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TH Preprints

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2025-12-12
04:01
Neutrinos, B-L Symmetry and the Dark Dimension / Montero, Miguel (Madrid, IFT) ; Vafa, Cumrun (Harvard U., Phys. Dept.) ; Valenzuela, Irene (Madrid, IFT ; CERN)
We consider realizations of a gauged B-L symmetry in the context of the Dark Dimension scenario, where the SM lives on a codimension one brane in 5d spacetime. [...]
IFT-25-158 ; CERN-TH-2025-255 ; arXiv:2512.09052. - 16.
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2025-12-11
04:48
Two-loop renormalization of general bosonic effective field theories / Guedes, Guilherme (CERN) ; Roosmale Nepveu, Jasper (Taiwan, Natl. Taiwan U. ; Unlisted, TW)
The renormalization of higher-dimensional operators in quantum field theory is essential for phenomenological analyses in particle physics, and plays a significant role in the study of critical phenomena. [...]
CERN-TH-2025-250 ; arXiv:2512.08827. - 24.
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2025-12-06
04:21
Dynamical Love Numbers for Black Holes and Beyond from Shell Effective Field Theory / Kosmopoulos, Dimitrios (CERN) ; Perrone, Davide (U. Geneva (main)) ; Solon, Mikhail (UCLA)
We construct a novel effective field theory for a compact body coupled to gravity, whose key feature is that the dynamics of gravitational perturbations is explicitly determined by known solutions in black hole perturbation theory in four dimensions. [...]
arXiv:2512.04002 ; CERN-TH-2025-247. - 5.
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2025-12-06
04:20
Powerful Yukawas / Cohen, Timothy (CERN ; Ecole Polytechnique, Lausanne ; Oregon U.) ; McCullough, Matthew (CERN) ; Weiner, Neal (CERN ; New York U. (main))
We introduce a class of models where the masses of the light Standard Model fermions are due to an Effective Field Theory operator that appears beyond dimension-4 in the power counting expansion, resulting in a `Powerful Yukawa'. [...]
CERN-TH-2025-227 ; arXiv:2512.04270. - 12.
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2025-12-06
04:20
How large can lepton mixing be? / de Blas, J. (Granada U.) ; Giuliano, C. (Granada U.) ; Guedes, G. (DESY ; CERN) ; López, R. Sánchez (Granada U.) ; Santiago, J. (Granada U.)
We show that, contrary to common expectations, the observed charged leptons can have a substantial mixing with new heavier fermions, at the level of 20$\%$ [...]
CERN-TH-2025-248 ; arXiv:2512.04148. - 38.
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2025-12-05
04:51
Jet Production at NNLO: Exploring a New Scheme / Buonocore, Luca (CERN) ; Grazzini, Massimiliano (U. Zurich (main)) ; Guadagni, Flavio (U. Zurich (main)) ; Haag, Jürg (U. Bern, AEC) ; Kallweit, Stefan (Zurich U.) ; Rottoli, Luca (Milan Bicocca U. ; INFN, Milan Bicocca)
We consider dijet production in $e^+e^-$ collisions and in $H\to b{\bar b}$ decays at next-to-next-to-leading order (NNLO) in perturbative QCD. [...]
ZU-TH 83/25 ; CERN-TH-2025-232 ; arXiv:2512.03954. - 26.
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2025-12-03
04:49
Three-loop corrections to $gg\to ZH$ in the large top quark mass limit / Davies, Joshua (U. Liverpool (main)) ; Grau, Dominik (KIT, Karlsruhe) ; Schönwald, Kay (Zurich U.) ; Steinhauser, Matthias (KIT, Karlsruhe) ; Stremmer, Daniel (KIT, Karlsruhe)
We compute three-loop virtual corrections to the associated production of a Higgs boson with a $Z$ boson in the large-$m_t$ limit. [...]
CERN-TH-2025-245 ; P3H-25-101 ; TTP25-047 ; arXiv:2512.00156. - 15.
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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 / Vicente García-Consuegra, Lucas (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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