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2026-03-19
04:06
Shocks from Exploding Primordial Black Holes in the Early Universe / Vanvlasselaer, Miguel (Brussels U., IIHE ; U. Barcelona (main)) ; Trifinopoulos, Sokratis (MIT ; CERN ; Zurich U.) ; Klipfel, Alexandra P. (MIT) ; Kaiser, David I. (MIT)
We investigate how Hawking radiation from low-mass primordial black holes deposits energy into the early-universe plasma and show that the resulting phenomena are hydrodynamic rather than purely diffusive. [...]
CERN-TH-2026-048 ; MIT-CTP/5978 ; arXiv:2603.15746. - 34.
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2026-03-19
04:01
The photon-energy spectrum in $B\to X_sγ$ to N$^3$LO: light-fermion and large-$N_{\rm c}$ corrections / Fael, Matteo (U. Padua, Dept. Phys. Astron. ; INFN, Padua) ; Lange, Fabian (Zurich U. ; PSI, Villigen) ; Schönwald, Kay (CERN) ; Steinhauser, Matthias (KIT, Karlsruhe, TTP)
We calculate the photon-energy spectrum of the inclusive radiative decay $B\to X_sγ$, induced by the electromagnetic dipole operator $O_7$, to next-to-next-to-next-to-leading order and consider the complete corrections for light fermions, for the contributions with two closed massive fermion loops, and for the limit of large QCD colour factors $N_{\rm c}$ in the remaining part. [...]
CERN-TH-2026-049 ; P3H-26-018 ; TTP26-007 ; ZU-TH 11/26 ; arXiv:2603.15751. - 38.
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2026-03-19
04:01
$gg \to ZH$ at NLO matched to parton showers with ggxy and POWHEG / Davies, Joshua (Liverpool U., Dept. Math.) ; Schönwald, Kay (CERN) ; Steinhauser, Matthias (KIT, Karlsruhe, TTP) ; Stremmer, Daniel (KIT, Karlsruhe, TTP)
We implement the recently-calculated analytic expressions for the next-to-leading order QCD corrections to $gg\to ZH$ in ggxy. [...]
CERN-TH-2026-051 ; P3H-26-019 ; TTP26-008 ; arXiv:2603.15762. - 23.
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2026-03-18
04:42
Standard Model tests with smeared experiment and theory / Jüttner, Andreas (CERN ; Southampton U.)
For Standard Model processes in which on-shell intermediate hadronic states contribute - including inclusive semileptonic decays and long-distance effects in rare exclusive decays such as $D\to π\ell\ell$ and $B\to K^{(\ast)}\ell\ell$ - spectral-reconstruction techniques provide a promising route to model-independent lattice QCD predictions for use in phenomenological predictions. [...]
CERN-TH-2026-050 ; arXiv:2603.15487. - 25.
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2026-03-17
04:09
Factorization Beyond Coherence / Becher, Thomas (U. Bern (main)) ; Hager, Patrick (CERN) ; Neubert, Matthias (U. Mainz, PRISMA ; Cornell U., LEPP) ; Schwienbacher, Dominik (U. Bern (main))
We derive a novel factorization theorem for $N$-jettiness at hadron colliders, which incorporates coherence-violating effects induced by Glauber gluons and several new momentum modes. [...]
CERN-TH-2026-039 ; MITP-26-008 ; arXiv:2603.12383. - 8.
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2026-03-14
04:38
Alice in Warpland: KK modes, Warped Compactifications and the Swampland / Raucci, Salvatore (Madrid, IFT ; Madrid, Autonoma U.) ; Ruiz, Ignacio (CERN) ; Valenzuela, Irene (Madrid, IFT ; Madrid, Autonoma U. ; CERN)
We investigate the asymptotic behavior of Kaluza-Klein (KK) towers in warped compactifications to Minkowski space. [...]
IFT-UAM/CSIC-26-22 ; CERN-TH-2026-040 ; arXiv:2603.11163. - 75.
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2026-03-14
04:38
Scale-Dependent Loop Corrections to the Inflationary Power Spectrum / Braglia, Matteo (CERN) ; Céspedes, Sebastián (Imperial Coll., London) ; Pinol, Lucas (LPENS, Paris ; LJLL, Paris)
Loop corrections to primordial correlation functions are unavoidable due to the non-linear nature of gravity. [...]
CERN-TH-2026-038 ; arXiv:2603.12216. - 26.
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2026-03-12
04:14
Renormalisation and matching of massless scalar correlation functions in Soft de Sitter Effective Theory / Beneke, Martin (Munich, Tech. U.) ; Hager, Patrick (CERN) ; Sanfilippo, Andrea F. (Granada U.)
For light and massless scalar fields, cosmological correlation functions suffer from infrared divergences and secular logarithms. [...]
TUM-HEP-1592/26 ; CERN-TH-2026-020 ; arXiv:2603.09438. - 75.
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2026-03-12
04:05
Analytic next-to-leading order electroweak corrections to Higgs boson pair production at high energies / Davies, Joshua (Liverpool U.) ; Schönwald, Kay (CERN) ; Steinhauser, Matthias (KIT, Karlsruhe, TTP) ; Zhang, Hantian (CERN)
We compute the complete next-to-leading order electroweak corrections to the form factors entering gluon-induced Higgs boson pair production. [...]
CERN-TH-2026-034 ; P3H-26-017 ; TTP26-006 ; arXiv:2603.08789. - 19.
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2026-03-11
04:43
Higher-order hadronic vacuum polarization contribution to the muon $g-2$ from lattice QCD / Beltran, Arnau (U. Mainz, PRISMA) ; Conigli, Alessandro (Mainz U. ; Darmstadt, GSI) ; Kuberski, Simon (CERN) ; Meyer, Harvey B. (U. Mainz, PRISMA ; Mainz U. ; CERN) ; Ottnad, Konstantin (U. Mainz, PRISMA ; Bonn U., HISKP) ; Wittig, Hartmut (U. Mainz, PRISMA ; Mainz U. ; Darmstadt, GSI)
We present the first lattice QCD calculation of the next-to-leading order hadronic vacuum polarization contribution to the muon anomalous magnetic moment with sub-percent precision. [...]
MITP-26-006 ; CERN-TH-2026-035 ; arXiv:2603.06806. - 44.
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