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2021-06-22
04:44
Backreaction from inhomogeneous matter fields during large-scale structure formation / Floerchinger, Stefan (U. Heidelberg, ITP) ; Tetradis, Nikolaos (Athens U.) ; Wiedemann, Urs Achim (CERN)
We study how inhomogeneities of the cosmological fluid fields backreact on the homogeneous part of energy density and how they modify the Friedmann equations. [...]
arXiv:2106.10184 ; CERN-TH-2021-095. - 11 p.

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2021-06-22
04:44
Indirect Detection of Secluded Supersymmetric Dark Matter / Barnes, Patrick (Michigan U., LCTP) ; Johnson, Zachary (Michigan U., LCTP) ; Pierce, Aaron (Michigan U., LCTP) ; Shakya, Bibhushan (DESY ; CERN)
Weak-scale secluded sector dark matter can reproduce the observed dark matter relic density with thermal freeze-out within that sector. [...]
arXiv:2106.09740 ; CERN-TH-2021-089 ; DESY 21-091 ; LCTP-21-13. - 30 p.
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2021-06-19
04:13
Cyclic spacetimes through singularity scattering maps. Plane-symmetric gravitational collisions / Floch, Bruno Le ; LeFloch, Philippe G. ; Veneziano, Gabriele
We study the plane-symmetric collision of two gravitational waves and describe the global spacetime geometry generated by this collision. [...]
arXiv:2106.09666 ; CERN-TH-2021-094. - 34 p.
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2021-06-19
04:13
The Forward-Backward Asymmetry in $B\to D^{*}\ell\nu$: One more hint for Scalar Leptoquarks? / Carvunis, Alexandre ; Crivellin, Andreas ; Guadagnoli, Diego ; Gangal, Shireen
In recent years, intriguing hints for the violation of lepton flavour universality have accumulated. [...]
arXiv:2106.09610 ; CERN-TH-2021-092 ; LAPTH-020/21 ; PSI-PR-21-12 ; ZU-TH 27/21. - 7 p.
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2021-06-18
04:32
The observed galaxy power spectrum in General Relativity / Castorina, Emanuele ; di Dio, Enea
Measurements of the clustering of galaxies in Fourier space, and at low wavenumbers, offer a window into the early Universe via the possible presence of scale dependent bias generated by Primordial Non Gaussianites. [...]
arXiv:2106.08857 ; CERN-TH-2021-087. - 44 p.
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2021-06-13
15:56
Higher-Form Symmetries and their Anomalies in M-/F-theory Duality / Cvetic, Mirjam ; Dierigl, Markus (Munich U., ASC) ; Lin, Ling (CERN) ; Zhang, Hao Y. (Pennsylvania U.)
We explore higher-form symmetries of M- and F-theory compactified on elliptic fibrations, determined by the topology of their asymptotic boundaries. [...]
arXiv:2106.07654 ; CERN-TH-2021-091 ; UPR-1311-T ; LMU-ASC 17/21. - 2021. - 35 p.
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2021-06-13
04:01
Discriminating same-mass Neutron Stars and Black Holes gravitational wave-forms / Coupechoux, J.-F. (IP2I, Lyon) ; Arbey, A. ; Chierici, R. (IP2I, Lyon) ; Hansen, H. (IP2I, Lyon) ; Margueron, J. (IP2I, Lyon) ; Sordini, V. (IP2I, Lyon)
Gravitational wave-forms from coalescences of binary black hole systems and binary neutron star systems with low tidal effects can hardly be distinguished if the two systems have similar masses. [...]
arXiv:2106.05805 ; CERN-TH-2021-088. - 18 p.
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2021-06-11
04:17
Higher spin wormholes from modular bootstrap / Das, Diptarka (Indian Inst. Tech., Kanpur) ; Datta, Shouvik (CERN)
We investigate the connection between spacetime wormholes and ensemble averaging in the context of higher spin AdS$_3$/CFT$_2$. [...]
arXiv:2106.03889 ; CERN-TH-2021-085. - 31 p.
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2021-06-11
04:17
Sliding Naturalness / D'Agnolo, Raffaele Tito (IPhT, Saclay) ; Teresi, Daniele (CERN)
We present a novel framework to solve simultaneously the electroweak hierarchy problem and the strong-CP problem. [...]
arXiv:2106.04591 ; CERN-TH-2021-055. - 8 p.
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2021-06-11
04:17
An analysis of Bayesian estimates for missing higher orders in perturbative calculations / Duhr, Claude (CERN) ; Huss, Alexander (CERN) ; Mazeliauskas, Aleksas (CERN) ; Szafron, Robert (Brookhaven)
With current high precision collider data, the reliable estimation of theoretical uncertainties due to missing higher orders (MHOs) in perturbation theory has become a pressing issue for collider phenomenology. [...]
arXiv:2106.04585 ; CERN-TH-2021-058. - 62 p.
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