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TH Preprints

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2021-02-20
04:25
Four-lepton production in gluon fusion at NLO matched to parton showers / Alioli, Simone ; Ferrario Ravasio, Silvia ; Lindert, Jonas M. ; Röntsch, Raoul
We present a calculation of the next-to-leading order (NLO) QCD corrections to gluon-induced electroweak gauge boson pair production, $gg \to ZZ$ and $gg \to W^+W^-$, matched to the PYTHIA8 parton shower in the POWHEG approach. [...]
arXiv:2102.07783 ; IPPP/20/79 ; CERN-TH-2021-022. - 15 p.
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2021-02-17
04:18
Fully Differential Higgs Boson Production to Third Order in QCD / Chen, X. ; Gehrmann, T. ; Glover, E.W.N. ; Huss, A. ; Mistlberger, B. ; Pelloni, A.
We present fully differential predictions for the production cross section of a Higgs boson via the gluon fusion mechanism at next-to-next-to-next-to leading order (N$^3$LO) in QCD perturbation theory. [...]
arXiv:2102.07607 ; CERN-TH-2021-021 ; IPPP/20/80 ; KA-TP-25-2021 ; SLAC-PUB-17588 ; ZU-TH 07/21. - 6 p.
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2021-02-10
04:12
Searching for Physics Beyond the Standard Model in an Off-Axis DUNE Near Detector / Breitbach, Moritz ; Buonocore, Luca ; Frugiuele, Claudia ; Kopp, Joachim ; Mittnacht, Lukas
Next generation neutrino oscillation experiments like DUNE and T2HK are multi-purpose observatories, with a rich physics program beyond oscillation measurements. [...]
arXiv:2102.03383 ; MITP-21-004 ; ZU-TH-5/21 ; CERN-TH-2021-018. - 28 p.
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2021-02-09
04:01
The Fermi constant from muon decay versus electroweak fits and CKM unitarity / Crivellin, Andreas ; Hoferichter, Martin ; Manzari, Claudio Andrea
The Fermi constant ($G_F$) is extremely well measured through the muon lifetime, defining one of the key fundamental parameters in the Standard Model (SM). [...]
arXiv:2102.02825 ; CERN-TH-2021-017 ; PSI-PR-21-02 ; ZU-TH 04/21. - 7 p.
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2021-01-23
04:14
Dark matter-electron scattering in dielectrics / Knapen, Simon (CERN) ; Kozaczuk, Jonathan (UC, San Diego) ; Lin, Tongyan (UC, San Diego)
A number of direct detection experiments are searching for electron excitations created by scattering of sub-GeV dark matter. [...]
arXiv:2101.08275 ; CERN-TH-2021-013. - 13 p.
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2021-01-22
04:13
Combined Constraints on First Generation Leptoquarks / Crivellin, Andreas (CERN ; Zurich U. ; PSI, Villigen) ; Müller, Dario (Zurich U. ; PSI, Villigen) ; Schnell, Luc (Zurich, ETH ; Ec. Polytech., Palaiseau (main))
In this article we perform a combined analysis of low energy precision constraints and LHC searches for leptoquarks which couple to first generation fermions. [...]
arXiv:2101.07811 ; CERN-TH-2021-012 ; PSI-PR-21-01 ; ZU-TH 01/21. - 12 p.
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2021-01-20
04:01
Black hole quasinormal modes in Deser-Woodard nonlocal gravity / Chen, Che-Yu (Taiwan, Inst. Phys.) ; Park, Sohyun (CERN)
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 (Bohr Inst. ; Nordita ; Royal Inst. Tech., Stockholm) ; Heissenberg, Carlo (Nordita ; Royal Inst. Tech., Stockholm ; Uppsala U.) ; Russo, Rodolfo (Queen Mary, U. of London) ; Veneziano, Gabriele (CERN ; College de France)
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. - 17 p.
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2021-01-15
04:01
Axion assisted Schwinger effect / Domcke, Valerie (CERN ; EPFL, Lausanne, LPPC) ; Ema, Yohei (DESY) ; Mukaida, Kyohei (CERN)
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 (CERN)
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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