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2025-02-01
04:27
Update on two-level sampling for glueball observables in quenched QCD / Barca, Lorenzo (NIC, Zeuthen) ; Finkenrath, Jacob (CERN) ; Knechtli, Francesco (Wuppertal U.) ; Peardon, Michael (Trinity Coll., Dublin) ; Schaefer, Stefan (NIC, Zeuthen) ; Urrea-Niño, Juan Andrés (Wuppertal U.)
We report our progress in combining a two-level sampling algorithm with distillation techniques for calculations of disconnected diagrams in quenched QCD. [...]
DESY-25-014 ; CERN-TH-2025-025 ; arXiv:2501.17988. - 10.
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2025-01-31
05:09
Hessian-free force-gradient integrators and their application to lattice QCD simulations / Schäfers, Kevin (Wuppertal U.) ; Finkenrath, Jacob (Wuppertal U. ; CERN) ; Günther, Michael (Wuppertal U.) ; Knechtli, Francesco (Wuppertal U.)
We present initial results on Hessian-free force-gradient integrators for lattice field theories. [...]
CERN-TH-2025-024 ; arXiv:2501.17632. - 10.
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2025-01-31
05:02
Is gauge mediation in the swampland? / Dalianis, Ioannis (Athens U.) ; Farakos, Fotis (Padua U. ; INFN, Padua) ; Kehagias, Alex (Natl. Tech. U., Athens)
We note that the typical gauge mediation of supersymmetry breaking is in tension with the global limit of the festina lente swampland bound. The alternatives are mediation/breaking schemes that decouple together with gravity, as for example gravity mediation, for which we highlight some basic phenomenological properties. [...]
arXiv:2305.17089; CERN-TH-2023-106.- 2023-07-13 - 7 p. Fulltext: PDF;

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2025-01-31
04:33
Centralized design and production of the ultra-high vacuum and laser-stabilization systems for the AION ultra-cold strontium laboratories / AION Collaboration
This paper outlines the centralised design and production of the Ultra-High-Vacuum sidearm and Laser-Stabilisation systems for the AION Ultra-Cold Strontium Laboratories. Commissioning data on the residual gas and steady-state pressures in the sidearm chambers, on magnetic field quality, on laser stabilisation, and on the loading rate for the 3D Magneto-Optical Trap are presented. [...]
arXiv:2305.20060; AION-REPORT/2023-03; CERN-TH-2023-094.- 2023-03-01 - 27 p. - Published in : AVS Quantum Sci. 6 (2023) 014409 Fulltext: PDF;

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2025-01-29
05:07
Are Parton Showers Inside a Quark-Gluon Plasma Strongly Coupled? A Theorist's Test / Arnold, Peter (Virginia U.) ; Elgedawy, Omar (Virginia U. ; South China Normal U. ; Cape Town U., Dept. Math. ; Guangzhou U.) ; Iqbal, Shahin (Quaid-i-Azam U. ; CERN)
We study whether in-medium showers of high-energy quarks and gluons can be treated as a sequence of individual splitting processes or whether there is significant quantum overlap between where one splitting ends and the next begins. Accounting for the Landau-Pomeranchuk-Migdal (LPM) effect, we calculate such overlap effects to leading order in high-energy $\alpha_s(\mu)$ for the simplest theoretical situation. [...]
arXiv:2501.15115; CERN-TH-2024-163.- 2024-12-17 - 7 p. - Published in : PoS: ICHEP2024 (2025) , pp. 582 Fulltext: 2501.15115 - PDF; document - PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024, pp.582

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2025-01-28
04:18
Precise Predictions for Event Shapes in Diphoton Production at the LHC / Buccioni, Federico (Munich, Tech. U.) ; Chen, Xuan (Shandong U.) ; Feng, Wei-Jie (Zurich U.) ; Gehrmann, Thomas (Zurich U.) ; Huss, Alexander (King's Coll. London ; CERN) ; Marcoli, Matteo (Durham U., IPPP)
Photon pair production is an important benchmark process at the LHC, entering Higgs boson studies and new physics searches. [...]
CERN-TH-2025-018 ; IPPP/25/03 ; TUM-HEP-1553/25 ; ZU-TH 05/25 ; arXiv:2501.14021. - 6.
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2025-01-25
04:12
Fast interpolation grids for the Drell-Yan process / Cruz-Martinez, Juan (CERN) ; Huss, Alexander (CERN) ; Schwan, Christopher (Wurzburg U.)
Modern analyses of experimental data from hadron colliders rely on theory predictions at high orders in perturbation theory and a variety of input settings. [...]
CERN-TH-2025-013 ; arXiv:2501.13167. - 9.
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2025-01-24
04:57
Energy-Energy Correlator for jet production in $pp$ and $pA$ collisions / Barata, João (CERN) ; Kang, Zhong-Bo (UCLA ; SUNY, Stony Brook) ; Mayo López, Xoán (Santiago de Compostela U., IGFAE) ; Penttala, Jani (UCLA)
In this Letter, we study the collinear limit of the Energy-Energy Correlator (EEC) in single-inclusive jet production in proton-proton ($pp$) and proton-nucleus ($pA$) collisions. [...]
CERN-TH-2024-201 ; arXiv:2411.11782. - 7.
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2025-01-24
04:57
Testing the Froggatt-Nielsen Mechanism with Lepton Violation / Cornella, Claudia (CERN) ; Curtin, David (Toronto U.) ; Krnjaic, Gordan (Fermilab ; Chicago U., Astron. Astrophys. Ctr. ; Chicago U., KICP) ; Mellors, Micah (Toronto U.)
The Froggatt-Nielsen (FN) mechanism offers an elegant explanation for the observed masses and mixings of Standard Model fermions. [...]
FERMILAB-PUB-25-0010-T ; CERN-TH-2024-215 ; arXiv:2501.00629. - 6.
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2025-01-24
04:56
On the Fate of Stringy Non-Invertible Symmetries / Heckman, Jonathan J. ; McNamara, Jacob ; Montero, Miguel ; Sharon, Adar ; Vafa, Cumrun ; Valenzuela, Irene (CERN)
Non-invertible symmetries in quantum field theory (QFT) generalize the familiar product rule of groups to a more general fusion rule. [...]
arXiv:2402.00118 ; CERN-TH-2024-019. - 56.
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