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CERN Document Server 2,049 записей найдено  1 - 10следующийконец  перейти к записи: Поиск длился 0.43 секунд. 
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Bare-bones de Sitter vacua / Bena, Iosif (IPhT, Saclay) ; Dudas, Emilian (Ecole Polytechnique, CPHT ; CERN) ; Graña, Mariana (IPhT, Saclay) ; Lo Monaco, Gabriele (IPhT, Saclay) ; Toulikas, Dimitrios (IPhT, Saclay)
We compute the supersymmetry-breaking three-form fluxes generated by the addition of anti-D3 branes at the tip of a Klebanov-Strassler throat. These fluxes give rise to nontrivial terms in the superpotential when the throat is embedded in a flux compactification. [...]
arXiv:2202.02327; CPHT-RR008.022022; CERN-TH-2022-013.- 2023-07-15 - 5 p. - Published in : Phys. Rev. D 108 (2023) L021901 Fulltext: Publication - PDF; 2202.02327 - PDF;
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The Schwarzschild-Tangherlini metric from scattering amplitudes in various dimensions / Mougiakakos, Stavros (IPhT, Saclay) ; Vanhove, Pierre (IPhT, Saclay ; Higher Sch. of Economics, Moscow ; CERN)
We derive the static Schwarzschild-Tangherlini metric by extracting the classical contributions from the multi-loop vertex functions of a graviton emitted from a massive scalar field. At each loop orders the classical contribution is proportional to a unique master integral given by the massless sunset integral. [...]
arXiv:2010.08882; IPhT-t20/053; CERN-TH-2020-168.- 2021-01-05 - 31 p. - Published in : Phys. Rev. D 103 (2021) 026001 Article from SCOAP3: PDF; Fulltext: PDF;
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Finite Feynman Integrals / Gambuti, Giulio (Oxford U., Theor. Phys.) ; Kosower, David A. (IPhT, Saclay ; CERN) ; Novichkov, Pavel P. (IPhT, Saclay) ; Tancredi, Lorenzo (Munich, Tech. U.)
We describe an algorithm to organize Feynman integrals in terms of their infrared properties. [...]
arXiv:2311.16907 ; TUM-HEP-1483/23 ; OUTP-23-13P ; CERN-TH-2023-218. - 35 p.
Fulltext
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Sliding Naturalness: New Solution to the Strong-$CP$ and Electroweak-Hierarchy Problems / Tito D'Agnolo, Raffaele (IPhT, Saclay) ; Teresi, Daniele (CERN)
We present a novel framework to solve simultaneously the electroweak hierarchy problem and the strong-CP problem. A small but finite Higgs vacuum expectation value and a small $\theta$-angle are selected after the QCD phase transition, without relying on the Peccei-Quinn mechanism or other traditional solutions. [...]
arXiv:2106.04591; CERN-TH-2021-055.- 2022-01-12 - 6 p. - Published in : Phys. Rev. Lett. 128 (2022) 021803 Fulltext: 2106.04591 - PDF; PhysRevLett.128.021803 - PDF;
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One-loop impact factor for the emission of two gluons / Canay, Marc (Zurich, ETH ; IPhT, Saclay) ; Duca, Vittorio Del (Zurich, ETH ; CERN ; INFN, Pisa)
We consider one-loop five-point QCD amplitudes in next-to-multi-Regge kinematics, and evaluate the one-loop impact factor for the emission of two gluons. [...]
arXiv:2103.16593. - 33 p.
Fulltext
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Beyond Positivity Bounds and the Fate of Massive Gravity / Bellazzini, Brando (IPhT, Saclay ; Padua U.) ; Riva, Francesco (CERN) ; Serra, Javi (CERN) ; Sgarlata, Francesco (INFN, Trieste ; SISSA, Trieste)
We constrain effective field theories by going beyond the familiar positivity bounds that follow from unitarity, analyticity, and crossing symmetry of the scattering amplitudes. As interesting examples, we discuss the implications of the bounds for the Galileon and ghost-free massive gravity. [...]
arXiv:1710.02539; CERN-TH-2017-201.- 2018-04-18 - 7 p. - Published in : Phys. Rev. Lett. 120 (2018) 161101 Article from SCOAP3: PDF; Fulltext: PDF; Fulltext from Publisher: PDF;
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Hydrodynamic attractors, initial state energy and particle production in relativistic nuclear collisions / Giacalone, Giuliano (IPhT, Saclay) ; Mazeliauskas, Aleksas (Heidelberg U. ; CERN) ; Schlichting, Sören (Bielefeld U.)
