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CERN Accelerating science

CERN Document Server 2,004 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 0.94 δευτερόλεπτα. 
1.
Aspects of Quadratic Gravity / Alvarez-Gaume, Luis (CERN) ; Kehagias, Alex (Natl. Tech. U., Athens ; Geneva U., CAP) ; Kounnas, Costas (Ecole Normale Superieure) ; Lust, Dieter (CERN ; Munich, Max Planck Inst. ; Munich U., ASC) ; Riotto, Antonio (Geneva U., CAP)
We discuss quadratic gravity where terms quadratic in the curvature tensor are included in the action. After reviewing the corresponding field equations, we analyze in detail the physical propagating modes in some specific backgrounds. [...]
arXiv:1505.07657; LMU-ASC 26-15; MPP-2015-95; CERN-PH-TH-2015-099.- Geneva : CERN, 2016 - 24 p. - Published in : Fortsch. Phys.: 64 (2016) , no. 2-3, pp. 176-189 Fulltext: PDF; External link: Preprint
2.
Black Hole Solutions in $R^2$ Gravity / Kehagias, Alex (Geneva U., CAP ; Geneva U., Dept. Theor. Phys. ; Natl. Tech. U., Athens) ; Kounnas, Costas (Ecole Normale Superieure) ; Lüst, Dieter (CERN ; Munich U., ASC ; Munich, Max Planck Inst.) ; Riotto, Antonio (Geneva U., Dept. Theor. Phys. ; Geneva U., CAP)
We find static spherically symmetric solutions of scale invariant $R^2$ gravity. The latter has been shown to be equivalent to General Relativity with a positive cosmological constant and a scalar mode. [...]
arXiv:1502.04192; LMU-ASC-06-15; MPP-2015-21; CERN-PH-TH-2015-026; LPTENS-15-01; LMU-ASC 06-15; MPP-2015-21; CERN-PH-TH-2015-026; LPTENS-15-01.- Geneva : CERN, 2015-05-27 - 20 p. - Published in : JHEP 05 (2015) 143 Article from SCOAP3: PDF; Fulltext: PDF; Springer Open Access article: PDF; External link: Preprint
3.
On the degrees of freedom of R$^{2}$ gravity in flat spacetime / Hell, Anamaria (Tokyo U., IPMU) ; Lust, Dieter (Munich U. ; Munich, Max Planck Inst.) ; Zoupanos, George (Munich, Max Planck Inst. ; Natl. Tech. U., Athens ; CERN ; Heidelberg U.)
We study the degrees of freedom of $R^2$ gravity in flat spacetime with two approaches. By rewriting the theory a la Stueckelberg, and implementing Lorentz-like gauges to the metric perturbations, we confirm that the pure theory propagates one scalar degree of freedom, while the full theory contains two tensor modes in addition. [...]
arXiv:2311.08216; LMU-ASC 34/23; MPP-2023-256.- 2024-02-07 - 36 p. - Published in : JHEP 2402 (2024) 039 Fulltext: 2311.08216 - PDF; Publication - PDF;
4.
Constraining graviton non-Gaussianity through the CMB bispectra / De Luca, Valerio (Geneva U., CAP) ; Franciolini, Gabriele (Geneva U., CAP) ; Kehagias, Alex (Natl. Tech. U., Athens) ; Riotto, Antonio (Geneva U., CAP ; CERN) ; Shiraishi, Maresuke (Kagawa U.)
Tensor non-Gaussianities are a key ingredient to test the symmetries and the presence of higher spin fields during the inflationary epoch. Indeed, the shape of the three point correlator of the graviton is totally fixed by the symmetries of the de Sitter stage and, in the case of parity conservation, gets contributions only from the ordinary gravity action plus a higher derivative term called the (Weyl)$^3$ action. [...]
arXiv:1908.00366.- 2019-09-25 - 8 p. - Published in : Phys. Rev. D 100 (2019) 063535 Fulltext: PDF; Fulltext from publisher: PDF;
5. Recommendations of the Finance Committee to Council as to the Financing of the 1965 Supplementary Programme
Recommandations du Comité des Finances au Conseil au sujet du financement du programme supplémentaire pour 1965
CERN/0572
28th Session of Council ; 1964
English: PDF
French: PDF
6. Expenditure in Excess of Provisions
Dépassements de crédits
CERN/FC/0726/Add.
64th Meeting of Finance Committee ; 1964
English: PDF
French: PDF
7. List of Participants
Liste des participants
CERN/FC/0740
64th Meeting of Finance Committee ; 1964
English: PDF
French: PDF
8. Financing of 1965 Supplementary Programme
CERN/FC/0742
64th Meeting of Finance Committee ; 1964
English: PDF
9. Draft Agreements Concerning the Site Leased to CERN on French Territory - Drafts Letter of Interpretation and Acknowledgement of Receipt
Projets d'accords relatifs au terrain sis en territoire français et donne à bail au CERN - Projets lettre d'interprétation et accuse de réception
CERN/0529/Rev./Add.
28th Session of Council ; 1964
English: PDF
French: PDF
10. Draft Agenda
Ordre du jour provisoire
CERN/FC/0738/Rev.
64th Meeting of Finance Committee ; 1964
English: PDF
French: PDF

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