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2025-12-02
05:45
Analytical Soft Functions for Heavy-Quark Final States at Hadron Colliders / Liu, Ze Long (CAS, Beijing) ; Monni, Pier Francesco (CERN)
We present the first computation of the complete two-loop, fully-differential soft function describing the production of a heavy-quark pair in association with a color-singlet system at hadron colliders. [...]
CERN-TH-2025-244 ; arXiv:2511.23280. - 5.
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2025-12-02
05:14
Scalar field effective potentials in de Sitter spacetime / García-Consuegra, Lucas Vicente (King's Coll. London (main)) ; Rajantie, Arttu (CERN ; Imperial Coll., London)
We investigate two different definitions of a scalar field effective potential in quantum field theory in de Sitter spacetime: the standard textbook definition, and the constraint effective potential proposed by O'Raifeartaigh et al. [...]
CERN-TH-2025-217 ; KCL-PH-TH/2025-1 ; Imperial-TP-2025-AR-1 ; arXiv:2511.23076. - 27.
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2025-11-25
04:55
Euclidean coordinate-space perturbation theory with a single mass scale / Schröder, Christoph L. (U. Mainz, PRISMA) ; Meyer, Harvey B. (U. Mainz, PRISMA ; Helmholtz Inst., Mainz ; CERN)
We develop elements of coordinate-space perturbation theory for massive quantum field theories in general $d$-dimensional Euclidean space. [...]
arXiv:2511.17349 ; CERN-TH-2025-239 ; MITP-25-074. - 47.
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2025-11-25
04:49
A new suite of Lund-tree observables to resolve jets / van Beekveld, Melissa (NIKHEF, Amsterdam) ; Buonocore, Luca (CERN) ; Ferrario Ravasio, Silvia (CERN ; Turin U. ; INFN, Turin) ; Monni, Pier Francesco (CERN) ; Soto-Ontoso, Alba (Granada U.) ; Soyez, Gregory (IPhT, Saclay)
We introduce a class of collider observables, named Lund-Tree Shapes (LTS), defined from declustering trees originating from the Lund jet plane representation of the QCD radiation pattern in multi-jet scattering processes. [...]
CERN-TH-2025-213 ; Nikhef 2025-016 ; arXiv:2511.16723. - 32.
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2025-11-22
09:00
KrkNLO matching and phenomenology for vector boson processes / Sarmah, Pratixan (Jagiellonian U. (main)) ; Siódmok, Andrzej (Jagiellonian U. (main) ; CERN) ; Whitehead, James (Jagiellonian U. (main))
The combination of NLO matrix elements with parton showers is indispensable for LHC physics. [...]
CERN-TH-2025-231/MCNET-25-26 ; CERN-TH-2025-231 ; MCNET-25-26 ; arXiv:2511.16605. - 35.
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2025-11-21
04:10
The quark jet function for $k_T$-like variables in NNLO QCD / Buonocore, Luca (CERN) ; Grazzini, Massimiliano (Zurich U.) ; Guadagni, Flavio (Zurich U.) ; Haag, Jürg (U. Bern, AEC) ; Rottoli, Luca (Milan Bicocca U. ; INFN, Milan Bicocca)
The precise description of jet processes requires observables capable of efficiently capturing the dynamics of the energy flow in hadronic final states. We consider a class of tranverse-momentum like resolution variables that smoothly describe the $n+1$ to $n$ jet transition in multi-jet processes. [...]
arXiv:2508.19226; ZU-TH 54/25; CERN-TH-2025-167.- 2025-11-12 - 20 p. - Published in : Eur. Phys. J. C 85 (2025) 1290 Fulltext: document - PDF; 2508.19226 - PDF;

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2025-11-20
05:09
Uncharted Logarithmic Structures in QCD Transverse-Energy Flow / Dasgupta, Mrinal (Manchester U.) ; Fraley, Alexander (Manchester U.) ; Monni, Pier Francesco (CERN) ; Nabeebaccus, Saad (Manchester U.)
We investigate the QCD transverse-energy ($E_T$) flow distribution within an azimuthal region of phase space, defined by an angular interval $Δϕ$ on the plane transverse to a chosen jet axis. [...]
CERN-TH-2025-209 ; arXiv:2511.14681. - 5.
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2025-11-18
07:54
Keeping It Renormalizable: Minimal Baryogenesis induced Asymmetric Dark Matter / Escudero, Miguel (CERN) ; Hambye, Thomas (U. Brussels (main)) ; Hati, Chandan (Valencia U., IFIC)
Many asymmetric dark matter scenarios have been proposed to date. [...]
CERN-TH-2025-234 ; ULB-TH/25-08 ; arXiv:2511.10731. - 10.
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2025-11-15
05:55
$L_μ-L_τ$ gauge bosons in beam dumps and supernovae / Blinov, Nikita (York U., Canada) ; Fox, Patrick J. (Fermilab) ; Kelly, Kevin J. (Texas A-M) ; Plestid, Ryan (Caltech ; CERN) ; Zhou, Tao (Texas A-M ; Cincinnati U.)
We study the phenomenology of a sub-GeV $L_μ-L_τ$ gauge boson. [...]
arXiv:2511.09619 ; FERMILAB-PUB-25-0818-T ; MI-HET-869 ; CALT-TH/2025-034 ; CERN-TH-2025-229. - 16.
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2025-11-15
05:33
Eigenfunctions of deformed Schrödinger equations / François, Matijn (U. Geneva (main) ; CERN) ; Grassi, Alba (U. Geneva (main) ; CERN) ; Pedroni, Tommaso (SISSA, Trieste ; INFN, Trieste ; IGaP, Trieste)
We study the spectral problems associated with the finite-difference operators $H_N = 2 \cosh(p) + V_N(x)$, where $V_N(x)$ is an arbitrary polynomial potential of degree $N$. [...]
CERN-TH-2025-230 ; arXiv:2511.10636. - 38.
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