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2025-12-24
04:52
A Composite Theory of Higgs and Flavour / Davighi, Joe ; Isidori, Gino
We introduce a composite Higgs model in which a flavour deconstructed gauge group is embedded in the strong sector. [...]
CERN-TH-2025-267 ; ZU-TH 88/25 ; arXiv:2512.19650. - 10.
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2025-12-24
04:52
First-Principles Formalism for Simulating Self-Interacting Dark Matter / Ramos, Maria ; Cohen, Timothy ; Lisanti, Mariangela
It is plausible that the dark matter particles have non-gravitational interactions among themselves. [...]
CERN-TH-2025-263 ; arXiv:2512.17998. - 6.
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2025-12-20
04:04
Probing scalar and pseudoscalar new physics using rare kaon decays / D'Ambrosio, G. (INFN, Naples) ; Iyer, A.M. (Indian Inst. Tech., New Delhi) ; Mahmoudi, F. (IP2I, Lyon ; CERN ; ENS, Lyon, Lab. Phys.) ; Neshatpour, S. (IP2I, Lyon)
Rare kaon decays provide sensitive tests of new physics. [...]
CERN-TH-2025-254 ; arXiv:2512.16903. - 16.
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2025-12-20
04:03
Scalar damping in cosmological phase transitions / Ekstedt, Andreas (Uppsala U.) ; Konstandin, Thomas (DESY) ; van de Vis, Jorinde (CERN)
We outline how to calculate the scalar damping term during a cosmological phase transition from kinetic theory. [...]
DESY-25-195 ; CERN-TH-2025-262 ; arXiv:2512.16663. - 25.
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2025-12-20
04:00
The Physics of Herwig 7 / Bellm, J. (Lund U.) ; Bewick, G. (Durham U., IPPP) ; Ferrario Ravasio, S. (Turin U. ; INFN, Turin) ; Gieseke, S. (KIT, Karlsruhe, TP) ; Grellscheid, D. (U. Bergen (main)) ; Kiebacher, S. (KIT, Karlsruhe, TP) ; Kirchgaeßer, P. (KIT, Karlsruhe, TP) ; Loshaj, F. (KIT, Karlsruhe, TP) ; Masouminia, M.R. (Durham U., IPPP) ; Nail, G. (U. Edinburgh (main)) et al.
We present the physics foundations and recent developments of Herwig 7, the modern successor of the original HERWIG and Herwig++ series. [...]
CERN-TH-2025-252 ; IPPP-25-57 ; HERWIG-2025-01 ; KA-TP-36-2025 ; MCNET-25-31 ; arXiv:2512.16645. - 195.
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2025-12-20
04:00
Charged black holes in the 1/N expansion / Obied, Georges (U. Oxford (main) ; U. Chicago (main)) ; Reig, Mario (Oxford U.(main) ; CERN)
We study some implications of $SU(N)\times U(1)$ theories coupled to gravity in the large-$N$ limit. [...]
CERN-TH-2025-256 ; arXiv:2512.15855. - 32.
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2025-12-17
04:44
The heavy quark-antiquark asymmetry in the variable flavor number scheme / Behring, A. (Garching, Max Planck Inst.) ; Blümlein, J. (DESY ; Dortmund U.) ; De Freitas, A. (Linz U., RISC) ; von Manteuffel, A. (Regensburg U.) ; Schneider, C. (Linz U., RISC) ; Schönwald, K. (CERN)
The twist-2 heavy-quark and antiquark distributions, as defined in the variable flavor number scheme, turn out to be different due to QCD corrections from three-loop onward. [...]
DESY 25--185 ; CERN--TH--2025--259 ; MPP--2025--227 ; RISC Report series 25--10 ; DESY 25-185 ; CERN-TH-2025-259 ; MPP-2025-227 ; RISC Report series 25-10 ; arXiv:2512.13508. - 17.
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2025-12-16
04:05
Constraints on light QCD and CP-violating axions from the death line of rotation-powered pulsars / Witte, Samuel J. (U. Oxford (main) ; DESY ; U. Hamburg (main)) ; Caputo, Andrea (CERN ; U. Rome La Sapienza (main) ; Weizmann Inst.) ; Stelzl, Stefan (Ecole Polytechnique, Lausanne ; Barcelona, IFAE) ; Chernoglazov, Alexander (Princeton, Inst. Advanced Study) ; Philippov, Alexander A. (Maryland U.) ; Rajendran, Surjeet (Johns Hopkins U.)
For axions that couple to nucleons, the presence of dense nuclear matter can displace the axion from its vacuum minimum, sourcing large field gradients around neutron stars (and, more generally, compact objects). [...]
DESY-25-111 ; CERN-TH-2025-251 ; arXiv:2512.11023. - 60.
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2025-12-13
04:34
Hiding a Light Vector Boson from Terrestrial Experiments: A Chargephobic Dark Photon / Esseili, Haidar (Oregon U.) ; Kribs, Graham D. (Oregon U. ; CERN)
We calculate the terrestrial, astrophysical and cosmological constraints on a light vector boson that couples to an arbitrary combination of the electromagnetic and $B-L$ currents of the Standard Model. [...]
CERN-TH-2025-242 ; arXiv:2512.10916. - 54.
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2025-12-13
04:12
Conformal collider bootstrap in ${\mathcal N}=4$ SYM / Dempsey, Ross (MIT) ; Karlsson, Robin (Oxford U., Inst. Math.) ; Pufu, Silviu S. (Princeton U. (main)) ; Zahraee, Zahra (Perimeter Inst. Theor. Phys.) ; Zhiboedov, Alexander (CERN)
We use a combination of perturbation theory, holography, supersymmetric localization, integrability, and numerical conformal bootstrap methods to constrain the energy-energy correlator in $\text{SU}(N_c)$${\mathcal N}=4$ SYM at finite coupling. [...]
CERN-TH-2025-212 ; MIT-CTP/5979 ; PUPT-2659 ; arXiv:2512.10796. - 97.
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