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CERN Document Server 377 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 0.68 δευτερόλεπτα. 
1.
Building Models of Inflation in No-Scale Supergravity / Ellis, John (King's Coll. London ; CERN ; NICPB, Tallinn) ; Garcia, Marcos A.G. (Madrid, IFT) ; Nagata, Natsumi (Tokyo U.) ; Nanopoulos Dimitri V. (TAMU, College Station ; HARC, Woodlands ; Athens Academy) ; Olive, Keith A. (Minnesota U.) ; Verner, Sarunas (Minnesota U.)
After reviewing the motivations for cosmological inflation formulated in the formalism of supersymmetry, we argue that the appropriate framework is that of no-scale supergravity. We then show how to construct within this framework inflationary models whose predictions for the tilt in the spectrum of scalar perturbations, $n_s$, and the ratio, $r$, of tensor and scalar perturbations coincide with those of the $R + R^2$ model of inflation proposed by Starobinsky. [...]
arXiv:2009.01709; KCL-PH-TH/2020-44; CERN-TH-2020-136; ACT-6-20; MI-TH-2024, UMN-TH-3926/20; MI-TH-2024, UMN-TH-3926/20; FTPI-MINN-20/29; IFT-UAM/CSIC-20-126.- 2020-10-22 - 85 p. - Published in : Int. J. Mod. Phys. D 29 (2020) 2030011 Fulltext: PDF;
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2.
No-scale supergravity inflation: A bridge between string theory and particle physics? / Ellis, John (King's Coll. London ; CERN)
The plethora of recent and forthcoming data on the cosmic microwave background (CMB) data are stimulating a new wave of inflationary model-building. Naturalness suggests that the appropriate framework for models of inflation is supersymmetry. [...]
2017 - 13 p. - Published in : 10.1142/9789813226609_0004 Fulltext: PDF;
In : 14th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories, Rome, Italy, 12 - 18 Jul 2015, pp.51-63
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3.
No-scale supergravity inflation: A bridge between string theory and particle physics? / Ellis, John (King's Coll. London ; CERN)
The plethora of recent and forthcoming data on the cosmic microwave background (CMB) data are stimulating a new wave of inflationary model-building. Naturalness suggests that the appropriate framework for models of inflation is supersymmetry. [...]
2016 - 13 p. - Published in : Int. J. Mod. Phys. D 25 (2016) 1630027
Αναλυτική εγγραφή
4.
Supergravity with broken Lorentz invariance / Marakulin, A O (CERN ; Helsinki Inst. of Phys.) ; Sibiryakov, S M (CERN ; Helsinki Inst. of Phys.)
Incompatibility of the principles of quantum field theory with general relativity is one of the most important problems in modern theoretical physics. A potential way out of this situation consists in restricting the domain of validity of some basic postulates of general relativity and abandoning them at high energy scales. [...]
2016 - 3 p. - Published in : 10.1142/9789814759816_0071
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5.
Higher Curvature Supergravity and Cosmology / Ferrara, Sergio (CERN ; INFN, Naples ; Naples U.) ; Sagnotti, Augusto (INFN, Pisa ; Pisa, Scuola Normale Superiore)
In this contribution we describe dual higher-derivative formulations of some cosmological models based on supergravity. Work in this direction started with the Starobinsky model, whose supersymmetric extension was derived in the late 80's and was recently revived in view of new CMB data. [...]
2016 - 5 p. - Published in : Fortsch. Phys. 64 (2016) 371-375
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6.
Corfu2017: 17th Hellenic School and Workshops on Elementary Particle Physics and Gravity - CORFU2017   2 - 28 Sep 2017  - Corfu, Attiki, Greece  .-
2017
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7.
A string realisation of $\varOmega$-deformed Abelian $\mathcal{N}=2^*$ theory / Angelantonj, Carlo (INFN, Turin ; Turin U.) ; Antoniadis, Ignatios (Paris, LPTHE ; UPMC, Paris (main) ; U. Bern, AEC) ; Samsonyan, Marine (CERN)
The $\mathscr{N}=2^*$ supersymmetric gauge theory is a massive deformation of $\mathscr{N}=4$, in which the adjoint hypermultiplet gets a mass. We present a D-brane realisation of the (non-)Abelian $\mathscr{N}=2^*$ theory, and compute suitable topological amplitudes, which are expressed as a double series expansion. [...]
CERN-TH-2017-038; arXiv:1702.04998.- 2017-10 - 22 p. - Published in : Nucl. Phys. B 923 (2017) 32-53 Article from SCOAP3: PDF; Preprint: PDF;
Αναλυτική εγγραφή
8.
Supergravity at 40: Reflections and Perspectives / Ferrara, S. (CERN ; Frascati ; UCLA) ; Sagnotti, A. (Pisa, Scuola Normale Superiore ; INFN, Pisa)
The fortieth anniversary of the original construction of Supergravity provides an opportunity to combine some reminiscences of its early days with an assessment of its impact on the quest for a quantum theory of gravity..
arXiv:1702.00743; CERN-TH-2017-005.- 2017-05-26 - 17 p. - Published in : J. Phys.: Conf. Ser.
- Published in : J. Phys.: Conf. Ser. Fulltext: fulltext - PDF; arXiv:1702.00743 - PDF; 1702.00743 - PDF;
In : 5th Symposium on Prospects in the Physics of Discrete Symmetries, Warsaw, Poland, 28 Nov - 3 Dec 2016, pp.279-295
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9.
No-Scale SU(5) Super-GUTs / Ellis, John (King's Coll. London ; CERN) ; Evans, Jason L. (Korea Inst. Advanced Study, Seoul) ; Nagata, Natsumi (Tokyo U.) ; Nanopoulos, Dimitri V. (Texas A-M ; HARC, Woodlands ; Athens Academy) ; Olive, Keith A. (Minnesota U.)
We reconsider the minimal SU(5) Grand Unified Theory (GUT) in the context of no-scale supergravity, assuming that the soft supersymmetry-breaking parameters satisfy universality conditions at some input scale M_in above the GUT scale M_GUT. When setting up such a no-scale super-GUT model, special attention must be paid to avoiding the Scylla of rapid proton decay and the Charybdis of an excessive density of cold dark matter, while also having an acceptable mass for the Higgs boson. [...]
arXiv:1702.00379; KCL-PH-TH-2017-05; CERN-TH-2017-010; KIAS-P17008; UT-17-03; MI-TH-1738; UMN-TH-3618-17; FTPI-MINN-17-02; ACT-01-17.- 2017-04-12 - 24 p. - Published in : Eur. Phys. J. C 77 (2017) 232 Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF;
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10.
Supergravity and its Legacy / Ferrara, S. (CERN ; Frascati ; UCLA)
A personal recollection of events that preceded the construction of Supergravity and of some subsequent developments..
arXiv:1701.04317; CERN-TH-2017-004.- 2019 - 11 p. - Published in : 10.1142/9789811206856_0003 Fulltext: PDF;
In : 54th International School of Subnuclear Physics : The New Physics Frontiers in the LHC-2 Era, Erice, Italy, 24 Jun - 3 Jul 2016, pp.147–157
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