We exploit the concept of hydrodynamic attractors to establish a general relation between the initial state energy and the produced particle multiplicities in high-energy nuclear collisions. When combined with an ab initio model of energy deposition, the entropy production during the pre-equilibrium phase naturally explains the universal centrality dependence of the measured charged particle yields in nucleus-nucleus collisions. [...]
arXiv:1908.02866; INT-PUB-19-036.- 2019-12-31 - 7 p. - Published in : Phys. Rev. Lett. 123 (2019) 262301 Article from SCOAP3: PDF; Fulltext: PDF;
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Gravitational waves from binary black holes in a self-interacting scalar dark matter cloud / Boudon, Alexis (IPhT, Saclay) ; Brax, Philippe (IPhT, Saclay ; CERN) ; Valageas, Patrick (IPhT, Saclay) ; Wong, Leong Khim (IPhT, Saclay)
We investigate the imprints of accretion and dynamical friction on the gravitational-wave signals emitted by binary black holes embedded in a scalar dark matter cloud. As a key feature in this work, we focus on scalar fields with a repulsive self-interaction that balances against the self-gravity of the cloud. [...]
arXiv:2305.18540.- 2024-02-05 - 20 p. - Published in : Phys. Rev. D 109 (2024) 043504 Fulltext: PDF;
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Generalized hypergeometric functions and intersection theory for Feynman integrals / Abreu, Samuel (Louvain U., CP3) ; Britto, Ruth (Hamilton Math. Inst., Dublin ; Trinity Coll., Dublin ; IPhT, Saclay) ; Duhr, Claude (CERN) ; Gardi, Einan (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Matthew, James (U. Edinburgh, Higgs Ctr. Theor. Phys.)
Feynman integrals that have been evaluated in dimensional regularization can be written in terms of generalized hypergeometric functions. It is well known that properties of these functions are revealed in the framework of intersection theory. [...]
arXiv:1912.03205; CERN-TH-2019-219; CP3-19-58.- 2019 - 10 p. - Published in : PoS RADCOR2019 (2019) 067 Fulltext: PoS(RADCOR2019)067 - PDF; 1912.03205 - PDF;
In : 14th International Symposium on Radiative Corrections : Application of Quantum Field Theory to Phenomenology, Avignon, France, 8 - 13 Sep 2019, pp.067
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Diagrammatic Coaction of Two-Loop Feynman Integrals / Abreu, Samuel (Louvain U., CP3) ; Britto, Ruth (Hamilton Math. Inst., Dublin ; Trinity Coll., Dublin ; IPhT, Saclay) ; Duhr, Claude (CERN) ; Gardi, Einan (U. Edinburgh, Higgs Ctr. Theor. Phys. ; Edinburgh U., Inst. Astron.) ; Matthew, James (U. Edinburgh, Higgs Ctr. Theor. Phys.)
It is known that one-loop Feynman integrals possess an algebraic structure encoding some of their analytic properties called the coaction, which can be written in terms of Feynman integrals and their cuts. This diagrammatic coaction, and the coaction on other classes of integrals such as hypergeometric functions, may be expressed using suitable bases of differential forms and integration contours. [...]
arXiv:1912.06561; CERN-TH-2019-218; CP3-19-59.- 2019 - 10 p. - Published in : PoS RADCOR2019 (2019) 065 Fulltext: PoS(RADCOR2019)065 - PDF; 1912.06561 - PDF;
In : 14th International Symposium on Radiative Corrections : Application of Quantum Field Theory to Phenomenology, Avignon, France, 8 - 13 Sep 2019, pp.065
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