BE
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
3
n3:projekt
n12:LG13009 n12:LH11106
n3:rokUplatneniVysledku
n5:2014
n3:svazekPeriodika
734
n3:tvurceVysledku
Kawai, S. Okada, N. Arai, Masato
n3:wos
000338943900021
n3:zamer
n7:MSM6840770029
s:issn
0370-2693
s:numberOfPages
7
n16:doi
10.1016/j.physletb.2014.05.027
n17:organizacniJednotka
21670