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TH Preprints

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2021-06-13
04:01
Discriminating same-mass Neutron Stars and Black Holes gravitational wave-forms / Coupechoux, J.-F. ; Arbey, A. ; Chierici, R. ; Hansen, H. ; Margueron, J. ; Sordini, V.
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. [...]
CERN-TH-2021-088 ; arXiv:2106.05805. - 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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2021-06-08
04:00
Thermal WIMPs and the Scale of New Physics: Global Fits of Dirac Dark Matter Effective Field Theories / GAMBIT Collaboration
We assess the status of a wide class of WIMP dark matter (DM) models in light of the latest experimental results using the global fitting framework $\textsf{GAMBIT}$. [...]
arXiv:2106.02056 ; ADP-21-9/T1156 ; CERN-TH-2021-084 ; CP3-21-15 ; P3H-21-038 ; TTK-21-19, gambit-physics-21. - 37 p.
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2021-06-02
04:34
SMEFT Constraints on New Physics Beyond the Standard Model / Ellis, John
The Fermi effective theory of the weak interaction helped identify the structure of the electroweak sector of the Standard Model, and the chiral effective Lagrangian pointed towards QCD as the theory of the strong interactions. [...]
arXiv:2105.14942 ; KCL-PH-TH/2021-035 ; CERN-TH-2021-083. - 13 p.
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2021-06-01
04:01
First Constraints on Light Axions from the Binary Neutron Star Gravitational Wave Event GW170817 / Zhang, Jun ; Lyu, Zhenwei ; Huang, Junwu ; Johnson, Matthew C. ; Sagunski, Laura ; Sakellariadou, Mairi ; Yang, Huan
Light axion fields, if they exist, can be sourced by neutron stars due to their coupling to nuclear matter, and play a role in binary neutron star mergers. [...]
arXiv:2105.13963 ; Imperial/TP/2021/JZ/01 ; KCL-PH-TH-2021-25 ; CERN-TH-2021-061, LIGO-P2100161. - 7 p.
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2021-05-26
04:05
Di-Higgs production ($\gamma \gamma \to h h$) in Composite Models / Bharucha, A. (Aix-Marseille U.) ; Cacciapaglia, G. (IP2I, Lyon) ; Deandrea, A. (IP2I, Lyon) ; Gaur, N. (Delhi U.) ; Harada, D. (Boskovic Inst., Zagreb) ; Mahmoudi, F. (IP2I, Lyon ; CERN) ; Sridhar, K. (TIFR, Mumbai, Dept. Theor. Phys.)
In Standard Model (SM) Higgs Boson pair production initiated by photons ($\gamma \gamma \to h h$) is loop-generated process and thereby very sensitive to any new couplings and particles that may come in loops. [...]
arXiv:2105.11030 ; CERN-TH-2021-080 ; RBI-ThPhys-2021-23. - 10 p.
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2021-05-26
04:01
A comparative study of Higgs boson production from vector-boson fusion / Buckley, A. (Glasgow U.) ; Chen, X. (Zurich U. ; KIT, Karlsruhe, TP ; KIT, Karlsruhe, SCC) ; Cruz-Martinez, J. (INFN, Milan ; Milan U.) ; Ferrario Ravasio, S. (Oxford U., Ctr. Quantum Comp. ; Durham U., IPPP) ; Gehrmann, T. (Zurich U.) ; Glover, E.W.N. (Durham U., IPPP) ; Höche, S. (Fermilab) ; Huss, A. (CERN) ; Huston, J. (Michigan State U.) ; Lindert, J.M. (Sussex U.) et al.
The data taken in Run II at the LHC have started to probe Higgs boson production at high transverse momentum. [...]
arXiv:2105.11399 ; FERMILAB-PUB-21-218-T ; IPPP/20/101 ; MCNET-21-08 ; KA-TP-08-2021, OUTP-21-14P ; ZU-TH 22/21 ; CERN-TH-2021-081. - 29 p.
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2021-05-21
04:35
Self-Organised Localisation / Giudice, Gian F. (CERN) ; McCullough, Matthew (CERN ; Cambridge U., DAMTP) ; You, Tevong (CERN ; Cambridge U., DAMTP ; Cambridge U.)
We describe a new phenomenon in quantum cosmology: self-organised localisation. [...]
arXiv:2105.08617 ; CERN-TH-2021-077. - 99 p.
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