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2025-04-01
04:28
Axial perturbations of black holes with primary scalar hair / Charmousis, Christos (IJCLab, Orsay ; CERN) ; Iteanu, Simon (IJCLab, Orsay) ; Langlois, David (APC, Paris) ; Noui, Karim (IJCLab, Orsay)
We study axial perturbations of static black holes with primary hair in a family of degenerate higher-order scalar-tensor (DHOST) theories. [...]
CERN-TH-2025-058 ; arXiv:2503.22348.
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2025-04-01
04:24
Precision Tests in $b\to s\ell^+\ell^-$ ($\ell=e,\mu$) at FCC-ee / Bordone, Marzia (Zurich U. ; CERN) ; Cornella, Claudia (CERN) ; Davighi, Joe (CERN)
The rare semi-leptonic decays $B\to K^\ast \ell^+\ell^-$, with $\ell=e, \mu$, are highly sensitive to new physics (NP) due to their suppression in the Standard Model (SM). [...]
CERN-TH-2025-065 ; ZU-TH 22/25 ; arXiv:2503.22635.
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2025-04-01
04:24
Kaon Physics: A Cornerstone for Future Discoveries / Aebischer, Jason ; Akmete, Atakan Tugberk ; Aliberti, Riccardo ; Altmannshofer, Wolfgang ; Ambrosino, Fabio ; Ammendola, Roberto ; Antonelli, Antonella ; Anzivino, Giuseppina ; Ashanujjaman, Saiyad ; Bandiera, Laura et al.
The kaon physics programme, long heralded as a cutting-edge frontier by the European Strategy for Particle Physics, continues to stand at the intersection of discovery and innovation in high-energy physics (HEP). [...]
CERN-TH-2025-066 ; arXiv:2503.22256.
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2025-03-29
04:58
On the open TS/ST correspondence / François, Matijn ; Grassi, Alba
The topological string/spectral theory correspondence establishes a precise, non-perturbative duality between topological strings on local Calabi-Yau threefolds and the spectral theory of quantized mirror curves. [...]
CERN-TH-2025-049 ; arXiv:2503.21762.
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2025-03-27
04:11
Master integrals for semi-inclusive cuts of massless four-loop propagators / Magerya, Vitaly (CERN) ; Fekésházy, Levente (Hamburg U., Inst. Theor. Phys. II ; Eotvos U.)
We present the analytic calculation of all master integrals for 3-, 4-, and 5-particle semi-inclusive cuts of four-loop massless propagators by means of differential equations. [...]
CERN-TH-2025-061 ; DESY-25-048 ; arXiv:2503.19837.
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2025-03-27
04:07
Operator K-complexity in DSSYK: Krylov complexity equals bulk length / Ambrosini, Marco (Geneva U., Dept. Theor. Phys.) ; Rabinovici, Eliezer (Hebrew U. ; CERN) ; Sánchez-Garrido, Adrián (Southampton U.) ; Shir, Ruth (Luxembourg U.) ; Sonner, Julian (Geneva U., Dept. Theor. Phys.)
In this paper we study the notion of complexity under time evolution in chaotic quantum systems with holographic duals. [...]
CERN-TH-2025-040 ; arXiv:2412.15318.
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2025-03-20
04:07
Finite-temperature bubble nucleation with shifting scale hierarchies / Kierkla, Maciej (Warsaw U.) ; Schicho, Philipp (Geneva U.) ; Swiezewska, Bogumila ; Tenkanen, Tuomas V.I. (Helsinki Inst. of Phys.) ; van de Vis, Jorinde (CERN)
Focusing on supercooled phase transitions in models with classical scale symmetry, we formulate a state-of-the art framework for computing the bubble-nucleation rate, accounting for the presence of various energy scales. [...]
CERN-TH-2025-046 ; HIP-2024-27/TH ; arXiv:2503.13597.
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2025-03-19
04:32
Testing the QCD formation time with reconstructed parton splittings / Brewer, Jasmine (Oxford U., Theor. Phys.) ; van der Schee, Wilke (CERN ; Utrecht U. (main) ; NIKHEF, Amsterdam) ; Wiedemann, Urs (CERN)
In high-energy elementary collisions the space-time ordering of parton branching processes is not accessible experimentally. [...]
CERN-TH-2025-053 ; arXiv:2503.11764.
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2025-03-18
04:01
Forecasting Constraints on SIGW with Future Pulsar Timing Array Observations / Cecchini, Chiara ; Franciolini, Gabriele ; Pieroni, Mauro
Pulsar Timing Arrays are playing a crucial role in the ongoing gravitational wave astronomy revolution. [...]
CERN-TH-2025-045 ; arXiv:2503.10805.
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2025-03-15
04:31
$\eta$, $\eta^\prime$ mesons from lattice QCD in fully physical conditions / Ottnad, Konstantin (U. Mainz, PRISMA ; Mainz U., Inst. Kernphys.) ; Bacchio, Simone (Cyprus Inst.) ; Finkenrath, Jacob (CERN) ; Kostrzewa, Bartosz (Bonn U., HISKP ; U. Bonn, Phys. Inst., BCTP) ; Petschlies, Marcus (Bonn U., HISKP ; U. Bonn, Phys. Inst., BCTP) ; Pittler, Ferenc (Cyprus Inst.) ; Urbach, Carsten (Bonn U., HISKP ; U. Bonn, Phys. Inst., BCTP) ; Wenger, Urs (Bern U.)
We determine masses and mixing parameters of the $\eta$ and $M_{\eta^\prime}$ meson in lattice QCD. [...]
MITP-25-021 ; CERN-TH-2025-052 ; arXiv:2503.09895.
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