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Derniers ajouts:
2021-03-02
04:32
Leading-Color Two-Loop QCD Corrections for Three-Jet Production at Hadron Colliders / Abreu, S. ; Cordero, F. Febres ; Ita, H. ; Page, B. ; Sotnikov, V.
We present the complete set of leading-color two-loop contributions required to obtain next-to-next-to-leading-order (NNLO) QCD corrections to three-jet production at hadron colliders. [...]
arXiv:2102.13609 ; CERN-TH-2021-023 ; FR-PHENO-2021-06 ; MPP-2021-20. -
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2021-03-02
04:32
On the effective lifetime of $B_s \to \mu \mu \gamma$ / Carvunis, Alexandre ; Dettori, Francesco ; Gangal, Shireen ; Guadagnoli, Diego ; Normand, Camille
The $B_s \to \mu^+ \mu^- \gamma$ decay has been recently reappraised from both theoretical and experimental viewpoints. [...]
arXiv:2102.13390 ; CERN-TH-2021-026 ; LAPTH-010/21. - 30 p.
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2021-02-28
04:44
Adding Flavor to the Narain Ensemble / Datta, Shouvik ; Duary, Sarthak ; Kraus, Per ; Maity, Pronobesh ; Maloney, Alexander
We revisit the proposal that the ensemble average over free boson CFTs in two dimensions - parameterized by Narain's moduli space - is dual to an exotic theory of gravity in three dimensions dubbed $U(1)$ gravity. [...]
arXiv:2102.12509 ; CERN-TH-2021-020. - 30 p.
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2021-02-28
04:44
Nonlinear gravitational-wave memory from cusps and kinks on cosmic strings / Jenkins, Alexander C. ; Sakellariadou, Mairi
The nonlinear memory effect is a fascinating prediction of general relativity (GR), in which oscillatory gravitational-wave (GW) signals are generically accompanied by a monotonically-increasing strain which persists in the detector long after the signal has passed. [...]
arXiv:2102.12487 ; KCL-PH-TH/2021-04 ; CERN-TH-2021-016. - 29 p.
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2021-02-28
04:44
Factorization and transverse phase-space parton distributions / Wu, Bin
We first revisit impact-parameter dependent collisions of ultra-relativistic particles in quantum field theory. [...]
arXiv:2102.12916 ; CERN-TH-2021-019. - 34 p.
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2021-02-25
04:20
Semi-automated BSM model building procedures in MARTY-1.1 through a 2HDM example / Uhlrich, G. ; Mahmoudi, F. ; Arbey, A.
MARTY is a C++ computer algebra system specialized for High Energy Physics that can calculate amplitudes, squared amplitudes and Wilson coefficients in a large variety of beyond the Standard Model scenarios up to the one-loop order. It is fully independent of any other framework and its main development guideline is generality, in order to be adapted easily to any type of model. [...]
arXiv:2102.11551; CERN-TH-2021-025.- 2021-02-23 - 14 p. - Published in : PoS: TOOLS2020 (2020) , pp. 042 Fulltext: PDF;
In : Tools for High Energy Physics and Cosmology, Lyon, France, 2 - 6 Nov 2020, pp.042

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2021-02-20
04:25
Four-lepton production in gluon fusion at NLO matched to parton showers / Alioli, Simone (University of Milan - Bicocca) ; Ferrario Ravasio, Silvia (Oxford U., Theor. Phys.) ; Lindert, Jonas M. (Sussex U., Astron. Ctr.) ; Röntsch, Raoul (CERN)
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 (CERN ; Zurich U. ; PSI, Villigen) ; Hoferichter, Martin (Bern U.) ; Manzari, Claudio Andrea (Zurich U. ; PSI, Villigen)
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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