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TH Preprints

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2021-01-20
04:01
Black hole quasinormal modes in Deser-Woodard nonlocal gravity / Chen, Che-Yu ; Park, Sohyun
We investigate the gravitational perturbations of the Schwarzschild black hole in the nonlocal gravity model recently proposed by Deser and Woodard (DW-II). [...]
arXiv:2101.06600 ; CERN-TH-2021-011. - 10 p.
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2021-01-16
04:01
Radiation Reaction from Soft Theorems / Di Vecchia, Paolo ; Heissenberg, Carlo ; Russo, Rodolfo ; Veneziano, Gabriele
Radiation reaction (RR) terms at the third post-Minkowskian (3PM) order have recently been found to be instrumental in restoring smooth continuity between the non-relativistic, relativistic, and ultra-relativistic (including the massless) regimes. [...]
arXiv:2101.05772 ; CERN-TH-2021-008 ; NORDITA 2021-001 ; QMUL-PH-21-03 ; UUITP-03/21. - 16 p.
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2021-01-15
04:01
Axion assisted Schwinger effect / Domcke, Valerie ; Ema, Yohei ; Mukaida, Kyohei
We point out an enhancement of the pair production rate of charged fermions in a strong electric field in the presence of time dependent classical axion-like background field, which we call axion assisted Schwinger effect. [...]
arXiv:2101.05192 ; DESY-21-006 ; CERN-TH-2021-010. - 18 p.
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2021-01-15
04:01
The Schwarzian sector of higher spin CFTs / Datta, Shouvik
Two-dimensional conformal field theories with Virasoro symmetry generically contain a Schwarzian sector. [...]
arXiv:2101.04980 ; CERN-TH-2021-009. - 21 p.
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2021-01-15
04:00
Scattering from production in 2d / Tourkine, Piotr ; Zhiboedov, Alexander
In 1968, Atkinson proved the existence of functions that satisfy all S-matrix axioms in four spacetime dimensions. [...]
arXiv:2101.05211 ; CERN-TH-2020-218. - 34 p.
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2021-01-12
04:25
Hawking radiation by spherically-symmetric static black holes for all spins: I -- Teukolsky equations and potentials / Arbey, Alexandre ; Auffinger, Jérémy ; Geiller, Marc ; Livine, Etera R. ; Sartini, Francesco
In the context of the dynamics and stability of black holes in modified theories of gravity, we derive the Teukolsky equations for massless fields of all spins in general spherically-symmetric and static metrics. [...]
arXiv:2101.02951 ; CERN-TH-2021-007. - 18 p.
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2021-01-12
04:24
Remarks on the numerical impact of potential theoretical systematics in the prediction of QCD instanton cross sections / Mangano, Michelangelo
We discuss the origin and size of potential uncertainties arising in the estimate of cross sections for the production of multiparticle final states induced by QCD instantons at the LHC..
arXiv:2101.02719 ; CERN-TH-2021-005. - 5 p.
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2021-01-08
04:35
Relic density of dark matter in the inert doublet model beyond leading order for the low mass region: 3. Annihilation in 3-body final state / Banerjee, Shankha ; Boudjema, Fawzi ; Chakrabarty, Nabarun ; Sun, Hao
We perform the first one-loop electroweak corrections for $2 \to 3$ processes for dark matter annihilation. [...]
arXiv:2101.02167 ; LAPTH-003/21 ; CERN-TH-2021-003. - 18 p.
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2021-01-08
04:34
Relic density of dark matter in the inert doublet model beyond leading order for the low mass region: 4. The Higgs resonance region / Banerjee, Shankha ; Boudjema, Fawzi ; Chakrabarty, Nabarun ; Sun, Hao
One-loop electroweak corrections to the annihilation cross-sections of dark matter in the Higgs resonance region of the inert doublet model (IDM) are investigated. [...]
arXiv:2101.02170 ; LAPTH-004/21 ; CERN-TH-2021-004. - 20 p.
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2021-01-08
04:34
Relic density of dark matter in the inert doublet model beyond leading order for the low mass region: 1. Renormalisation and constraints / Banerjee, Shankha ; Boudjema, Fawzi ; Chakrabarty, Nabarun ; Sun, Hao
The present paper is the first in a series that addresses the calculation of the full one-loop corrections of dark matter (DM) annihilation cross-sections in the low mass region of the inert doublet model (IDM). [...]
arXiv:2101.02165 ; LAPTH-001/21 ; CERN-TH-2021-001. - 33 p.
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